First of all, the article describes the information of SE company briefly, and introduces the low-voltage inverter as an example of SE auto-control products. 首先,本文概述了SE公司的概况,以低压变频器(LVI)为代表,对工控产品进行介绍。
An estimation method of power loss in low-voltage large-capacitance inverter 低压大容量逆变器功率损耗的一种估算方法
By the synthesis of low-voltage characters, a sinusoid inverter circuit is designed which applying parallel connected low-voltage power MOSFET, single polarity SPWM and dual-loop control method, meanwhile, the current source model is described and the simulation and examination is accomplished. 在总结低压逆变电路特点的基础上,设计了采用多个大容量低压MOSFET并联,利用单极性倍频式SPWM、双环反馈控制方式实现的正弦波逆变电路,完成稳流源建模、设计仿真及实验。
The push-pull DC-DC converter adopts voltage closed-loop control converting low-voltage direct current into stable high-voltage direct current, which simplifies the inverter. 推挽升压变换环节采用了电压闭环控制,将低压直流电转换成稳定的高压直流电,使逆变环节的控制简单化。
In this paper low-voltage AC of rotor winding can be pumped to high-voltage DC by AC boost-chopper technology, and the DC feedbacks to power network by inverter. 本文运用交流升压斩波技术将转子绕组的低压交流电泵升为高压直流,再经逆变送回电网。