电力系统负荷恢复控制协调优化策略  

Harmonious optimal strategies of power system load restoration control

作　　者：方涛[1] 刘俊勇[1] 李宏亮[2] 李杨[1] 李勇[1] 杨旭昕[1] 

机构地区：[1]四川大学电气信息学院,四川成都610065 [2]宁夏电力公司,宁夏银川750001

出　　处：《电力系统保护与控制》2010年第16期18-23,共6页Power System Protection and Control

基　　金：国家重点基础研究发展计划(973项目)(2004CB217905)

摘　　要：就黑启动最后阶段的负荷恢复问题,以全局恢复量最大为目标,计及负荷投载后系统暂态约束,构建了一种新的最优负荷恢复模型。通常依据发电侧调节能力增加一定的出力进行优化分配,缺乏对系统物理特性和运行工况的考虑,所增加量不一定是实际可恢复的最大量。提出在负荷侧求取最大可恢复量,同时将原动机响应特性用于算法初始化,提高寻优效率。所提方法对所有待恢复负荷进行编码,全局搜索,动态校验,能够协调系统暂态约束、可恢复负荷量与位置以及寻优速度三方面的要求,较好地解决了负荷恢复这一'技术—空间—时间'的多维问题。以IEEE-30节点测试系统为算例模型,验证了该方法的有效性。Regarding to the load restoration problem during the last stage of blackout,a new optimal load restoration model is established aiming at the maximum restoration quantity and considering transient constraints after the load pickup.The usual method is to optimize the distribution of a certain amount,which is confirmed by the system generation capability,the issue of system physical characteristic and operation condition are not involved,and the calculation amount may not be the max amount actually.This paper presents a way to obtain max restoration amount at the load side,in addition,turbine governor responsive function is used to initialize arithmetic programs,so the computing efficiency is improved.All the load nodes that need to restore can be coded,searched entirely and tested dynamically by using the proposed method.It also can coordinate the transient constraints,restoration quantity and distribution and computing efficiency,so it preferably solves the ＂technic-space-time＂ three-dimension problem.Simulation results on IEEE-30 test system show the effectiveness of the method.

关 键 词：负荷恢复量 负荷建模 暂态约束 负荷分布 系统工况 

分 类 号：TM714[电气工程—电力系统及自动化]