基于GPRS的配电网动态无功优化控制策略研究  

GPRS-based research in control strategy for distribution network reactive power optimization

作　　者：陈蒙伟[1] 章坚民[1,2] 徐谦 吴鑫淼[1] 叶义[1] 

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310018 [2]浙江创维自动化工程有限公司,浙江杭州310012 [3]浙江省电力经济技术研究院,浙江杭州310007

出　　处：《机电工程》2013年第2期228-231,239,共5页Journal of Mechanical & Electrical Engineering

摘　　要：配电网无功优化控制是解决配电网电能损耗大、电压水平低这一问题的有效手段,采用动态无功优化求解时一般按照各节点全天短期预测负荷曲线合理分段优化,即将动态无功优化控制转化为多时段静态无功优化问题。针对现有配电网实际负荷的不规则变化会给该优化方法带来无功过补偿和欠补偿的问题,提出了一种基于实测负荷数据和预测负荷数据的动态无功优化混合控制策略;为了提高配电网无功优化的计算速度,使优化算法更好地适用于实际在线环境,引入了序优化理论框架,采用了改进的禁忌搜索算法作为无功优化算法;通过对34节点配电系统进行了算例分析。研究结果表明,该控制策略和优化算法在实用性、可行性和计算速度等方面均有良好表现。Reactive power control in distribution system is an important and effective method to make the power loss less and voltage condition better. Dynamic reactive power optimization solution generally is taken reasonable section optimization in accordance with the day short-term forecast load curve, that is the dynamic reactive power optimization is transformed into the multi-period static reactive power optimization problems. Aiming at the actual load＇s irregular change resulting in reactive power over compensation and owe compensation problem on the distribution network, a kind of the dynamic reactive power optimization of hybrid control strategy was proposed based on the real-time measured data and the prediction data. Secondly, in order to improve the distribution network reactive power optimization calculation speed, make optimization algorithm better applicable to the actual on-line environment, ordinal optimization theory framework was introduced, improved tabu search algorithm was taken as reactive power optimization. Through 3g-node distribution system study, the results indicate that the proposed control strategy is practicable feasible and its calculation speed is fast.

关 键 词：配电网 动态无功优化 动作次数限制 GPRS 控制策略 

分 类 号：TM761.1[电气工程—电力系统及自动化]