Virtual power plant thermoelectric combined economic dispatching method containing heat utilization comprehensive satisfaction

Abstract

The invention discloses a virtual power plant thermoelectric combined economic dispatching method containing heat utilization comprehensive satisfaction. The method comprises the specific steps ofS1,enabling a cogeneration unit and a wind power plant to be aggregated into a thermal-electric virtual power plant, carrying out the demand response management of a thermal load, and introducing an excitation type thermal load demand response, S2, constructing a heat utilization comprehensive satisfaction model for weighted consideration of the heat utilization mode satisfaction and the heat utilization cost satisfaction, and constraining the heat load demand response through the model, and S3, constructing a virtual power plant thermoelectric combined economic dispatching model containing heatutilization comprehensive satisfaction by taking the maximum net income of the virtual power plant as a target function, and formulating a dispatching scheme according to the model. The method is simple in implementation process, can effectively promote wind power consumption by implementing the excitation type thermal load demand response on the basis of meeting the heat utilization of a user, and meanwhile, improves the flexibility and economy of virtual power plant scheduling.

Description

technical field [0001] The invention relates to a combined heat and power economic scheduling method of a virtual power plant, in particular to a combined heat and power economic scheduling method of a virtual power plant including comprehensive satisfaction with heat consumption. Background technique [0002] Wind energy is a clean, cheap, and extremely abundant renewable energy. It will not cause environmental pollution problems during its utilization, and its reserves will not decrease with its own conversion and utilization. As a kind of new energy power generation, wind power has the advantages of green, low-carbon, clean and efficient power generation, and has been favored by countries all over the world, including my country. However, wind power has great randomness and instability, especially in the "Three North" areas where wind resources are abundant, and the phenomenon of wind abandonment is more serious. More than 60% of the generators in this area are combined h...

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Problems solved by technology

[0004] Existing research mainly focuses on introducing auxiliary facilities such as new heat sources and energy storage as flexible and adjustable resources to relieve the strong coupling relationship between CHP unit heat and electricity. Although this method has a positive effect on promoting wind power consumption, it does not consider auxiliary facilities. Additional investment costs brought about by the introduction of facilities

Moreover, most of the traditional research methods only consider the maximization of the virtual power plant (VPP)'s own revenue, fail to take into account the heat satisfaction of heat users, and ignore the interaction with users.

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