Unlock instant, AI-driven research and patent intelligence for your innovation.

A Compensation System for Primary Frequency Modulation Action under Steam Extraction Condition

A compensation system and working condition technology, applied in the field of primary frequency modulation action compensation system, can solve the problems that the frequency modulation mode is not selectable, the frequency modulation effect such as frequency modulation speed and stability needs to be optimized, and achieve the effect of fast and convenient adjustment

Active Publication Date: 2021-05-25
HUANENG QINGDAO THERMAL POWER CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the frequency modulation mode of these systems is not optional, and the frequency modulation effects such as frequency modulation speed and stability need to be optimized

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Compensation System for Primary Frequency Modulation Action under Steam Extraction Condition
  • A Compensation System for Primary Frequency Modulation Action under Steam Extraction Condition
  • A Compensation System for Primary Frequency Modulation Action under Steam Extraction Condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A frequency modulation action compensation system under steam extraction conditions, the system includes a power grid frequency acquisition module, a power grid frequency compensation judgment module, a frequency modulation compensation calculation module, a steam turbine unit power deviation module, a power control module, a steam extraction valve controller and a frequency modulation Output selector, the power grid frequency collection module is used to collect the real-time frequency of the power grid, and send the real-time frequency to the power grid frequency compensation judgment module to make a judgment on whether compensation is required. When frequency modulation compensation is required, the frequency modulation compensation calculation The module will calculate the compensation power, the compensation power is output by selecting a frequency modulation command output mode by the frequency modulation output selector, and the power deviation module of the steam...

Embodiment 2

[0039] A frequency modulation action compensation system under steam extraction conditions, the system includes a power grid frequency acquisition module, a power grid frequency compensation judgment module, a frequency modulation compensation calculation module, a steam turbine unit power deviation module, a power control module, a steam extraction valve controller and a frequency modulation Output selector, the power grid frequency collection module is used to collect the real-time frequency of the power grid, and send the real-time frequency to the power grid frequency compensation judgment module to make a judgment on whether compensation is required. When frequency modulation compensation is required, the frequency modulation compensation calculation The module will calculate the compensation power, the compensation power is output by selecting a frequency modulation command output mode by the frequency modulation output selector, and the power deviation module of the steam...

Embodiment 3

[0058] A frequency modulation action compensation system under steam extraction conditions, the system includes a power grid frequency acquisition module, a power grid frequency compensation judgment module, a frequency modulation compensation calculation module, a steam turbine unit power deviation module, a power control module, a steam extraction valve controller and a frequency modulation Output selector, the power grid frequency collection module is used to collect the real-time frequency of the power grid, and send the real-time frequency to the power grid frequency compensation judgment module to make a judgment on whether compensation is required. When frequency modulation compensation is required, the frequency modulation compensation calculation The module will calculate the compensation power, the compensation power is output by selecting a frequency modulation command output mode by the frequency modulation output selector, and the power deviation module of the steam...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a frequency modulation action compensation system under steam extraction conditions. The system includes a power grid frequency acquisition module, a power grid frequency compensation judgment module, a frequency modulation compensation calculation module, a steam turbine unit power deviation module, a power control module, and a steam extraction valve control module. The power grid frequency acquisition module is used to collect the real-time frequency of the power grid. The power grid frequency compensation judgment module makes a judgment whether compensation is needed. The frequency modulation compensation calculation module will calculate the compensation power, and the compensation power is selected by the frequency modulation output selector. The power deviation module of the steam turbine unit calculates the difference between the actual power and the rated power, and the power control module outputs the valve opening command to the extraction valve controller, and the extraction valve controller executes according to the received command. Corresponding valve opening operation. The system selects the appropriate mode for output through the frequency modulation output selector, and uses an optimized algorithm in the frequency modulation compensation calculation module to make the compensation effect more accurate.

Description

technical field [0001] The invention relates to the technical field of power generation, in particular to a compensation system for primary frequency regulation action under steam extraction conditions. Background technique [0002] Primary frequency regulation refers to the automatic control process that once the frequency of the power grid deviates from the rated value, the control system of the unit in the power grid will automatically control the increase or decrease of the active power of the unit, limit the frequency change of the power grid, and keep the frequency of the power grid stable. The power grid is a huge The inertial system, according to the rotor motion equation, when the active power of the grid is short, the rotor of the generator accelerates, and the frequency of the grid increases, otherwise the frequency of the grid decreases. Therefore, the primary frequency regulation function is one of the means to dynamically ensure the active power balance of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 王宏强张建民朱传鹏王涛雷文涛李银青
Owner HUANENG QINGDAO THERMAL POWER CO LTD