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Papers by sonali kulkarni
International Journal of Current Engineering and Technology, 2011
Recently, the penetration of renewable energy (RE) into existing electricity system is increasing... more Recently, the penetration of renewable energy (RE) into existing electricity system is increasing in order to deal with increasing renewable energy installation in response to ever increasing demand for electric power. The power generated using renewable energy sources is generally distributed generation across various locations. The integration of these distributed generation coupled with variable nature of consumer power demand poses threat to the grid satiability, power quality and reliability. In order to integrate the distributed renewable energy generation into existing system smoothly grid codes are developed for wind turbines besides detailed revision in planning and grid infrastructure development. This paper deals with the need and study of Low Voltage Ride Through (LVRT) and High Voltage Ride Through (HVRT), grid code requirements to be satisfied by wind turbine generators (WTG) before getting connected to the grid network. The LVRT and HVRT, grid code helps the power sys...
Smart Network Inspired Paradigm and Approaches in IoT Applications
In recent years, the penetration of renewable energy (RE) into the power system is ever increasin... more In recent years, the penetration of renewable energy (RE) into the power system is ever increasing to meet the exponential increase in power demand. The number of prosumers, generating renewable energy in a distributed manner and participating in a power network is also increasing drastically. This has posed serious issues to grid stability, as instantaneous power demand and renewable power generation are inherently intermittent and dynamic in nature. Precise demand–supply balance is critical but essential for maintaining the stability of the grid. In order to accommodate excess penetration of RE and maintain demand–supply balance, a detailed revision in infrastructure and planning or smart grid implementation becomes essential. In this work, we have designed an innovative hybrid ARMA demand forecast model, using historical power demand of Maharashtra state in India. The forecast results of hybrid ARMA model are compared with traditional statistical models. A precise power demand balance is key to smooth, stable and reliable operation of smart grid or modern power network, models designed in this work shall be useful to smart grid: energy management system in decision-making processes related to real-time operation and control of power system.
International Journal of Computer and Electrical Engineering
Over the past three decades power demand has increased remarkably due to industrialization and in... more Over the past three decades power demand has increased remarkably due to industrialization and increased demand of automation. On the other hand conventional energy sources like fossil fuel are ever depleting. Therefore, industry and scientist are focusing on renewable energy (RE) sources like wind, solar etc., to address twin challenge of energy security and reduction in pollution caused by excessive fossil fuel usage. Further, number of consumers generating renewable energy in distributed manner and participating in the power network is increasing drastically. This exponential rise in penetration of renewable energy into existing power system has posed challenges to grid stability, reliability and power quality. A precise power demand-generation balance is challenging in smooth and reliable operation network, irrespective of unpredictable demand and intermittent nature of renewable power generation. In this research paper we have discussed and designed time series generation forecast models for wind and solar using historical RE generation data for Maharashtra state of India. Forecast results of designed solar and wind power generation models are compared. The wind and solar power generation forecasts obtained in this paper will help the power system operators; while taking decisions related to energy mix, generation planning, scheduling to maintain reliable and economical operation of power system.
2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016
The penetration of renewable energy (RE) into existing electricity system is ever increasing from... more The penetration of renewable energy (RE) into existing electricity system is ever increasing from past three decades. The existing electricity grid is not capable enough to handle excess penetration of RE. This is challenging especially due to the variable and intermittent nature of some popular renewable energy sources like wind and solar. In order to handle excess penetration of RE into existing system, a detailed revision in planning, infrastructure development is required. The recent challenge is to have healthy, reliable and smart electrical power transmission and distribution system in order to accommodate distributed generating plants and consumers.
Over the past three decades global energy consumption has increased drastically due to industrial... more Over the past three decades global energy consumption has increased drastically due to industrialization and automation. On the other hand conventional energy sources like fossil fuel are ever depleting. Therefore, industry and scientist are focusing on renewable energy sources – those address twin challenge of energy security at the same time minimizing pollution caused by excessive fossil fuel usage. Over past three decades renewable energy installations like wind and solar energy are becoming popular globally. This exponential rise in renewable energy installation posed challenges to grid stability, reliability and its power quality. This is due to distributed and intermittent nature of renewable energy generation. There is continuous evolution on wind turbine technology and associated power electronics to address these challenges economically. Present days wind farms consist of various types of turbine technologies featuring fixed speed, variable speed, semi variable speed opera...
Over the past three decades global energy consumption has increased drastically due to industrial... more Over the past three decades global energy consumption has increased drastically due to industrialization, automation of various systems and rise in utilization of domestic machine appliances. In order to fulfill the increasing power demand, the power sector is looking for renewable energy sources as an alternative to conventional sources. The Renewable Energy is generated using distributed generation. Renewable Energy is unpredictable, non storable and intermittent due to varying nature of natural resources. Today's biggest challenge is to accommodate excess generation of Renewable Energy into existing power system without disturbing power quality. The power quality and hence stability of power system gets affected due penetration of Renewable Energy and loading effect of transmission lines corresponding to small disturbances. Therefore, it is a challenging task to maintain healthy, reliable and smart electrical power transmission and distribution system. This paper deals with the power quality parameters, challenges in Renewable Energy grid integration and the possible solutions to maintain power quality.
International Journal of Current Engineering and Technology, 2011
Recently, the penetration of renewable energy (RE) into existing electricity system is increasing... more Recently, the penetration of renewable energy (RE) into existing electricity system is increasing in order to deal with increasing renewable energy installation in response to ever increasing demand for electric power. The power generated using renewable energy sources is generally distributed generation across various locations. The integration of these distributed generation coupled with variable nature of consumer power demand poses threat to the grid satiability, power quality and reliability. In order to integrate the distributed renewable energy generation into existing system smoothly grid codes are developed for wind turbines besides detailed revision in planning and grid infrastructure development. This paper deals with the need and study of Low Voltage Ride Through (LVRT) and High Voltage Ride Through (HVRT), grid code requirements to be satisfied by wind turbine generators (WTG) before getting connected to the grid network. The LVRT and HVRT, grid code helps the power sys...
Smart Network Inspired Paradigm and Approaches in IoT Applications
In recent years, the penetration of renewable energy (RE) into the power system is ever increasin... more In recent years, the penetration of renewable energy (RE) into the power system is ever increasing to meet the exponential increase in power demand. The number of prosumers, generating renewable energy in a distributed manner and participating in a power network is also increasing drastically. This has posed serious issues to grid stability, as instantaneous power demand and renewable power generation are inherently intermittent and dynamic in nature. Precise demand–supply balance is critical but essential for maintaining the stability of the grid. In order to accommodate excess penetration of RE and maintain demand–supply balance, a detailed revision in infrastructure and planning or smart grid implementation becomes essential. In this work, we have designed an innovative hybrid ARMA demand forecast model, using historical power demand of Maharashtra state in India. The forecast results of hybrid ARMA model are compared with traditional statistical models. A precise power demand balance is key to smooth, stable and reliable operation of smart grid or modern power network, models designed in this work shall be useful to smart grid: energy management system in decision-making processes related to real-time operation and control of power system.
International Journal of Computer and Electrical Engineering
Over the past three decades power demand has increased remarkably due to industrialization and in... more Over the past three decades power demand has increased remarkably due to industrialization and increased demand of automation. On the other hand conventional energy sources like fossil fuel are ever depleting. Therefore, industry and scientist are focusing on renewable energy (RE) sources like wind, solar etc., to address twin challenge of energy security and reduction in pollution caused by excessive fossil fuel usage. Further, number of consumers generating renewable energy in distributed manner and participating in the power network is increasing drastically. This exponential rise in penetration of renewable energy into existing power system has posed challenges to grid stability, reliability and power quality. A precise power demand-generation balance is challenging in smooth and reliable operation network, irrespective of unpredictable demand and intermittent nature of renewable power generation. In this research paper we have discussed and designed time series generation forecast models for wind and solar using historical RE generation data for Maharashtra state of India. Forecast results of designed solar and wind power generation models are compared. The wind and solar power generation forecasts obtained in this paper will help the power system operators; while taking decisions related to energy mix, generation planning, scheduling to maintain reliable and economical operation of power system.
2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016
The penetration of renewable energy (RE) into existing electricity system is ever increasing from... more The penetration of renewable energy (RE) into existing electricity system is ever increasing from past three decades. The existing electricity grid is not capable enough to handle excess penetration of RE. This is challenging especially due to the variable and intermittent nature of some popular renewable energy sources like wind and solar. In order to handle excess penetration of RE into existing system, a detailed revision in planning, infrastructure development is required. The recent challenge is to have healthy, reliable and smart electrical power transmission and distribution system in order to accommodate distributed generating plants and consumers.
Over the past three decades global energy consumption has increased drastically due to industrial... more Over the past three decades global energy consumption has increased drastically due to industrialization and automation. On the other hand conventional energy sources like fossil fuel are ever depleting. Therefore, industry and scientist are focusing on renewable energy sources – those address twin challenge of energy security at the same time minimizing pollution caused by excessive fossil fuel usage. Over past three decades renewable energy installations like wind and solar energy are becoming popular globally. This exponential rise in renewable energy installation posed challenges to grid stability, reliability and its power quality. This is due to distributed and intermittent nature of renewable energy generation. There is continuous evolution on wind turbine technology and associated power electronics to address these challenges economically. Present days wind farms consist of various types of turbine technologies featuring fixed speed, variable speed, semi variable speed opera...
Over the past three decades global energy consumption has increased drastically due to industrial... more Over the past three decades global energy consumption has increased drastically due to industrialization, automation of various systems and rise in utilization of domestic machine appliances. In order to fulfill the increasing power demand, the power sector is looking for renewable energy sources as an alternative to conventional sources. The Renewable Energy is generated using distributed generation. Renewable Energy is unpredictable, non storable and intermittent due to varying nature of natural resources. Today's biggest challenge is to accommodate excess generation of Renewable Energy into existing power system without disturbing power quality. The power quality and hence stability of power system gets affected due penetration of Renewable Energy and loading effect of transmission lines corresponding to small disturbances. Therefore, it is a challenging task to maintain healthy, reliable and smart electrical power transmission and distribution system. This paper deals with the power quality parameters, challenges in Renewable Energy grid integration and the possible solutions to maintain power quality.