现场工业试验成功地实现了大功率电机变频到工频的平稳切换，切换电流大大减小。
In the industry test is realized to successfully complete the switch from VF to WF, the switch current greatly decrease.
利用模糊控制理论设计合理的切泵逻辑，实现了平稳切换。
Rational switching logic of pumps is designed with fuzzy control theory, and stable switching is implemented.
结果证明可以平稳的实现系统的安全切换。
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