CN104504532A - Ordering method for energy saving generation dispatching - Google Patents
Ordering method for energy saving generation dispatching Download PDFInfo
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- CN104504532A CN104504532A CN201410856460.4A CN201410856460A CN104504532A CN 104504532 A CN104504532 A CN 104504532A CN 201410856460 A CN201410856460 A CN 201410856460A CN 104504532 A CN104504532 A CN 104504532A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000010248 power generation Methods 0.000 claims description 26
- 239000003245 coal Substances 0.000 claims description 19
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 18
- 239000000809 air pollutant Substances 0.000 claims description 12
- 231100001243 air pollutant Toxicity 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 10
- 229910052753 mercury Inorganic materials 0.000 claims description 10
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000011161 development Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000009472 formulation Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000012937 correction Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- G06Q10/06312—Adjustment or analysis of established resource schedule, e.g. resource or task levelling, or dynamic rescheduling
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The invention provides an ordering method for energy saving generation dispatching. The ordering method for the energy saving generation dispatching is a method considering a plurality of types of atmospheric pollutant emission as well as correcting and is characterized in that atmospheric pollutant emission factors of an unit are introduced on the basis of the energy saving generation dispatching method, the air quality is taken into account, and the ordering score is modified; an effective tool is provided for preparing a day-ahead generation schedule. The ordering method has the advantages that the actual power system operation management mode is taken into full account; the ordering method is closely linked to the existing energy saving generation dispatching, so that the practicability is high; the ordering method can be included into the existing generation schedule as a functional module; the calculation process is objective, the development is easy, the development efficiency is high, and the practicability is improved.
Description
Technical field
The present invention relates to electric power system dispatching running technology field, particularly relate to a kind of sort method of energy-saving power generation dispatching.
Background technology
Electric power accounts for the half of the country of energy structure in China.Energy-saving and emission-reduction propose new requirement to Operation of Electric Systems management.Energy-conservation aspect, rises and has carried out energy-saving power generation dispatching pilot in 5 provinces such as China Guangdong, Guizhou for 2007, defines the energy-saving power generation dispatching way of dividing based on coal consumption sequence.Reduction of discharging aspect, although propose further strict requirement to fossil-fuel power plant atmospheric pollutant emission standard in standard GB/T 13223, deep not enough for power plant emission research, do not form the dispatching method considering discharge.In recent years along with atmospheric pollution aggravation, environmental requirement promote, consider the scheduling method of discharge in the urgent need to research.
Current various places to power plant emission consider and evaluation criterion mainly " up to standard " and " not up to standard ".To a certain degree electricity price subsidy is carried out for power plant up to standard, power plant not up to standard is not subsidized or punished.Above-mentioned way to manage relative coarseness, can not encourage power plant to reduce discharging further.
Summary of the invention
Based on above-mentioned situation, the object of the invention is to realize considering that atmosphere pollution is scientifically revised energy-saving power generation dispatching sequence, a kind of energy-saving power generation dispatching sort method is provided.For this reason, the technical scheme of employing is as follows.
A method for energy-saving power generation dispatching sequence, comprises step:
Read the net coal consumption rate d of month on the Thermal generation unit waiting to formulate generation schedule
i;
Read a month real-time concentration of emission of atmosphere pollution on each Thermal generation unit, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
Calculate the mean value of each Thermal generation unit Shang Yigeyue environmental administration discharge examination period Air Pollutant Emission concentration, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
Read current execution coal-burning power plant, each Thermal generation unit location Air Pollutant Emission concentration standard, comprise sulfur dioxide emissioning concentration standard
discharged nitrous oxides concentration standard
dust emission concentration standard
mercury and mercuric compounds emission concentration standard
Read each Thermal generation unit location air quality index predicted value next day, be designated as AQI;
The sequence calculating Thermal generation unit according to the following formula divides s
i:
In formula, min{d
irepresent the minimum value of the whole network unit net coal consumption rate; AQI
0represent benchmark AQI, set according to dispatcher-controlled territory air quality re-set target, r is adjustment factor in advance, represents the influence degree that the discharge of overall control unit divides energy-saving power generation dispatching sequence.
The present invention is on energy-saving power generation dispatching method basis, introduce unit Air Pollutant Emission factor, consider air quality, sequence point is revised, propose a kind of energy-saving power generation dispatching sort method considering the correction of polymorphic type Air Pollutant Emission, for generation schedule formulation a few days ago provides effective tool.The method has taken into full account practical power systems operation and management mode, contact closely with existing energy-saving power generation dispatching, there is very strong applicability, can embed among existing generation schedule formulation process as a functional module, its computation process is objective, development difficulty is little, development efficiency is high, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the sort method of energy-saving power generation dispatching of the present invention.
Embodiment
In order to better reach the effect of energy-saving and emission-reduction, need emission factor quantitatively to consider in unit generation planning procedure.In addition, may there is contradiction in units consumption and emission behavior, should be coordinated by reasonable manner self-adaptation.Air quality is one of them suitable medium, and when air quality is better, the low unit of energy consumption preferentially generates electricity; When air quality is poor, discharges little unit and preferentially generate electricity.
Based on above analysis, the present invention, on energy-saving power generation dispatching method basis, introduces unit emission factor, considers air quality, revises sequence point, proposes a kind of coal group of motors generation schedule considering coal consumption and emission factor and sorts and divide a formulating method.The sequence that the method obtains divides the formulation that can be used for coal unit generation schedule a few days ago, and required data basis mainly comprises: coal unit net coal consumption rate, concentration of emission, emission standard, air quality index etc.
Below in conjunction with drawings and embodiments, the present invention is further detailed explanation.Should be appreciated that embodiment described herein in order to explain the present invention, but can not limit the present invention.
The sort method of energy-saving power generation dispatching of the present invention, specifically comprises the steps:
Step s101, reading need all Thermal generation unit (hereinafter referred to as " unit ") the net coal consumption rate d of upper month formulating generation schedule
i.
The net coal consumption rate of Thermal generation unit is the important statistical parameter of reflection power plant runnability, the moon net coal consumption rate can directly obtain, its computing formula is:
Wherein, E
ithe monthly electricity volume of unit, F
ibe unit coal-burning consumption, subscript i represents machine group #, net coal consumption rate unit g/kWh.
Step s102, read a month real-time concentration of emission of Air Pollutants on each unit, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
The real-time concentration of emission of above-mentioned pollutant takes from the flue gas real-time monitoring system that power plant must install, and uploads to Chinese Ministry of Environmental Protection, and sampling time precision is 1 minute, and subscript t represents the time.
Real-time concentration of emission unit mg/Nm
3.
Step s103, time range for environmental administration's discharge check requirements, to calculate on each unit the mean value of a month examination period Air Pollutants concentration of emission, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
Should there be clear and definite time range in various places environmental administration to unit discharge examination.Usually, unit maintenance, stop that standby, start-up course, stopping process and other cause specifics approve, be not counted in examination time range.Note examination time range is T
a.
Calculate unit Air Pollutants concentration of emission mean value in examination time range, its computing formula is:
Wherein, X represents atmosphere pollution, can refer to sulphuric dioxide, oxides of nitrogen, dust, mercury and mercuric compounds,
unit i pollutant X concentration of emission mean value.M is valid data number in examination time range.Real-time concentration
in do not comprise the invalid sampled point of countless certificate.
For M=0 in statistics month unit (as newly gone into operation, last month full cut-off, checkout equipment fault etc.), cannot by above-mentioned formulae discovery average emission concentration, a period of history calculating can be adopted
or get
for the design parameter through Third Party Authentication, do not affect the subsequent step of this method.
Average emission concentration unit mg/Nm
3.
Step s104, reading current execution coal-burning power plant, unit location Air Pollutants emission concentration standard, comprise sulfur dioxide emissioning concentration standard
discharged nitrous oxides concentration standard
dust emission concentration standard
mercury and mercuric compounds emission concentration standard
Unit emission standard is with reference to the requirement of unit location environmental administration.Bulk power grid energy-saving power generation dispatching group on opportunity is distributed in different regions, and its emission concentration standard may be different, distinguishes with subscript i.
Emission concentration standard unit mg/Nm
3.
Step s105, reading each unit location air quality index (AQI) predicted value next day, be designated as AQI
i.
In same dispatch area, air quality index issue source should be unified.End in October, 2014, multiple cities such as BeiJing, China, Ningbo, Guangzhou, Shenzhen, Foshan have published air quality and have forecast numerical value a few days ago, can conveniently obtain.Prediction of air quality by equally for similar traditional weather forecast progressively promoting, open.Prediction of air quality condition is not still possessed for city, power plant place, can according to actual conditions, get the forecast result in its area recently.
Step s101, a calculating unit sequence point s
i.
That read based on step s101-s105 or calculate result, calculates unit sequence point.Computing formula is as follows:
Wherein: min{d
irepresent the minimum value of the whole network unit net coal consumption rate; AQI
0represent benchmark AQI, can set, as AQI according to dispatcher-controlled territory air quality re-set target in advance
0=50 represent that expection air quality is excellent, AQI
0=100 represent that expection air quality is good; R is adjustment factor, for the influence degree that the discharge of overall control unit divides energy-saving power generation dispatching sequence; All the other parameters take from step s101-s105.
Adopt above-mentioned sequence to divide, generation schedule a few days ago can be formulated according to energy-saving power generation dispatching method.
Each energy-saving power generation dispatching pilot region has the ripe method formulating generation schedule according to coal consumption sequence point.S is divided by the sequence obtained in step s106
ifor in existing method, the energy-saving power generation dispatching considering the correction of polymorphic type atmosphere pollution can be realized.
So far, institute of the present invention extracting method is implemented complete.
From above concrete implementation step, the present invention is on energy-saving power generation dispatching method basis, introduce unit Air Pollutant Emission factor, consider air quality, sequence point is revised, propose a kind of energy-saving power generation dispatching sort method considering the correction of polymorphic type Air Pollutant Emission, for generation schedule formulation a few days ago provides effective tool.The method has taken into full account practical power systems operation and management mode, contact closely with existing energy-saving power generation dispatching, there is very strong applicability, can embed among existing generation schedule formulation process as a functional module, its computation process is objective, development difficulty is little, development efficiency is high, has very strong practicality.
It is emphasized that the atmospheric pollution species considered in this method implementation step and modified computing formulae can be customized flexibly according to the operating data resource of actual electric network and business demand etc., extensibility is strong.On time dimension, such as employing history average A QI and annual coal consumption, emissions data, also may be used in annual generation schedule formulation process, etc.Therefore, the above implementation step only unrestricted technical scheme of the present invention in order to explanation.Do not depart from any modification or partial replacement of spirit and scope of the invention, all should be encompassed in the middle of right of the present invention.
Claims (3)
1. a method for energy-saving power generation dispatching sequence, is characterized in that, comprise step:
Read the net coal consumption rate d of month on the Thermal generation unit waiting to formulate generation schedule
i;
Read a month real-time concentration of emission of atmosphere pollution on each Thermal generation unit, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
Calculate the mean value of each Thermal generation unit Shang Yigeyue environmental administration discharge examination period Air Pollutant Emission concentration, comprise sulfur dioxide emissioning concentration
discharged nitrous oxides concentration
dust emission concentration
mercury and mercuric compounds concentration of emission
Read current execution coal-burning power plant, each Thermal generation unit location Air Pollutant Emission concentration standard, comprise sulfur dioxide emissioning concentration standard
discharged nitrous oxides concentration standard
dust emission concentration standard
mercury and mercuric compounds emission concentration standard
Read each Thermal generation unit location air quality index predicted value next day, be designated as AQI;
The sequence calculating Thermal generation unit according to the following formula divides s
i:
In formula, min{d
irepresent the minimum value of the whole network unit net coal consumption rate; AQI
0represent benchmark AQI, set according to dispatcher-controlled territory air quality re-set target, r is adjustment factor in advance, represents the influence degree that the discharge of overall control unit divides energy-saving power generation dispatching sequence.
2. the method for energy-saving power generation dispatching sequence according to claim 1, is characterized in that,
Net coal consumption rate d
icomputing formula be:
Wherein, E
ithe monthly electricity volume of Thermal generation unit, F
ibe the coal-fired consumption of Thermal generation unit, subscript i represents machine group #, and net coal consumption rate unit is g/kWh.
3. the method for energy-saving power generation dispatching sequence according to claim 1 and 2, is characterized in that,
The unit of the real-time concentration of emission of atmosphere pollution, average emission concentration and emission concentration standard is mg/Nm
3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290737A (en) * | 2016-08-29 | 2017-01-04 | 淮沪电力有限公司田集第二发电厂 | Power plant pollution thing discharge value Forecasting Methodology |
| CN111914018A (en) * | 2020-08-21 | 2020-11-10 | 国电联合动力技术有限公司 | Data dynamic sorting method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290737A (en) * | 2016-08-29 | 2017-01-04 | 淮沪电力有限公司田集第二发电厂 | Power plant pollution thing discharge value Forecasting Methodology |
| CN111914018A (en) * | 2020-08-21 | 2020-11-10 | 国电联合动力技术有限公司 | Data dynamic sorting method and device |
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Effective date of registration: 20210428 Address after: 510699 No. 75 Meihua Road, Guangzhou, Guangdong, Yuexiu District Patentee after: ELECTRIC POWER DISPATCHING CONTROL CENTER OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510699 No. 75 Meihua Road, Guangzhou, Guangdong, Yuexiu District Patentee before: ELECTRIC POWER DISPATCHING CONTROL CENTER OF GUANGDONG POWER GRID Co.,Ltd. Patentee before: TSINGHUA University |
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