A Fault-Tolerant Direct Controlled PMSG Drive for Wind Energy Conversion Systems

被引:97
作者
Freire, Nuno M. A. [1 ,2 ]
Marques Cardoso, Antonio J. [2 ,3 ]
机构
[1] Univ Coimbra, Dept Elect & Comp Engn, P-3030290 Coimbra, Portugal
[2] Inst Telecomunicacoes, P-3030290 Coimbra, Portugal
[3] Univ Beira Interior, Dept Electromech Engn, P-6201001 Covilha, Portugal
关键词
Direct power control (DPC); direct torque control (DTC); fault diagnosis; fault-tolerant systems; permanent-magnet machines; power-switch open-circuit faults; semiconductor device reliability; wind power generation; DIRECT POWER-CONTROL; OPEN-SWITCH FAULTS; PWM CONVERTER; MOTOR; RELIABILITY; STRATEGY; RECTIFIER; DIAGNOSIS; ALGORITHMS; RIPPLE;
D O I
10.1109/TIE.2013.2251734
中图分类号
TP [自动化技术、计算机技术];
学科分类号
080201 [机械制造及其自动化];
摘要
Reliability and availability levels are crucial aspects for assessing the economic viability of wind energy conversion systems. Therefore, fault-tolerant systems can make a valuable contribution. This paper presents a fault-tolerant permanent-magnet synchronous generator (PMSG) drive employing new direct control techniques. For postfault operation, a direct power control (DPC) of a four-switch three-phase converter and a direct torque control of a three-switch three-phase rectifier are proposed. Switching tables are theoretically formulated for both control techniques. Two alternative tables are obtained for the DPC of the grid-side converter, permitting the choice between implementation simplicity and enhanced performance. All necessary reconfigurations to handle open-circuit faults are triggered by a reliable fault diagnostic method, which has a low computational demand, without requiring additional measurements. Experimental results are presented, demonstrating the feasibility of the proposed fault-tolerant PMSG drive.
引用
收藏
页码:821 / 834
页数:14
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