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

A technology for coordinated scheduling and wind power accommodation, applied in wind power generation, energy storage, and AC networks with energy trade/energy transmission authority, etc., can solve the problems of aggravated wind curtailment, net load forecast error deterioration of accommodation capacity, and net load deviation Major problems, to achieve the effect of ensuring economy

Active Publication Date: 2017-08-11
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

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specific Embodiment approach 1

[0029] Specific implementation mode 1: A multi-heat source coordinated scheduling strategy formulation method for improving wind power consumption capacity includes the following steps:

[0030] Step 1: Obtain the technical parameters of the electric boiler, heat storage, combined heat and power unit and primary heating network in the electric-heat combined system, and formulate the electric boiler, heat storage, combined heat and power unit and primary heating network according to their technical parameters and technical characteristics. The regulation method of the heat network; the technical parameters include the rated power of the electric boiler, heat storage and combined heat and power unit, the heat storage capacity of the heat storage, etc.;

[0031] Step 2: Obtain the operating cost parameters of the electric boiler, thermal storage, combined heat and power unit, and primary heating network, and determine the scheduling cost of the electric boiler, thermal storage, co...

specific Embodiment approach 2

[0034] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in the step 1, the technical parameters of the electric boiler, heat storage, combined heat and power unit and the primary heating network in the electric-heat combined system are obtained, and according to the Technical parameters The specific process of formulating the control mode of electric boilers, heat storage, combined heat and power units and primary heating network is as follows:

[0035] (1) if figure 1 As shown, the technical characteristics and control methods of the electric boiler: the electric boiler presets the operating power according to the ultra-short-term prediction of the grid load level and the wind power output power, and tracks the relationship between the measured electric load and wind power and the predicted value of the electric load and wind power in real time. According to the residual heat state of each electric boiler corresponding to the hea...

specific Embodiment approach 3

[0040] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in the step 2, the operating cost parameters of the electric boiler, heat storage, combined heat and power unit and the primary heating network are obtained, and the electric boiler, heat The specific process of dispatching costs for storage, combined heat and power units and primary heating network participating in coordinated dispatching is as follows:

[0041] According to the operating cost parameters of electric boilers, heat storage, combined heat and power units and the primary heating network, the scheduling costs for participating in coordinated scheduling are determined;

[0042] (1): Electric boiler scheduling cost: because electric boiler heating heat medium electricity mainly uses excess wind power, therefore, it is determined by the heating energy cost:

[0043]

[0044] in, is the operating cost of electric boiler i at time t, and the unit is ten thousand yuan; is th...

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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. ...

Claims

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Application Information

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IPC IPC(8): H02J3/28H02J3/38
CPCH02J3/003H02J3/008H02J3/28H02J3/386H02J2203/20Y02A30/00Y02E10/76Y02E70/30
Inventor 荣爽孙勇刘志君李振元李卫星傅吉悦李宝聚
Owner HARBIN INST OF TECH
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