摘要
EAST电源系统包含一套由固定电容器和晶闸管控制电抗器（TCR）组成的无功补偿系统。为防止并联谐振影响EAST实验及电网安全，研究了EAST无功补偿系统与10kV电网分布电感之间的低频谐振。分析表明，在TCR投入量不断变化时，系统的低频谐振点在2．04～2．24之间，EAST电源产生的二次谐波电流被放大后在国家标准允许范围内。MATLAB和PSCAD对整个系统的仿真结果验证了上述结果的正确性。
The power supply of EAST contains a reactive compensation system, which consists of the fixed condenser and TCR. In order to prevent negative effects of parallel-resonance on EAST experiment and power net safety, the low-frequency resonance between the reactive compensation system and distributed inductance of the 10kV grid is analyzed, which shows that the low-frequency resonance point varies from 2.04 to 2.24 with the variance of TCR, and the 2nd harmonic current of EAST power supply will meet up to the national standard after amplified. The simulation on the entire system with MATLAB and PSCAD verifies the results above.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
2012年第3期246-249,共4页
Nuclear Fusion and Plasma Physics
关键词
无功补偿系统
低频谐振
谐波电流放大
Reactive compensation system
Low-frequency resonance
Harmonic current amplification
