Development of microgrid based PV-restoration incorporating demand responce

Hakiimuddin , Shaari (2014) Development of microgrid based PV-restoration incorporating demand responce. Project Report. UTeM. (Submitted)

Text DEVELOPMENT OF MICROGRID BASED PV-RESTORATION INCORPORATING DEMAND RESPONSE 24pages.pdf Download (363kB)

Abstract

Today’s electrical grid was designed to operate as a vertical structure consisting of generation, transmission, and distribution with the supported of controls devices to maintain system reliability, stability, and efficiency. However, system operator are now facing new challenges including the penetration of renewable energy resources in the legacy system, rapid technological change, and different types of market players and end users. Technical challenges associated with the operation and controls of microgrid are immense. The microgrid need to optimize their performance during grid connected mode and island mode operation. Interruption of the main grid supply will cause the microgrid disconnect itself and microgrid will loss power. By making the microgrid operates in stand-alone operation, the microgrid need to isolate from the main grid and need a reference voltage to restore and deliver power among the microgrid. Ensuring stable operation during network disturbance, maintaining stability and power quality in the islanding mode of operation requires the development of sophisticated control strategies for microgrid inverter in order to provide stable frequency and voltage in the presence of arbitrarily varying loads. This project focuses on the protection for restoration of PV-connected microgrid incorporating demand response during grid supply interruption. The project aim to restore the power generate by PV system by using grid-tie inverter and pure sine wave inverter aided by battery storage. This project is done to develop a control strategy for restoration of PV-connected microgrid with load control algorithm. The control strategy was designed to be installed on the residential system that comprise of microgrid system with a PV source. The method of load control management was applied to obtain the voltage stability during islanded mode operation. The load control scheme is depend on the current generate by PV. According to the result from conducted experiment, the load control algorithm was operate to stabilize the microgrid voltage by controlled the load demand depend on the PV generation.

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