Coordination and optimization control method for multi-energy complement comprehensive energy system

Abstract

The invention discloses a coordination and optimization control method for a multi-energy complement comprehensive energy system, optimization control for comprehensive energy system cooling heating and power energy flow is realized through a hierarchical regulatory mechanism, wherein a scheduling optimization layer serves operation cost minimization as a target, according to system operation constraint conditions, cooling heating and power load requirements are combined to perform current plan optimization, according to the current load plan obtained by the scheduling optimization layer, a coordination control layer combines current operation condition of the system to obtain a real-time cooling heating and power load instruction, and the coordination control layer transmits the instruction to an automatic control system of equipment relative to the comprehensive energy system through a real-time control layer. According to the invention, coordination dispatching and control of the comprehensive energy system in current and real time can be realized, negative influences for system optimization caused by energy demand uncertainty and load prediction error are eliminated, economic operation of the comprehensive energy system is realized, so that energy utilization rate of the system is improved.

Description

technical field [0001] The invention belongs to the field of energy operation and control, and mainly relates to a coordinated optimization control method for a multi-energy complementary comprehensive energy system. Background technique [0002] In traditional energy systems, cold, heat, electricity, and gas are often designed, operated, and controlled independently of each other, and the main body of different energy supply and energy consumption systems cannot be coordinated, coordinated, and optimized as a whole, resulting in low overall energy utilization. . The multi-energy complementary comprehensive energy system refers to the organic coordination and optimization of the production, transmission, conversion, storage and consumption of cold, heat, electricity and gas in the process of planning, construction and operation. The integrated system of energy production, supply and marketing, on the one hand, realizes the cascade utilization of energy and improves the leve...

AI Technical Summary

Problems solved by technology

[0003] At present, research on multi-energy complementary integrated energy systems at home and abroad is mostly focused on the macro level, such as system planning, functional architecture, technical form, etc. Some scholars refer to the control theory of micro-grids and the dispatching theory of large-scale power grids to carry out the optimization of integrated energy systems Run the research, but mainly only study the coupling of two kinds of energy and use a consistent optimization period. The optimization method is relatively consistent with the traditional method, and the characteristics of multi-energy flow and multi-time scale are not fully reflected. At the same time, there are few reports on the real-time coordination of multi-energy flow The study of control cannot solve the impact of day-ahead scheduling due to load forecast errors

Images