CN202215437U - Integrated system with wind power generation and compressed air energy storage functions - Google Patents

Integrated system with wind power generation and compressed air energy storage functions Download PDF

Info

Publication number
CN202215437U
CN202215437U CN 201120330819 CN201120330819U CN202215437U CN 202215437 U CN202215437 U CN 202215437U CN 201120330819 CN201120330819 CN 201120330819 CN 201120330819 U CN201120330819 U CN 201120330819U CN 202215437 U CN202215437 U CN 202215437U
Authority
CN
China
Prior art keywords
wind
air
integrated
energy storage
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201120330819
Other languages
Chinese (zh)
Inventor
刘文毅
杨勇平
徐钢
李守成
张伟德
黄健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North China Electric Power University
Original Assignee
North China Electric Power University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North China Electric Power University filed Critical North China Electric Power University
Priority to CN 201120330819 priority Critical patent/CN202215437U/en
Application granted granted Critical
Publication of CN202215437U publication Critical patent/CN202215437U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model discloses an integrated system with wind power generation and compressed air energy storage functions, and belongs to the field of renewable energy power generation and utilization. The integrated system mainly comprises a wind farm, an air compressor system, an air storage chamber, a fuel gas turbine and a generator, wherein the wind farm is connected with an air compressor transformer and a power network respectively; the air compressor transformer is connected in series with the air compressor system, a heat exchanger, an underground air storage chamber, a pre-heater and the combustion chamber; and the combustion chamber is connected with a fuel gas tank, the fuel gas turbine and the generator respectively, so as to form the integrated system with the wind power generation and the compressed air energy storage functions. Through the adoption of the integrated system, unstable wind power is converted into stable and high-quality peak shaving electric energy through compressed air energy storage; the peak shaving capability is high; and the integrated system plays an important role in receiving large-scale wind power for a power network as well as improving the peak shaving capability and the safety performance of the power network. Therefore, the air compressor system can conduct efficient and stable air compression by utilizing non-continuous wind power.

Description

The integral system of a kind of wind-power electricity generation and compressed-air energy storage
Technical field
The utility model belongs to the power field of renewable energy utilization, the integral system of particularly a kind of wind-power electricity generation and compressed-air energy storage.
Background technique
Wind energy is the renewable energy sources of cleaning, and its cost of electricity-generating is low, and the THE WIND ENERGY RESOURCES IN CHINA amount is abundant, and wind power technology is comparatively ripe, by 2010 the end of the year China the wind-power electricity generation installation surmount the U.S. with 4,183 ten thousand kilowatts and become the global first wind-powered electricity generation big country.According to country's " new energy industry development planning " draft; The year two thousand twenty China wind-powered electricity generation total installation of generating capacity will reach 1.5 hundred million kilowatts; Therefore following wind-powered electricity generation will be the renewable energy power generation mode that China gives priority to; The scale of its development and speed will be directly connected to China's energy-saving and emission-reduction strategy and country about adjustment and optimization energy resource structure, improve the target of renewable energy sources ratio.
Yet, in the wind-powered electricity generation fast development, expose problems; Wind energy exists intermittent and two fatal problems of poor stability, at the high load demand period of electrical network as one of renewable energy sources; Wind-powered electricity generation is insecure, but possibly send the power that a large amount of electrical networks are difficult to dissolve period at low-load.Like this, the electrical network that relies on wind energy power on a large scale may produce serious Security and stability problem, and large-scale wind power is seen the contradiction of dissolving off and become increasingly conspicuous, and the problem of " abandoning wind " is serious gradually.According to statistics, wind-powered electricity generation enterprise abandons electric weight and accounts for 1/3 of the total amount of should generating electricity in recent years, causes the wasting of resources of flood tide, and the sustainable development to power network safety operation and wind-powered electricity generation simultaneously proposes double challenge.Because the unstability of wind resource, electrical thermal storage are one of extensive main bottlenecks that utilizes of restriction wind-powered electricity generation.How to utilize energy accumulating technique with these intermittent type energy " splicing ", and output stably, be to improve renewable energy sources ratio and the extensive problem that must solve of utilizing of renewable energy sources.
Can greatly avoid above shortcoming through using energy-storage system.Yet the savings of electric energy are difficulties and expensive; As use the most frequently used electric power storage mode-lead-acid battery; Though its technology has reached the quite ripe stage; Yet effects limit such as scale, cost its application in long-range stand-alone program, the cost of its every kilowatt hour is the hundreds of dollar, be used for large power energy storage hardly maybe.In addition, battery maintenance also is relevant with it technical bottleneck with self discharge, also can threaten to environment simultaneously.
Compressed-air energy storage (CAES) is a kind of generally acknowledged potential extensive energy storage mode, and its energy storage cost is lower, and is very little to the pollution of environment.In a typical compressed air system, in the low-load period of electrical network, a part of electric energy is used for the drive air compressor.Air compressed is stored in lining, certain specific space (like underground karst cavity or artificial gas storage chamber etc.).Then, in peak of power consumption period, the high-pressure air of compression is released out, through the expansion driven turbine power generation.The Caes system wants using gases fuel, rock gas normally, with burning in pressurized air improving compressed-air actuated temperature, thereby improve the efficient of system.Different with traditional gas turbine power generation, the CAES system provides pressurized air through gas storage chamber, the demand for fuel when having reduced unit operation.
China's wind energy deposit is abundant; And be evenly distributed; In order to realize the high-quality utilization of wind-power electricity generation, the integral system and the integrated approach that propose a kind of wind-power electricity generation and extensive accumulation of energy are very important, and this system is when electrical network is in low power consumption; Integrated through wind-powered electricity generation and compressed-air energy-storage system drives multistage compressor system compresses air and high-pressure air stored with part or all of wind-powered electricity generation; When peak of power consumption, discharge and drive gas turbine power generation supply electrical network.Such system has improved utilization ratio of wind energy and benefit widely, has also significantly improved the Security and stability of electrical network simultaneously.
The model utility content
The purpose of the utility model is in the existing technology; Wind energy exists intermittent and two fatal problems of poor stability, at the high load demand period of electrical network as one of renewable energy sources; Wind-powered electricity generation is insecure, but possibly send the power that a large amount of electrical networks are difficult to dissolve period at low-load.Like this; The extensive electrical network that relies on wind energy power may produce serious Security and stability problem and propose the integral system of a kind of wind-power electricity generation and compressed-air energy storage; It is characterized in that: said wind-power electricity generation is that wind energy turbine set 1 is connected with electrical network 11 with gas compressor transformer 2 respectively with the composition of compressed-air energy storage integral system; Gas compressor transformer 2 is connected with compressor system 3, heat exchanger 4, underground gas storage chamber 5, preheater 6 and firing chamber 7, and firing chamber 7 connects fuel pot 8 and combustion gas turbine 9 respectively, and combustion gas turbine 9 connects generator 10; Generator 10 outputs are connected to electrical network 11, form wind-power electricity generation and compressed-air energy storage integral system.
Described compressor system is composed in series by first order gas compressor 12, first interstage cooler 13, second level gas compressor 14, second interstage cooler 15 and third level gas compressor 16.
The beneficial effect of the utility model is that the transformation of energy benefit of wind energy improves; The transformation of energy benefit can further be divided into two-part: (1) peak regulation benefit; Be exactly the benefit and electric network security, stability strengthened and power supply quality improves the benefit of bringing of economizing on coal that the CAES power station produces when substituting the peak load thermal power generation, and can reduce investment cost, reduce discharging; (2) fill out the paddy benefit,, improved the wind-powered electricity generation on-road efficiency because the accumulation of energy of CAES is fully utilized the wind-powered electricity generation that can only be dropped originally.Thereby new system can further promote the development of renewable energy power generation.
Description of drawings
Fig. 1 is a wind-powered electricity generation Caes system schematic.
Fig. 2 is that compressor system is specifically arranged schematic representation.
Embodiment
The utility model proposes the integral system of a kind of wind-power electricity generation and compressed-air energy storage.Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a wind energy Caes integrated power generation system schematic representation.Wind energy turbine set 1 is connected with electrical network 11 with gas compressor transformer 2 respectively; Gas compressor transformer 2 is connected with compressor system 3, heat exchanger 4, underground gas storage chamber 5, preheater 6 and firing chamber 7; Firing chamber 7 connects fuel pot 8 and combustion gas turbine 9 respectively; Combustion gas turbine 9 connects generator 10, and generator 10 outputs are connected to electrical network 11, form wind-power electricity generation and compressed-air energy storage integral system.Wherein the structure of compressor system 3 is as shown in Figure 2, is composed in series by first order gas compressor 12, first interstage cooler 13, second level gas compressor 14, second interstage cooler 15 and third level gas compressor 16.
The wind-powered electricity generation that wind energy turbine set 1 is sent; When higher in power load, at first supply with electricity consumer when electrical network can be dissolved and use; At low power consumption, when electrical network can't be dissolved; The unnecessary electricity that wind energy is sent directly flows to gas compressor transformer 2, is used further to drive air compressors at different levels, and the heat that produces in the adiabatic compression process is absorbed by cryogenic fluid (normally cooling water) through heat exchanger 4, and the pressurized air of cooling is stored in the gas storage chamber 5 through piping; In above process, the pressure that electric energy is converted into air can store.Be in peak time at electrical network, the pressurized air of storage just can discharge the driving gas turbine power generation, and detailed process is following: the pressurized air of high pressure discharges from gas storage chamber 5; At first pass through preheater 6; Temperature raises, and with the fuel mix entering firing chamber 7 in the fuel pot 8, the combustion gas that the firing chamber produces HTHP promotes combustion gas turbine 9 actings; The generator 10 coaxial with combustion gas turbine just begins to produce electric energy, thereby reaches the purpose of peak regulation.
The identical scheme of embodiment's 1 gas compressor rotating speeds at different levels,
Three grades pressure ratio is 5, and according to the variation of compression ratio and air volume, promptly pressure and volume are approximated to inverse ratio, thereby the quantity of compressor just can be confirmed among Fig. 2: like totally 25 of first order compressor bank 12; Through first interstage cooler 13, temperature is reduced to normal temperature, arrives totally 5 of high stage compressor groups 14 again; Through second interstage cooler 15, temperature is reduced to normal temperature again, gets into totally 1 of third level compressor bank 16 at last; Produce the high pressure air of satisfactory 125bar, after three grades of heat exchange coolings, the gas storage chamber of being driven underground stores; So far, 31 air compressors are all driven by unnecessary wind-powered electricity generation, and the coupling of wind-powered electricity generation and gas compressor is achieved.
Identical, the back two-stage rotating speed same approach of two-stage platform number before embodiment 2 adopts,
Three grades pressure ratio is 5, all is 5 like first and second stage compressor, and its second level rotating speed and the first order keep 5: 1 rotating ratio; 1 of the third level, its rotating speed and second level rotating speed approximately equal; After three grades of compressions, air becomes 125 atmospheric pressurized gas by 1 initial barometric pressure; After three grades of heat exchange coolings, the gas storage chamber of being driven underground stores, so far; 11 air compressors are all driven by unnecessary wind-powered electricity generation, and the coupling of wind-powered electricity generation and gas compressor is achieved.
3 at different levels numbers of embodiment, rotating speed also can freely be set, and can produce multiple number and speed setting scheme, and three grades pressure ratio is 5, are 5: 5: 1 and three grades of rotating speed ratios are 5: 1: 1 like three grades of platform ratios of counting; Perhaps to count ratio be that 25: 5: 5, three grades rotating ratios are to three grades of platforms: 5: 5: 1; But rotating ratios at different levels keep constant ratio, thereby guarantee the stable operation of compressor system.

Claims (2)

1. the integral system of wind-power electricity generation and compressed-air energy storage; It is characterized in that; The composition of said wind-power electricity generation and compressed-air energy storage integral system: wind energy turbine set (1) is connected with electrical network (11) with gas compressor transformer (2) respectively; Connect in gas compressor transformer (2) and compressor system (3), heat exchanger (4), underground gas storage chamber (5), preheater (6) and firing chamber (7), firing chamber (7) connect fuel pot (8) and combustion gas turbine (9) respectively, and combustion gas turbine (9) connects generator (10); Generator (10) output is connected to electrical network (11), forms wind-power electricity generation and compressed-air energy storage integral system.
2. according to the integral system of said wind-power electricity generation of claim 1 and compressed-air energy storage; It is characterized in that described compressor system is composed in series by first order gas compressor (12), first interstage cooler (13), second level gas compressor (14), second interstage cooler (15) and third level gas compressor (16).
CN 201120330819 2011-09-05 2011-09-05 Integrated system with wind power generation and compressed air energy storage functions Expired - Fee Related CN202215437U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120330819 CN202215437U (en) 2011-09-05 2011-09-05 Integrated system with wind power generation and compressed air energy storage functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120330819 CN202215437U (en) 2011-09-05 2011-09-05 Integrated system with wind power generation and compressed air energy storage functions

Publications (1)

Publication Number Publication Date
CN202215437U true CN202215437U (en) 2012-05-09

Family

ID=46014696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120330819 Expired - Fee Related CN202215437U (en) 2011-09-05 2011-09-05 Integrated system with wind power generation and compressed air energy storage functions

Country Status (1)

Country Link
CN (1) CN202215437U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359437A (en) * 2011-09-05 2012-02-22 华北电力大学 Integrated system with wind power generation and compressed air energy storage and integration method thereof
CN103628932A (en) * 2013-11-25 2014-03-12 赖勇清 High-efficiency compressed air energy storage power generation system
CN103644081A (en) * 2013-11-28 2014-03-19 华北电力大学 Wind power generation, thermal power generation and compressed air energy storage integrated power generation system
CN103670942A (en) * 2012-09-07 2014-03-26 重庆大学 Gas-liquid two-phase energy storage and power compensation system of wind power plant
CN104047809A (en) * 2013-05-21 2014-09-17 摩尔动力(北京)技术股份有限公司 Wind energy using method and system
CN106321356A (en) * 2016-08-17 2017-01-11 上海电机学院 Novel distributed energy system for marginal areas
CN107939604A (en) * 2017-10-19 2018-04-20 华北电力大学 A kind of wind-powered electricity generation and seawater compressed-air energy storage integrated apparatus and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359437A (en) * 2011-09-05 2012-02-22 华北电力大学 Integrated system with wind power generation and compressed air energy storage and integration method thereof
CN102359437B (en) * 2011-09-05 2014-10-08 华北电力大学 Integrated system with wind power generation and compressed air energy storage and integration method thereof
CN103670942A (en) * 2012-09-07 2014-03-26 重庆大学 Gas-liquid two-phase energy storage and power compensation system of wind power plant
CN104047809A (en) * 2013-05-21 2014-09-17 摩尔动力(北京)技术股份有限公司 Wind energy using method and system
CN103628932A (en) * 2013-11-25 2014-03-12 赖勇清 High-efficiency compressed air energy storage power generation system
CN103628932B (en) * 2013-11-25 2015-07-15 赖勇清 High-efficiency compressed air energy storage power generation system
CN103644081A (en) * 2013-11-28 2014-03-19 华北电力大学 Wind power generation, thermal power generation and compressed air energy storage integrated power generation system
CN106321356A (en) * 2016-08-17 2017-01-11 上海电机学院 Novel distributed energy system for marginal areas
CN107939604A (en) * 2017-10-19 2018-04-20 华北电力大学 A kind of wind-powered electricity generation and seawater compressed-air energy storage integrated apparatus and method

Similar Documents

Publication Publication Date Title
CN202215437U (en) Integrated system with wind power generation and compressed air energy storage functions
CN102359437B (en) Integrated system with wind power generation and compressed air energy storage and integration method thereof
CN103644081A (en) Wind power generation, thermal power generation and compressed air energy storage integrated power generation system
CN102758689B (en) Ultra-supercritical air energy storage/release system
CN104675680B (en) A kind of compressed-air energy-storage system of supply of cooling, heating and electrical powers
CN103352830B (en) A kind of compressed air energy storage power generating system using unstable state compression process
CN203257492U (en) Compressed air electric power energy storage system
CN102797613A (en) Water pumping and compressed air energy storage system
CN104265458B (en) A kind of working method of compressed air energy storage power generating system
CN103114971B (en) Hybrid energy storage system used for restraining fluctuation of clustering wind power plant power output
CN202811078U (en) Ultra-supercritical air energy storage/release system
CN202970911U (en) Novel-process supercritical air energy storage system
CN102062052A (en) Wind and solar hybrid energy storage and power generation integration system and process
CN206972326U (en) A kind of Novel cold-storage liquefied air energy-storing and power-generating system
CN103225598A (en) Method and system for accumulating energy by compressed air and heat accumulation medium simultaneously
CN106907203A (en) The air compressed energy-storage and generating integrated system of wind light mutual complementing
CN102852727A (en) Air compression and solar heat collection energy storage and power generation system using wind farm tower
CN103291455A (en) Co-generation compressed air energy storage method and energy storage system
CN109026241A (en) A kind of heat pump compressed-air energy-storage system
CN110206599A (en) A kind of cool and thermal power Federal Reserve co-feeding system
CN202047927U (en) Water pumping compressed air energy-storage system
CN207064027U (en) The air compressed energy-storage and generating integrated system of wind light mutual complementing
CN104533556A (en) Carbon dioxide gas-liquid phase change energy storage method and device for achieving method
CN208870659U (en) A kind of heat pump compressed-air energy-storage system
CN110206600A (en) A kind of heat pump power storage system and method storing up cold heat accumulation based on array

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120509

Termination date: 20140905