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标题：电动汽车宽速域优化算法及弱磁控制策略研究 |
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作者：汪兆栋，游林儒，曾文涛 |
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| 2015年第7期 访问次数：210次 |
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摘要：为了扩展电动汽车稳定运行区域，提出了一种综合式的SVPWM调制算法，并在此基础上实现了一种优化的永磁同步电机弱磁控制策略。优化后的弱磁控制策略不需要准确知道电机参数等变量，且算法简单易于实现。试验结果表明，该弱磁策略控制下的电机运行稳定，不仅提高了逆变器直流侧母线电压的利用率，而且增大了电机弱磁基速转折点，扩展了电机转速稳态运行区域。
关键词：电动汽车；永磁同步电机；综合式SVPWM；零矢量作用时间；弱磁控制策略
Abstract: In order to expand the steady state running region on electric vehicle, proposed an integrated SVPWM modulation algorithm and realized an optimized fluxweakening control strategy on PMSM. The optimized strategy can be simply and easily implemented without requiring the accurate motor parameters. Experimental results show that the strategy not only improves the utilization rate of the inverter DC bus voltage, but also increases the fluxweakening basic speed turning point and expands the steady state running region besideed the motor runs steady.
Key words: electric vehicle; permanent magnet synchronous motor; integrated SVPWM; zero vector work time; fluxweakening control
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