CN1148868C - Method and equipment for regulating peak of electric power - Google Patents
Method and equipment for regulating peak of electric power Download PDFInfo
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- 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
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 title claims description 15
- 230000005611 electricity Effects 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- 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
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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 |
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| CN1356770A CN1356770A (en) | 2002-07-03 |
| CN1148868C true CN1148868C (en) | 2004-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB001346164A Expired - Fee Related CN1148868C (en) | 2000-12-04 | 2000-12-04 | Method and equipment for regulating peak of electric power |
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| CN (1) | CN1148868C (en) |
Families Citing this family (19)
| 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 cycle system for centralized cooling transformation of thermal power plant |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 regulation evaluation method and system based on distributed energy station access |
| CN104864446B (en) * | 2014-04-14 | 2016-12-07 | 中北大学 | A kind of co-generation unit making full use of pipeline waste heat |
| CN104713388B (en) * | 2014-04-14 | 2017-01-11 | 中北大学 | Combined heat and power generation system with regulating valves adapting to changes |
| CN103940260B (en) * | 2014-04-14 | 2015-04-15 | 中北大学 | Intelligent cogeneration system |
| CN104713149B (en) * | 2014-04-14 | 2017-01-04 | 中北大学 | The co-generation unit that a kind of heat calculates 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 |
| 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 |
| CN111502785A (en) * | 2020-06-01 | 2020-08-07 | 赫普能源环境科技股份有限公司 | Steam pipe network of thermal power plant carries trigeminy and supplies system |
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Owner name: QINGHUA UNIVERSITY; TONGFANG CO., LTD. Free format text: FORMER NAME OR ADDRESS: QINGHUA UNIVERSITY; TSINGHUA TONGFANG CO., LTD. |
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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 |
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