Study on Power Balance Control Technology of Microgrid Based on Full-bridge Converter

CAO Bin; WEI Yewen; HU Zihua; SUN Yuxuan; FANG Xuan

doi:10.14044/j.1674-1757.pcrpc.2019.01.027

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Study on Power Balance Control Technology of Microgrid Based on Full-bridge Converter

更新时间：2024-09-14

- Study on Power Balance Control Technology of Microgrid Based on Full-bridge Converter
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 1, Pages: 154-159(2019)
- 作者机构：
  
  三峡大学电气与新能源学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.01.027
  CLC： TM46
- Published：2019，
- 稿件说明：
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[1]曹斌,魏业文,胡紫华,孙宇轩,方烜.基于全桥变流器的微电网功率平衡控制技术的研究[J].电力电容器与无功补偿,2019,40(01):154-159.

CAO BIN, WEI YEWEN, HU ZIHUA, et al. Study on Power Balance Control Technology of Microgrid Based on Full-bridge Converter. [J]. Power capacitor & reactive power compensation, 2019, 40(1): 154-159.
[1]曹斌,魏业文,胡紫华,孙宇轩,方烜.基于全桥变流器的微电网功率平衡控制技术的研究[J].电力电容器与无功补偿,2019,40(01):154-159. DOI： 10.14044/j.1674-1757.pcrpc.2019.01.027.

CAO BIN, WEI YEWEN, HU ZIHUA, et al. Study on Power Balance Control Technology of Microgrid Based on Full-bridge Converter. [J]. Power capacitor & reactive power compensation, 2019, 40(1): 154-159. DOI： 10.14044/j.1674-1757.pcrpc.2019.01.027.

摘要

独立微电网在海岛、偏远地区等应用逐渐广泛。然而

功率不平衡时常导致其电压与频率的波动

从而抑制了交流微电网的发展。针对此问题

文中提出一种基于全桥变流器的储能优化电路结构

以实现微电网功率平衡及其功率优化。该结构具有结构简单

控制简单

功率调节灵活的特点。全文首先对该工作结构、数学模型进行分析

建立了功率模型。其次

从电容的充放电和逆变的角度

分析全桥结构的有功和无功的功率控制技术

并采用一种多模式功率协调控制策略

对目标功率进行调节优化

降低直流侧电容电压

减少谐波含量。最后

通过仿真验证了该结构和控制策略的可行性。综上所述

该课题对未来交流微电网推广及其应用具有十分重要的意义。

Abstract

Independent microgrid is widely used in islands and remote areas.However

power imbalance often leads to the fluctuation of voltage and frequency

which suppress the development of AC microgrid.In view of this problem

a kind of energy storage optimization circuit structure based on full-bridge converter is proposed so to achieve the power balance and its power optimization of the micro grid.The structure has such features as simple structure and control as well as flexible power adjustment.In this paper

the working structure and mathematical model are analyzed firstly and the power model is established.Secondly

the control technology of active and reactive power of the full bridge structure is analyzed from the point of view of charge/discharge and inverter of capacitance.A kind of multi-mode power coordinated control strategy is adopted to adjust and optimize the target power

reduce the capacitive voltage at DC side and reduce the harmonic contents.Finally

the feasibility of the structure and control strategy is verified by simulation.To sum up

this topic is of great significance to the future promotion and application of AC microgrid.

关键词

全桥变流器功率平衡多模式功率协调电流谐波电容电压

Keywords

full-bridge converterpower balancemulti-mode power coordinationcurrent harmonicscapacitive voltage

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