Dynamic equivalent circuit of combined heat and power system, and working method thereof

A simulation method of a combined heat and power system, comprising:

• building a dynamic equivalent circuit for the combined heat and power system, comprising:
• a controlled source used to represent a thermoelectric coupling source, equivalent inductance used to represent a delay of a heat transmission pipeline, equivalent resistance used to represent a heat load and a heat loss of the heat transmission pipeline, and equivalent capacitance used to represent a heat storage water tank;
• performing a setting step, configured for setting
• parameters of the controlled source, the equivalent inductance, equivalent resistance and the equivalent capacitance are set to a predetermined value set based on designed physical parameter values of the combined heat and power system;
• running the dynamic equivalent circuit;
• obtaining voltage values and current values at a plurality of nodes of the dynamic equivalent circuit;
• adjusting the designed physical parameter values based on the obtained voltage values and current values at the plurality of nodes;
• and
• proceeding to the setting step for repeating, until the obtained voltage values and current values at the plurality of nodes meet a predetermined condition, so as to obtain final physical parameter values,
• wherein a target combined heat and power system is established based on the final physical parameter values.