Analysis of Thermal and Electrolytic Coupling Characteristics of Typical Thermal Power Plants in China

In order to improve the flexibility of the thermal power unit, improve the peak regulation and heat supply regulation capacity of the power plant, and promote the consumption of new energy, this paper takes a 350MW unit in China as the research object. 4 kinds of thermo-decoupling technical schemes, such as absorption heat pump and compression heat pump, are calculated to calculate the change of the maximum heat supply and electric load rate of the unit after thermo-decoupling of each scheme. The results show that after decoupling, the maximum heat supply of the units in each scheme can be increased by 174MW, 136.18MW, 168.37MW, and 38MW respectively; under the original maximum heat supply load, the minimum electrical load rate is reduced to 44.29%, 73.29%, 73.70%, and 80.57%. The low-pressure cylinder zero output technology has the best effect, the maximum heat supply of the unit is increased the most, and the electrical load rate is also reduced the most.