ac excitation power supply
ac excitation power supply
交流励磁电源
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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In this paper, a back-to-back PWM converter is considered as the optimum scheme of ac excitation power supply and its operation principle and control strategy are discussed in detail.
在分析了其他变频器的局限性后，指出了双PW M变频器是交流励磁的最佳电源方案，详细地讨论了电压型双pw M变频器的工作原理与控制策略。
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