井下UPS并联供电系统无差拍环流抑制方法

王玲; 吴涛; 李志忠

doi:10.13272/j.issn.1671-251x.2016.06.017

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井下UPS并联供电系统无差拍环流抑制方法

doi: 10.13272/j.issn.1671-251x.2016.06.017

1.
国网陕西省电力公司培训中心，陕西西安710054
2.
国家电网公司电网接地工程技术实验室，陕西西安710054

基金项目:

国家自然科学基金面上项目（E070303）

详细信息

中图分类号: TD611
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- 文章访问数: 13
- HTML全文浏览量: 5
- PDF下载量: 3
- 被引次数: 0
出版历程
- 刊出日期: 2016-06-10

Dead-beat circulating current suppression method of underground UPS paralleling power supply system

1.
Training Center, State Grid Shannxi Elecctric Power Company, Xi''an 710054, China
2.
Power Grounding Engineering Laboratory, State Grid Corporation, Xi''an 710054, China

摘要

摘要: 为了提升煤矿井下UPS供电系统的可靠性，提出了井下UPS并联供电系统无差拍环流抑制方法。首先，建立了UPS并联供电系统拓扑结构的等效离散数学模型，并重点分析了UPS并联供电系统中存在的零序环流问题；然后，引入非线性无差拍控制器对零序电流进行平抑处理；最后，通过2×35 kW UPS并联供电系统实验样机对该方法进行验证与分析。实验结果表明，该方法可有效抑制井下UPS并联供电系统的零序环流，且仅需2~5 ms即可实现UPS并联供电系统的冗余性恢复。
- 矿井UPS并联供电 /
- 不间断电源 /
- 环流抑制 /
- 无差拍控制
Abstract: In order to improve reliability of underground UPS power supply system, a dead-beat circulating current suppression method of underground UPS paralleling power supply system was put forward. Firstly, an equivalent discrete mathematical model of UPS paralleling power supply system topology was established, and zero sequence circulating current in paralleling power supply system was emphatically analyzed. Then, nonlinear dead-beat controller was introduced to control and process zero sequence current. Finally, verification and analysis of the method were done by prototype of 2×35 kW UPS paralleling power supply system. The experimental results show that the method can effectively inhibit zero sequence current of underground UPS paralleling power supply system，and realize redundancy restoration of UPS paralleling power system in 2-5 ms.
- mine UPS paralleling power supply /
- UPS /
- circulating current suppression /
- dead-beat control