Household cogeneration device capacity configuring method based on cost optimization

The invention discloses a household cogeneration device capacity configuring method based on cost optimization, and relates to the technical field of energy internet. According to the invention, the method includes the following steps: using the genetic algorithm to optimize daily energy consumption cost of a household cogeneration device under isogradient capacity; comparing the results from the previous step, obtaining the interval where the capacity of the cogeneration device on the basis of cost optimization belongs to; within the interval, further using the genetic algorithm to optimize daily energy consumption cost of the household cogeneration device under isogradient capacity; and comparing the result from the previous step, obtaining the capacity of the cogeneration device based on cost optimization. According to the invention, the method is based on cost optimization, takes restraining conditions of electric energy and thermal energy into consideration, and uses the generic algorithm to resolve the