Optimal scheduling method of wind power and heat and power cogeneration system based on heat supply network heat storage

A technology for cogeneration and cogeneration units, which is applied in the electric power field and can solve the problems of wind power output fluctuation, affecting grid-connected consumption, etc.

Inactive Publication Date: 2020-08-11
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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Problems solved by technology

[0005] An embodiment of the present invention provides an optimal scheduling method for a wind power and cogeneration system based on heat storage in a heat network to solve the problems caused by wind power output fluctuations in the wind power and cogeneration system based on heat storage in the heat network in the prior art. Technical issues of network consumption

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  • Optimal scheduling method of wind power and heat and power cogeneration system based on heat supply network heat storage
  • Optimal scheduling method of wind power and heat and power cogeneration system based on heat supply network heat storage
  • Optimal scheduling method of wind power and heat and power cogeneration system based on heat supply network heat storage

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Embodiment 1

[0055] figure 1 It is a schematic flow chart of the first embodiment of the present invention to provide an optimal scheduling method for wind power and cogeneration systems based on heat storage in the heat network. , specifically include the following steps:

[0056] S110. Estimate an output power prediction error of the wind farm.

[0057] As wind power is a green energy source supported by national policies, the power generated by wind power and CHP units is given priority to be connected to the grid, and the power grid dispatching center will make full arrangements for the grid-connected power for the next day according to the previous plan of the United Nations. The combined system obtains economic benefits by selling electricity to the grid and supplying heat to users. However, since the output power of wind power is affected by various environmental factors, it is easy to have an impact on the power grid. When the actual output of the joint system deviates from the d...

Embodiment 2

[0095] figure 2 It is a schematic flowchart of the optimal scheduling method for the wind power and heat and power cogeneration system based on heat storage in the heat network provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, adjusting the output of the cogeneration unit in the wind power and cogeneration system of the heat network for heat storage, also includes: The output of the combined heat and power unit in the wind power and combined heat and power cogeneration system of the heat storage network is adjusted according to the constraints of the production unit.

[0096] Correspondingly, the optimal scheduling method of the wind power and cogeneration system based on heat storage in the heat network provided in this embodiment specifically includes:

[0097]S210. Estimate an output power prediction error of the wind farm.

[0098] S220. Using Monte Carlo simulation to gen...

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Abstract

The embodiment of the invention discloses an optimal scheduling method of a wind power and heat and power cogeneration system based on heat supply network heat storage. The method comprises the following steps: estimating an output power prediction error of a wind power plant; generating a wind power plant scene by utilizing Monte Carlo simulation according to the prediction error; and generatingcorresponding wind power according to the wind power plant scene, and adjusting the output of a combined heat and power generation unit in the combined heat and power generation system for the wind power stored in the heat supply network. The output value of the wind power and heat and power cogeneration system based on heat supply network heat storage on the power grid tends to be consistent withthe reported output value, waste of wind power energy and fluctuation of the power grid are reduced, and the efficiency of the wind power and heat and power cogeneration system based on heat supply network heat storage is improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an optimal scheduling method of a wind power and heat and power cogeneration system based on heat storage in a heat network. Background technique [0002] With the continuous aggravation of energy and environmental problems, wind energy, as a common renewable energy, has gradually developed rapidly. As of 2018, my country's installed capacity of wind power has reached 210 million kilowatts, but at the same time it has also brought serious problems of wind power grid-connected consumption. The random and intermittent characteristics of wind power make the system's demand for reserve capacity increase significantly after large-scale wind power is connected to the grid. How to deal with the uncertainty of wind power and make it economically safe is one of the important challenges we are currently facing. [0003] The utilization of wind power objectively requires a certain...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46H02J3/00F24D11/00
CPCF24D11/001F24D2200/13H02J3/008H02J3/381H02J3/466H02J2203/10H02J2203/20H02J2300/28Y02E10/76
Inventor 倪筹帷赵波张雪松李志浩林达
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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