An optimizing control for district heating and cooling plant

We present an optimizing control method for electric district heating and cooling (DHC) plants. The purpose of the method is to minimize the operating cost of the plants. The optimization models are constructed by input-output properties of the components into mixed 0-1 linear programming problem. The advanced feature of the method is to be able to handle: 1) double-bundle heat pumps, 2) thermal storage tanks, and 3) peak-cut strategy. The numerical example shows that the optimization result based on the method gives appropriate schedule for DHC plant operation