Gas-electric coupling comprehensive energy system planning method considering elastic scheduling strategy

Abstract

The invention discloses a gas-electric coupling comprehensive energy system planning method considering an elastic scheduling strategy. The method comprises the following steps: inputting the structure and equipment parameters of a gas-electric coupling comprehensive energy system according to the structure of the gas-electric coupling comprehensive energy system; establishing gas-electric coupling comprehensive energy system equipment operation constraints of the cooling typical day and the heating typical day; establishing a multi-stage optimization scheduling model oriented to elastic operation; establishing an optimization model based on a genetic algorithm; and carrying out interactive solution on the optimal configuration layer multi-stage optimal scheduling model and the operation optimization layer optimization model and outputting a solution result, wherein the solution result comprises an equipment configuration scheme and an optimal scheduling plan. According to the invention, the complementary coordination effect of the electric drive equipment and the gas drive equipment and the response capability of the energy storage device are fully considered; and a gas-electric coupling comprehensive energy system double-layer planning and design model considering an elastic scheduling strategy is established, the upper layer is evolved and optimized by adopting a genetic algorithm, and a related mathematical solver is called for solving the lower layer to obtain a system planning and design scheme and an optimal scheduling planGas-gas scheduling strategy considering elastic scheduling strategy Electrical coupling comprehensive energy system planning method: gas-gas coupling comprehensive energy system planning is carried out according to gas-gas Electrical coupling integrated energy system structure and input gas- The structure and equipment parameters of the comprehensive energy system are electrically coupled; establishment of gas-heating typical day and cooling typical day Equipment operation constraint of the integrated energy system is electrically coupled; establishing a multi-stage optimization scheduling model oriented to elastic operation; establishing an optimization model based on a genetic algorithm; and carrying out interactive solution on the multi-stage optimization scheduling model of the optimization configuration layer and the optimization model of the operation optimization layer, and outputting a solution result which comprises an equipment configuration scheme and an optimal scheduling plan. Complementary coordination effect of electric driving equipment and gas driving equipment and response capability of an energy storage device are fully considered, and a gas-gas scheduling strategy considering an elastic scheduling strategy is established; and a double-layer planning design model of the integrated energy system is electrically coupled, an upper layer adopts a genetic algorithm to evolve and optimize, a lower layer calls a related mathematical solver to solve, and a system planning design scheme and an optimal scheduling plan are obtained.

Description

technical field [0001] The invention relates to a comprehensive energy system planning method. In particular, it involves a gas-electricity coupling integrated energy system planning method considering flexible scheduling strategies. Background technique [0002] Energy and environmental issues have become the focus of attention of all countries in the world. The development and utilization of renewable energy and the improvement of energy utilization efficiency are the inevitable choices for achieving sustainable development and clean energy alternatives. The gas-electricity coupled integrated energy system includes multiple energy requirements, and different forms of energy such as electricity, heat, and gas are deeply coupled. Through the coordinated operation of multiple energy sources, energy utilization efficiency can be greatly improved. Driven by its own advantages and energy policies, gas-electricity coupled integrated energy systems have developed rapidly. In thi...

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Problems solved by technology

In addition, energy supply failures often occur in gas-electricity coupled integrated energy systems, resulting in load shedding, which seriously affects the normal production and domestic energy consumption of the system; establish a dispatch strategy that can adapt to source-side failures, and develop strategies that can meet the requirements of actual operation. The planning and design method of source-side fault adaptability requirements is of great significance

[0004] At present, the planning and design of gas-electricity coupled integrated energy systems mostly ignore the impact of supply failure at the source end, and carry out economic planning that considers investment costs and operating costs. The resulting planning and design scheme cannot meet the energy demand of important loads when the source end fails.

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