Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coordinated control type peak and frequency regulation system and equipment of thermal power generating unit, and method thereof

A technology of coordinated control, peak regulation and frequency regulation, applied in control/regulation systems, general control systems, electrical program control, etc., can solve the problems of inability to achieve the highest price income from peak regulation, difficulty in low-load operation of steam turbines, and high requirements for operators. Achieve the effect of achieving peak and frequency regulation benefits, maximizing, and reducing system investment

Active Publication Date: 2019-12-03
HEPU ENERGY ENVIRONMENTAL TECHNOLOGY CO LTD
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, based on the transformation measures of the unit itself, there are problems such as limited depth of peak regulation, low-load operation of boilers and turbines, which affects the life of the unit, and high requirements for operating personnel. There are also problems with the flexibility of thermal power units and peak-shaving and frequency-regulation transformation of traditional electric boilers, including the large investment of new electric boilers and the fact that they can only operate in the heating season in winter.

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
  • Coordinated control type peak and frequency regulation system and equipment of thermal power generating unit, and method thereof
  • Coordinated control type peak and frequency regulation system and equipment of thermal power generating unit, and method thereof
  • Coordinated control type peak and frequency regulation system and equipment of thermal power generating unit, and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Coordination Control System-CCS system is the abbreviation of English Coordination Control System. The coordinated control system refers to coordinate the working status of the steam turbine and the boiler through the control circuit, and at the same time issue instructions to the boiler automatic control system and the steam turbine automatic control system, so as to achieve the purpose of quickly responding to load changes and maximize the frequency and peak regulation of the unit. Capability, stable operating parameters, its structural composition includes the overall closed-loop control system of the steam turbine and boiler, and also includes each subsystem.

[0056] The former Thermal Automation Standardization Committee of the Ministry of Electric Power recommended the use of analog control system (modulating control system, MCS) to replace names such as closed-loop control system, coordinated control system, and automatic adjustment system, but the coordinated co...

Embodiment 2

[0097] The difference from Embodiment 1 is that the electric boiler system is removed, and only rely on the unit itself, that is, the coordinated control system only includes the unit coordinated control module 4, and the unit coordinated control module 4 includes a boiler coordinated control module and a steam turbine coordinated control module. The unit coordination control module 4 is integrated in the control cabinet of the centralized control room of the thermal power unit, and communicates with the original CCS and AGC control systems of the unit, as well as various operating parameter sensors and controllers of boilers, steam turbines and generators.

[0098] In this embodiment, the boiler coordination control module includes any one or a combination of a boiler dry-wet state conversion control module, a boiler coal-water ratio optimization control module, and a boiler combustion optimization control module.

[0099] In this embodiment, the turbine coordination control m...

Embodiment 3

[0120] This embodiment is similar to Embodiment 1, except that the electric boiler of the coordinated control system in this embodiment is an electrode boiler combined with a heat storage tank. Heat, the entire coordinated control system controls the power supply of the electrode boiler and the heat storage capacity of the hot water tank, and completes the combination of unit boiler, steam turbine load reduction and electric boiler power consumption and heat storage tank heat storage, responding to the power grid's peak and frequency regulation load of thermal power units need.

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 relates to a coordinated control type peak and frequency regulation system and equipment of a thermal power generating unit, and a method thereof. The system comprises a unit coordination control module 4 and an electric boiler 9. The unit coordination control module 4 includes a boiler coordination control module, a steam turbine coordination control module and an electric boiler control module. The coordinated control type peak regulation and frequency modulation equipment comprises a hardware part and a software part. The unit coordinated control module 4 is integrated in a thermal power unit central control room control cabinet and is in communication connection with various operating parameter sensors and controllers of an original CCS and AGC control systems, a boiler,a steam turbine, a generator and an electric boiler. Therefore, the flexible peak and frequency modulation of the thermal power generating unit can be realized by using a coordinated control method.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a peak-shaving and frequency-regulating system, equipment and method for unit coordinated control. Background technique [0002] In recent years, with the continuous upgrading of the country's emphasis on wind power, photovoltaic and other green energy, the increase of new energy access and the phenomenon of abandoning wind power in the power grid are increasing. In order to stabilize the operation of the power grid, the flexibility of thermal power plants, especially the depth Peak shaving capability is becoming a new normal. In order to actively respond to the requirements of the power grid, on the premise of ensuring the safety of unit operation, in line with the principle of continuously expanding the "depth" and "breadth" of flexible peak shaving, reducing peak shaving fuel consumption, increasing the automatic input rate during deep peak shaving, and maximi...

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
IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 杨豫森郭友瑞崔华陈辉
Owner HEPU ENERGY ENVIRONMENTAL TECHNOLOGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com