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1·The configuration of 18-pulse inverter with an auxiliary transformer, the principle, and output harmonics of the inverter are introduced and analyzed in this paper.

介绍了具有辅助变压器的18脉波逆变器的结构，分析了该逆变器的工作原理及输出谐波。

2·The auxiliary circuit is composed of an auxiliary switch, a coupled inductor (flyback transformer) and a feedback diode.

辅助电路由辅助开关管、耦合电感(反激变压器)和反馈二极管构成。

3·The outage of substation auxiliary power system has severe impact on the main transformer coolers, protection, communication and automation systems of substation.

变电站所用电系统全停故障将对变电所主变冷却器、保护、通讯、自动化等设备产生严重影响。

4·It has many remarkable advantages such as simple auxiliary circuit, realizing ZVS in the wide load range, no voltage spike and surge of the transformer secondary side and easy to be controlled.

与基本ZVS三电平变换器相比，该变换器具有辅助网络简单、实现零电压范围宽、副边无电压过冲和占空比丢失以及控制方式灵活等优点。

5·The utility model discloses an electric energy quality regulator, comprising an original edging voltage changer, a high-frequency transformer and an auxiliary edging voltage changer.

本实用新型公开了一种电能质量调节器，它包括原边电压变换器、高 频变压器和副边电压变换器。