It points out that advantage of PWM modulation and economy of active inverter's power feedback technique makes use of power thyristor.
指出PWM调制的优点和采用功率晶闸管有源逆变器的能量回馈技术的经济性。
The paper introduces a new type of technique for elevator energy-saving, Active Power energy Feedback System, and the economic and social benefit resulted by elevator energy-saving.
本文介绍了一种新型的电梯节能技术——有源能量回馈器系统以及电梯节能技术在实际应用中所带来的经济效益和社会效益。
The gird side converter is adopted DC voltage stable and unit power factor grid-connected control, and feedback the active power absorbed from the load side to the grid side.
网侧变流器采用直流电压稳定并保证并单位功率因数并网，并将负荷侧吸收的有功功率馈送回电网。
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