摘要
在模型预测控制框架下建立长期电压稳定控制的滚动优化模型,应用Radau排列法将该动态优化模型直接转化为大型非线性规划问题,并采用可行性恢复算法求解。其基本思想是:当线搜索滤波方法求解该非线性规划问题遇到收敛困难时,转而对原非线性规划问题进行可行性恢复,以试图寻找新的迭代点,并使优化计算由该新迭代点继续进行下去。在IEEE 50机145节点系统上的试验表明,所提方法计算速度快,并对求解困难的问题具有很强的稳定性。
The receding optimization model of long-term voltage stability control is established under framework of model predictive control, the Radau collocation method is used to convert this dynamic optimization model into a large-scale nonlinear programming problem directly, and then this nonlinear programming problem is solved using the feasibility restoration algorithm. The basic idea of this approach is that, when the line search filter method encounters convergent difficulty during solution of the this nonlinear programming problem, the optimization process will be switched to feasibility restoration of original nonlinear programming problem, and try to find a new iteration point so that the optimization computation can continue from this point. The numerical results on IEEE 50-machine 145-bus system demonstrate that the proposed algorithm has fast speed and strong stability in solving difficult optimization problem.
出处
《电工技术学报》
EI
CSCD
北大核心
2012年第9期62-69,共8页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50907023
50777021)
广东省绿色能源技术重点实验室(2008A060301002)
广东省自然科学基金博士启动金资助项目
关键词
长期电压稳定
模型预测控制
滚动优化
Radau排列
可行性恢复算法
Long-term voltage stability, model predictive control, receding optimization, Radaucollocation, feasibility restoration algorithm
