Optimization design method for operation mode of electric-thermal-hydrogen comprehensive energy system

Abstract

The invention provides an electric-thermal-hydrogen comprehensive energy system operation mode optimization design method, which comprises the following steps of: 1, acquiring electric-thermal-hydrogen isolated island direct current micro-grid information at the current moment, and 2, judging the redundant state of each energy storage unit; thirdly, the output in the first step and the output in the second step serve as input, the maximum value and the minimum value of the fan mode switching boundary are calculated, and the fan unit control mode at the t + 1 moment is judged; and 4, setting the operation mode and the optimal output of each unit of the system. According to the method, the operation mode design of the electric heating combined island micro-grid with renewable energy access in a strong uncertainty scene can be efficiently provided, the control mode and the corresponding switching condition of each unit in the system can be quickly and accurately judged, and the optimal output of each unit in the system is solved by optimizing the objective function; the safe and stable operation of the system in a strong uncertainty scene is guaranteed, the operation cost of the system is reduced, and the economical efficiency and the energy utilization efficiency of electric-heat combined comprehensive energy are improved.

Description

technical field [0001] The invention belongs to the field of coupling a renewable energy system and an energy storage system, and in particular relates to an operation mode optimization design method for an electric-thermal-hydrogen comprehensive energy system. Background technique [0002] In recent years, with the rapid growth of distributed renewable energy in my country, large-scale distributed renewable energy has been connected to the power grid. However, due to the characteristics of renewable energy such as strong uncertainty and intermittent fluctuations, it is difficult for the system to be flexibly controlled and secure. Running brings new challenges. The deep coupling of hydrogen energy with renewable energy and energy storage systems can reduce the cost of hydrogen production and at the same time realize the complementary advantages of electricity-hydrogen energy storage. In addition, considering the characteristics of convenient thermal energy storage and diffi...

AI Technical Summary

Problems solved by technology

[0003] However, due to the fluctuation of renewable energy and the uncertainty of heat load demand, it brings great challenges to the stable and safe operation of the island system

Unreasonable operation mode design not only reduces the overall economy and energy utilization efficiency of the system, but even affects the safe and stable operation of the system

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