晶闸管投切电容的最佳编码方式与最优投切阈值的数学分析和应用

投切电容的编码方式和投切阈值关系到采用晶闸管投切电容(Thyristor-switched capacitor,TSC)的静止无功补偿装置的补偿效果与经济性.文章从运筹学的角度对电容的最佳编码方式进行了数学分析,验证了二进制编码方式是最佳的,从数列和实际经验出发,得到了电容最优投切阈值的实用计算公式,并根据投切电容的最佳编码方式和最优投切阈值设计了一台TSC型静止无功补偿装置,通过与一般TSC型无功补偿装置的补偿效果进行比较表明该装置的补偿效果更明显,从而验证了本文数学理论分析的正确性.

MATHEMATICAL ANALYSIS AND APPLICATION OF OPTIMUM ENCODING MODE AND OPTIMAL SWITCHING THRESHOLD FOR THYRISTOR-SWITCHED CAPACITORS

The encoding mode of switching capacitors and the switching threshold relate to the economy and the compensation effect of static var compensation (SVC) device in which the capacitors are switched by thyristors. From the viewpoint of opsearch the mathematical analysis on the optimum encoding mode of switching capacitors is carried out and it is verified that the binary encoding mode is the best. Based on the sequence and actual experience, a practical formula to calculate the optimal threshold of switching capacitors is obtained. According to the optimum encoding mode and optimal threshold of switching capacitors a thyristor-switched capacitor (TSC) type of static var compensation device is designed. Comparing the compensation effect of this device with that of common TSC type of compensation device, the comparison results show that this device can provide better compensation effect, thus the correctness of the author's theoretical analysis is verified.