逆变的 meaning in English
contravariant
Examples
- Finally , the experimental study of the reversible rectifier is done . the resultfof the experiment proves that both the theoretic analysis and the simulation results are correct
根据原理电路的理论设计制作了一套硬件电路，并对此电路进行了整流和逆变的实验研究，验证了电路的仿真和理论分析的正确性，为实际工程应用打下了一定基础。 - Under the test conditions of ud = 2800v and 350hz switching frequency , the current in three phase inverting test reached to loooar . m . s , which can fully meet the requirements of 350km / h emu with 2600v link voltage and 950ar
在中间直流环节电压u _ d = 2800v ，开关频率为350hz的条件下，逆变的试验电流达到了1000ar . m . s ，完全能够满足350km h高速动车组对变流器中间电压2600v 、输出电流为950ar . m . s的要求，表明了地面试验机组的研究获得了成功。 - In the chapter one , the primary principle of invert technique and its types have been dealt with . it also previews the development on high power invert technique in the future , as the result pointing out that the trend of the coming invert technique are high frequency , high power and highly intelligence
本文在第一章论述了逆变的基本原理与分类，并对大功率逆变技术的未来发展作了展望，指出了高频化、高容量化、与智能化是其今后的发展趋势。 - In this paper , researching and producing on current waveform control system of inverter carbon dioxide welding machine is given . the overall plan , the design of hardware structure , the programming and debugging of software is described in detail . the bang - bang and alterable structure discrete pid synthetic control algorithm are used to modulate the width of pwm signal in real time , to acquire the fiat character by driving and controlling the opening and shutting time of igbt , the technology of " double impulse " is adopted to realize electric current waveform control
本文介绍了逆变波形控制co _ 2焊机控制系统的研制，详细阐述了总体方案的制定、硬件研制及软件的编写与调试，采用变结构、离散型pid + bang - bang复合控制算法、实时调节输出pwm信号的脉冲宽度，驱动控制用于逆变的大功率开关管igbt的开通与关断时间，获得逆变焊机平外特性。