一种多功能光伏并网逆变器控制方法

肖华根; 罗元卿

doi:doi:10.19912/j.0254-0096.tynxb.2024-2033

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一种多功能光伏并网逆变器控制方法

更新时间：2026-04-08

- 一种多功能光伏并网逆变器控制方法
- Vol. 47, Issue 3, Pages: 739-746(2026)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-2033
  CLC： TM464
- Online First：07 April 2026，
  
  Published：2026
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肖华根, 罗元卿. 一种多功能光伏并网逆变器控制方法[J]. 2026, 47(3): 739-746.
DOI：

肖华根, 罗元卿. 一种多功能光伏并网逆变器控制方法[J]. 2026, 47(3): 739-746. DOI： doi:10.19912/j.0254-0096.tynxb.2024-2033.

摘要

为解决分布式光伏并网逆变器利用率低、配电网末端电能质量治理成本高的问题

提出一种用于三相四线制多功能光伏并网逆变器的控制方法。通过分析配电网末端对光伏发电、无功补偿、谐波治理和三相不平衡补偿的需求迫切性及原理

建立光伏发电功能与各种电能质量治理功能的优先级

提出多功能光伏并网逆变器目标电流分配方法

使光伏并网逆变器根据电能质量补偿优先级输出相应电流。仿真实验表明

该方法既能保证光伏电能的有效利用

又能充分利用逆变器剩余容量治理电能质量

特别是能有效抑制零序电流。

Abstract

In order to solve the problems of low utilization rate of distributed photovoltaic grid-connected inverters and high cost of power quality control at the end of the distribution network

a control method for a three-phase four-wire multi-functional photovoltaic grid-connected inverter was proposed. By analyzing the urgency of the demand for photovoltaic power generation

reactive power compensation

harmonic control and three-phase imbalance compensation at the end of the distribution network

the priority of photovoltaic power generation function and various power quality control functions is established

and the target current distribution method of multi-functional photovoltaic grid-connected inverter is proposed

so that the photovoltaic grid-connected inverter can output corresponding currents according to the priority of the power quality compensation for the distribution network. The simulation results show that this method can not only ensure the effective utilization of photovoltaic power

but also make full use of the residual capacity of the inverter to control power quality

improve the utilization efficiency of photovoltaic grid-connected inverters and reduce the cost of power quality control in distribution network.

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Keywords

references

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