High-energy-consumption park and power grid alternative parallel collaborative optimization scheduling method

Abstract

A high-energy-consumption park and power grid alternative parallel collaborative optimization scheduling method belongs to the technical field of integrated energy system operation and control, and comprises the following steps: (1) establishing output models and load prediction models of a conventional generator set, a distributed power supply, energy storage and other equipment; (2) carrying out day-ahead prediction on park side electric and thermal loads, photovoltaic output and a power grid side wind generating set; (3) establishing a park integrated energy system group and power grid decomposition collaborative optimization framework; (4) establishing a high-energy-consumption park integrated energy system and power grid parallel decomposition collaborative optimization scheduling model considering network security constraints; (5) establishing a solving process based on a parallel alternating direction multiplier method; and (6) establishing a high-energy-consumption park integrated energy system and power grid parallel decomposition collaborative optimization scheduling Matlab platform solving interaction process. The invention provides a technical basis and a practical method for stable operation and large-scale wind power consumption of the park comprehensive energy system group and the power grid.

Description

technical field [0001] The invention belongs to the technical field of power grid operation, and in particular relates to a high energy-consuming park and a power grid alternately parallel collaborative optimization scheduling method. Background technique [0002] The park-level comprehensive energy system consists of gas turbine units, distributed power supply equipment, auxiliary energy supply equipment and energy storage equipment. The gas turbine units generate electricity by burning natural gas, and the waste heat is collected by waste heat boilers. The waste heat can be refrigerated by absorption refrigerators to supply cooling loads. Use, heating through the heat exchange device can be supplied to the heat load, and the cold storage device, heat storage device and power storage device in the combined cooling, heating and power system can store the remaining cold energy, heat energy and electric energy in the system. By making full use of the waste heat generated by th...

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Problems solved by technology

[0005] At present, there are two issues to be further explored: ①Although the industrial parks and the power grid are modeled with different stakeholders, when solving the problem, the economic efficiency of the power grid is firstly coordinated, and then the multi-park integrated energy system is Economic efficiency is the goal of secondary coordination. This method cannot realize the parallel solution of multiple parks and power grids; ②The stakeholders considered in the MCIES multi-agent decentralized coordination scheduling are not comprehensive, and the distribution of benefits between power grids and parks is not considered

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