CN1148868C - Method and equipment for regulating peak of electric power - Google Patents
Method and equipment for regulating peak of electric power Download PDFInfo
- Publication number
- CN1148868C CN1148868C CNB001346164A CN00134616A CN1148868C CN 1148868 C CN1148868 C CN 1148868C CN B001346164 A CNB001346164 A CN B001346164A CN 00134616 A CN00134616 A CN 00134616A CN 1148868 C CN1148868 C CN 1148868C
- Authority
- CN
- China
- Prior art keywords
- heat
- electric
- cold
- peak
- storage heater
- 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
Links
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Abstract
The present invention discloses a method and a device for the operation of heat and electric cold connection of electric peak adjustment. The present invention comprises a machine set of simultaneous heat and electric generation and a boiler, and the electricity generated by the machine set of simultaneous heat and electric generation enters an electric network. The adjustment of the work condition of the machine set of simultaneous heat and electric generation is guided according to the changing condition of on line electric load and head and cold supplying load. A heat accumulator is used for balancing the supplying and demanding difference between the heat generating load and the cold generating load because the machine set of simultaneous heat and electric generation is in the operation of electric peak adjustment. Compared with the prior art, the present invention has the advantages of low device investment and safe and reliable operation; the electric operating mode of using heat for determining electricity is converted into the operation of electric peak adjustment, the peak and valley difference of the electric load is reduced, and the potential economic benefit is great.
Description
The present invention relates to the energy source and power technical field, particularly relate to operational mode that is used for the power peak regulation heat-electricity-cold combined supply and the device that uses this pattern.
In the prior art, if the heat that co-generation unit produced is used to drive Absorption Refrigerator refrigeration, then this system promptly produces electricity and heat, also produce cold, thereby form combined cooling, heat and power System.Domestic cogeneration power plant moves in " electricity determining by heat " or " electricity determining by cold " mode, and electric power system base lotus is born in the generating online.Because present many regional power supply and demands have reached balance substantially, even the relative excess phenomenon of electric power occurs, often not down, and push up to get at electric load peak period energy output at electric load low ebb phase generating piezometric, influenced the normal operation of electrical network.Thereby local electricity department is very strict to cogeneration power plant's generating online amount limit, makes the economic benefit of cogeneration power plant's operation to be protected, even faces the existence crisis.External combined cooling, heat and power System has the developing history of decades, because the restriction of electrical management system, it is the operational mode of target that the thermoelectric cold cogeneration system mainly takes to pursue combined cooling, heat and power System self economy.Though some cogeneration power plants are in conjunction with tou power price, multiple electricity generates electricity when hanging down electricity price less when high electricity price.But because the operation of combined cooling, heat and power System does not stand in whole electric power system angle, the tou power price that is adopted can't reflect that real electric load peak valley changes, thereby the power peak regulation effect can not be really played in the operation of cogeneration power plant.
At the situation of prior art and the problem of existence, purpose of the present invention provides a kind of regulating peak of electric power method and device thereof.It can make the operational mode of combined cooling, heat and power System by traditional " electricity determining by heat " or " electricity determining by cold ", becomes electric peak regulating operation.Can alleviate the unfavorable situation that the electric load peak-valley difference constantly widens, obviously improve the economy of co-generation unit operation.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
A kind of regulating peak of electric power method, it adopts the operating condition of adjustment cogeneration units self and the quantity of heat production of boiler to adapt to the peaking operation pattern.The steps include: that 1. situations of change according to online electric load and heat supply, cooling load instruct the adjusting of cogeneration units operating mode, the electricity needs information acquisition that the variation of electric load is provided by power scheduling department.2. for extraction condensing type heat supply unit, the electric load peak period increases the steam turbine throttle flow for increasing energy output as far as possible, and increases condensing generating share; The electric load low peak period reduces the steam turbine admission as far as possible, and increases the generating share of drawing gas.For the back pressure type steam turbine unit, then only by changing the energy output that steam turbine vapour amount changes electric load peak valley phase heat supply unit.For combustion type fuel oil cogeneration units, can increase the dynamics of power peak regulation by the start and stop of cogeneration units and boiler.3. pass through storage heater, balance is because of cogeneration units heating of participating in that electric peak regulating operation causes, refrigeration work consumption and heat, the supply and demand difference between the cooling load, when heating capacity or refrigerating capacity are higher than heat or refrigeration duty, storage heater stores unnecessary heat or cold, when heating capacity or refrigerating capacity are lower than heat or refrigeration duty, storage heater heat release or put cold.
Realize the device of above-mentioned regulating peak of electric power method, it comprises cogeneration units and boiler, and the cogeneration units electricity is gone into electrical network.Its design feature is, the heat that described cogeneration units and boiler produce inserts storage heater inlet and Absorption Refrigerator, Absorption Refrigerator and electricity consumption are that the cold that the compression refrigerating machine of power produces inserts storage heater cold inlet, the outlet of storage heater heat is joined with the heat efferent duct, the outlet of storage heater cold is joined with the cold efferent duct, is equipped with break valve between storage heater heat, cold inlet and the outlet.
Regulating peak of electric power method provided by the present invention under the condition that does not influence heating effect, can improve generating rate for incorporation into the power network and generating hourage, thereby has improved the economic benefit of cogeneration power plant's self-operating.Can participate in power peak regulation in addition, produce important function for the safe operation of electric power system and the raising of economic benefit.Also opened up a new road for the survival and development under the electricity market management system of following valency unexpectedly online.Equipment therefor of the present invention, equipment investment is few, and is safe and reliable to operation.Compare with prior art, " electricity determining by heat ", " electricity determining by cold " traditional operation power pattern are become electric peak regulating operation, reduced the electric load peak-valley difference.
The invention will be further described below in conjunction with accompanying drawing and concrete execution mode.
Accompanying drawing is the device connection layout of operation method of the present invention.
Referring to accompanying drawing, realize the device of above-mentioned regulating peak of electric power, comprise cogeneration units 1 and boiler 2, cogeneration units 1 electricity is gone into electrical network.The heat that cogeneration units 1 and boiler 2 produce inserts storage heater 6 inlet and Absorption Refrigerators 4, Absorption Refrigerator 4 and electricity consumption are that the cold that the compression refrigerating machine 3 of power produces inserts storage heater 6 colds inlet, the outlet of storage heater 6 heats is joined with the heat efferent duct, the outlet of storage heater 6 colds is joined with the cold efferent duct, is equipped with break valve 5 between storage heater 6 heats, cold inlet and the outlet.
Regulating peak of electric power method of the present invention is to adopt the operating condition of adjustment cogeneration units self and the quantity of heat production of boiler to adapt to the peaking operation pattern.The steps include: 1. situations of change according to online electric load and heat supply, cooling load, the online energy output that is obtained unit by operating software holds with the heat, the cold that heat refrigerating capacity and storage heater puts power, adjusting and storage heater by its software tip cogeneration units operating mode are put holding of heat, cold, realize the electric peak regulating operation pattern.The electricity needs information acquisition that the variation of electric load is provided by power scheduling department.2. for extraction condensing type heat supply unit, the electric load peak period increases the steam turbine throttle flow for increasing energy output as far as possible, and increases condensing generating share.The electric load low peak period reduces the steam turbine admission as far as possible, and increases the generating volume that draws gas.For the back pressure type steam turbine unit, then only by changing the energy output that steam turbine vapour amount changes electric load peak valley phase heat supply unit.For combustion gas or fuel oil cogeneration units, can increase the dynamics of power peak regulation by the start and stop of cogeneration units and boiler.3. with the heat input storage heater 6 of cogeneration units 1 and boiler 2 outputs, heat enters the mouth and Absorption Refrigerator 4.Absorption Refrigerator 4 and electricity consumption are that the cold that the compression refrigerating machine 3 of power produces inserts storage heater 6 colds inlet, by the supply and demand difference between storage heater 6 balance heat production, cold and heat, the refrigeration duty.When quantity of heat production was higher than hot refrigeration duty, storage heater 6 stored unnecessary heat, storage heater 4 heat releases or heat absorption when heat production, cold are lower than heat, refrigeration duty.The effect of break valve 5 is maintenances or uses when breaking away from storage heater 6.
Claims (2)
1. regulating peak of electric power method, it adopts the operating condition of adjustment cogeneration units self and the quantity of heat production of boiler to adapt to the peaking operation pattern, the steps include: that (1) instruct the adjusting of cogeneration units operating mode, the electricity needs information acquisition that the variation of electric load is provided by power scheduling department according to the situation of change of online electric load and heat supply, cooling load; (2) for extraction condensing type heat supply unit, the electric load peak period increases the steam turbine throttle flow for increasing energy output as far as possible, and increases condensing generating share, and the electric load low peak period reduces the steam turbine admission as far as possible and increases the generating share of drawing gas; For the back pressure type steam turbine unit, then only by changing the energy output that steam turbine vapour amount changes electric load peak valley phase heat supply unit; For combustion gas or fuel oil cogeneration units, can increase the dynamics of power peak regulation by the start and stop of cogeneration units and boiler; (3) pass through storage heater, balance is because of cogeneration units heating of participating in that electric peak regulating operation causes, refrigeration work consumption and heat, the supply and demand difference between the cooling load, when heating capacity or refrigerating capacity are higher than heat or refrigeration duty, storage heater stores unnecessary heat or cold, when heating capacity or refrigerating capacity are lower than heat or refrigeration duty, storage heater heat release or put cold.
2. realize the device of the described regulating peak of electric power method of claim 1, it comprises cogeneration units (1) and boiler (2), cogeneration units (1) electricity is gone into electrical network, it is characterized in that: the heat that described cogeneration units (1) and boiler (2) produce inserts storage heater (6) inlet and Absorption Refrigerator (4), Absorption Refrigerator (4) and electricity consumption are that the cold that the compression refrigerating machine (3) of power produces inserts storage heater (6) cold inlet, the outlet of storage heater (6) heat is joined with the heat efferent duct, the outlet of storage heater (6) cold is joined storage heater (6) heat with the cold efferent duct, be equipped with break valve (5) between cold inlet and the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001346164A CN1148868C (en) | 2000-12-04 | 2000-12-04 | Method and equipment for regulating peak of electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001346164A CN1148868C (en) | 2000-12-04 | 2000-12-04 | Method and equipment for regulating peak of electric power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1356770A CN1356770A (en) | 2002-07-03 |
| CN1148868C true CN1148868C (en) | 2004-05-05 |
Family
ID=4596314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001346164A Expired - Fee Related CN1148868C (en) | 2000-12-04 | 2000-12-04 | Method and equipment for regulating peak of electric power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1148868C (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406865C (en) * | 2003-12-17 | 2008-07-30 | 上海环翔电热蓄能设备工程有限公司 | Heating load prediction and control method for heat storage boiler system |
| US20070100506A1 (en) * | 2005-10-31 | 2007-05-03 | Ralph Teichmann | System and method for controlling power flow of electric power generation system |
| CN102434998A (en) * | 2011-09-16 | 2012-05-02 | 哈尔滨工业大学 | Combined cycling system for concentrated cooling improvement in thermal power plant |
| CN102510076B (en) * | 2011-10-23 | 2014-04-23 | 西安交通大学 | Heat and power dispatching system and dispatching method of back-pressure type combined heat and power generation unit |
| CN102410593B (en) * | 2011-10-23 | 2013-07-10 | 西安交通大学 | Combined cooling and power scheduling system of fuel gas combined cycle unit and scheduling method thereof |
| CN102510103B (en) * | 2011-10-23 | 2013-11-06 | 重庆市电力公司电力科学研究院 | Back-pressure type cogeneration and pure condensing steam thermal power combined dispatching system and dispatching method thereof |
| CN102510098B (en) * | 2011-10-23 | 2013-11-06 | 西安交通大学 | Extraction condensing cogeneration and straight condensing thermal power combined dispatching system and method |
| CN103089349B (en) * | 2013-01-27 | 2015-02-04 | 南京瑞柯徕姆环保科技有限公司 | Combined cooling, heating and power device of distributed type industrial boiler |
| CN104807071B (en) * | 2014-01-28 | 2017-12-08 | 国家电网公司 | Thermal power plant unit method of adjustment and device |
| CN103854069A (en) * | 2014-02-20 | 2014-06-11 | 深圳供电局有限公司 | Peak-load regulation assessment method and system based on distributed energy resource station access |
| CN104713149B (en) * | 2014-04-14 | 2017-01-04 | 中北大学 | The co-generation unit that a kind of heat calculates automatically |
| CN104791877B (en) * | 2014-04-14 | 2016-03-30 | 中北大学 | The co-generation unit that rate of air sucked in required controls automatically |
| CN104713159B (en) * | 2014-04-14 | 2017-01-04 | 中北大学 | Take out the co-generation unit that exhaust steam amount automatically controls |
| CN104713388B (en) * | 2014-04-14 | 2017-01-11 | 中北大学 | Combined heat and power generation system with regulating valves adapting to changes |
| CN104791899B (en) * | 2014-04-14 | 2017-01-04 | 中北大学 | A kind of cogeneration of heat and power heating system |
| CN106322822B (en) * | 2016-10-08 | 2019-03-08 | 国核电力规划设计研究院 | Dissolve cold-hot combined supply system and method that light is abandoned in abandonment |
| CN106439989A (en) * | 2016-11-14 | 2017-02-22 | 中国华电科工集团有限公司 | Domestic-hot-water intelligent control system of distributed energy station |
| CN107171350B (en) * | 2017-07-17 | 2023-09-15 | 赫普热力发展有限公司 | Power peak regulation system and method thereof |
-
2000
- 2000-12-04 CN CNB001346164A patent/CN1148868C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1356770A (en) | 2002-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1148868C (en) | Method and equipment for regulating peak of electric power | |
| Li et al. | An integrated system for thermal power generation, electrical energy storage and CO2 capture | |
| CN113202574B (en) | Peak-shaving power generation system and method by coupling compressed air energy storage | |
| CN111852595A (en) | Efficient thermal power plant deep peak regulation system and method | |
| CN109885855B (en) | Cold-heat-electricity triple energy station steady-state scheduling method considering unit characteristics | |
| CN1148869C (en) | Method and equipment for regulating peak of electric power | |
| De Lucia et al. | Benefits of compressor inlet air cooling for gas turbine cogeneration plants | |
| CN106096248B (en) | The selection method of best heating system under varying environment | |
| CN110284973A (en) | A kind of distributed triple-generation system | |
| Wang et al. | Evaluation of combined heat and power plants with electricity regulation | |
| CN215174935U (en) | High-low temperature heat storage peak shaving system of thermal power plant | |
| Liu et al. | Integration model and performance analysis of coupled thermal energy storage and ejector flexibility retrofit for 600 MW thermal power units | |
| CN114607997A (en) | Novel heat storage heat exchanger system | |
| CN108023360A (en) | Avoided the peak hour and the participation peak load regulation network steam power plant of heat supply network heat accumulation and peak regulating method based on thermoelectricity | |
| CN211625419U (en) | Solar energy and gas thermoelectric combined energy supply system | |
| CN106930834A (en) | A kind of energy-saving distributing-supplying-energy system based on liquefied natural gas | |
| CN109931581B (en) | System combining oxygen-enriched combustion with auxiliary peak regulation and frequency modulation equipment of boiler | |
| Ye et al. | Research on optimal operation strategy with ancillary services of flexible thermal power units | |
| Lindmark | The role of absorption cooling for reaching sustainable energy systems | |
| CN217441604U (en) | Novel heat storage heat exchanger system | |
| CN215109066U (en) | Natural gas distributed energy resource station based on heat accumulator | |
| CN213272569U (en) | Combined cooling heating and power energy storage system | |
| CN1236081A (en) | Low discharge heat supply system | |
| CN217421298U (en) | Thermal power generating unit system based on sand heat storage | |
| CN114526473B (en) | Deep peak shaving heat supply system based on furnace water cooler and thermal decoupling control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGHUA UNIVERSITY; TONGFANG CO., LTD. Free format text: FORMER NAME OR ADDRESS: QINGHUA UNIVERSITY; TSINGHUA TONGFANG CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee after: Tongfang Co., Ltd. Patentee after: Tsinghua University Address before: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee before: Qinghua Tongfang Co., Ltd. Patentee before: Tsinghua University |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040505 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |