交直流系统的动态无功优化  

Dynamic Reactive Power Optimization of AC/DC System

作　　者：颜伟[1] 张海兵[1] 田甜 王圣江[3] 程彬[4] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆市400030 [2]重庆电力设计院,重庆市400030 [3]云南电网调度中心,云南省昆明市650011 [4]77206部队,云南省昆明市650011

出　　处：《电力系统自动化》2009年第10期43-46,共4页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50577073)~~

摘　　要：考虑直流输电系统对功率与电压的调节能力,建立了交直流系统的动态无功优化模型。模型的目标函数为交直流电网的全天网损最小,约束包括交直流系统的潮流约束、所有直流变量的控制约束、离散控制变量动态调节次数约束及节点电压的安全约束。模型求解是一个多时段非线性混合整数规划问题。以混合算法为基础,提出了交直流系统的动态无功优化混合智能算法。以PSASP 36节点系统为例,通过仿真计算验证了所建模型和算法的有效性,说明了动态无功优化在交直流输电网络中具有更大的降损潜力。Considering the regulating capacity of DC power transmission system to power and voltage, a new model of dynamic reactive power optimization of AC/DC system is proposed. The objective of the model is to minimize all-day network loss of the AC/DC system. Various constraints are taken into account, including power-flow constraints, DC variables constraints in control equations, dynamic constraints of discrete control variables, and security constraints of voltages. It is a multi-period nonlinear mixed integer program problem. Based on the hybrid algorithm, a hybrid intelligent algorithm for dynamic reactive power optimization of AC/DC system is proposed. Test results of modified PSASP 36-bus system demonstrate the efficiency of the proposed model and algorithm, and show that dynamic reactive power optimization has potential in the loss reduction of an AC/DC power transmission grid.

关 键 词：动态无功优化 交直流输电系统 混合智能算法 功率协调 

分 类 号：TM714[电气工程—电力系统及自动化]