Multi-heat source coordinated dispatching strategy making method for improving wind power absorption capability

Abstract

The invention provides a multi-heat source coordinated dispatching strategy making method for improving wind power absorption capability, and relates to the multi-heat source coordinated dispatching strategy making method for improving the wind power absorption capability. The multi-heat source coordinated dispatching strategy making method is used for solving the problems that the difference between an actual system net load and a forecast value is relatively large and wind curtailment is aggravated at a power valley load period due to limitation of a wind speed and load forecast technology in the prior art. The multi-heat source coordinated dispatching strategy making method comprises the steps of 1, acquiring technological parameters of an electric boiler, heat energy and cogeneration unit and a primary heat supply network in an electricity-heat combination system; 2, acquiring running cost parameters of the electric boiler, heat energy and cogeneration unit and the primary heat supply network, determining dispatching cost of the electric boiler, heat energy and cogeneration unit and the primary heat supply network which participate in coordinated dispatching; and 3, building a two-stage multi-heat source coordinated dispatching optimization model by taking highest wind power absorption quantity and minimum total coordinated dispatching cost as target functions. The multi-heat source coordinated dispatching strategy making method is used in technical fields of new energy and high-efficiency energy saving.

Description

technical field [0001] The invention relates to the technical field of new energy and high-efficiency energy-saving, and in particular to a method for formulating a coordinated scheduling strategy for multi-heat sources including a primary heating network, an electric boiler, and heat storage for improving wind power absorptive capacity. Background technique [0002] In the heating season in the north, the valley load period is a key period to ensure system frequency stability and power balance. However, with the large-scale access of intermittent energy represented by wind power to the power grid, its fluctuation, intermittent and anti-peaking characteristics will increase the demand for the power grid's ability to participate in peaking, which is manifested in the operation of traditional units in the non-economic operating range , Insufficient system backup, deep peak shaving of units and increased shutdown frequency, large-capacity wind abandonment for a long time, etc. ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the limitation of wind speed and power load forecasting technology in the prior art, the actual system net load has a large deviation compared with the predicted value, and the large net load forecast error deteriorates the ability of the power system to accommodate wind power , and this deterioration exacerbates the problem of wind curtailment during the peak load period of electricity, and proposes a multi-heat source coordinated scheduling strategy formulation method to improve wind power consumption capacity

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