Novel Stored Energy Techniques for Spinning Reserve

Abstract

Ensuring security and quality of supply on small ’island’ pover systems is costly and difficult. Consequently, there is an ever-present motivation to maintain and improve plant response to losses of generation infeed. This paper reports work which enhances conventional thermal plant’s reserve capability to improve system performance and cost.Novel strategies of extracting reserve are proposed based on reducing the boiler drum level, steam temperatures and impedance to steam flow. Operational experimentation on these strategies is presented and it is seen that worthwhile gains are achievable in practice.