1.浙江大学电气工程学院,浙江省杭州市 310027
2.深圳供电局有限公司,广东省深圳市 518001
biography:杨鹏程(1993—),男,博士,副教授,主要研究方向:新能源发电、微电网控制、电能质量治理。E-mail:ypc196@zju.edu.cn
biography:冯启帆(1999—),男,通信作者,博士研究生,主要研究方向:分布式光伏发电、配电网电能质量。E-mail:12110032@zju.edu.cn
biography:韦巍(1964—),男,博士,教授,主要研究方向:氢电耦合新能源系统、智能电网、智能控制。E-mail:wwei@zju.edu.cn
收稿:2025-11-04,
修回:2026-01-19,
网络首发:2026-04-08,
纸质出版:2026-12-10
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杨鹏程,冯启帆,韦巍等.基于光伏逆变器本地控制的配电网谐波综合治理[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20251104004.
YANG Pengcheng,FENG Qifan,WEI Wei,et al.Comprehensive Harmonic Mitigation of Distribution Networks Based on Local Control of Photovoltaic Inverters[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20251104004.
杨鹏程,冯启帆,韦巍等.基于光伏逆变器本地控制的配电网谐波综合治理[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20251104004. DOI:
YANG Pengcheng,FENG Qifan,WEI Wei,et al.Comprehensive Harmonic Mitigation of Distribution Networks Based on Local Control of Photovoltaic Inverters[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20251104004. DOI:
现代配电网中谐波污染源的广泛分布造成全网电能质量恶化,使得多变流器协同治理成为研究热点。然而,受限于谐波相量精确感知困难、计算复杂度高、控制实时性要求严苛,且面临控制稳定性和电流越限挑战,现有方法在实际治理中难以达到理想的治理效果。针对上述问题,文中提出了一种基于光伏逆变器本地控制的配电网谐波综合治理方法。结合变流器就地谐波电流补偿控制和谐波虚拟电导控制两种谐波本地控制方法,以全局电压谐波畸变率最小为控制目标,通过治理方案配置、控制指令集中求解、谐波电流指令实时修正,最大化利用光伏逆变器剩余容量进行谐波治理。相较现有方法,所提方法具有更好的治理效果,并能在电网工况变化时综合改善配电网电能质量。
The wide distribution of harmonic pollution sources in modern distribution networks deteriorates the power quality of the entire grid
making coordinated mitigation among multiple converters a research hotspot. However
constrained by the difficulty in accurate sensing of harmonic phasors
high computational complexity
stringent real-time control requirements
as well as challenges in control stability and current over-limit
existing methods can hardly achieve ideal mitigation effects in practical applications. To address the above issues
this paper proposes a comprehensive harmonic mitigation method of distribution networks based on local control of photovoltaic inverters. Combining two local harmonic control strategies
namely the local harmonic current compensation control and harmonic virtual conductance control of converters
the proposed method targets the minimization of global voltage total harmonic distortion. Through mitigation scheme configuration
centralized solution of control commands and real-time correction of harmonic current references
the utilization of the residual capacity of photovoltaic inverters is maximized for harmonic mitigation. Compared with existing methods
the proposed method achieves superior mitigation effects and can comprehensively improve the power quality of distribution networks under varying grid operating conditions.
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