电力系统紧急状态下的分负荷方案搜索方法

The Search Method of Load Division Program under the Power System Emergency State

摘要: 国务院《电力安全事故应急处置和调查处理条例》的实施，要求在保证电网安全的前提下减少负荷的损失，通过研究分负荷来解决一些对控制时间要求不高的电力系统紧急状态，从而减少切负荷量，甚至不需要切负荷。根据分负荷能解决的紧急状态对控制时间要求不高这个特性，提出紧急状态下的分负荷的启动判据。基于灵敏度分析法，提出了分负荷方案搜索方法。通过实际电网算例分析，得到的分负荷方案能解决紧急状态，从而减少负荷的损失。

Abstract: The “Ordinances of Electrical Security Accident Emergency Disposal and Investigation” published by State Council had required to reduce load loss on the premise of ensuring the safety of power grid. The study of load division can solve the problem of some emergencies which have low demand of time control and decrease the load loss amount. According to the characteristic of load division which has low demand of time control, this article designs the start-up criterion under the emergency state and designs the search method of load division program which based on the sensitivity scheme. The rationality and effectiveness of the search method of load division program are verified by a practical example.