A novel strategy of efficiency control for a linear compressor system driven by a PWM inverter

被引：65

作者：

Chun, Tae -Won ^{[1
]}

Alm, Jung-Ryol ^{[1
]}

Lee, Hong-Hee ^{[1
]}

Kim, Heung-Gun ^{[2
]}

Nho, Eui-Cheol ^{[3
]}

机构：

[1] Univ Ulsan, Dept Elect Engn, Ulsan 680749, South Korea

[2] Kyungpook Natl Univ, Sch Elect & Elect Engn, Taegu 702701, South Korea

[3] Pukyong Natl Univ, Dept Elect Engn, Pusan 608739, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2008年 / 55卷 / 01期

关键词：

efficiency control; linear compressor; linear permanent magnet synchronous motor (LPMSM); pulsewidth modulation (PWM) inverter; resonant frequency;

D O I：

10.1109/TIE.2007.909730

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Linear compressors with a free piston driven by a linear motor have attracted wide attention in cooling apparatuses such as refrigerators due to their high efficiency. The method of using triacs as a linear motor drive is not satisfactory for improving the efficiency of linear compressors. In this paper, the performance of linear compressors using a pulsewidth modulation inverter is investigated, with emphasis on the efficiency and power factor along with variations of both mechanical and electrical resonant frequencies. The strategy for improving the efficiency of the linear compressor is suggested by controlling the average value of the product of the piston stroke and motor current to 0. The performance of both the stroke and efficiency controls of the linear compressor is verified through experiments under various gas pressure conditions.

引用

页码：296 / 301

页数：6

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