【作者】 赵金利； 余贻鑫； 樊季超； 贾宏杰；

【Author】 Jinli Zhao Yixin Yu Fan Jchao Hongjie Jia (Tianjin University,Tianjin 300072,China)

【机构】 天津大学电气与自动化工程学院；

【摘要】 通过对大量仿真所得到的电力系统静态电压稳定性的临界点集的观察,发现它可用割集功率空间上的超平面足够近似地描述。本文在此基础上,建立了求解可满足静态电压稳定性约束的割集功率传输极限(即 ATC,Available Transmission Capacity)的线性优化模型和发电经济调度线性优化模型。所提供的方法简单、实用,且可满足工程精度要求,从而避免了采用连续潮流和优化潮流等方法计算量大的问题。不仅可在线计算 ATC,还可为运行人员提供有价值的附加信息。上述方法的有效性己为华中电力系统的实际计算所证实。更多还原

【Abstract】 Based on observation and study of considerable simulations of bulk power system static voltage stability limits,it’ s found that a hyper plane can describe the critical point in critical cut-set space for a given system configuration with perfect accuracy.Using this hyper plane linear optimization models are established for calculating maximal transmission limit of cut-set(i.e.ATC,Available Transmission Capacity)and generation dispatching in this paper,by which it can be very easy and fast to evaluate ATC level accurately so that the need of enormous calculation of power flow by Continuous Power Flow(CPF)and Optimal Power Flow(OPF)method can be avoided.The method proposed in this paper can be used in system monitoring and controlling online providing system operators with helpful information.An example of ATC calculation of Central-China Power System(1378 buses)is given to validated the method.更多还原