Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于目标级联分析法的多区域电力系统分散优化调度

来源:电工电气发布时间:2020-11-19 15:19 浏览次数:7
基于目标级联分析法的多区域电力系统分散优化调度
 
夏云睿1,朱建全1,2
(1 华南理工大学 电力学院,广东 广州 510640;2 电力系统及大型发电设备安全控制和仿真国家重点实验室,北京 100084)
 
    摘 要:针对多区域互联电力系统的经济调度问题,研究了一种基于目标级联分析法的分散优化求解方法。根据区域解耦原理,以直流潮流模型下的电压相角作为耦合变量,将多区域经济调度的集中优化模型解耦为分散优化模型。利用增广拉格朗日函数对各个区域的调度子问题进行分散优化,并根据耦合变量引入上层协调器,对各个区域的优化结果进行协调,具有较快的收敛速度和较高的计算精度。通过2 区域6 节点系统和数个IEEE 多区域系统的算例分析,从多个角度验证了算法的有效性。
    关键词:电力经济调度;区域解耦;分散优化;目标级联分析法
    中图分类号:TM711     文献标识码:A     文章编号:1007-3175(2020)11-0010-06
 
Decentralized Optimal Dispatch of Multi-Area Power Systems Based on Analytical Target Cascading
 
XIA Yun-rui1, ZHU Jian-quan1,2
(1 School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China;
2 State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Beijing 100084, China)
 
    Abstract: A decentralized optimization strategy based on the analytical target cascading is studied to solve the economic dispatch problem of multi-area interconnected power system. According to the principle of area decoupling, the voltage phase angle of the DC power flow model is selected as the coupling variables. The centralized optimization model of multi-area economic dispatch is transformed into the decentralized ones. Then, each is solved by the augmented Lagrange function with fast convergence and high accuracy. To coordinate the optimization results of each area, an upper level coordinator is introduced based on the coupling variables. Case studies on a 2-area and 6-bus system, as well as IEEE multi-area systems demonstrate the effectiveness of the algorithm.
    Key words: electrical economic dispatch; area decoupling; decentralized optimization; analytical target cascading
 
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