基于最优变目标策略的励磁系统与SVC协调控制Coordination Control between Generator Excitation and SVC Based on Optimal Variable Aim Strategy
邹强;李兴源;
摘要(Abstract):
发电机励磁系统以及静止无功补偿器(SVC)对远距离输电系统的稳定性有很大影响。文章基于单机无穷大系统的非线性模型,建立了包括状态变量发电机机端电压在内的状态空间方程,提出了一种最优变目标控制(OVAC)策略,根据励磁系统和SVC不同的控制目标分别采用不同的控制策略,从而协调控制这两种控制器。仿真结果表明,该策略能够有效提高故障时发电机的无功出力,并能提高系统阻尼,抑制振荡,同时改善系统的功角和电压稳定性。
关键词(KeyWords): 电力系统;励磁系统;电压稳定;静止无功补偿器(SVC);最优变目标控制
基金项目(Foundation): 国家重点基础研究发展计划项目(973项目)(2004CB217907) 国家自然科学基金资助项目(50595412)。~~
作者(Author): 邹强;李兴源;
Email:
DOI: 10.13335/j.1000-3673.pst.2006.10.005
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