The special inverter and pump for photovoltaic water pump is expensive and making using of general inverter to drive general water pump can not tracks point of maximal power.
2
本文叙述了高压变频器在油田注水泵上的应用，节电效果明显，具有推广应用价值。
The paper mainly introduces the application that the high voltage inverter in the oil field pump and joint electricity effect is clear, and possesses application and dissemination value.
3
本系统具有控制简单、外围电路较少、性能价格比高等优点，适合于风机、水泵用变频器的性能要求。
The system had the advantages of simple control, little peripheral, high performance and low price, which would meet the demands of the inverters using in fan and water pump.
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