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期刊号: CN32-1800/TM| ISSN1007-3175

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基于LBC的改进型直流配电网下垂控制策略

来源:电工电气发布时间:2025-04-03 13:03浏览次数:7

基于LBC的改进型直流配电网下垂控制策略

孙希盈,夏杰,张宏滨,宋柯,申鹏飞,张明岗
(国网山东省电力公司潍坊供电公司,山东 潍坊 262500)
 
    摘 要:电压下垂控制作为一种完全的分布式控制策略,被应用到直流配电网中。为降低集中控制中实时高频通信对系统可靠性的影响,又兼顾分布式控制的灵活性,提出一种基于低带宽通信(LBC)的改进下垂控制策略,通过 LBC 网络,引入平均电压控制器和平均电流控制器,对传统的下垂控制进行改进。在 MATLAB/Simulink 软件中建立直流配电网模型进行验证,结果证明所提控制方法能够满足低压直流配电网对分布式电源接入的要求,是一种有效的协调控制策略。
    关键词: 直流配电网;低带宽通信;电压稳定;电流分配;下垂控制
    中图分类号:TM732     文献标识码:A     文章编号:1007-3175(2025)03-0016-05
 
Improved DC Distribution Network Droop Control Strategy Based on LBC
 
SUN Xi-ying, XIA Jie, ZHANG Hong-bin, SONG Ke, SHEN Peng-fei, ZHANG Ming-gang
(Weifang Power Supply Company of State Grid Shandong Electric Power Company, Weifang 262500, China)
 
    Abstract: Voltage droop control is applied to DC distribution networks as a fully distributed control strategy. In order to reduce the impact of real-time high-frequency communication on system reliability in centralized control, while taking into account the flexibility of distributed control, an improved droop control strategy based on low-bandwidth communication (LBC) is proposed to improve the traditional droop control by introducing an average voltage controller and an average current controller through the LBC network. A DC distribution network model is established in MATLAB/Simulink software for validation, and the results prove that the proposed control method can meet the requirements of low-voltage DC distribution network for distributed power access, and is an effective coordinated control strategy.
    Key words: DC distribution network; low-bandwidth communication; voltage stability; current distribution; droop control
 
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