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Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output

A technology of combined heat and power generation units and wind power output, applied in the field of comprehensive utilization of clean energy, can solve problems such as energy abandonment, imperfection, and expansion of system peak-to-valley differences

Inactive Publication Date: 2014-03-12
XI AN JIAOTONG UNIV
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Problems solved by technology

The anti-peak-shaving characteristics of wind power generation will further expand the peak-to-valley difference of the system, increase the difficulty of power grid dispatching, and have a series of impacts on power grid dispatching operation, voltage control, and power grid peak regulation.
Due to the imperfection of relevant research, the phenomenon of energy abandonment is serious

Method used

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  • Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output
  • Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output
  • Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output

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Embodiment Construction

[0092] The back-pressure cogeneration unit and wind power output refrigeration dispatching system and method provided by the present invention, on the supply side, the power is jointly provided by the cogeneration unit and the wind power generation unit, and the hot water supply of the cogeneration unit is centralized heat absorption refrigeration It is used for cooling and transporting cold water. The user uses the cooling fan coil to consume cold water to provide cold air and the air conditioner consumes electricity for cooling. The cooling water output is compensated by power consumption cooling, so that compared with the fluctuation of wind power generation, the user's power load also has room for adjustment. Power consumption cooling can not only compensate for the shortage of cold water cooling, but also increase the load during low power periods, and The reduction in power generation for cooling and hot water will also be reduced. In the compensation of the two cooling ...

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Abstract

The invention discloses a refrigeration scheduling system and method by adopting a back-pressure type cogeneration unit and wind-power output. The method comprises the following steps of: by combined control of the back-pressure type cogeneration unit and refrigerating load, the equivalent generation of the wind power is adjusted to be consistent with the actual need of the system, so that the pressure of grid paralleling is reduced; a user adopts two modes for refrigeration, namely, a centralized heat-absorption type refrigerator and an air conditioner for power consumption; and under the condition that the power supply and the refrigeration supply are met, the hot-water flow supplied to the centralized heat-absorption type refrigerator is reduced and is compensated by consumption of power and refrigeration, the power generation output is also changed correspondingly, and the supply is met according to the change of power consumption load and the matching of the wind power generation. The change of the cogeneration output and the power consumption load condition of the user is adjusted by fluctuation of wind power generation, so that the matching between the equivalent output of the wind power generation at the user side and the wind power output needed by the system is realized.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of clean energy, and relates to a back pressure cogeneration unit and wind power output refrigeration scheduling system and method. Background technique [0002] Renewable energy has the characteristics of green and clean, and has developed rapidly in recent years. However, taking wind power generation as an example, while wind power generation provides clean and low-carbon energy, the large-scale grid connection of wind farms also has a negative impact on the safe and economic operation of the power grid. After the large-scale wind farm is connected to the grid, its output fluctuates greatly, and the power fluctuation is often opposite to the fluctuation trend of the electricity load. The anti-peak-shaving characteristics of wind power generation will further expand the peak-to-valley difference of the system, increase the difficulty of power grid dispatching, and have a series...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418F03D9/00F01D15/10F25B15/00F25B49/04F24F11/02G06F19/00
CPCY02B30/62Y02E10/72Y02A30/27
Inventor 龙虹毓吴锴杨玉龙
Owner XI AN JIAOTONG UNIV
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