Thermoelectric decoupling system and method for cogeneration unit

The invention provides a thermoelectric decoupling system and method for a cogeneration unit, and relates to the technical field of thermal power industry, the thermoelectric decoupling system comprises the cogeneration unit, a timing assembly, a regulation and control assembly and an emergency system, the cogeneration unit is used for connecting a heat supply network system and a power grid system, and the heat supply network system is provided with multiple groups of heat supply pipelines; time period division standards of power grid power utilization peak in four seasons are stored in the timing assembly; the regulation and control assembly is used for dividing standards according to the time periods of the timing assembly; heat inertia of a heat supply pipeline is used for storing and releasing energy, the heat supply steam extraction amount of the cogeneration unit is adjusted according to the power grid demand time period, the heat supply steam extraction amount of the unit is increased when the power g