Analytical Modeling of Pulsating Torques of Induction Motors Caused by Supply Voltage Unbalance

被引：0

作者：

Wang, Yaw-Juen ^{[1
]}

Lee, Ming-Hsueh ^{[2
]}

Sung, Sheng-Wen ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Touliu 64002, Yunlin, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Grad Sch Engn Sci & Technol, Touliu 64002, Yunlin, Taiwan

来源：

2011 INTERNATIONAL CONFERENCE AND UTILITY EXHIBITION ON POWER AND ENERGY SYSTEMS: ISSUES & PROSPECTS FOR ASIA (ICUE) | 2011年

关键词：

Voltage Unbalance; EMTP; Analytical Method; Pulsating Torque; OPERATION;

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：

Voltage unbalance is frequently encountered in a low voltage AC power network to which many three- phase loads are connected. Pulsating torque of IMs caused by voltage unbalance is well known to electrical engineers, and it can easily be simulated by a computer program or measured from laboratory experimental setups. However, analytical models that clearly interpret the physical mechanism linking the pulsating torque and voltage unbalance are not found in literature. In this paper, we develop an analytical model of pulsating torque produced by an IM under voltage unbalance. The amplitude of the pulsating torque is explicitly expressed as a function of the voltage unbalance factor, i.e., the ratio of the negative-to positive-sequence voltage components. The illustrated examples are analyzed by the proposed analytical model, and validated by results obtained from simulation using the universal machine module of the EMTP.

引用

页数：6