Abstract: The wind curtailment absorption capacity of the low-pressure cylinder zero-output coupled bypass wind curtailment absorption scheme is further enhanced. The article employs commercial software to establish a unit variable operating condition calculation model and analyzes the wind curtailment absorption capacity after the coupling of the two technical schemes. The analysis results indicate that the increase in the capacities of high and low bypasses leads to a reduction in the unit's minimum power generation load, and the wind curtailment capacity, heating capacity, and peak shaving capacity ratio all increase. The thermal efficiency of the unit gradually rises with the increase in the superheated steam flow of the boiler, but the upward trend gradually slows down; the power generation coal consumption rate gradually decreases and the downward trend also gradually slows down. Additionally, as the peak shaving depth increases, the coal consumption of the unit significantly increases, and its increase is roughly equivalent to that in the extraction-condensing condition.