基于分布式一致性的新型配电系统电能质量综合治理研究

胡蓉; 殷雪莉; 徐梦; 张劲松; 乐健

胡蓉,殷雪莉,徐梦,张劲松,乐健.基于分布式一致性的新型配电系统电能质量综合治理研究[J].电测与仪表,2025,62(8):49-61.
HU Rong,YIN Xueli,XU Meng,ZHANG Jingsong,LE Jian.Research on comprehensive power quality management of new distribution network based on distributed consensus[J].Electrical Measurement & Instrumentation,2025,62(8):49-61.

基于分布式一致性的新型配电系统电能质量综合治理研究

Research on comprehensive power quality management of new distribution network based on distributed consensus

DOI：j.issn1001-1390.2025.08.006

中文关键词: 电能质量分布式光伏逆变器领导-跟随模式单步收敛因子新型配电系统

英文关键词:power quality, distributed PV inverter, leader-follower mode, one step convergence factor, new distribution network

基金项目:国家重点研发计划资助项目（2022YFF0610601）

作者中文名	作者英文名	单位
胡蓉	HU Rong	南方电网能源发展研究院有限责任公司
殷雪莉	YIN Xueli	南方电网能源发展研究院有限责任公司
徐梦	XU Meng	南方电网能源发展研究院有限责任公司
张劲松	ZHANG Jingsong	南方电网能源发展研究院有限责任公司
乐健	LE Jian	武汉大学电气与自动化学院

摘要点击次数: 69

中文摘要:

分布式光伏逆变器(distributed PV inverter, DPVI)在完成既定的有功输出任务的同时，具备解决配电网中多种电能质量问题的能力，但往往由于可用补偿容量较小而影响了电能质量治理效果。文中研究了利用多个小容量分布式光伏逆变器协同进行谐波和电压波动治理的方法。首先给出了基于DPVI的配电网电能质量综合治理方案的系统架构，给出了谐波本地治理和节点电压分布式控制相结合的光伏逆变器指令电流生成方法。基于分布式一致性协议设计了领导-跟随模式的节点电压协同控制策略，并证明了所提分布式控制系统的收敛性。其次，建立了新型配电系统分布式控制数学模型，考虑通信时延与不确定参数，分析系统稳定性与鲁棒稳定性，推导了考虑时延的系统稳定性判据与鲁棒稳定性判据。以最小化单步收敛因子为目标设计了领导者选择优化模型。多种场景下的仿真结果表明,文中方法可有效实现多种电能质量问题的综合治理，并证明了考虑时延的稳定性判据与鲁棒稳定性判据的准确性，为提高新型配电系统供电质量提供了技术参考。

英文摘要:

Distributed PV inverter (DPVI) has the ability to solve various power quality problems in the distribution network while completing the predetermined active power generation task. However, the small available compensation capacity often affects the effectiveness of power quality suppression. This paper studies a method for harmonic and voltage fluctuation management using multiple small-capacity DPVIs cooperatively. Firstly, the system architecture of the comprehensive power quality control scheme for distribution networks based on DPVIs is presented, and the DPVI reference current generation method combining local harmonic control and distributed voltage control is proposed. The node voltage collaborative control strategy under leader-follower mode is designed based on distributed consistency protocol, and the convergence of the proposed distributed control system is proved. Secondly, the mathematical model of distributed control for the new distribution network is established. Considering the communication delay and uncertain parameters, the system stability and robust stability are analyzed, and stability criteria as well as robust stability criteria are derived. The leader selection optimization model is established with the goal of minimizing the one step convergence factor. The simulation results in various scenarios indicate that the proposed method can effectively achieve comprehensive management of various power quality issues and validate the accuracy of the stability criteria and robust stability criteria considering delay, providing a technology reference for improving the power supply quality of new distribution systems.

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