电力系统保护与控制Issue(5)：104-109,6.
基于单机负荷模型系统的紧急状态研究
Study on system emergency state based on single generator load model
摘要
Abstract
The classification of system running state is determined and the transformational relation among them is studied. State equations are constructed about simple single generator-load model system. Steady state and the state of emergency running are focused. The occurrence of a large disturbance in a power system can arouse active and reactive power imbalances. System frequency and voltage trajectory are simulated and analyzed with Matlab. The results show that the frequency is an indicator of real power balance and reactive power imbalance determines the change of bus voltage. Frequency and voltage stability cannot be decoupled completely under emergency situations. This conclusion has an important guiding significance for the design and improvement of traditional under frequency load shedding (UFLS) strategy.关键词
运行状态/有功功率平衡/频率稳定/电压稳定/切负荷/紧急控制Key words
operating state/active power balance/frequency stability/voltage stability/load shedding/emergency control分类
信息技术与安全科学引用本文复制引用
张执超,王增平,方攀宇..基于单机负荷模型系统的紧急状态研究[J].电力系统保护与控制,2014,(5):104-109,6.基金项目
国家自然科学基金重点项目(50837002)；国家重点基础研究发展计划项目(973项目)(2012CB215200)This work is supported by National Natural Science Foundation of China (No.50837002) and National Basic Research Program of China (973 Program)(No.2012CB215200) （50837002）
