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首页> 外文会议>International Conference on Electrical, Control and Automation Engineering >An Optimal Reactive Power Control Scheme for Rectifier Station of LCC-HVDC System during High Power Transmission
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An Optimal Reactive Power Control Scheme for Rectifier Station of LCC-HVDC System during High Power Transmission

机译：高功率传输过程中LCC-HVDC系统整流器站的最优无功功率控制方案

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摘要

When rectifier station of LCC-HVDC has power fluctuations running at large load, AC filters controlled in groups at rectifier station are switched frequently. That problem potentially has impact on service life of corresponding circuit breaker and threatens the safe operation of the DC system. In this paper, due to the characteristic of close connection between rectifier station and AC system, the AC filters in the station and the generators in AC system provide reactive power collaboratively to reduce the switching times of AC filters. Combined with the existing reactive power control scheme, the proposed strategy takes the net exchange of reactive power between DC system and AC system and the commutation bus voltage as the control variables with the starting point of taking full account of the reactive power support capacity of the generators. The simulation results in power system analysis and synthesis program (PSASP) show the effectiveness of the proposed method.
机译：当LCC-HVDC的整流器站具有在大负载下运行的功率波动时，在整流器站的组中控制的AC滤波器经常切换。该问题可能对相应断路器的使用寿命产生影响，并威胁到DC系统的安全操作。本文由于整流站与AC系统之间密切连接的特性，站立中的AC滤波器和AC系统中的发电机提供了有效功率，以减少交流滤波器的切换时间。结合现有的无功功率控制方案，所提出的策略采用DC系统和AC系统之间的无功功率的净交换，并将换向总线电压作为控制变量，并具有开始的启动点，以满足无功功率支持容量发电机。电力系统分析和合成程序（PSASP）的仿真结果表明了该方法的有效性。

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