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hvdc modulation
相关语句
  直流调制
     3) The coordinating strategy and effect of PSS and HVDC modulation are discussedin detail.
     3)研究了交直流互联电网中PSS与直流调制协调作用的策略及共同抑制低频振荡的效果。
短句来源
     A novel nonlinear robust HVDC modulation controller is designed.
     并将该方法用于非线性鲁棒直流调制控制器的设计中。
短句来源
     Research on the Coordination of PSS and HVDC Modulation Damping Low Frequency Oscillation
     PSS与直流调制协调作用抑制低频振荡的研究
短句来源
     A Novel WAMS Based HVDC Modulation Method
     基于广域测量信息的直流调制新方法
短句来源
     2) By comparing PSS and HVDC modulation, the two methods for enhancingdamping, conclusion that borrow-damping principle unifies them is given. Bothof them increase damping of modes strongly related to them, meanwhile,decreasing damping of other modes.
     2)比较PSS和直流调制这两种增强系统阻尼的方法,指出它们在借阻尼机理上是统一的,即都是通过减弱与它们非强相关的振荡模式的阻尼来增强与它们强相关振荡模式的阻尼。
短句来源
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  “hvdc modulation”译为未确定词的双语例句
     Novel nonlinear robust HVDC modulation controller
     新型非线性鲁棒直流输电调制器的研究
短句来源
     4) The principle of HVDC modulation is further explained from the view of energydistribution.
     4)从能量角度进一步解释了直流调制的机理。
短句来源
     (3) Influences on transient stability margin and HVDC system by using different HVDC modulation parameter under certain control modes, and by using the power slope of south AC transmission system and north AC transmission system as modulation singal and different modulation measures under different control modes, when fault is occurred on north AC transmission system in Southern China Power Grid in the year of 2005, with Guizhou-Guangdong HVDC system monopole operating and Tianshengqiao-Guangzhou HVDC system bipolar operating, is studied.
     (3) 以南方电网2005年丰大运行方式、贵广直流单极运行、天广直流双极运行为例,当南方电网交直流混联输电系统中北通道交流输电系统发生扰动时,研究了直流系统在一定的主控方式下,采取不同调制增益对系统暂态稳定裕度及直流系统的影响;
短句来源
  相似匹配句对
     Novel nonlinear robust HVDC modulation controller
     新型非线性鲁棒直流输电调制器的研究
短句来源
     Research on HVDC Small Signal Modulation and Telephone Interference
     直流小信号调制及电话干扰研究
短句来源
     The modulation of pyrophosphate: D-
     植物中D:果糖6—磷酸1—磷酸转移酶(PPi—PFK,EG 2.7.1.90)活性的调节是非常重要的。
短句来源
     Equivalence and Modulation
     等效原则与翻译中的调整
短句来源
     HVDC Transmission Technology
     高压直流输电技术
短句来源
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The application of nonlinear PID method, which is a latest achievement in the field of control technology, in high voltage direct current (HVDC) modulation controller is studied. Tracking differentiator as an elementary unit for nonlinear PID technology is improved so that it can yield better differential signal. A novel nonlinear robust HVDC modulation controller is designed. For nonlinear PID approach is independent of the controlled system model, the novel controller manifests robustness...

The application of nonlinear PID method, which is a latest achievement in the field of control technology, in high voltage direct current (HVDC) modulation controller is studied. Tracking differentiator as an elementary unit for nonlinear PID technology is improved so that it can yield better differential signal. A novel nonlinear robust HVDC modulation controller is designed. For nonlinear PID approach is independent of the controlled system model, the novel controller manifests robustness for both equilibrium and uncertainty of models. Simulation results performed on a two machine system validate the robustness and demonstrate the controller is effective in improving the system stability and enhancing the dampness.

对控制领域的新成果——非线性PID方法应用于直流输电调制控制器做了较为系统的研究。首先对非线性PID方法的基础元件——跟踪微分器进行了改进,以提高其性能。并将该方法用于非线性鲁棒直流调制控制器的设计中。由于既考虑了电力系统的非线性又避免了控制规律对模型参数的依赖,所设计的直流调制控制器对扰动和模型的不确定因素都有很强的适应能力。仿真结果表明,与以往的直流调制控制器相比,这种非线性鲁棒直流调制控制器可以更好地提高系统的稳定性和改善系统的动态特性。

This paper describes the transmission capability of Tian-Guang AC and DC hybrid system, as well as various operational effects on the transmission capability, such as HVDC modulation, AC voltage level and generating reserves. The study has shown that when both AC and DC systems operated in parallel, this system has higher transmission capability than operated separately, thus it satisfies stability criterion after the project put into operation.

本文介绍南方电网天-广交直流混合系统及各种运行状况,譬如直流调制效应,交流电压水平和电源备用容量等对传输容量的影响。研究表明在该项目投入运行后,交直流系统并列运行时,其传输容量大于单独运行,并能满足稳定准则。

Based on the analysis of conventional HVDC (High - Voltage Direct - Current power trans-mission) control strategies,the recent application developments of advanced control technologies in HVDC controls and HVDC modulations are summarized. Studies on the designing and implementa-tion of various HVDC control strategies are introduced with their advantages and disadvantages being emphasized. The problems lying ahead in the HVDC control researches such as compre-hensive assessment of control...

Based on the analysis of conventional HVDC (High - Voltage Direct - Current power trans-mission) control strategies,the recent application developments of advanced control technologies in HVDC controls and HVDC modulations are summarized. Studies on the designing and implementa-tion of various HVDC control strategies are introduced with their advantages and disadvantages being emphasized. The problems lying ahead in the HVDC control researches such as compre-hensive assessment of control strategies,systematic selection ways of HVDC modulation signal for multi-infeed AC / DC hybrid grid,self - adaptive HVDC small- signal modulation technique,robust big - signal modulation technique and global coordinated controls are pointed out. The potential re-search means to solve them are explored. This project is supported by the National Nature Science Foundation of China (50337010) and Nature Science Foundation of Guangdong Province Education Bureau(Z03031).

在总结直流输电系统常规控制策略的基础上,综合评述了近年来先进控制技术在高压直流输电HVDC(High鄄VoltageDirect鄄Currentpowertransmission)控制及调制技术中的应用研究现状,介绍了当前各种控制研究所采用的技术路线和实现方式,重点分析了各种控制方法和控制策略的优点和不足,指出了HVDC控制研究中亟待解决的问题,如控制策略的综合评估,系统化多馈入交直流系统直流调制信号选取原则,具有自适应阻尼能力的HVDC小信号调制技术,具有鲁棒性的大信号调制技术,全局协调控制等。对可能的研究手段进行了探讨。

 
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