Abstract：According to quasi-steady-state model, the coordinated voltage control problem is represented by an optimization model subjected to differential-algebraic equations(DAEs) with continuous-discrete time variables. A direct dynamic optimization approach is employed to obtain the solution of the DAEs optimization problem. The dynamic optimization problem can be converted to a nonlinear programming by approximating state variable, algebraic variable and control variable profiles by a family of polynomials on finite time intervals using Radau collocation method. An enhanced primal-dual interior point strategy is applied to solve this nonlinear programming model. Line search filter method is proposed in the context of the interior point method to solve the nonlinear programming model. Line search filter based interior point method has better convergence properties and can give the optimal solution quickly. The simulation results on IEEE 17-machine 162-bus system show that the proposed approach can determine effective control to enhance long-term voltage stability of power systems.
郑文杰, 刘明波. 应用线搜索滤波器内点法求解最优协调电压控制问题[J]. 电工技术学报, 2012, 27(9): 70-77.
Zheng Wenjie, Liu Mingbo. Solution of Optimal Coordinated Voltage Control Using Line Search Filter Interior Point Method. Transactions of China Electrotechnical Society, 2012, 27(9): 70-77.
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