Abstract—Photovoltaic systems (PV) have been growing extensively due to various government incentives to improve the security of energy supply and mitigate the climate change issue. Usually, customers own the PV systems that operate on the customer networks to reduce the fuel generated electricity. The customers expect the PV systems to operate as reliable as possible in order to justify their financial investment. However, based on the current practice, any PV systems must be shut down immediately if the customer networks are apart from the grid. Such a practice is established to minimise the damages or risks due to the unregulated voltage and frequency on the islanded networks. However, this practice can cause any available clean energy to be wasted during the outage of the grid. Therefore, a wireless fuzzy-controlled energy storage system is proposed to be used with the PV systems to provide an effective means of regulating the frequency and voltage throughout the outage of the grid. A number of case studies have been carried out to prove that the energy storage systems are an effective approach of regulating the voltage and frequency of the islanded networks. The customers can continue to gain their financial benefits from their existing PV systems. The utility company can improve the performance of their networks by reducing the number of power outages. 
 

Index Terms—Fuzzy control, energy storage, photovoltaic systems, islanded operation.

Cite: Ace Lin Yi Khaw, Yun Seng Lim, and Jianhui Wong, "Feasibility of Continues Operation of Photovoltaic Systems with Energy Storage during Grid Outages," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 7, No. 1, pp. 1-6, January 2018. Doi: 10.18178/ijeetc.7.1.1-6