Abstract
This work reviews and analyzes the feasibility of frequency support by Battery Energy Storage System (BESS). If power generation and load demand are unbalanced, it would cause serious problems on frequency stability. BESS is an effective method to balance power generation and load demand since it has fast response characteristics. This work analyzes the concept of frequency support by BESS, including the design of BESS and the battery characteristics for frequency support. Various battery energy storage technologies for frequency support are compared and analyzed. In addition, the cost analysis using the BESS frequency support service are reviewed, and the international experiences concerning about the BESS participating in UK Firm Frequency Response (FFR) and Australia Frequency Control Ancillary Services (FCAS) markets are introduced, which provides power system operators important references.
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