发明名称 |
CURRENT BALANCE CONTROL IN CONVERTER FOR DOUBLY FED INDUCTION GENERATOR WIND TURBINE SYSTEM |
摘要 |
<p>Systems and methods for reducing current imbalance between parallel bridge circuits used in a power converter of a doubly fed induction generator (DFIG) system are provided. A control system can monitor the bridge current of each of the bridge circuits coupled in parallel and generate a feedback signal indicative of the difference in bridge current between the parallel bridge circuits. Command signals for controlling the bridge circuits can then be developed based on the feedback signal to reduce current imbalance between the bridge circuits. For instance, the pulse width modulation of switching devices (e.g. IGBTs) used in the bridge circuits can be modified to reduce current imbalance between the parallel bridge circuits.</p> |
申请公布号 |
CA2826557(A1) |
申请公布日期 |
2014.03.14 |
申请号 |
CA20132826557 |
申请日期 |
2013.09.05 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
WAGONER, ROBERT GREGORY;SEYMOUR, ROBERT ALLEN |
分类号 |
H02M1/00;H02K7/18;H02M5/458;H02P9/00 |
主分类号 |
H02M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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