高压直流输电系统中最关键的部分是控制保护部分。
Control and protect section is the most pivotal section in HVDC system.
换相电抗是高压直流输电系统中的一项重要技术参数。
Commutated reactance is an important parameter in HVDC transmission system.
高压直流输电系统在一定条件下可能引发系统的次同步振荡。
The HVDC transmission system may lead to subsynchronous oscillation under certain circumstances.
换流站直流滤波装置的设计关系到高压直流输电系统的安全与经济性。
The design of filtering equipments at dc side of the converter substations is relative to the security and economy of the high voltage direct current (HVDC) transmission system.
因此对高压直流输电系统及其控制器参数优化的研究是十分必要和重要的。
So it's quite necessary to study HVDC system and the optimization of parameters of the control system.
在构成高压直流输电系统一系列关键技术中，滤波装置占据十分重要的地位。
The filtering equipment is an important part of a series of key techniques of high voltage direct current (HVDC)power transmission systems.
提出了一种适用于高压直流输电系统快速灵活控制的在线模糊神经直流控制器。
This paper describes an on - line controller for the fast and flexible control of the HVDC transmission system based on fuzzy logic and ANN.
对该问题的研究解释了由高压直流输电系统控制器诱发汽轮发电机组轴系扭振的机理。
Through studying, the mechanism of the subsynchronous torsion oscillation caused by the controller of HVDC system has been understood.
高压直流输电系统架空线路只需正负两 极导线，可实现大功率、低损耗、长远距离电力的直接输送；
The overhead line of HVDC power transmission system needs positive and negative leads only, allowing for high power, low loss and long distance power transmission;
基于电路基本理论知识，推导出多馈入交、直流并联的高压直流输电系统耦合导纳和换相电压关系表达式。
Based on electrical circuit theory, the formulation of the relation between mutual admittance and converter commutation voltage of the multi-infeed HVDC system was given.
基于故障树法对同一系统的分析结果验证了GO法在特高压直流输电系统可靠性分析中的可用性与正确性。
The fault tree analysis method was used to analyze the same system, and the analysis results completely accorded with the GO methodology.
比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。
Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.
同时，直流接地极关系着高压直流输电系统的安全运行，对于附近的交流系统也有影响，其中的一些问题也十分值得研究。
At the same time, problems of the DC grounding system are valuable because it is not only significant in HVDC operation but also affects the AC system nearby.
本文针对传统轻型高压直流输电系统所存在的缺点，采用一种新的模块化多电平换流器作为轻型高压直流输电系统的换流器。
In this paper, a new modular multilevel converter is used as a converter of HVDC Light, which avoids those disadvantages above effectively.
高压直流输电系统的接地电流在1000A以上，为确保直流接地系统的安全运行，该文对直流电流密度与土壤电阻率的关系进行了研究。
The grounding grip of high voltage direct current(HVDC) power system was working in large currents more than 1 000 A for long-term.
末端加压法对高压直流输电系统所用换流变压器阀侧套管预防性试验，特别是将来特高压直流换流变压器阀侧套管预防性试验具有较高的实用价值。
Applying voltage into the bushing tap method for preventive test of converter transformer value side bushing in HVDC, especially in the future for UHV, will have better practical value.
提出了一种新的故障跟踪估计器来诊断高压直流输电(HVDC)系统中的故障。
A novel fault tracking approximator for fault diagnosis scheme of high voltage direct current transmission (HVDC) system is proposed.
在研究高压直流输电所引起的谐波问题时，应该将交流和直流系统作为一个整体来计算，才能获得准确的结果。
So far in studying harmonic problems caused by HVDO transmission, the ac and DC systems should be treated as a whole to obtain accurate results.
输电集团是高压领域的领先产品与解决方案供应商，是高压直流系统领域的技术领军者。
The Power Transmission Division is a leading supplier of products and solutions in the high-voltage field and technology leader in high voltage Direct Current systems.
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。
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.
针对新型高压直流输电模拟系统12脉波整流器与逆变器产生的谐波，设计了基于新型换流变压器的无源滤波器系统。
In view of harmonic which generated from the new-type HVDC analog system 12-pulse wave rectifiers and the inverter, designed passive filters system based on the new-type converter transformer.
在基于电压源换流器的高压直流输电(VSC -HVDC)交直流混合风电场并网系统中，控制VSC - HVDC送端站注入到PC C点的无功功率可以抑制电压波动。
In hybrid wind farm integration system based on HVDC of voltage source converter (VSC-HVDC), the voltage fluctuation can be alleviated by compensating reactive power to PCC from VSC-HVDC sending end.
在讨论电压源型高压直流输电（VSC-HVDC）的控制策略中，根据所给出的拓扑结构，建立三相静止系统下的数学模型；
According to the given topology of voltage source converter based HVDC system (VSC-HVDC), three-phases mathematic model in stationary frame is established.
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。
在风电场混合并网系统中，通过电压源换相高压直流输电可以控制系统中的无功功率、抑制并网公共点的电压波动。
In interconnected hybrid wind farm system, the voltage fluctuation can be alleviated and the reactive power can be controlled by voltage source converter.
对大规模交直流网络下的高压直流控制保护系统进行参数优化设计，是保证灵活交流输电系统暂态性和稳定性良好的重要手段。
The optimal design of HVDC control and protection parameters in the case of large-scale ac and DC power system network is a valid measure to ensure achieving good transient and stable performance.
建立了基于电压源换流器（VSC）的高压直流（HVDC）（VSC-HVDC）输电系统的标幺值数学模型。
The HVDC light is a new DC transmission technology based on voltage source converter(VSC)and pulse width modulation(PWM)technology.
建立了基于电压源换流器（VSC）的高压直流（HVDC）（VSC-HVDC）输电系统的标幺值数学模型。
The HVDC light is a new DC transmission technology based on voltage source converter(VSC)and pulse width modulation(PWM)technology.
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