容量效益裕度(CBM)的评估是根据预先设定的某一发电可靠性水平多次计算可靠性，进行迭代优化。
目前在求解可用输电容量(atc)时，容量效益裕度(CBM)的评估是根据预先设定的某一发电可靠性水平多次计算可靠性，进行迭代优化。
Capacity benefit margin (CBM) is evaluated and optimized via an iterative method based on a presumed generation reliability level when the available transfer capability (ATC) is calculated.
传统的无功优化通常考虑的仅仅是提高电网的电压质量和降低网损，当系统的传输容量有足够的裕度时，这种只考虑经济效益和基本运行约束的做法是适当的。
The general reactive power optimization is only to reduce the loss of the system and improve the quality of voltage, which is suitable when system has enough power capability.
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