Solar assisted home energy management method capable of considering various uncertain factors under real-time electricity price environment

Abstract

The invention discloses a solar assisted home energy management method capable of considering various uncertain factors under a real-time electricity price environment. The method comprises the following steps: firstly, equally dividing an energy dispatching cycle into a plurality of time periods used for simulating real-time electricity price, and on the basis, constructing a solar assisted home energy utilization system model; secondly, considering user comfort level preference, and determining the optimization target and the constraint condition of system energy management on the premise of guaranteeing that the user comfort level is met; thirdly, constructing a real-time electricity price model, a solar radiation model and an outdoor temperature model capable of considering uncertainty, and adopting a Monte Carlo simulation method to establish a large-scale random scene which embodies the uncertainty; and finally, adopting a scene reduction technology to eliminate a low-probability scene and a scene with an equivalent clustering probability, and for each scene, adopting a two-stage stochastic programming method to carry out rolling solving on the electricity utilization optimization problem of each time period in the scene. The method is suitable for the energy management of the home energy utilization system under the real-time electricity price environment.

Description

technical field [0001] The invention belongs to the technical field of electric power systems, and relates to a solar energy-assisted household energy management method in consideration of various uncertain factors in a real-time electricity price environment. Background technique [0002] The energy management of household equipment has become an important research hotspot in the past few years, and its research work is mainly based on mathematical modeling and method solving. [0003] Most of the work has studied the load control problem under the fixed electricity price model. The fixed electricity price means that the power supply unit has formulated the threshold value of electricity usage in different periods, and communicated the value to the end user to help the user realize load scheduling. The end user side is based on the prior definition. Therefore, the uncertainty of real-time electricity prices, the impact of outdoor temperature on the heating part of the energ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing energy management method for household equipment cannot reduce the cost of electricity

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