摘要
基于非线性模型预测控制理论,文中提出包含风电场的紧急电压控制器设计方法.以系统的准稳态近似模型为基础,建立滚动动态优化模型,将其滚动优化问题描述成一个具有连续-离散时间微分-代数方程组的最优控制问题,其优化目标是负荷节点电压偏差和控制成本最小.采用Radau排列法将滚动动态优化模型转化为非线性规划问题,并借助建模软件AMPL调用优化解法器IPOPT求解.改造后的新英格兰10机39节点系统的仿真结果验证了所提方法的有效性.
In this paper,the design method of an emergency voltage controller for the power systems containing wind farms is presented based on the nonlinear model-predictive control theory.In this method,a receding dynamic optimization model is proposed based on the quasi-steady-state approximate models of power systems.Then,the proposed model is described as an optimal control problem with continuous and discrete time differential-algebraic equations,with the purpose to achieve voltage deviation and control cost minimization.Moreover,Radau collocation method is used to convert the proposed model into a nonlinear programming problem which can be solved by using the optimization solver IPOPT through the modeling software AMPL.Finally,the effectiveness of the proposed method is verified on the modified New England 10-machine 39-bus system.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第10期132-138,共7页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50777021
50907023)
广东省自然科学基金博士启动项目(9451064101003157)
关键词
风电场
长期电压稳定
模型预测控制
Radau配置法
非线性规划
wind farm
long-term voltage stability
model predictive control
Radau collocation method
nonlinear programming
