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高压直流输电hvdc
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     Based on voltage source converter (VSC) and pulse width modulation (PWM) technology, the VSC based HVDC (VSC-HVDC) transmission system possesses the capability of controlling active power similar to conventional high voltage direct current (HVDC) transmission system as well as that of controlling reactive power similar to static synchronous compensator (STATCOM).
     基于电压源换流器(voltage source converter,VSC)和脉宽调制(pulse width modulation,PWM)技术的新型高压直流输电(VSC-HVDC)系统,具有与传统高压直流输电(HVDC)相似的有功功率控制能力,同时还具有与静止无功发生器(staticsynchronouscompensator,STATCOM)相似的无功功率控制能力。
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     This paper analyzes the structure and principle of high voltage DC transmission(HVDC)system,builds a model of 6-impulse bridge HVDC system and makes a emulate on it.
     分析了高压直流输电(HVDC)系统的结构和原理,建立了一个6脉冲桥HVDC系统模型并进行了仿真。
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     The valve insulation type test of ±500 kV HVDC power transmission is the test of highest voltage grade now on the world.
     ±500kV高压直流输电(HVDC)换流阀绝缘型式试验是目前国际上最高电压等级的换流阀绝缘试验。
短句来源
     Based on the study of fuzzy logic control technology,neural network technique and high-voltage direct-current(HVDC)transmission system,it is explained theoretically that the adoption of fuzzy neural network control on both sides of converters caneffectively advance the dynamic behavior and steadiness of AC/DC system.
     在研究模糊逻辑控制技术、神经网络技术和高压直流输电(HVDC)系统的基础上,从原理上说明,对换流器两侧都采用模糊神经网络控制能有效地提高交流? 直流(AC/DC)系统的动态特性和恒定性。
短句来源
     The detailed modeling of controls and power system elements is required in the transient performance study of HVDC(High Voltage DC transmission) converter using EMTP/ATP.
     基于EMTP/ATP程序研究高压直流输电(HVDC)换流器的暂态特性,需要建立控制及电气元件的详细模型,同时,在进行仿真研究时,尤其是当HVDC换流器与弱交流系统相联时,需特别注意电磁暂态过程本身所具有的复杂特性。
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  相似匹配句对
     HVDC Transmission Technology
     高压直流输电技术
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     The communication system of HVDC transmission network
     高压直流输电系统的通信
短句来源
     Hardware experiment on voltage source converter—high voltage DC transmission system(VSC-HVDC)
     VSC-HVDC高压直流输电实验装置
短句来源
     Calculation of Overvoltage Caused by Monopolar Grounding on EHV DC Transmission Line
     超高压直流输电线路单极接地过电压计算()
短句来源
     STDBUS-BASED MICROCOMPUTER CONTROL SYSTEM IN HVDC——(1)Multi-CPU Modularized Hardware
     采用 STD 总线的高压直流输电微机控制系统()
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This paper presents a completely digital control project on a convert of HVDC simulation, based on two 16 -bit single -chip-microcomputer MCS-96s. The project was decide to achieve as much as possible by using the MCS-96s self functions and software so as to minimize the external hardware circuits. The digital controller's hardware, software structures and functions, HVDC simulation's control characteristic, are introduced. The detailed HVDC control principles, such as voltage dependent current limitters (VDCL)...

This paper presents a completely digital control project on a convert of HVDC simulation, based on two 16 -bit single -chip-microcomputer MCS-96s. The project was decide to achieve as much as possible by using the MCS-96s self functions and software so as to minimize the external hardware circuits. The digital controller's hardware, software structures and functions, HVDC simulation's control characteristic, are introduced. The detailed HVDC control principles, such as voltage dependent current limitters (VDCL) , a PI control amplifier and alpha-minimum symmetrization unit, are discussed here. Performed by the digital controller, a part of the results of the HVDC simulation's operation are showed in the end of the paper.

论述了用16位单片微机MCS~96实现的高压直流输电(HVDC)模拟系统换流桥的全数字控制方案。在研究过程中力求充分利用微机本身资源和尽可能通过软件来达到目的,以减少外围设备电路。介绍了微机控制器的硬件、软件结构和功能,HVDC控制特性以及包括低电压电流限制(VDCL)、PI调节及定触发角控制在内的各种控制方式的控制原理。最后还给出了在该控制器作用下HVDC模拟系统的部分运行结果。

Based on the analysis of impedance frequency characteristics of double tuned filters in HVDC systems, its quality factor is defined and the infection of parameters such as damping resistance change to filtering performance is analyzed in this paper. An example of the double tuned filter in a HVDC project is calculated. Calculation results show that the definition put forward in this paper is useful in the parameter design of double tuned filters.

在分析高压直流输电(HVDC)系统双调谐滤波器阻抗-频率特性的基础上,给出其品质因数的定义,分析了阻尼电阻等参数对滤波性能的影响。并对某HVDC工程所采用的直流滤波器进行了计算,计算结果表明所提出的定义可以为双调谐滤波器的参数设计提供工程指导。

Back to back HVDC system had been used to join AC systems. When the frequencies of the joined AC systems are different, there will be not only characteristic harmonics and uncharacteristic harmonics but also interharmonics. This paper gives a general simulation model of the 6-pules convertor ,and makes use of the method of descrite time domain analysis(DTA) for the study of steady state simulation of the back to back HVDC system.The result of this research is the base of the studing of performance and relationship...

Back to back HVDC system had been used to join AC systems. When the frequencies of the joined AC systems are different, there will be not only characteristic harmonics and uncharacteristic harmonics but also interharmonics. This paper gives a general simulation model of the 6-pules convertor ,and makes use of the method of descrite time domain analysis(DTA) for the study of steady state simulation of the back to back HVDC system.The result of this research is the base of the studing of performance and relationship of harmonics on AC side and DC side.

背靠背高压直流输电(HVDC)系统已经在交流系统连网中得到了应用。在连接不同频率的交流网络时,它不仅存在通常HVDC系统的特征谐波、非特征谐波,还存在着间谐波。文章通过一个6脉波桥通用仿真模型的建立,采用时域离散分析(DTA)方法对背靠背HVDC系统进行了稳态仿真研究,其结果是研究AC侧、DC侧谐波特性及其联系的基础。

 
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