Research on Microgrid Control System with Different DG Types

Litao Wang; Weihua Tian; Baixiang Zheng

doi:10.3969/j.issn.1000-0801.2013.12.011

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Research on Microgrid Control System with Different DG Types

research and development | 更新时间：2024-06-05

- Research on Microgrid Control System with Different DG Types
- Telecommunications Science Vol. 29, Issue 12, Pages: 65-71(2013)
- 作者机构：
- 作者简介：
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- DOI：10.3969/j.issn.1000-0801.2013.12.011
  CLC：
- Published Online：2013-12，
  
  Published：20 December 2013
- 稿件说明：
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Litao Wang, Weihua Tian, Baixiang Zheng. Research on Microgrid Control System with Different DG Types[J]. Telecommunications science, 2013, 29(12): 65-71.
DOI：

Litao Wang, Weihua Tian, Baixiang Zheng. Research on Microgrid Control System with Different DG Types[J]. Telecommunications science, 2013, 29(12): 65-71. DOI： 10.3969/j.issn.1000-0801.2013.12.011.

摘要

针对微网的并网与离网运行方式以及两种运行方式之间的转换，提出一种含多种新能源分布式电源的微网控制策略，建立控制系统。采用直流与交流微电网混合方式对交流负荷供电，在交流侧，采用独立的公共DC/AC变换，连接到一条微网母线上。针对微网的并网运行模式，建立P/Q控制模型，离网运行模式采用V/f控制方法。采用风力发电、光伏发电、蓄电池储能3种微源作为组网单元，对3种微源进行并/离网切换及负荷切断/闭合运行控制，建立微电网系统仿真，初步验证系统可行性。

Abstract

According to the grid-connected and islanded operating modes of microgrid and the changeover between them

a control strategy of microgrid with different kinds of DG（distributed generation）was proposed

which monitors the operating states of both microgrid and power network and provides the unified coordinating control by the central controller of microgrid. DC micro-grid and AC micro-grid hybrid was adopted. An independent public DC/AC converter used in AC side. Not only the load demand was satisfied

but also the converter resources were saved. P/Q control model was established based on grid-connected model. And in isolated mode

the converter was working in V/f control. The direct-drive permanent magnet wind power generation system

dual-stage PV generation system and Li-ion battery energy storage system were used as networking unit

and the results of transferring microgrid operation

modes and cutting or increasing load in islanded mode show the effectiveness and feasibility of the proposed control strategies.

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references

Standards Coordinating Committee 21 . IEEE Standard 1547 For Interconnecting Distributed Resources with Electric Power Systems , 2003

Lasseter R H . Microgrids . Proceedings of 2002 IEEE Power Engineering Society Winter Meeting , New York, USA , 2002

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Zheng Z H , Qian A I . Present situation of research on microgrid and its application prospects in China . Power System Technology , 2008 , 32 （ 16 ）: 27 ～ 31

Chung S K , Kim H S , Kim C G ， et al . A new instantaneous torque control of PM synchronous motor for high performance direct drive applications . IEEE Transcations on Power Electronics , 1998 , 13 （ 3 ）: 388 ～ 400

Cheng J Z , Wu X K , Li S S ， et al . Boost-based two-level grid-connected photovoltaic niverter system . High Voltage Engineering , 2009 , 35 （ 8 ）: 2048 ～ 2052

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