Multi-time-scale coordinated scheduling method for electric heating combined system

Abstract

The invention discloses a multi-time-scale coordinated scheduling method for an electric heating combined system, and belongs to the field of electricity. The method comprises load resource classification; establishment of multi-time-scale coordinated scheduling framework; and multi-time-scale coordinated scheduling modeling. The method is scientific and reasonable, is high in applicability, is good in effect, promotes the wind power consumption of the system, and improves the operation economy of the system.

Description

technical field [0001] The invention belongs to the electrical field, and in particular relates to a multi-time-scale coordinated scheduling method for a combined electric-heat system considering multi-type demand responses, so as to solve the problem of system wind abandonment caused by wind-heat conflicts in northern my country. Background technique [0002] With the depletion of fossil energy and the prominent environmental problems that have emerged, the development and utilization of renewable energy has attracted much attention. As of the end of June 2019, the cumulative installed capacity of wind power in my country reached 193 million kilowatts, of which the newly installed capacity in the first half of 2019 reached 9.09 million kilowatts. However, in the rapid development of wind power, the problem of wind power consumption is particularly prominent. According to statistics from the National Energy Administration, the national average wind power utilization hours i...

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Problems solved by technology

Moreover, the northern region has a high demand for heating, and the combined heat and power unit operates in the model of "heating to determine electricity", and there is a contradiction between the thermoelectric coupling relationship and the grid connection of new energy, which makes the already insufficient peak-shaving capacity even worse. Stretched

[0004] In order to solve the contradiction between wind power and heat-supply units, it is possible to decouple the constraints of “heat-based electricity” for combined heat and power units by configuring electric boilers and heat storage devices. Although existing research involves electric boilers and corresponding heat storage devices, At the same time, the scheduling and operation technology of thermoelectric devices is introduced to solve the contradiction between wind and heat, but it does not consider the load-side resources participating in the scheduling of thermoelectric systems, which lacks flexibility.

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