voltage level的例句大全

A new approach for high voltage and high power three-level DC-DC conversion

一种适用于高压大功率变换器的三电平直流变换器

Power devices of inverter must be controlled in the zero level of DC pulse voltage. It not only meets certain switching rule, but also changes switching state in order to realize zero voltage switching.

逆变器功率管为实现零电压开关，除了要满足一定的开关规律外，还必须控制在直流脉冲波形的过零处改变开关状态。

Research for IGBT 3-level Invert Voltage Space Vector Control Method

IGBT三点式逆变器电压空间矢量控制方法

There are many types of main circuit for high voltage VFDs, mainly are current source type, 3-level PWM type with clamped neutrals, unit series multi-level type and multi-level together with multi-layer type.

高压变频器主电路拓扑结构形式有多种，主要有电流源型变频器、中性点钳位三电平PWM变频器、单元串联多电平变频器、多电平+多重化变频器等。

Accidents of Stoppage of Power Supply and Breakage of Isolated Level of High Voltage Electromotor Due to Cable Trouble

电缆故障引起的停电及高压电机绝缘击穿事故

Little Moons A New Method for the Realization of RF Low-level Voltage Standard

建立高频小电压标准的一种新方法

Due to the inverse distribution between energy resources and load demands in China, the strategic objective of developing UHV transmission backbone coordinated with multi-level voltage grid was put forward by State Grid Corporation of China.

基于能源资源和负荷需求逆向分布的国情，我国国家电网公司提出了建设以特高压电网为骨干网架、各级电网协调发展的战略目标。

Several zero voltage and zero current switching PWM push pull three level converters are proposed.

最后，本文还提出了另外几种零电压零电流开关PWM推挽三电平直流变换器。

The quality of the output voltage in step level inverters could be improved both by the scheme of amplitude modulation and by the scheme of phase modulation.

通过调节各阶梯电平的幅度或各阶梯电平的相角都可以达到改善逆变电源输出电压质量的目的。

At the same time, the effects of the line parameter, air condition and height above sea level on the corona inception voltage and electric field are also analyzed.

最后分析了线路参数、大气条件和海拔高度对起晕电压和起晕场强的影响，对不同类型的导线进行了计算。

Voltage Control Character of the Natural Soft-Switching Two-Level DC-AC Power Converter With Adjustable DC Link Voltage

可升压自然软开关DC/AC逆变器电压控制特性分析

So the flip-flop output level changes from low to high voltage or high to low voltage on command.

因此触发器输出电平的变化，从低到高电压或前高后低电压对指挥。

The original is begined with through electric power security, Point out electrified wire netting low level operation perniciousness, Analyse the reason that the low level takes shape, Propose several steps that guaranty line voltage is steady.

从电力安全入手，指出了电网低电压运行的危害性，分析了低电压形成的原因，提出了保证电网电压稳定的几条措施。

Study on Three level Inverter Using Space Voltage Vector PWM Method

采用空间电压矢量PWM方法三电平逆变器研究