Electric supply substations are vital component of electrical power system that delivers electrical power from generating stations to consumers. Electric supply substation generally deals with high voltage and current ratings, proper analysis and protection is essential for safety of operating staff lives and electrical equipment installed in the vicinity. Malfunctioning of electric supply substation has two drastic e ffects; one is cost for the replacement of equipment and second is the cost of entire down-time. Analysis and protection of electric supply substation using “Electrical Transient Analyzer Program (ETAP)” is presented in this paper. A 132kV electric supply substation was simulated; fault analysis, load flow study and protection scheme was designed that can enhance the performance of Pakistan’s electrical power system.
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2013 The International Conference on Technological Advances in Electrical, Electronics and Computer Engineering (TAEECE)
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This paper presents a planning framework for integrating energy storage (ES) systems into the distribution system. An ES system is deployed to simultaneously provide multiple benefits, also known as stacked-benefits, for the feeder. The primary and secondary application scenarios for the feeder are identified. The proposed ES deployment approach includes the following steps: (1) size the ES system for primary application; (2) identify optimal ES locations based on both primary and secondary application scenarios; (3) calculate the ES accommodation capacity for each potential location; and (4) develop control methods for ES units and conduct grid impact analysis to demonstrate ES applications. For the selected feeder, the primary application for ES deployment is to provide the N-1 contingency requirement. During normal operating conditions, ES is programmed for multiple secondary applications: voltage management and ancillary services by frequency regulation. A probabilistic approach is presented to obtain the optimal ES size for providing the N-1 contingency requirement. Optimal ES locations are obtained based on secondary application scenarios. Real and reactive power control methods are developed to demonstrate the viability of deploying an ES system for simultaneously providing multiple applications. The simulation results show that ES can successfully provide the stacked-benefits for the distribution circuit. The proposed framework is generic and can be employed for the ES integration analysis of any feeder, with different sets of primary and secondary applications.
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2013 IEEE Power & Energy Society General Meeting
