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novel hvdc
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  新型直流输电
     With the development of power electronic technology, it has become possible to use voltage source converter (VSC) in HVDC. In this dissertation, the operation and control of novel HVDC systems (Voltage source converter based HVDC, or HVDC-VSC) as well as some related technology are studied.
     随着电力电子技术的发展,用电压源换流器(VSC)进行直流输电的条件已经具备,本文着重研究了与新型直流输电(HVDC-VSC)相关的运行和控制技术。
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  “novel hvdc”译为未确定词的双语例句
     Some Topics on Novel HVDC and Its Related Technology
     新型直流输电及其相关技术研究
短句来源
     A novel HVDC supplementary controller based on Phasor Measurement Unit (PMU) is proposed.
     (3)提出了一种基于同步相量测量单元(PMU)的直流附加控制器。
短句来源
     Based on conventional HVDC, a novel HVDC with parallel large capacitor connected inthe DC side of the rectifier (shorted form HVDC-C) is presented. The steady model,commutating process, control strategy, filter and DC breaker design of HVDC-C isstudied and compared with conventional HVDC.
     本文在传统高压直流输电的基础上,提出了一种在整流器直流侧并联大电容的高压直流输电系统(HVDC-C),并对提出的系统的稳态模型、换相过程、控制方式、滤波器设计及断路器设计等方面做了研究,并与传统直流输电进行了对比。
短句来源
     Phaser Measurement Unit (PMU) based on Global Positioning System (GPS) can obtain the phasors of bus voltages, especially the voltage phase angles, so it is possible to take advantage of PMU to improve control effects. A novel HVDC supplementary controller based on PMU is proposed in this paper.
     基于全球定位系统(GPS)的同步相量测量单元(Phasor Measurement Unit,PMU)能够测量母线电压相量,尤其是电压的相角。
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  相似匹配句对
     In the novel.
     在小说中,夏洛特塑造了一个外表普通。
短句来源
     on the Novel
     说小说
短句来源
     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 a Novel Hybrid HVDC System
     新型混合直流输电方式的研究
短句来源
     HVDC Transmission Technology
     高压直流输电技术
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The fast response characteristics of HVDC system can be utilized efficiently to damp inter-area low frequency oscillation without additional equipments. Phaser Measurement Unit (PMU) based on Global Positioning System (GPS) can obtain the phasors of bus voltages, especially the voltage phase angles, so it is possible to take advantage of PMU to improve control effects. A novel HVDC supplementary controller based on PMU is proposed in this paper. This controller's input signal is the voltage phase...

The fast response characteristics of HVDC system can be utilized efficiently to damp inter-area low frequency oscillation without additional equipments. Phaser Measurement Unit (PMU) based on Global Positioning System (GPS) can obtain the phasors of bus voltages, especially the voltage phase angles, so it is possible to take advantage of PMU to improve control effects. A novel HVDC supplementary controller based on PMU is proposed in this paper. This controller's input signal is the voltage phase angle difference between two areas, which can effectively reflect the inter-area low frequency oscillation characteristics. The effects of transmission delay on system damping and the robustness characteristics of the controller are investigated. Small signal stability and transient stability of a two-area, four-machine AC/DC test system are studied by PSS/E. The analysis results show that the proposed controller is capable of enhancing the system damping and the AC system's transfer capability over a wide range of operation conditions. This controller can efficiently damp the system's low frequency oscillation and have the good robustness characteristics. And it also works well under the condition of large disturbances.

利用直流系统的快速响应特性,可以在不增加附加设备的条件下有效地抑制交直流系统的低频振荡。基于全球定位系统(GPS)的同步相量测量单元(Phasor Measurement Unit,PMU)能够测量母线电压相量,尤其是电压的相角。该文利 用PMU可改进控制提出了一种基于PMU的直流附加控制器,该控制器以不同区域电压相角差作为输入信号,能有效地反映区域间的低频振荡信息,同时研究了通信延迟对系统阻尼的影响,并考察了控制器的鲁棒性。以一个四机两区域系统作为测试系统,利用仿真软件PSS/E对系统进行小信号稳定和时域仿真分析,分析结果表明该直流附加控制器在系统较大的运行范围内提高了系统阻尼和系统区域联络线的传输能力,有效地抑制系统低频振荡,并且具有较好的鲁棒性,在故障情况下也能较好地发挥作用。

 
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