Reliability Evaluation of Renewable Energy-Based Power System Containing Energy Storage

Abstract

In recent years, renewable energy based power plants, especially wind and solar farms are increasingly installed and operated for electric power generation. Uncertainty nature associated to the generated power of these power plants, arisen from variability of wind speed or solar radiation, effects on different aspects of power system such as reliability, operation, dynamic and so on. Energy storages in connection with renewable power plants can reduce the variability and uncertainty nature of these renewable resources. In recent years the flow batteries such as vanadium redox (VR) with large capacities are developed and so in this paper effect of this largecapacity energy storages on the reliability performance of power system containing large-scale wind and photovoltaic (PV) farms are investigated. The renewable energy-based power plants and also energy storages are different from conventional units, so, for study of power system containing these resources new methods and techniques must be developed. To this end in this paper for reliability evaluation of renewable-energy based power system containing energy storage, an analytical approach is proposed. This approach can be employed both in planning and also operation studies of the power system when large scale wind and photovoltaic farms with energy storages exist. Data associated to wind speed of Manjil and solar radiation of Jask regions both in Iran are utilized for studying the reliability evaluation of RBTS and also IEEERTS in planning phase.

Reliability evaluation of permanent magnet synchronous generator‐based wind turbines considering wind speed variations

“…However, the generator studied in the paper is based on the DFIG, and the impact of the wind speed variation on the equivalent failure rate is not studied. Adequacy studies of the power system containing renewable energy‐based power plants including wind turbines and photovoltaic farms connected to the large‐scale vanadium redox battery are performed using the analytical approach 14 . In this paper, a multistate reliability model is developed for the wind farm connected to the vanadium redox battery taking into account both the failure of composed components and the variation of the wind speed.…”