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Adjusting method and adjusting device for power grid transmission power in "machine-following stack" mode

An adjustment method and power transmission technology, which is applied in the field of power stations and can solve the problems of "machine-to-heap" that cannot quickly adjust power

Active Publication Date: 2022-05-27
HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention lies in the fact that the operation mode of "machine with stack" in the prior art cannot quickly adjust the power to meet the power requirements of the power grid, thereby providing a "machine with stack" mode grid transmission power. Adjustment method and adjustment device

Method used

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  • Adjusting method and adjusting device for power grid transmission power in "machine-following stack" mode
  • Adjusting method and adjusting device for power grid transmission power in "machine-following stack" mode
  • Adjusting method and adjusting device for power grid transmission power in "machine-following stack" mode

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Embodiment 1

[0030] like figure 1 As shown, an embodiment of the present invention provides a method for adjusting power grid transmission power in a "machine-to-stack" mode, and the adjusting method includes:

[0031] S1. Obtain the current frequency of the power grid;

[0032] In the embodiment of the present invention, it is necessary to monitor the actual frequency of the power grid in real time through a monitoring system such as a generator set to determine whether the actual frequency of the power grid fluctuates. The actual frequency of the grid obtained at the current moment is the current frequency.

[0033] S2. When the current frequency is different from the preset frequency of the power grid, obtain a frequency difference between the current frequency and the preset frequency; optionally, the preset frequency is 50 Hz.

[0034] Usually, the preset frequency of the power grid is 50HZ. Therefore, when the frequency of the power grid fluctuates, the current frequency and the pr...

Embodiment 2

[0064] The embodiment of the present invention also provides a device for regulating the transmission power of a power grid in a "machine-to-stack" mode, the regulating device comprising:

[0065] The first obtaining module is used to obtain the current frequency of the power grid; for details, please refer to step S1 of the above embodiment, which will not be repeated here.

[0066] The second acquisition module is configured to acquire the frequency difference between the current frequency and the preset frequency when the current frequency is different from the preset frequency of the power grid; for details, please refer to step S2 in the above embodiment , and will not be repeated here.

[0067] The processing module is configured to determine the pressure adjustment amount of the main steam of the steam turbine according to the frequency difference; for details, please refer to step S3 of the above embodiment, and details are not repeated here.

[0068] An adjustment mo...

Embodiment 3

[0071] An embodiment of the present invention further provides an electronic device, the electronic device includes: a memory and a processor, the memory and the processor are connected in communication with each other, the memory stores computer instructions, and the processor passes The computer instructions are executed to execute the method for adjusting the transmission power of a power grid in a "machine-to-stack" mode described in any of the foregoing embodiments.

[0072] The electronic device may further include: an input device and an output device.

[0073] The processor, the memory, the input device, and the output device may be connected through a bus or in other manners. In this embodiment of the present invention, the connection through a bus is used as an example.

[0074] The processor may be a central processing unit (Central Processing Unit, CPU). The processor may also be other general-purpose processors, digital signal processors (Digital Signal Processor...

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Abstract

The invention discloses a method and device for adjusting the transmission power of a power grid in a "machine-to-stack" mode. The adjustment method includes: obtaining the current frequency of the power grid; when the current frequency is different from the preset frequency of the power grid, obtaining The frequency difference between the current frequency and the preset frequency; determine the pressure adjustment amount of the main steam of the steam turbine and the power adjustment amount of the reactor according to the frequency difference; adjust the adjustment valve of the steam turbine based on the pressure adjustment amount intake air flow, and adjusting the reactor power based on the power adjustment amount. With this setting, when the operating mode of the nuclear power plant is "machine-to-reactor", the main steam pressure of the steam turbine can be directly changed by converting the frequency difference into a pressure adjustment value, and then directly acting on the pressure controller. Realize rapid response to grid power demand brought by grid frequency changes.

Description

technical field [0001] The invention relates to the technical field of power stations, in particular to a method and a device for regulating the transmission power of a power grid in a "machine-to-stack" mode. Background technique [0002] At present, different power grids have different power supply requirements. Usually, it is how much power the power grid needs, and the power station will generate the corresponding power generation according to the power grid demand. Because the generator of the power station is directly connected to the power grid, in order to ensure that the power station generates the corresponding power generation, and the power generation amount corresponds to the power generated by the generator, the generator needs to be controlled at the corresponding power. [0003] In the prior art, when nuclear power is used to generate electricity, the operation mode of the nuclear power plant is usually the "stack-to-machine" mode, that is, the steam turbine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/24
CPCH02J3/466H02J3/241
Inventor 陈振民刘猛刘世杰高红
Owner HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD
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