Microgrid multi-energy joint optimal scheduling method

Abstract

The invention relates to a microgrid multi-energy joint optimal scheduling method. The method includes: step 1, on the basis of force application conditions of energy supply equipment and operating states of energy storage equipment in different scenes, constructing a physical model of a multi-energy system; step 2, establishing unit mathematical models, including a wind power generator model, a photovoltaic power generation model, a micro-gas turbine model, a fuel cell model and an energy storage model, of the microgrid multi-energy system; step 3, in order to realize lowest comprehensive cost in system operation, constructing a microgrid multi-energy optimal scheduling model by taking DG operation constraints, system safety constraints and multi-energy coupling characteristics into comprehensive consideration; step 4, on the basis of reversed order dynamic planning, solving the microgrid multi-energy optimal scheduling model to obtain a microgrid multi-energy joint optimal operatingstrategy. By the microgrid multi-energy joint optimal scheduling method, operating demands in different scenes can be met, electricity-thermal coordinated optimal scheduling schemes are provided for operating of a comprehensive energy microgrid in different scenes, and high integral operating efficiency and high economic benefits are realized.

Description

technical field [0001] The invention relates to a micro-grid multi-energy joint optimal dispatching method, which belongs to the field of micro-grid optimal dispatching devices. Background technique [0002] The microgrid contains various types of distributed renewable energy such as photovoltaics, wind power, energy storage, ground source heat pumps, solar thermal power generation, gas power generation, and biomass power generation. The penetration rate of distributed power sources is high, while new energy sources such as photovoltaics and wind power Large fluctuations and complex network topology bring great challenges to the flexible and controllable dispatching of active distribution networks. Whether various factors can be considered comprehensively, how to reasonably arrange the operation plan of these micro-power sources, to ensure that the micro-grid can meet the load requirements at different time periods, and at the same time realize the high-quality operation of ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a micro-grid multi-energy joint optimal dispatch method, and establish a micro-grid multi-energy joint optimal dispatch Model, the micro-grid multi-energy system can promote energy cascade utilization, reduce pollutant emissions, enhance the economic benefits of the energy supply system, and effectively alleviate the energy shortage and environmental degradation caused by rapid economic development

Images