Nazar Malik | King Saud University (original) (raw)
Papers by Nazar Malik
icgst.com
Reinforcement learning algorithm based-on solving RTDP does not have to evaluate the entire state... more Reinforcement learning algorithm based-on solving RTDP does not have to evaluate the entire state space in order to deliver an optimal policy, and yet it can often obtain good policy. The DP always is employed to be a learning Agent's environment. In this paper, we propose a ...
2014 5th International Conference on Intelligent Systems, Modelling and Simulation, 2014
2012 4th International Conference on Intelligent and Advanced Systems (ICIAS2012), 2012
Abstract Optimization of the total amount of pollutants emitted from the hybrid power plants is t... more Abstract Optimization of the total amount of pollutants emitted from the hybrid power plants is the main objective of the Environmental Friendly Dispatch (EFD). The EFD problem decides the amount of generation to be allocated to each generating unit including renewable sources so that the total emission of polluting gases is minimized without violating the system constraints. This type of optimization becomes more efficient in countries like Saudi Arabia where high potential of crude oil and renewable resources exists. This paper ...
Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum ... more Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum based products, it is also blessed with high potential of renewable energy sources like solar and wind. Untapped wind and solar energy sources, which are abundant throughout the kingdom, can be connected and optimally integrated into the grid through the use of smart grid technologies and the expansion of transmission facilities. Smart grid is an auto-balancing, self-monitoring power grid that accepts power from any source of fuel like oil, sun or wind and delivers electricity from suppliers to consumers. It helps to control the use of appliances in order to save energy, reduces cost and increase reliability. This paper describes the attributes of a smart grid and how these act as driving force to modernize the electrical power grid. The necessity of conservation of oil in Saudi Arabia is argued. Moreover, the vast availability of renewable energy sources like solar and wind in Saudi Arabia and advantages in utilizing these sources through smart grid technologies are advocated in this paper.
ABSTRACT Operating policies with minimum pollutants emission and transmission loss for an entire ... more ABSTRACT Operating policies with minimum pollutants emission and transmission loss for an entire day is power dispatch operation are discussed in this paper. One of the main objectives of Economic/Environmental Dispatch (EED) and Environmental Friendly Dispatch (EFD) is to optimize the amount of pollutants emitted from the hybrid power plants. EED is an important multi-objective problem which minimizes both the fuel cost of generation and the amount of pollutants emission while EFD has the single objective of optimizing the amount of emission only. Here, EED and EFD are modified and renamed as EEDL and EFDL, respectively by including minimization of transmission loss as an additional objective. Optimization of these problems determines the amount of optimum generation which to be allocated to each generating unit including renewable sources without violating system constraints and minimizing the amount of pollutant emissions as well as transmission losses. Extraction and storing of renewable energy at off-peak times or at times when there would be a surplus of its availability and reuse of such stored energy during its unavailable periods makes such approach more effective. Optimum EEDL and EFDL can be obtained by extracting maximum renewable energy during their availability periods, then using it for both available and unavailable periods with the aid of energy storage. MATLAB simulations are performed using IEEE-30 test bus data with 6 generators to illustrate the benefits of renewable energy storage in reducing the unwanted pollutants emission.
2012 International Conference on Green Technologies (ICGT), 2012
ABSTRACT Minimizations of fuel cost and transmission loss during power dispatch are the main obje... more ABSTRACT Minimizations of fuel cost and transmission loss during power dispatch are the main objectives of the problem described in this paper. The dispatch problem decides the amount of generation to be allocated to each generating unit including renewable sources so that the total fuel cost and transmission losses are minimized without violating the system constraints. This paper considers the dispatch problem for hybrid power system consists of thermal units, solar, wind and the storage. Consistent optimum results can be obtained by extracting maximum renewable energy during the available period and using it for both available and unavailable periods with the aid of energy storage. This paper illustrates the optimization of fuel cost and transmission losses with renewable storage using MATLAB simulations.
2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies, 2011
Abstract For many consumers there are loads which need to be on for a subinterval between two tim... more Abstract For many consumers there are loads which need to be on for a subinterval between two time instants, but it is immaterial during which subinterval it is run. In many price based Demand Response (DR) programs such as Time of Use (TOU), Critical Peak Pricing (CPP), Extreme Day Pricing customers are informed about the prices on a day ahead bases. By scheduling the subintervals during which the loads are used consumers can minimize their electricity bill and by so doing the maximum demand on the system will decrease. This ...
2011 2nd International Conference on Electric Power and Energy Conversion Systems (EPECS), 2011
Abstract Demand Response is a useful tool to limit the maximum demand thereby reducing the need o... more Abstract Demand Response is a useful tool to limit the maximum demand thereby reducing the need of peak power generation units which are normally less efficient and operational for only small time interval. DR enables consumers to manage their consumption according to the available generation which means electric supply is generation oriented rather than demand oriented. Considering the challenges facing Saudi Arabia in electrical sector, demand response initiative can be very beneficial. This paper describes various demand ...
2011 Asia-Pacific Power and Energy Engineering Conference, 2011
Abstract Even though Saudi Arabia is the world's largest producer and export... more Abstract Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum based products, it is also blessed with high potential of renewable energy sources like solar and wind. Untapped wind and solar energy sources, which are abundant throughout the Kingdom, can be connected and optimally integrated into the grid through the use of smart grid technologies and the expansion of transmission facilities. Smart grid is an auto-balancing, self monitoring power grid that accepts power from any source of fuel-like ...
2013 International Renewable and Sustainable Energy Conference (IRSEC), 2013
ABSTRACT The demand for energy is increasing as a result of the growth in both population and ind... more ABSTRACT The demand for energy is increasing as a result of the growth in both population and industrial development. To improve the energy efficiency, consumers need to be more aware of their energy consumption. In recent years, utilities have started developing new electric energy meters which are known as smart meters. A smart meter is a digital energy meter that measures the consumption of electrical energy and provides other additional information as compared to the traditional energy meter. The aim is to provide the consumer and supplier an easy way to monitor the energy. Smart meters are considered a key component of the smart grid as these will allow more interactivity between the consumers and the provider. Smart meters will enable two-way and real-time communication between the consumers and the provider. Considering the increase of electricity demand in Saudi Arabia, smart meters can decrease the overall energy consumption. This paper presents the development of a GSM and ZigBee based smart meter. This meter can measure the energy and send the information to the service provider, who can store this information and notify the consumer through SMS messages or through the internet.
IEP-SAC Journal, 2010
ABSTRACT "Grid" is a term used for an electricity network which may support all... more ABSTRACT "Grid" is a term used for an electricity network which may support all or some of these three distinct operations: Electricity generation, Electric power transmission and Electricity distribution. As a network, the sense of grid may be used to refer to an entire continent's electrical network, a regional transmission network or may be used to describe a sub network such as a local utility's transmission or distribution system. Smart grid is the convergence of information and operational technologies applied to the electric grid allowing sustainable options to customers and improved security, reliability and efficiency to utilities. This paper describes the attributes of a smart grid and how these act as driving force to modernize the electrical power grid. The features outlined help to understand the smart grid’s working to fulfill the satisfaction of both energy producers and consumers and to provide power quality for the range of needs in the 21st century economy. The paper also points out the advantages of this technology and required improvements in this field for risk limited operations.
Iee Proceedings B Electric Power Applications, 1993
Page 1. I Selection of the excitatio braking of induction mac AH AI-Bahrani, PhD NH Malik, PhD In... more Page 1. I Selection of the excitatio braking of induction mac AH AI-Bahrani, PhD NH Malik, PhD Indexing terms: Dynamic braking, Induction motors, Self-excitation Abstract: The application of self excitation in dynamic braking ...
Iee Proceedings C Generation, Transmission and Distribution, 1993
ABSTRACT
IEEE Power Engineering Review, 1985
are then the usual voltage magnitudes and phase angles plus one extra scalar quantity, p , called... more are then the usual voltage magnitudes and phase angles plus one extra scalar quantity, p , called the system imbalance, representing the difference between the total system genera¬ tions and the system set point generation. The pfs LF avoids the need to specify a slack bus and permits the derivation of an efficient two-stage economic dispatch scheme which very naturally decouples the dispatch of real power and related quantities from the scheduling of reactive power, voltages and transformer tap settings. In the first stage use is made of the energy balance equation and classical economic dispatch results. This stage is therefore very fast and avoids numeri¬
IEE Proceedings C Generation, Transmission and Distribution, 1990
ABSTRACT
IEEE Transactions on Electrical Insulation, 1990
A description is given of an optoelectronic system for detecting and locating corona discharges i... more A description is given of an optoelectronic system for detecting and locating corona discharges in SF6-filled gas-insulated systems (GIS). The system consists of optical fiber links, photomultiplier light detectors, an operational amplifier, and a computer-based data collection system. Various factors that can influence the optical discharge detection sensitivity are investigated. It is shown that an optical system can detect discharges
Pediatric Neurology, 1988
A description is given of the design and implementation of a simple scheme to achieve online and ... more A description is given of the design and implementation of a simple scheme to achieve online and dynamic power-factor improvement of single and three-phase induction motors subjected to variable loads. The proposed scheme uses a fixed-capacitor thyristor-controlled-reactor type of static compensator along with associated control circuits. The results show that under all loading conditions, a power factor of almost unity
IEEE Transactions on Electrical Insulation, 1985
Using 112 mm diameter, Harrison profile stainless steel polsihed electrodes, uniform field dc bre... more Using 112 mm diameter, Harrison profile stainless steel polsihed electrodes, uniform field dc breakdown voltages are measured for N20 mixtures with SF6, CC12F2, and CO2 in the pressure range of 0.02 to 1 MPa and gap lengths up to 20 mm. The results show that the breakdown strength (E8/P) of SF6, CC12F2 and their mixtures decreases with pressure while it remains practically constant for N20 and N20-C02 mixtures over the investigated pressure range. From the breakdown data, limiting sparkover strengths (Es/P)iim are calculated for various mixtures which are expressed by a general expression (Es/P) Zim = A+B (X)C, where X is the percentage content of SF6 in SF6-N20 mixtures, CC12F2 in CC12F2-N20 mixtures, and N20 in N20-CO2 mixtures. Values of constants A, B, and C are given for the investigated gas mixtures.
icgst.com
Reinforcement learning algorithm based-on solving RTDP does not have to evaluate the entire state... more Reinforcement learning algorithm based-on solving RTDP does not have to evaluate the entire state space in order to deliver an optimal policy, and yet it can often obtain good policy. The DP always is employed to be a learning Agent's environment. In this paper, we propose a ...
2014 5th International Conference on Intelligent Systems, Modelling and Simulation, 2014
2012 4th International Conference on Intelligent and Advanced Systems (ICIAS2012), 2012
Abstract Optimization of the total amount of pollutants emitted from the hybrid power plants is t... more Abstract Optimization of the total amount of pollutants emitted from the hybrid power plants is the main objective of the Environmental Friendly Dispatch (EFD). The EFD problem decides the amount of generation to be allocated to each generating unit including renewable sources so that the total emission of polluting gases is minimized without violating the system constraints. This type of optimization becomes more efficient in countries like Saudi Arabia where high potential of crude oil and renewable resources exists. This paper ...
Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum ... more Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum based products, it is also blessed with high potential of renewable energy sources like solar and wind. Untapped wind and solar energy sources, which are abundant throughout the kingdom, can be connected and optimally integrated into the grid through the use of smart grid technologies and the expansion of transmission facilities. Smart grid is an auto-balancing, self-monitoring power grid that accepts power from any source of fuel like oil, sun or wind and delivers electricity from suppliers to consumers. It helps to control the use of appliances in order to save energy, reduces cost and increase reliability. This paper describes the attributes of a smart grid and how these act as driving force to modernize the electrical power grid. The necessity of conservation of oil in Saudi Arabia is argued. Moreover, the vast availability of renewable energy sources like solar and wind in Saudi Arabia and advantages in utilizing these sources through smart grid technologies are advocated in this paper.
ABSTRACT Operating policies with minimum pollutants emission and transmission loss for an entire ... more ABSTRACT Operating policies with minimum pollutants emission and transmission loss for an entire day is power dispatch operation are discussed in this paper. One of the main objectives of Economic/Environmental Dispatch (EED) and Environmental Friendly Dispatch (EFD) is to optimize the amount of pollutants emitted from the hybrid power plants. EED is an important multi-objective problem which minimizes both the fuel cost of generation and the amount of pollutants emission while EFD has the single objective of optimizing the amount of emission only. Here, EED and EFD are modified and renamed as EEDL and EFDL, respectively by including minimization of transmission loss as an additional objective. Optimization of these problems determines the amount of optimum generation which to be allocated to each generating unit including renewable sources without violating system constraints and minimizing the amount of pollutant emissions as well as transmission losses. Extraction and storing of renewable energy at off-peak times or at times when there would be a surplus of its availability and reuse of such stored energy during its unavailable periods makes such approach more effective. Optimum EEDL and EFDL can be obtained by extracting maximum renewable energy during their availability periods, then using it for both available and unavailable periods with the aid of energy storage. MATLAB simulations are performed using IEEE-30 test bus data with 6 generators to illustrate the benefits of renewable energy storage in reducing the unwanted pollutants emission.
2012 International Conference on Green Technologies (ICGT), 2012
ABSTRACT Minimizations of fuel cost and transmission loss during power dispatch are the main obje... more ABSTRACT Minimizations of fuel cost and transmission loss during power dispatch are the main objectives of the problem described in this paper. The dispatch problem decides the amount of generation to be allocated to each generating unit including renewable sources so that the total fuel cost and transmission losses are minimized without violating the system constraints. This paper considers the dispatch problem for hybrid power system consists of thermal units, solar, wind and the storage. Consistent optimum results can be obtained by extracting maximum renewable energy during the available period and using it for both available and unavailable periods with the aid of energy storage. This paper illustrates the optimization of fuel cost and transmission losses with renewable storage using MATLAB simulations.
2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies, 2011
Abstract For many consumers there are loads which need to be on for a subinterval between two tim... more Abstract For many consumers there are loads which need to be on for a subinterval between two time instants, but it is immaterial during which subinterval it is run. In many price based Demand Response (DR) programs such as Time of Use (TOU), Critical Peak Pricing (CPP), Extreme Day Pricing customers are informed about the prices on a day ahead bases. By scheduling the subintervals during which the loads are used consumers can minimize their electricity bill and by so doing the maximum demand on the system will decrease. This ...
2011 2nd International Conference on Electric Power and Energy Conversion Systems (EPECS), 2011
Abstract Demand Response is a useful tool to limit the maximum demand thereby reducing the need o... more Abstract Demand Response is a useful tool to limit the maximum demand thereby reducing the need of peak power generation units which are normally less efficient and operational for only small time interval. DR enables consumers to manage their consumption according to the available generation which means electric supply is generation oriented rather than demand oriented. Considering the challenges facing Saudi Arabia in electrical sector, demand response initiative can be very beneficial. This paper describes various demand ...
2011 Asia-Pacific Power and Energy Engineering Conference, 2011
Abstract Even though Saudi Arabia is the world's largest producer and export... more Abstract Even though Saudi Arabia is the world's largest producer and exporter of petroleum and petroleum based products, it is also blessed with high potential of renewable energy sources like solar and wind. Untapped wind and solar energy sources, which are abundant throughout the Kingdom, can be connected and optimally integrated into the grid through the use of smart grid technologies and the expansion of transmission facilities. Smart grid is an auto-balancing, self monitoring power grid that accepts power from any source of fuel-like ...
2013 International Renewable and Sustainable Energy Conference (IRSEC), 2013
ABSTRACT The demand for energy is increasing as a result of the growth in both population and ind... more ABSTRACT The demand for energy is increasing as a result of the growth in both population and industrial development. To improve the energy efficiency, consumers need to be more aware of their energy consumption. In recent years, utilities have started developing new electric energy meters which are known as smart meters. A smart meter is a digital energy meter that measures the consumption of electrical energy and provides other additional information as compared to the traditional energy meter. The aim is to provide the consumer and supplier an easy way to monitor the energy. Smart meters are considered a key component of the smart grid as these will allow more interactivity between the consumers and the provider. Smart meters will enable two-way and real-time communication between the consumers and the provider. Considering the increase of electricity demand in Saudi Arabia, smart meters can decrease the overall energy consumption. This paper presents the development of a GSM and ZigBee based smart meter. This meter can measure the energy and send the information to the service provider, who can store this information and notify the consumer through SMS messages or through the internet.
IEP-SAC Journal, 2010
ABSTRACT "Grid" is a term used for an electricity network which may support all... more ABSTRACT "Grid" is a term used for an electricity network which may support all or some of these three distinct operations: Electricity generation, Electric power transmission and Electricity distribution. As a network, the sense of grid may be used to refer to an entire continent's electrical network, a regional transmission network or may be used to describe a sub network such as a local utility's transmission or distribution system. Smart grid is the convergence of information and operational technologies applied to the electric grid allowing sustainable options to customers and improved security, reliability and efficiency to utilities. This paper describes the attributes of a smart grid and how these act as driving force to modernize the electrical power grid. The features outlined help to understand the smart grid’s working to fulfill the satisfaction of both energy producers and consumers and to provide power quality for the range of needs in the 21st century economy. The paper also points out the advantages of this technology and required improvements in this field for risk limited operations.
Iee Proceedings B Electric Power Applications, 1993
Page 1. I Selection of the excitatio braking of induction mac AH AI-Bahrani, PhD NH Malik, PhD In... more Page 1. I Selection of the excitatio braking of induction mac AH AI-Bahrani, PhD NH Malik, PhD Indexing terms: Dynamic braking, Induction motors, Self-excitation Abstract: The application of self excitation in dynamic braking ...
Iee Proceedings C Generation, Transmission and Distribution, 1993
ABSTRACT
IEEE Power Engineering Review, 1985
are then the usual voltage magnitudes and phase angles plus one extra scalar quantity, p , called... more are then the usual voltage magnitudes and phase angles plus one extra scalar quantity, p , called the system imbalance, representing the difference between the total system genera¬ tions and the system set point generation. The pfs LF avoids the need to specify a slack bus and permits the derivation of an efficient two-stage economic dispatch scheme which very naturally decouples the dispatch of real power and related quantities from the scheduling of reactive power, voltages and transformer tap settings. In the first stage use is made of the energy balance equation and classical economic dispatch results. This stage is therefore very fast and avoids numeri¬
IEE Proceedings C Generation, Transmission and Distribution, 1990
ABSTRACT
IEEE Transactions on Electrical Insulation, 1990
A description is given of an optoelectronic system for detecting and locating corona discharges i... more A description is given of an optoelectronic system for detecting and locating corona discharges in SF6-filled gas-insulated systems (GIS). The system consists of optical fiber links, photomultiplier light detectors, an operational amplifier, and a computer-based data collection system. Various factors that can influence the optical discharge detection sensitivity are investigated. It is shown that an optical system can detect discharges
Pediatric Neurology, 1988
A description is given of the design and implementation of a simple scheme to achieve online and ... more A description is given of the design and implementation of a simple scheme to achieve online and dynamic power-factor improvement of single and three-phase induction motors subjected to variable loads. The proposed scheme uses a fixed-capacitor thyristor-controlled-reactor type of static compensator along with associated control circuits. The results show that under all loading conditions, a power factor of almost unity
IEEE Transactions on Electrical Insulation, 1985
Using 112 mm diameter, Harrison profile stainless steel polsihed electrodes, uniform field dc bre... more Using 112 mm diameter, Harrison profile stainless steel polsihed electrodes, uniform field dc breakdown voltages are measured for N20 mixtures with SF6, CC12F2, and CO2 in the pressure range of 0.02 to 1 MPa and gap lengths up to 20 mm. The results show that the breakdown strength (E8/P) of SF6, CC12F2 and their mixtures decreases with pressure while it remains practically constant for N20 and N20-C02 mixtures over the investigated pressure range. From the breakdown data, limiting sparkover strengths (Es/P)iim are calculated for various mixtures which are expressed by a general expression (Es/P) Zim = A+B (X)C, where X is the percentage content of SF6 in SF6-N20 mixtures, CC12F2 in CC12F2-N20 mixtures, and N20 in N20-CO2 mixtures. Values of constants A, B, and C are given for the investigated gas mixtures.