直流输电系统接地极电流对交流电网的影响分析。
Analysis on influence of ground electrode current in HVDC on AC power network.
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.
故障的直流输电系统中的电气特性的交流系统更复杂。
The faults of HVDC power transmission system make the electrical characteristics of AC system more complex.
结果表明高岭背靠背直流输电系统具有良好的动态特性。
Simulation results show that the Gaoling back-to-back HVDC power transmission project possesses good dynamic characteristic.
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.
对多馈入直流输电系统的动态特性及稳定控制与分析进行了综述。
In this paper, the dynamic characteristics, stability control and analysis of multi-infeed HVDC transmission system are reviewed.
新型直流输电系统改善了换相特性，还可能应用到弱交流系统中。
Results show that the novel system can better the commutation and probably be used to the weak AC system.
直流输电系统主要有2种运行方式：单极运行方式和双极运行方式。
There are 2 operation modes for DC transmission system:single pole operation and double-pole operation.
控制保护系统的运行情况直接影响着直流输电系统的安全稳定运行。
The stable and secure operation of an HVDC transmission system is influenced by the operating performance of its control and protection system.
未来多个直流输电系统落点于上海地区，将构成多馈入直流输电系统。
In future, several HVDC systems will set in Shanghai, which is expected to create a multi-inked HVDC system.
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.
应注意到，直流输电系统并不会增加交流系统故障时的故障电流。 收藏。
It should be noted that the DC transmission system does not contribute to the fault current flowing in the AC system5 during the AC faults.
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.
这有益于在研究区域电网互联时，充分考虑并发挥直流输电系统应有的作用。
It is useful for considering the functions of a HVDC link in studying interconnection of regional power grids in our country.
分析表明这种控制方法提高了交直流输电系统的稳定性及控制系统的鲁棒性。
Analytical results show that using the presented method the robustness of control system and the stability of AC power transmission system are improved.
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.
本文分析了合成绝缘子的优点，论证了在直流输电系统中使用合成绝缘子的可行性。
This paper discusses the advantages of composite insulator and the feasibility of using composite insulator in direct current transmission.
瓷绝缘子广泛使用在交直流输电系统中，但在直流输电系统中使用还存在很多问题。
Ceramic insulator is widely used in alternating and direct current transmission system. But there exist some problems when using ceramic insulator in direct current transmission system.
最后对多馈入直流输电系统的分析方法进行了综述，并对其存在的问题提出了改进意见。
The analysis methods for multi-infeed HVDC systems are also assessed with existing problems and further improvements suggested.
根据轻型直流输电系统要求及本文的设计方案，研究了机组侧和网侧的大功率VSC的特性。
According to VSC-HVDC system requirements and the design scheme, the characteristics of the high-power VSCs of wind farm side and grid side are studied.
直流输电系统单极大地回路运行方式导致电网部分变压器振动加剧，噪声增大，影响了设备安全。
The monopolar ground circuit operation mode of DC transmission system gives rise to excessive vibration and noise of some transformers in the power grid, which impacts the safety of equipment.
基于界面图形化方式，提出以扩充临界比例法为基础的直流输电系统PID控制器参数优化方法。
Using interface graphic scheme, this paper presents the parameter optimization method for DC transmission PID controller based on expanding critical ratio method.
直流换流器熄弧角是直流输电系统的重要电气量，常被用于判断直流输电系统逆变器的换相失败。
The extinction angle of the DC converter, which is usually used to study the commutation failure of the DC inverter, is an important parameter in the DC transmittal system.
该方法基于微分几何理论，并将直流输电系统等效为两个分别连接在整流侧和逆变侧的变导纳支路。
The approach proposed in this paper is based on differential geometric theory, and the HVDC systems are taken as a variable admittance connected at the inverter or rectifier ac bus.
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.
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.
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