Gas-heat-electricity coupling system SCUC optimal scheduling method and device and storage medium

Abstract

The invention discloses a gas-heat-electricity coupling system SCUC optimal scheduling method and device and a storage medium. The optimal scheduling method comprises the following steps: 1, reading original data of a gas-heat-electricity coupling system; 2, defining a system state decision variable; 3, establishing a quadratic function piecewise linearization model; 4, setting unit operation state parameters, unit climbing, start-stop time constraints and thermal power unit output constraints; 5, setting a natural gas consumption balance constraint, a natural gas unit output constraint and each node flow pressure constraint; 6, setting flow, heat and temperature balance constraints and thermal load and thermal power balance constraints of each node; 7, setting coupling link power balanceand equipment output constraints; 8, establishing an SCUC optimal scheduling model of the gas-heat-electricity coupling system. According to the method, safe operation constraint conditions of a generator set are considered, in addition, a coal-fired generator set and a gas-fired generator set are considered, and the use period of the generator set can be reflected in the result due to the difference of fuel prices.

Description

technical field [0001] The invention relates to the field of optimal dispatching of integrated energy systems, in particular to an optimal dispatching method, device and storage medium of a gas-thermoelectric coupling system SCUC. Background technique [0002] With the rapid development of the social economy and the deepening of the urbanization process, the contradictions between energy consumption and environmental protection, energy infrastructure construction and space limitations have become more and more prominent. Low energy utilization rate and other issues, for this reason, the integrated energy system came into being, which provides an important way for energy upgrading and reform. In the integrated energy system, all kinds of energy equipment are closely coupled to realize the interaction and conversion of multiple energy sources. Through research and calculation to formulate a suitable dispatching operation plan, it can greatly improve energy utilization efficien...

AI Technical Summary

Problems solved by technology

[0003] The main content of the research on the gas-thermoelectric coupling system is multi-energy flow calculation, economic optimal dispatch, optimal power flow, etc. At present, scholars have carried out a lot of research, but there are relatively few studies on the optimization of unit combination with safety constraints.

Images