Source-load-storage coordinated scheduling method for improving new energy consumption

Abstract

The invention discloses a source-load-storage coordinated scheduling method for improving new energy consumption. The method comprises the steps of S1, aggregating a thermal power plant, a new energypower plant, user loads and energy storage equipment into a source-load-storage scheduling system, and obtaining a new energy output curve, a heat utilization load curve and a power utilization load curve of the system; S2, establishing a source-load-storage coordinated scheduling model with the objective of maximizing new energy consumption quantity and minimizing the system operation cost; and S3, solving the source-load-storage coordinated scheduling model through utilization of improved multi-objective particle swarm optimization, and carrying out computing to obtain the source-load-storage coordinated scheduling method. The method has the advantages of simple realization method and flexible application. Schedulable resources such as power equipment, the user loads and the energy storage equipment in the system can be utilized rationally. The new energy consumption is facilitated, and moreover, operation cost of the system is reduced.

Description

technical field [0001] The invention relates to the technical field of new energy power systems, in particular to a source-load-storage coordinated scheduling method for improving new energy consumption. Background technique [0002] In recent years, photovoltaic power generation and wind power generation in northern my country have developed rapidly, and the grid connection of a large number of new energy sources has alleviated the energy crisis to a certain extent. However, in the winter heating period, in order to meet the heat load demand, a large number of cogeneration units work in the mode of "heating fixed power". Ability is very limited. This thermoelectric coupling relationship makes the power system's peak-shaving capability insufficient. The system usually needs to discard part of the new energy or remove part of the load to ensure stable operation, resulting in a large amount of energy waste and reduced power supply reliability. [0003] The schedulable resour...

AI Technical Summary

Problems solved by technology

[0004] However, in the current methods for improving the consumption of new energy in the power system, it is usually only to add peak-shaving equipment on the power supply side to carry out "thermoelectric decoupling", and to promote the consumption of new energy by breaking through the constraints of thermoelectric coupling, but it is limited by equipment investment. Restricted by factors such as equipment and equipment climbing, the system is not flexible enough to fully absorb new energy

Alternatively, the flexible electricity and thermal loads can be regulated only from the load side, so that they can track the output of new energy sources and carry out "peak-shaving and valley-filling". Although this can increase the flexibility of the system's peak-shaving, it is limited by user satisfaction and high scheduling costs. limit, its adjustment range is limited

Images