Habib Aalami - Academia.edu (original) (raw)

Papers by Habib Aalami

IET Generation, Transmission & Distribution, 2020

The Publisher is retracting this article, 'Energy storage system and demand response program effe... more The Publisher is retracting this article, 'Energy storage system and demand response program effects on stochastic energy procurement of large consumers considering renewable generation',

2020 6th Iranian Conference on Signal Processing and Intelligent Systems (ICSPIS)

Now a days, renewable resources, especially solar resource, are considered as one of the main ene... more Now a days, renewable resources, especially solar resource, are considered as one of the main energy generation resources in smart grids. One of the most important challenges in smart grids is improving power quality. Therefore, it is necessary to study on harmonics. Since single-phase induction motor is widely used consumer at homes, modeling and THD analysis of a single-phase induction motor which has been fed by a PV system is presented in this paper. The motor is driven by multi-stages of power conversion that consists of PV module, boost converter-inverter, and single-phase induction motor. Comparison between total harmonic distortion of single-phase induction motor current and voltage once with run capacitor and once with start-run capacitor, has been considered. Also, INC MPPT algorithm has been used to maximize the extracted power from PV system and the V/F method for adjusting the speed of the motor and controlling the output voltage of the inverter. The model has been simulated in Matlab/Simulink.

2017 Conference on Electrical Power Distribution Networks Conference (EPDC)

The main goal of this study is the use of Lyapunov's stability theory to a three-phase four-w... more The main goal of this study is the use of Lyapunov's stability theory to a three-phase four-wire shunt active power filter (SAPF), since this method has been applied effectively to other areas of converter. The dynamic model of the SAPF is first established, after that, a combination of fuzzy tracking control and Lyapunov function is suggested in order to impose a desired transient waveform on the considered three-phase four-wire distribution grid, providing robustness and insensitivity to parameter changes. Furthermore, the suggested control technique guarantees appropriate tracking of the reference current components and simplifies the global control design. The feasibility of the suggested control method is validated using comprehensive simulation studies on a four-wire SAPF in order to compensate for nonlinear and unbalanced grid-connected loads in an electrical power distribution network.

ADST Journal, 2014

According to the importance of control and dispatching centers and their critical role in the con... more According to the importance of control and dispatching centers and their critical role in the control and management of the power plants and transmission networks, construction of the dispatching centers based on the security and technical standards is vital for power systems. Existing buildings of dispatching centers are relatively old, and security standards and requirements to deal with the natural disasters and enemy attacks are not met, and also, technical standards for potential development of these centers are not considered. In this paper a method is proposed which be used to develop and reconstruct the existing control centers or new buildings. First, a comprehensive optimal location criterion is required in such a way that it could be able to cover all the scientific, technical and experimental aspects. The most important criteria include passive defence consideration, natural and unnatural disasters, civil, economic, technical performance and welfare of employees. Here in...

2017 5th Iranian Joint Congress on Fuzzy and Intelligent Systems (CFIS), 2017

A hybrid control plan for interconnection of distributed generation (DG) resources to electrical ... more A hybrid control plan for interconnection of distributed generation (DG) resources to electrical networks by means of power electronic converters is presented in this paper. The adaptive fuzzy tracking control based on Lyapunov's stability theory is suggested for the current loop of the grid-interfacing converter, in order to resolve the drawbacks of conventional control techniques. The suggested control scheme can guarantee suitable tracking of the reference current components and provide an appropriate dynamic response. By using the suggested control scheme, the reactive and active powers and also harmonic currents of grid-connected loads can be compensated with a quick transient waveform. The simulation results confirm the proper performance of the suggested control scheme.

International Journal of Smart Electrical Engineering, 2017

The main goal of this study is the use of Lyapunov’s stability theory to a three-phase four-wire ... more The main goal of this study is the use of Lyapunov’s stability theory to a three-phase four-wire shunt active power filter (SAPF), since this method has been applied effectively to other areas of converter. The dynamic model of the SAPF is first established, after that, a combination of fuzzy tracking control and Lyapunov function is suggested in order to impose a desired transient waveform on the considered three-phase four-wire distribution grid, providing robustness and insensitivity to parameter changes. Furthermore, the suggested control technique guarantees appropriate tracking of the reference current components and simplifies the global control design. The feasibility of the suggested control method is validated using comprehensive simulation studies on a four-wire SAPF in order to compensate for nonlinear and unbalanced grid-connected loads in an electrical power distribution network.

The improvement in passive defence capabilities of electric power distribution network, especiall... more The improvement in passive defence capabilities of electric power distribution network, especially in the critical sectors like "no power outage" or "fast fault recovery" is highly important. Nowadays, distributed electric power generation (DG) systems especially in military areas are being increasingly used. In the event of an error, if the location of a fault is specified, the possibility of fast resolution of the fault will be enhanced in the network. In a power distribution network which includes some DG systems, conventional methods of fault location will not be accurate and proper. In order to retain system stability, fault location in electric power distribution network has been studied in this paper. The proposed method is based on impedance matrix of distribution network which has high accuracy and speed to fault location and considering not withstanding asymmetry in the network and load; the Simulink results has high accuracy. In this study, all the Sim...

2017 Iranian Conference on Electrical Engineering (ICEE), 2017

In this paper, a hybrid control strategy for integration of distributed generations (DGs) to dist... more In this paper, a hybrid control strategy for integration of distributed generations (DGs) to distribution grids using power converters is suggested. The fuzzy tracking control based on Lyapunov function is presented for the current loop of the interfaced converter to overcome the problems of conventional control methods. The proposed control plan guarantees the system stability, appropriate tracking of the reference currents and gives a proper transient waveform. By means of the proposed control plan, the grid-interfacing converter will be utilized as: 1) power converter to inject the active power extracted from DGs to the grid, and 2) shunt active power filter (SAPF) to provide the reactive, harmonic, neutral and unbalanced currents of the grid-connected loads with a quick dynamic response. The simulation results, carried out through MATLAB/Simulink software, demonstrate the suitable operation of the suggested control plan.

Increasing the penetration of variable wind generation in power systems has created some new chal... more Increasing the penetration of variable wind generation in power systems has created some new challenges in the power system operation. In such a situation, the inclusion of flexible resources which have the potential of facilitating wind power integration is necessary. Demand response (DR) programs and emerging utility-scale energy storages (ESs) are known as two powerful flexible tools that can improve large-scale integration of intermittent wind power from technical and economic aspects. Under this perspective, this paper proposes a multi objective stochastic framework that schedules conventional generation units, bulk ESs, and DR resources simultaneously with the application to wind integration. The proposed formulation is a sophisticated problem which coordinates supply-side and demand-side resources in energy and up/down spinning reserve markets so that the cost, emission, and multi objective functions are minimized separately. In order to determine the most efficient DR progra...

Journal of Renewable and Sustainable Energy, 2020

This paper proposes a powerful and accurate prediction method for modeling wind turbine output po... more This paper proposes a powerful and accurate prediction method for modeling wind turbine output power considering uncertainty effects. It develops a probabilistic prediction method to make intervals around the forecast point samples. Due to the instable nature of the neural networks, several models with different classes are first trained, and then a combinatorial interval is constructed based on all their results. Through this idea, some lower and upper bounds are produced which can capture the uncertainty effects. In order to train the neural networks and adjust their setting parameters, a new optimization method based on the social spider optimization search (SOS) algorithm is presented which is equipped with some modification methods for increasing its capabilities. This increases the training robustness, thus resulting in stable but accurate algorithms. The experimental results of some wind turbines are used to assess the performance of the proposed method.

Iranian Journal of Science and Technology, Transactions of Electrical Engineering, 2020

International Journal of Electrical and Computer Engineering (IJECE), 2018

Due to increase in energy prices at peak periods and increase in fuel cost, involving Distributed... more Due to increase in energy prices at peak periods and increase in fuel cost, involving Distributed Generation (DG) and consumption management by Demand Response (DR) will be unavoidable options for optimal system operations. Also, with high penetration of DGs and DR programs into power system operation, the reliability criterion is taken into account as one of the most important concerns of system operators in management of power system. In this paper, a Reliability Constrained Unit Commitment (RCUC) at presence of time-based DR program and DGs integrated with conventional units is proposed and executed to reach a reliable and economic operation. Designated cost function has been minimized considering reliability constraint in prevailing UC formulation. The UC scheduling is accomplished in short-term so that the reliability is maintained in acceptable level. Because of complex nature of RCUC problem and full AC load flow constraints, the hybrid algorithm included Simulated Annealing ...

International Journal of Electrical Power & Energy Systems, 2019

Adst Journal, Mar 15, 2015

International Transactions on Electrical Energy Systems, 2016

Summary The role of Demand Side Management programs in maximizing the benefits of electricity mar... more Summary The role of Demand Side Management programs in maximizing the benefits of electricity market participants is underlined in recent decades. After power system restructuring, Demand Side Management has been divided into Demand response (DR) and energy efficiency programs. Developing Demand Bidding (DB) program enables the widespread participation of smart customers and usually is implemented as a market-driven program while Emergency Demand Response Program (EDRP) is usually implemented as a reliability-driven program. The impacts of employing these DR programs, that is, EDRP and DB, on market clearing price have been investigated in this paper. A nonlinear model for DR program is proposed considering both EDRP and DB program. The effectiveness of the proposed model is evaluated on the Garver network and Institute of Electrical and Electronics Engineers (IEEE) 30-bus test system through running a numerical study.

Adst Journal, Jan 15, 2013

Based on the IEEE standards, distributed generation (DG) resources should not be operated over th... more Based on the IEEE standards, distributed generation (DG) resources should not be operated over the critical situations in the interconnection power grid, because of the network instability considerations. These standards are severe restrictions for passive defense implementation in the power systems. In this paper, a new algorithm for employment of the micro grids equipped with the Gas Turbine Synchronous Generators (GTSG) is proposed. In an islanded distributed network, consumption and generation in the micro grids have a vital role. In this paper, two different types of load shedding methods, namely, traditional and intelligent methods are simulated considering frequency and derivative of the frequency in the system. Furthermore, according to the load and generation situations, "load shedding" and "changing the mode of the GTSG governors" are used as two different tools to prepare a robust stability in the system. Load following service is another subject which is studied in this paper. The proposed model has been applied to the load profile of an actual system using DIgSILENT software. The results show that over the critical conditions, operation of the DGs in the islanded mode is possible and reliable.

Energy Conversion and Management, 2015

Abstract This paper proposes a stochastic energy procurement problem (SEPP) for large electricity... more Abstract This paper proposes a stochastic energy procurement problem (SEPP) for large electricity consumer (LEC) with multiple energy procurement sources (EPSs) considering the effects of demand response program (DRP) and energy storage system (ESS). The EPSs contain power market (PM), bilateral contracts (BCs), micro-turbines (MTs), and renewable energy sources (RESs). Moreover, the RESs include photovoltaic (PV) systems and wind-turbines (WT). The ESS and DRP are incorporated in the SEPP by the LEC’s decision-maker to reduce the expected energy procurement cost (EEPC). Meanwhile, the uncertainty models of market price, load and RES output power are considered in the SEPP formulation. The error of forecasting of market price, load, temperature and radiation of PV systems are modeled using the normal distribution for generating the related scenarios. Also, the weibull distribution is used to generate variable wind speed scenarios for WT output power uncertainty modeling. Furthermore, the fast forward selection based on Kantorovich distance approach is used for the scenarios reduction. Finally, the influences of ESS and DRP on EEPC are investigated, and four case studies are used to illustrate the capability of the proposed SEPP. The obtained results demonstrate the efficiency of the proposed stochastic program.

IET Generation, Transmission & Distribution, 2016

The stochastic energy procurement problem (SEPP) of large electricity consumer (LEC) with multipl... more The stochastic energy procurement problem (SEPP) of large electricity consumer (LEC) with multiple energy procurement sources (EPSs) is proposed in this study. Also, the effects of demand response program (DRP) and energy storage system (ESS) on SEPP are studied in this work. The EPSs contain renewable energy sources (RESs), which include photovoltaic (PV) system and wind-turbine (WT), power market (PM), bilateral contracts and self-generation units. Also, the ESS (like as battery) and DRP are integrated in the SEPP by decision-maker of LEC to reduce the expected energy procurement cost. In the SEPP, the uncertainty models of market price, load and output power of RES (PV and WT) are considered. The normal distribution is used to generate scenarios for price, load and errors of temperature and insulation for PV output power uncertainty modelling. Also, the Weibull distribution is used to generate scenarios for wind speed for WT output power uncertainty modelling. Furthermore, the fast-forward selection based on Kantorovich distance approach is used for scenarios reduction. Actually, a case study is used to illustrate the capability and efficiency of the proposed SEPP.

International Journal of Electrical Power & Energy Systems, 2015

ABSTRACT Demand Response (DR) programs have been implemented in many competitive electricity mark... more ABSTRACT Demand Response (DR) programs have been implemented in many competitive electricity markets to prevent price spikes and power systems unreliability. Mathematical modeling of these programs helps regulators to evaluate the impact of price responsive loads on market conditions. In this paper, several nonlinear economic models of price responsive loads are derived based on price elasticity of demand and customer benefit function. The main objectives of the paper include extracting different mathematical models for Time of Use (TOU) programs, and comparing these models to find out which model shows more conservative and which one shows non-conservative results compared with the initial load curve. This could be used by ISOs or DR programs developers as a guideline to use conservative models to have lower error in load profile characteristics estimation, such as variation in peak load or amount of energy consumptions. In order to evaluate the performance of the proposed nonlinear DR models, numerical studies are conducted on the load curve of different markets. Results obtained by using different models are presented and compared considering different scenarios for price, elasticity and potentiality of DR programs implementation. Characteristics of both linear and nonlinear economic models of price responsive loads have been evaluated.

2008 43rd International Universities Power Engineering Conference, 2008

AbstractDemand Side Management (DSM) is Called Demand Response (DR) in the deregulated power mar... more AbstractDemand Side Management (DSM) is Called Demand Response (DR) in the deregulated power markets. The goals of the DR programs in the electricity power markets are different and sometimes are contradicted to each other in which they could not be optimized ...