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1·Present status and prospect of HVDC transmission in China.

中国直流输电的现状及展望。

2·HVDC test is one of routine tests on the converter transformer.

高压直流试验是换流变压器的例行试验之一。

3·PI control policy is commonly used for conventional control of HVDC.

HVDC系统的常规控制普遍采用PI控制策略。

4·Control and protect section is the most pivotal section in HVDC system.

高压直流输电系统中最关键的部分是控制保护部分。

5·All four HVDC links that have been built to date were delivered by ABB.

迄今为止，全部建成的四条HVDC传输线全部由abb交付。

6·The new features of modern HVDC converter valves are introduced briefly.

介绍了现代HVDC换流阀的设计特点及新增特性。

7·Analysis on influence of ground electrode current in HVDC on AC power network.

直流输电系统接地极电流对交流电网的影响分析。

8·The method presented is applicable for the analysis of HVDC unipolar ionized field.

该方法可适用于HVDC单极离子流场的计算分析。

9·This fact should be considered in the insulation design of HVDC transmission lines.

这一事实在HVDC输电线路的绝缘设计中必须考虑。

10·The performance of its basic controller decides the operation condition of HVDC system.

HVDC系统能否正常运行与其基本控制器的性能息息相关。