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Method for optimizing primary frequency modulation response time

A response time, condenser technology, applied in the direction of reducing/preventing power oscillation, etc., can solve problems such as blanking, achieve the effects of improving vacuum, reducing the response time of primary frequency modulation, and increasing the rate of load increase

Active Publication Date: 2020-03-31
中国大唐集团科学技术研究总院有限公司
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AI Technical Summary

Problems solved by technology

At present, the research on meeting the requirements of primary frequency regulation by improving the vacuum of the condenser is still basically blank

Method used

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  • Method for optimizing primary frequency modulation response time

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] ginseng figure 1 As shown, this embodiment provides a method for optimizing the response time of a frequency modulation, including:

[0019] (1) Increase the frequency modulation condenser water injection control logic; (2) Increase the condenser liquid level control logic.

[0020] Furthermore, a logic interface for primary frequency modulation condenser water injection control is added to the DSC process control configuration. After the DCS process control configuration receives the grid frequency change signal, it inputs the slip signal to the original primary frequency modulation system, and at the same time converts the The difference signal is input to the p...

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Abstract

The invention relates to a method for optimizing primary frequency modulation response time. The method comprises the steps that a primary frequency modulation condenser water spraying control logic interface is arranged in a DSC process control configuration, and after the DCS process control configuration receives a power grid frequency change signal, a slip signal is input into a primary frequency modulation system, and meanwhile the slip signal is input into primary frequency modulation condenser water spraying control logic; the primary frequency modulation condenser water spraying control logic is used for opening a condenser throat water spraying valve when the primary frequency modulation load of a unit rises, enhancing heat exchange, improving the vacuum degree, accelerating the load rising rate of the unit and improving the quick response capacity of the primary frequency modulation by utilizing chemical desalted water with lower temperature. The method can optimize the unitperformance, accelerate the load increasing rate, shorten the primary frequency modulation response time, reduce the cold source loss and improve the condenser vacuum, and is significant for improvingthe safety and stability of a power grid and the economical efficiency of a power plant.

Description

technical field [0001] The invention belongs to the technical field of generator set frequency regulation, and in particular relates to a method for optimizing the response time of primary frequency regulation. Background technique [0002] As a means to control the grid frequency to be stable within a certain range, primary frequency regulation is an essential function of grid-connected units. With the formulation of the two detailed rules in each region, the technical indicators and assessment methods for the primary frequency regulation of the power grid are more standardized and strict. However, due to poor equipment performance and loose control logic, some power plants often fail to meet the standards in a frequency regulation performance assessment, which not only faces the economic pressure of huge fines, but also is not conducive to the safe and stable operation of the power grid. [0003] Most of the existing measures are to optimize the control system, avoid cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 赵亚维李小军王龙川王艺博
Owner 中国大唐集团科学技术研究总院有限公司
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