Abstract
With the continuous development of Energy Internet, the power systems and heat systems are beginning to couple and interact. Since the heat system model is more complex and difficult to solve, in order to make the operation of combined system safer, more economical and more reliable, the calculation problem of optimal power flow(OPF) is worth studying. In this paper, to solve the OPF calculation problem of combined electricity-heat power system, an OPF model based on hydraulic model and thermal model of heat system, and DC power flow model of power system was established, and an OPF calculation method based on Alternating Direction Method of Multipliers(ADMM) was proposed to solve the model under the distributed framework. Finally, the correctness, good convergence and strong robustness of this method were proved by comparing with the results of the centralized algorithm and observing its solution process.
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