基于多目标最优控制原理的暂态电压安全紧急控制研究

项目名称： 基于多目标最优控制原理的暂态电压安全紧急控制研究

项目编号： No.51277078

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 刘明波

作者单位： 华南理工大学

项目金额： 78万元

中文摘要： 当电力系统发生故障处于暂态电压安全紧急状态时，可以通过协调各种动态元件的控制动作，如改变发电机自动电压调节器和静止同步补偿器 (或静止无功补偿器)的电压设定值，投切电容器/电抗器组，甚至切除部分负荷，以维持系统的暂态电压安全。本项目将暂态电压安全紧急控制问题描述为包含连续控制和离散控制的多目标最优控制模型，将连续的标量多目标优化方法和混合整数最优控制方法结合起来求解这个多目标动态优化模型，从而获得帕累托最优解集。应用法线边界交叉法和规格化法平面约束法将包含连续控制和离散控制的多目标动态优化问题转换为一系列参数化的单目标混合整数最优控制问题；借助凸松弛技术、直接多重打靶法、简化空间技术、求和取整策略和切换时间优化技术，构建求解单目标混合整数最优控制问题的多项式时间算法。利用多目标优化和直接多重打靶求解过程中呈现的并行特征，构建整个算法的并行计算框架，以提高计算效率。

中文关键词： 暂态电压安全；最优协调控制；分散控制；动态无功源最优配置；多目标混合整数动态优化

英文摘要： When a power system enters a transient voltage security emergency status after following a disturbance, all kinds of control actions of dynamic components can be coordinated to maintain its transient voltage security, such as adjusting the voltage settings of automatic voltage regulators of generators and static synchronous compensators (or static VAr compensators), switching capacitor/reactor banks, and even shedding some loads. This transient voltage security emergency control problem can be expressed as a multi-objective optimal control model including both continuous controls and discrete controls. Therefore, the continuous scalar multi-objective optimization method and mixed-integer optimal control method are combined to solving this multiple objective dynamic optimization problem, and the Pareto optimal solution set can be obtained. This original multiple objective dynamic optimization problem can be converted into a series of parametric single objective mixed-integer optimal control problems through the normal boundary intersection method and normalized normal constraint method. By means of convex relaxation technology,direct multiple shooting method,reduced space technology,sum up rounding strategy, switching time optimization technology,the polynomial time algorithm for solving these single objective m

英文关键词： Transient voltage security；optimal coordinated control；decentralized control；optimal allocation of dynamic var sources；multi-objective mixed-integer dynamic optimization