以三相逆变电路为基础，阐述了如何将开环系统的控制方法用于闭环系统，并且介绍了这种新的控制方法在实际中的应用，证明了该方法的有效性。
On the basis of three-phase inverting circuit, this paper describes how to make the control method of open loop system in closed loop system.
该主电路采用晶闸管三相全控桥整流电路，IGBT单相全桥逆变电路。
This main circuit is composed of the three-phase fully-controlled bridge using GTO and the single-phase bridge inverter using IGBT.
平台以TMS320F2812为核心控制器，以EPM7128实现PWM信号触发，以IR2130为驱动芯片构建了三相全桥逆变电路。
The platform is designed with TMS320F2812 as its core and realizes PWM signal trigger with EPM7128. The three-phase full-bridge circuit is constructed with IR2130.
串联H桥多电平变频器的主回路从结构上可分为三相电容滤波不可控整流电路和单相电压型全桥逆变电路。
The series H-bridge multilevel converter's power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase H-bridge voltage-type inverter.
电能由三相配电变压器经AC DC AC逆变电路输出传送到油管，经油管下部的油套管接触器连接到套管，形成一个完整的回路。
Electric power is output to the oil tube, which is connected with the bushing by the oil bushing connecter on the bottom of the oil tube, via a 3-phase transformer after AC-DC-AC inverse circuit.
对三相逆变电源的逆变电路、驱动电路、工作电源、保护电路和稳压反馈电路进行了设计研究；
Then the article designs and researches inverter circuit, driver circuit, working power supply, voltage regulator feedback circuit protection circuit of three-phase inverter power.
晶闸管三相半波可控整流与逆变电路的电压波形是不同的，而共阴极接法与共阳极接法的波形又有所不同。
The wave shape of Voltage in 3-phase controlled rectification is not as same as it does in circuit. The wave shape of common-cathode circuit is also different with that of common-anode.
晶闸管三相半波可控整流与逆变电路的电压波形是不同的，而共阴极接法与共阳极接法的波形又有所不同。
The wave shape of Voltage in 3-phase controlled rectification is not as same as it does in circuit. The wave shape of common-cathode circuit is also different with that of common-anode.
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