A Dual-Energy-Source Uninterruptible Power Supply (UPS)

被引：0
作者：
Wang, Hao [1 ]
Xu, Dehong [1 ]
Xu, Binci [1 ]
Li, Haijin [1 ]
Zhu, Ye [1 ]
机构：
[1] Zhejiang Univ, Inst Power Elect, Zheda Rd 38, Hangzhou, Zhejiang, Peoples R China
来源：
2018 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-NIIGATA 2018 -ECCE ASIA) | 2018年
基金：
中国国家自然科学基金;
关键词：
dual energy sources; uninterruptible power supply; seamless transfer; SYSTEM;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a dual-energy-source uninterruptible power supply system (DES UPS) is investigated. There are two energy sources with independent infrastructures in the system, grid and natural gas pipeline. It boosts the reliability of traditional UPS. Grid is the primary energy source, while natural gas generator (NG-Gen) acts as the secondary energy source for long-time backup. Firstly, reliability and source cost of the system are evaluated. Then, cold-start characteristic of NG-Gen is analyzed and the seamless transfer strategy of DES UPS is proposed based on the cold-start characteristic of NG-Gen. It achieves the uninterruptible load power supply when system operation mode changes at the grid fault. Then the control diagram is designed accordingly and state of the system during working mode transfer is analyzed. Finally, the concept and control strategy of DES UPS are verified in a 10kW prototype.
引用
收藏
页码：2270 / 2277
页数：8
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