In order to overcome the disadvantage of the single phase passing zero control in the reactive power compensation device, fuzzy control is put forward in this paper.
针对目前无功补偿装置中采用的单相过零投切方法存在的缺点，本文提出采用模糊控制的方法。
And the technology of auto-zero is used to overcome the offset disadvantage of linear reference and cancel the offset voltage of amplifier.
同时运用自动调零技术，克服了线性基准的失调缺陷，消除了运放的失调电压，提高了输出电压的失调精度。
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