1) power converter
电力变换
1.
Space vector modulation PWM algorithm is widely used in power converter because of high voltage uti– lization,lower switching losses,easily realized in digital system.
空间矢量调制算法生成PWM波因电压利用率高,开关损耗小,易于数字实现,在电力变换设备中应用日益广泛。
2) power conversion
电力变换
1.
A DC-zonal electric distribution system based integrated power system for a conceptual nuclear ship is proposed,where all of the ship service power generated by high-speed diode-rectify generators is delivered to the zonal loads through staged power conversion by means of power electric converters,which provide system-protecting and speed-control as well.
该方案以直流区域配电系统为基础,以高速整流发电机为电源,采用电力电子器件实现电力变换、系统保护和调速控制。
3) Power converter
电力变换器
1.
Nowadays, the switching frequency of power converters has increased up to values that make interesting.
当今,随着电力变换器开关频率的提高,应用相关技术来减少开关电源电路的EMI是值得研究的课题。
4) electric power converter
电力变换器
1.
Ac- cording to the current-tracing control technology,the digital control system based on the high performance DSP chip TMS320LF2407 was designed in order to control the electric power converter.
传统的电力变换器中的高次谐波,污染电网成为电力公害已是不容忽视的问题。
2.
Novel devices and current-tracking control technology are introduced that control the electric power converter according to the principle of high power factor converter and the digital control system based on the high performance DSP chip TMS320LF2407 is designed.
根据高功率因数电力变换器的工作原理,采用新型的控制器件和新型的电流追踪控制技术对电力变换器进行控制,并且设计了以高性能的DSP芯片TM320LF240A为核心的全数字控制系统,由于系统对输入电流进行了实时的控制,可以改变输入电流的相位和大小,改善电力系统的运行特性,具有较大的技术和经济意义。
5) power electronics converter
电力电子变换器
1.
To the most potential variable-speed constant-frequency doubly fed induction generator,the device of power electronics converter used to control rotate speed is analyzed.
针对最具有发展潜力的变速恒频双馈风力发电系统,分析其用于转速控制的电力电子变换器装置。
6) power converter
电力电子变换器
1.
This paper has introduced the technical development of the integrated power system for surface ships,including the technical development of gas-turbine generator set,propulsion motor,power converter and zone electric distribution system.
概述了水面舰艇综合电力系统的技术进展,包括燃气轮机发电机组技术、推进电机技术、电力电子变换器技术和区域配电系统技术的发展现状。
2.
The research on the parallel operation of power converters has become one of the hot issues in the field of power electronics.
电力电子变换器模块的并联技术现己成为电力电子领域的研究热点。
补充资料：Radon变换和逆Radon变换
Radon变换和逆Radon变换
X线物理学术语。CT重建图像成像的主要理论依据之一。1917年澳大利亚数学家Radon首先论证了通过物体某一平面的投影重建物体该平面两维空间分布的公式。他的公式要求获得沿该平面所有可能的直线的全部投影(无限集合)。所获得的投影集称为Radon变换。由Radon变换进行重建图像的操作则称为逆Radon变换。Radon变换和逆Radon变换对CT成像的意义在于，它从数学原理上证实了通过物体某一断层层面“沿直线衰减分布的投影”重建该层面单位体积，即体素的线性衰减系数两维空间分布的可能性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条