基于模式切换的逆变器与发电机 并联控制策略

2017年9月电工技术学报Vol.32 No. 18 第32卷第18期TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY Sep. 2017

DOI: 10.19595/https://www.360docs.net/doc/9f1806963.html,ki.1000-6753.tces.160159

基于模式切换的逆变器与发电机

并联控制策略

张雪妍马伟明付立军马凡

(海军工程大学舰船综合电力技术国防科技重点实验室武汉 430033)

摘要随着新能源技术的发展,偏远山区、海岛等独立电力系统越来越多地采用新能源发电设备与柴油发电机混合供电方式。针对这类系统中新能源逆变器单独供电、与柴油发电机并联供

电的功能需求,以逆变器单独供电时采用电压源控制、与柴油发电机并联时采用电流源控制为基

础,提出基于逆变器控制模式切换和柴油发电机准同期并联相结合的控制策略,解决逆变器与柴

油发电机并联过程的控制问题,电磁暂态时域仿真和1∶1样机物理实验验证了该控制策略的有

效性。

关键词:独立电力系统逆变器柴油发电机并联控制模式切换

中图分类号:TM61; TM464

Parallel Control Strategy of Inverter and Diesel Generator

Based on Mode-Switching Method

Zhang Xueyan Ma Weiming Fu Lijun Ma Fan

(National Key Laboratory of Science and Technology on Vessel Integrated Power System

Naval University of Engineering Wuhan 430033 China)

Abstract With the development of new energy technology, more and more isolated power systems located in remote mountainous areas start to use both new energy generators and diesel generators as power supply. These power systems have the functional requirements for new energy inverters supplying power independently and diesel generators in parallel power supply. When supplying power independently, the new energy inverters run in voltage source control mode, while they run in current source control mode in parallel operation with diesel generators. Based on these features of the system, this paper proposes a control strategy combining inverter mode-switching and quasi-synchronization in parallel operation with diesel generators. The strategy solves the problem in the control of inverters and diesel generators parallel operation. It is verified through electromagnetic transient time-domain simulation and physical experiment on 1∶1 prototype.

Keywords:Isolated power system, inverter, diesel generator, parallel operation control, mode- switching

国家重点基础研究发展计划(973计划)(613294)和国家自然科学基金(51377167,51607185)资助项目。

收稿日期 2016-01-27 改稿日期 2016-04-07

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