Study on Low Voltage-ride-through Control Strategy of Photovoltaic Inverter

JI Zhutong

doi:10.14044/j.1674-1757.pcrpc.2017.05.033

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Study on Low Voltage-ride-through Control Strategy of Photovoltaic Inverter

更新时间：2024-09-14

- Study on Low Voltage-ride-through Control Strategy of Photovoltaic Inverter
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 5, Pages: 176-180(2017)
- 作者机构：
  
  1. 山东诚海电子科技有限公司 3. 山东蓝天电能科技有限公司
  2. 浙江大学工程师学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.05.033
  CLC： TM464;TM615
- Published：2017，
- 稿件说明：
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[1]纪竹童,周娜娜,赵品,封海东.光伏逆变器低电压穿越控制策略研究[J].电力电容器与无功补偿,2017,38(05):176-180.

JI ZHUTONG. Study on Low Voltage-ride-through Control Strategy of Photovoltaic Inverter. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 176-180.
[1]纪竹童,周娜娜,赵品,封海东.光伏逆变器低电压穿越控制策略研究[J].电力电容器与无功补偿,2017,38(05):176-180. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.033.

JI ZHUTONG. Study on Low Voltage-ride-through Control Strategy of Photovoltaic Inverter. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 176-180. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.033.

摘要

针对光伏逆变器在电网低电压穿越时会出现过压、过流的问题

提出了一种基于光储协调控制的策略。在低电压时间内

光伏逆变器采用最大功率跟踪控制

利用储能系统吸收多余的有功来解决装置过压的问题;对输出电流采取协调分配控制

不仅解决了过流问题

而且还可向系统提供一定的无功功率以便于系统电压恢复。

Abstract

As for the issue of overvoltage and overcurrent of PV inverter in the ride-through in the low vol-tage grid

a kind of strategy based on photovoltaic-energy storage hybrid System. During the low voltagetime

the PV inverter adopts maximum power for the tracking and control

uses the energy system to absorbexcessive active power to solve the overvoltage problem of the device. Coordination distribution control isadopted for the current output so to not only solve the problem of overcurrent

but also to provide a definitereactive power to the system for the recovery of system voltage.

关键词

光伏逆变器低电压穿越DC-DC变换器电流直接控制

Keywords

photovoltaic inverterlow voltage ride-throughDC/DC converterdirect control of current

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