摘要
针对提高长期电压稳定性的问题,对最优协调电压控制和二次电压控制进行比较研究。根据准稳态假设建立含连续-离散时间微分-代数方程约束的最优协调电压控制模型,该动态优化模型综合考虑长期电压稳定性和控制成本因素,可以协调不同种类和位置的控制,基于Pontryagin极大值原理和Radau排列法构造间接法算法求解,此外引入罚函数处理有载调压变压器变比等离散控制。在新英格兰39节点系统上的比较试验表明了最优协调电压控制具有更优良的控制特性。
In view of improving long-term voltage stability, optimal coordinated voltage control and secondary voltage control are comparatively studied. Optimal coordinated voltage control model including continuous-discrete time differential-algebraic equation constraint is built. The model comprehensively considers long-term voltage stability and cost for control, it can coordinates control of different types and locations, and formulates indirect algorithm on the base of Pontryagin maximum principle and Radau ranking method. Besides, it introduces penalty function to handle such discrete control as transformation ratio of on-load tap changing transformer. Comparative test on New England 39-bus system shows superiority of optimal coordinated voltage control （OCVC） in control performance.
出处
《广东电力》
2011年第9期8-14,共7页
Guangdong Electric Power
基金
国家自然科学基金项目(50907023
50777021)
广东省绿色能源技术重点实验室资助项目(2008A060301002)
广东省自然科学基金博士启动项目
关键词
长期电压稳定
最优协调电压控制
准稳态假设
动态优化
间接法
二次电压控制
long-term voltage stability
OCVC
quasi-steady-state hypothesis
dynamic optimization
indirect method
secondary voltage control
