Economic dispatch and spinning reserve scheduling for generation transmission systems

Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521) Pub Date : 2004-05-12 DOI:10.1109/MELCON.2004.1348085

C. Su, Chi-Min Lin, Yung-Fu Wang

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引用次数: 7

Abstract

This paper presents a method of how to optimize and dispatch the spinning reserve and unit generation for system reliability and economic efficiency under a specified demand and total value of spinning reserve in a composite power system. Spinning reserve is one of important ancillary services to maintain system reliability in case of contingency. This paper employs the DC power flow and determines generation shift factor so that power generation can be redispatched economically and lines transmission congestion can be alleviated effectively. The linear programming method is used to find the optimal unit generations and spinning reserve, with an objective of minimizing the generation cost while satisfying some operation constraints. Various constraints consisting of power balance and spinning reserve demand, ramp rate limits and transmission capacities limits are considered. The proposed method can be further applied to the operation of deregulated power systems in which spinning reserve is served as an important auxiliary service to help system operate stably and reliably.

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发电系统经济调度与旋转备用调度

本文提出了在一定的旋转备用需求和总量下，如何对复合电力系统的旋转备用和机组发电进行优化调度，以保证系统的可靠性和经济性。旋转备用是应急情况下维持系统可靠性的重要辅助服务之一。本文采用直流潮流，确定发电偏移系数，使发电能够经济地重新调度，有效地缓解线路传输拥塞。采用线性规划方法，在满足一定运行约束的前提下，以发电成本最小为目标，找到最优机组代和旋转备用。考虑了电力平衡和自旋备用需求、斜坡速率限制和输电容量限制等约束条件。该方法可进一步应用于解除管制电力系统的运行中，其中自旋储备作为一项重要的辅助服务，帮助系统稳定可靠地运行。

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Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)

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