电工技术学报
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面向配电台区经济性及综合承载力提升的旋转潮流控制器双层规划模型
颜湘武1, 卢俊达1, 贾焦心1, 吴鸣2, 牛耕2
1.河北省分布式储能与微网重点实验室(华北电力大学) 保定 071003;
2.国网上海能源互联网研究院有限公司 上海 201210
A Bi-Level Programming Model of Rotary Power Flow Controller for Improving the Economy and Comprehensive Carrying Capacity of Distribution Station Area
Yan Xiangwu1, Lu Junda1, Jia Jiaoxin1, Wu Ming2, Niu Geng2
1. Hebei Provincial Key Laboratory of Distributed Energy Storage and Microgrid North China Electric Power University Baoding 071003 China;
2. State Grid Shanghai Energy Internet Research Institute Co. Shanghai 201210 China
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摘要 

新能源高比例接入导致配电台区出现网架结构薄弱、局部负荷分配不均等承载力不足问题,通过台区柔性互联可解决上述问题,但电力电子式互联装置过高的投资及运维成本限制了其广泛应用,为此,该文提出一种面向配电台区经济性及综合承载力提升的旋转潮流控制器(RPFC)双层规划模型。首先,建立RPFC的稳态潮流模型,提出含RPFC的配电台区柔性互联结构;其次,构建含RPFC的配电台区双层规划模型,上层为RPFC选址定容层,以配电台区总投资成本最小为目标确定RPFC最优容量与位置,下层为运行优化层,构建考虑安全性、经济性、灵活性的综合承载力指标体系,并以综合承载力最高为目标优化RPFC运行功率;然后,为提高寻优速度和精度,提出一种改进引力场结合二阶锥规划的混合优化算法求解该双层规划模型;最后,将所提模型与其他规划模型进行对比,结果表明所提模型在降低配电台区总投资成本的同时提高了配电台区综合承载力。

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颜湘武
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关键词 配电台区综合承载力旋转潮流控制器改进引力场算法双层规划    
Abstract

As a vital component of the power system, the power supply capacity within distribution station areas exerts a direct influence on urban economic development and the enhancement of residents' living standards. With the escalating integration of renewable energy sources, electric vehicles, and diversified load connections, these areas are confronted with significant challenges, including weak grid structures, uneven local load distribution, and inadequate carrying capacities. While the power electronic flexible interconnection device offers a potential solution to these issues, its high investment and operational costs hinder widespread adoption. In contrast, the Rotary Power Flow Controller (RPFC), an electromagnetic device, presents advantages such as cost-effectiveness and resilience to impacts. By enabling spatial regulation of line power flow, the RPFC can effectively bolster the bearing capacity of distribution areas, thereby enhancing their overall carrying capacity.
Firstly, the steady-state power flow model of the RPFC is established. The RPFC is a flexible interconnection device that regulates power flow based on the rotary phase shifting transformer (RPST) principle. Adjusting both the amplitude and phase of the series voltage allows for precise control of power flow along the line. Based on this, a flexible interconnection structure of the distribution station area containing RPFC is proposed.
Secondly, a bi-level programming framework for RPFC is proposed for improving the economy and comprehensive carrying capacity of the distribution station area, which includes the RPFC site selection and capacity determination layer and the operation optimization layer. The upper layer is the RPFC site selection and capacity determination layer. This layer obtains typical scenarios based on the scenario reduction method of Kantorovich distance. The optimization goal is to minimize the total investment cost of the distribution station area. At the same time, under the condition of satisfying the RPFC power constraint and capacity constraint, the current optimal location and capacity of RPFC are generated, and then the RPFC determination scheme is passed to the lower layer. The lower layer is the operation optimization layer. The optimization goal is to maximize the comprehensive carrying capacity of the distribution station area. Based on the upper layer configuration scheme, this layer solves the optimal operating power of RPFC under each scenario, and then feeds back the optimization results such as RPFC transmission power and branch power flow to the upper layer. The layers optimize each other to obtain the optimal configuration planning and operation optimization scheme.
Then, a bi-level programming model of the distribution station area containing RPFC is constructed based on the proposed bi-level programming framework. To improve the optimization speed and accuracy, an improved gravitational field algorithm is proposed, combined with second-order cone planning to form a hybrid optimization algorithm to solve the proposed bi-level programming model.
Finally, the proposed model and algorithm are validated through simulation examples. The simulation results indicate that the proposed IQGA-SOCP hybrid optimization algorithm enhances global search capability while reducing the difficulty of solving multi-layer models, thereby optimizing the overall model-solving process and reducing solution time. This verifies the correctness and effectiveness of the proposed model and solution algorithm.

Key wordsDistribution station area    comprehensive carrying capacity    rotary power flow controller    improved gravitation field algorithm    bi-level programming   
收稿日期: 2024-10-16     
PACS: TM732  
基金资助:

国家电网有限公司总部科技项目(5108-202218280A-2-227-XG)资助

通讯作者: 卢俊达, 男,1998年生,博士研究生,研究方向为新能源发电与智能微电网,配电网优化调度等。E-mail:lujd777@163.com   
作者简介: 颜湘武, 男,1965年生,教授,博士生导师,研究方向为新能源电力系分析与控制、现代电力与变换、新型储能与节能等。E-mail:xiangwuy@ncepu.edu.cn
引用本文:   
颜湘武, 卢俊达, 贾焦心, 吴鸣, 牛耕. 面向配电台区经济性及综合承载力提升的旋转潮流控制器双层规划模型[J]. 电工技术学报, 0, (): 1059-5. Yan Xiangwu, Lu Junda, Jia Jiaoxin, Wu Ming, Niu Geng. A Bi-Level Programming Model of Rotary Power Flow Controller for Improving the Economy and Comprehensive Carrying Capacity of Distribution Station Area. Transactions of China Electrotechnical Society, 0, (): 1059-5.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L11059          https://dgjsxb.ces-transaction.com/CN/Y0/V/I/1059