CN110046737A - A kind of coal unit dispatching method based on environment protection emission big data - Google Patents
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- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 48
- 231100000719 pollutant Toxicity 0.000 claims abstract description 48
- 238000011109 contamination Methods 0.000 claims abstract description 27
- 230000007613 environmental effect Effects 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims abstract description 14
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 30
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 29
- 238000010248 power generation Methods 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003500 flue dust Substances 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 10
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000004071 soot Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 9
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The present invention relates to a kind of coal unit dispatching method based on environment protection emission big data, the present invention is the following steps are included: obtaining unit environment protection emission big data, calculating unit environment protection emission performance, statistics unit gross contamination emission, the optimal environmentally friendly succeeding year generation schedule of building and optimal environmental protection generation schedule a few days ago.The invention proposes a kind of coal unit dispatching methods based on environment protection emission big data, it realizes compared with prior art optimal to pollutant emission environmental protection in the arrangement of coal unit generation schedule, it further promotes the effects of energy saving and emission reduction of coal electricity and reduces pollution effect rate, for traffic departments at different levels when formulating layout generation schedule as reference.
Description
Technical field
The present invention relates to coal unit technical field of power generation control more particularly to a kind of based on environment protection emission big data
Coal unit dispatching method.
Background technique
Coal-burning power plant is all the major fields of emission reduction all the time as coal consumption rich and influential family.Under related request, entirely
Conventional coal motor group realizes minimum discharge qualified discharge substantially within the scope of state.Discharge according to the unit that reruns after transformation is dense
Magnanimity big data analysis is spent, the average emission concentration of sulfur dioxide, nitrogen oxides and flue dust is far below 35mg/m3、50mg/m3
And 10mg/m3, whole total emission volumn is also compared to be transformed to decline to a great extent before, and minimum discharge transformation is to coal-fired plant flue gas dirt
It is significant to contaminate object emission reduction effect.
The fossil-fired unit discharge performance (concentration of emission under unit generated energy, gram/kilowatt hour) in China has been walked alive
The forefront on boundary.Currently, the emission reduction space that source side can further compress is little, discharges achievement between right different type unit
There are still certain othernesses for effect, and under different months, DIFFERENT METEOROLOGICAL CONDITIONS, especially in large area haze heavily contaminated period
Or great socialized regulation air quality ensure in total discharge amount of pollution contribution rate it is also different.Therefore, it is necessary to using coal-fired
The environment protection emission big data of generating set carries out power grid emission reduction Research of Scheduling Method, further promotes the energy-saving and emission-reduction effect of coal electricity
Fruit and reduction pollution effect rate.
Summary of the invention
The purpose of the invention is to further promote the effects of energy saving and emission reduction of coal electricity and reduce pollution effect rate, provide
A kind of coal unit dispatching method based on environment protection emission big data.
A kind of coal unit dispatching method based on environment protection emission big data, comprising the following steps:
Step 1: unit environment protection emission big data is obtained.
Unit environment protection emission pollutant data, including dioxy are obtained from coal unit on-line monitoring system of flue gas discharge
Change sulphur, nitrogen oxides, the concentration data of three pollutant of flue dust and flue gas flow data；From electric power scheduling automatization system
Obtain unit output data；Unit generation is obtained from electric energy metering system utilizes hourage and electricity data.
Step 2: unit environment protection emission performance is determined.
According to step 1, in conjunction with coal unit pollutant emission performance calculation formula: discharge performance=flue gas flow × dirt
Object concentration of emission ÷ unit output is contaminated, each unit sulfur dioxide, nitrogen oxides, flue dust three pollutants year, the moon are calculated
Degree, day discharge performance and three kinds of pollutant weighted average discharge performance, wherein average emission performance=a × sulfur dioxide is arranged
Performance+b × discharged nitrous oxides performance+c × soot emissions performance is put, wherein a:b:c=0.3:0.4:0.3.
Step 3: statistics unit gross contamination emission.
According to step 1 and step 2, discharge pollutants total emission volumn calculation formula in conjunction with unit: a certain period unit is dirty
It contaminates object total emission volumn=(sulfur dioxide+nitrogen oxides+flue dust) and discharges performance × unit generation amount of a certain period, calculate every
Platform unit pollutant is annual, monthly, day total emission volumn.
Step 4: the optimal environmentally friendly succeeding year generation schedule of building.
4A: it is expected that succeeding year pollutant discharge amount: according to step 1 and step 3, showing that the every power generation 1 of current year unit is small
Shi Pingjun generates pollutant discharge amount, calculation formula are as follows: the unit gross contamination emission ÷ current year, the unit generation current year is small
When number；It is assigned from government department and obtains unit succeeding year power generation hourage in succeeding year generation schedule, based on current year power generation 1
Hourly average generates pollutants calculation and goes out every unit succeeding year gross contamination emission, and then it is always dirty to count all units
Contaminate object total emission volumn.
4B: it is expected that succeeding year pollutant discharge amount: according to coal unit year average emission performance in step 2, by from
It is small sequentially to provide each unit environmental protection sequence to big, succeeding year generation schedule is adjusted, in the constant premise of overall power generation amount
Under, preferentially increase identical installed capacity unit the forward unit generation hourage that sorts, reduce the unit generation of sequence rearward
Hourage expects succeeding year gross contamination emission according to method in 4A step to generation schedule after adjustment again, by adjusting
Front and back compares all unit succeeding year gross contamination emissions to determine the optimal succeeding year generation schedule of environmental protection.
Step 5: the optimal environmentally friendly generation schedule a few days ago of building.
5A: it is expected that pollutant discharge amount a few days ago: obtaining generation schedule a few days ago, unit 96 from power dispatch system operation and management system
Point power generation curve, period are every 15 minutes generated output values；According to the per day discharge performance data of unit in step 2, selection
Pollutant discharge amount calculation formula in previous day data and step 3, And then count all unit gross contamination object total emission volumns.
5B: plan arranges environmental protection to check a few days ago: according to the per day discharge performance of coal unit in step 2, selecting previous
Day data provides each unit environmental protection sequence from small to large ord, is adjusted to generation schedule a few days ago, in overall load water
Put down it is constant under the premise of, preferentially increase identical installed capacity unit the forward unit output of sorting, reduce the unit of sequence rearward
Power output, to after adjustment a few days ago generation schedule according to method in 5A step again estimated gross contamination emission a few days ago, by adjusting
Front and back compares all units and generates electricity gross contamination emission a few days ago to determine the optimal generation schedule a few days ago of environmental protection；It ties simultaneously
Region where closing unit, under different months, DIFFERENT METEOROLOGICAL CONDITIONS, in large area haze heavily contaminated period, or in great society
Meeting sexuality period, guarantee ensure local region air quality, the unit for other region equivalent capabilities of giving priority in arranging for.
The invention proposes a kind of coal unit dispatching methods based on environment protection emission big data, compared with prior art
Realize, the further energy-saving and emission-reduction effect that promotes coal electricity optimal to pollutant emission environmental protection in the arrangement of coal unit generation schedule
Fruit and reduction pollution effect rate, for traffic departments at different levels when formulating layout generation schedule as reference.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the coal unit dispatching method based on environment protection emission big data of the present invention；
Fig. 2 is that optimal environmentally friendly succeeding year generation schedule flow chart is constructed in the present invention；
Fig. 3 is that optimal environmental protection generation schedule flow chart a few days ago is constructed in the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Also referring to Fig. 1 to Fig. 3, wherein Fig. 1 is a kind of coal unit tune based on environment protection emission big data of the present invention
The flow chart of degree method；Fig. 2 is that optimal environmentally friendly succeeding year generation schedule flow chart is constructed in the present invention；Fig. 3 is structure in the present invention
Build optimal environmental protection generation schedule flow chart a few days ago.
A kind of coal unit dispatching method based on environment protection emission big data of the present invention, comprising the following steps:
The first step obtains unit environment protection emission big data
Ten thousand multikilowatt unit of 60-66 is saved from certain year is obtained in coal unit on-line monitoring system of flue gas discharge (CEMS)
Environment protection emission pollutant data mainly include the concentration of sulfur dioxide (SO2), nitrogen oxides (NOx), three pollutant of flue dust
Data and flue gas flow data；Unit output data are obtained from electric power scheduling automatization system；From electric energy metering system
It obtains unit generation and utilizes hourage and electricity data.Details as Follows table:
Second step determines unit environment protection emission performance: according to certain year, certain saves ten thousand unit environmental protection big data information of 60-66,
In conjunction with coal unit pollutant emission performance calculation formula: discharge performance (unit: gram/kilowatt hour)=flue gas flow (unit:
Cube m/h) × Pollutant emission concentration (milligram/cubic meter) ÷ (unit output (unit: megawatt) × 1000 ×
1000) each unit sulfur dioxide, nitrogen oxides, three pollutant year of flue dust discharge performance and three kinds of pollutants, are calculated
Weighted average discharge performance.Wherein weighted average discharge performance=a × sulfur dioxide (SO2) emissions performance+b × discharged nitrous oxides
Performance+c × soot emissions performance, wherein a:b:c=0.3:0.4:0.3, the specific performance data that discharges are as follows:
Third step, statistics unit gross contamination emission: it according to two step information of front, discharges pollutants in conjunction with unit
Put total amount calculation formula: a certain period unit gross contamination emission (unit: gram)=(sulfur dioxide+nitrogen oxides+flue dust)
Discharge performance (unit: gram/kilowatt hour) × unit year electricity (unit: kilowatt hour), it calculates and arranges in every unit pollutant year
Total amount is put, specific data are as shown in the table.
4th step, the optimal environmentally friendly succeeding year generation schedule of building
4A: it is expected that succeeding year pollutant discharge amount: according to the first and third step information, showing that the every power generation 1 of current year unit is small
Shi Pingjun generates pollutant discharge amount, calculation formula are as follows: the unit gross contamination emission ÷ current year, the unit generation current year is small
When number；It is assigned from government department and obtains unit succeeding year power generation hourage in succeeding year generation schedule, based on current year power generation 1
Hourly average generates pollutants calculation and goes out every unit succeeding year gross contamination emission, and then it is always dirty to count all units
Contaminate object total emission volumn.
1 hourly average of every power generation of current year unit generates pollutant discharge amount, as shown in the table:
4B: it is expected that succeeding year pollutant discharge amount: according to coal unit year average emission performance in second step, by from
It is small sequentially to provide each unit environmental protection sequence to big, succeeding year generation schedule is adjusted, in the constant premise of overall power generation amount
Under, preferentially increase identical installed capacity unit the forward unit generation hourage that sorts, reduce the unit generation of sequence rearward
Hourage expects succeeding year gross contamination emission according to method in 4A step to generation schedule after adjustment again, by adjusting
Front and back compares all unit succeeding year gross contamination emissions to determine the optimal succeeding year generation schedule of environmental protection.
Unit environmental protection sequence is as shown in the table:
It saves 60-66 ten thousand unit years generation schedule a+1 year b and blowdown flow rate is as shown in the table:
It saves 60-66 ten thousand unit years generation schedule after optimization a+1 year b and blowdown flow rate, data is as shown in the table:
In the case where the total amount that generates electricity is constant, total amount of pollutants discharged 26.8615 can be reduced by adjusting the different unit generation times
Ton pollutant.
5th step, the optimal environmentally friendly generation schedule a few days ago of building.
5A: it is expected that pollutant discharge amount a few days ago: obtaining generation schedule a few days ago, unit 96 from power dispatch system operation and management system
Point power generation curve, period are every 15 minutes generated output values；According to the per day discharge performance data of unit in step 2, selection
Pollutant discharge amount calculation formula in previous day data and step 3, And then count all unit gross contamination object total emission volumns.
5B: plan arranges environmental protection to check a few days ago: according to the per day discharge performance of coal unit in step 2, selecting previous
Day data provides each unit environmental protection sequence from small to large ord, is adjusted to generation schedule a few days ago, in overall load water
Put down it is constant under the premise of, preferentially increase identical installed capacity unit the forward unit output of sorting, reduce the unit of sequence rearward
Power output, to after adjustment a few days ago generation schedule according to method in 5A step again estimated gross contamination emission a few days ago, by adjusting
Front and back compares all units and generates electricity gross contamination emission a few days ago to determine the optimal generation schedule a few days ago of environmental protection；It ties simultaneously
Region where closing unit, under different months, DIFFERENT METEOROLOGICAL CONDITIONS, in large area haze heavily contaminated period, or in great society
Meeting sexuality period, guarantee ensure local region air quality, the unit for other region equivalent capabilities of giving priority in arranging for.
Realize compared with prior art to coal unit generation schedule arrange in pollutant emission environmental protection it is optimal, into one
Step promotes the effects of energy saving and emission reduction of coal electricity and reduces pollution effect rate, for traffic departments at different levels when formulating layout generation schedule
As reference.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and
Its equivalent defines.
Claims (1)
1. a kind of coal unit dispatching method based on environment protection emission big data, which comprises the following steps:
Step 1: unit environment protection emission big data is obtained；
The acquisition unit environment protection emission pollutant data from coal unit on-line monitoring system of flue gas discharge, including sulfur dioxide,
Nitrogen oxides, the concentration data of three pollutant of flue dust and flue gas flow data；Machine is obtained from electric power scheduling automatization system
Group goes out force data；Unit generation is obtained from electric energy metering system utilizes hourage and electricity data；
Step 2: unit environment protection emission performance is determined；
According to step 1, in conjunction with coal unit pollutant emission performance calculation formula: discharge performance=flue gas flow × pollutant
Concentration of emission ÷ unit output, calculates that each unit sulfur dioxide, nitrogen oxides, three pollutant of flue dust be annual, monthly, day row
Performance and three kinds of pollutant weighted average discharge performance are put, wherein average emission performance=a × sulfur dioxide (SO2) emissions performance+b
× discharged nitrous oxides performance+c × soot emissions performance, wherein a:b:c=0.3:0.4:0.3；
Step 3: statistics unit gross contamination emission；
According to step 1 and step 2, discharge pollutants total emission volumn calculation formula in conjunction with unit: a certain period unit pollutant
Total emission volumn=(sulfur dioxide+nitrogen oxides+flue dust) discharges performance × unit generation amount of a certain period, calculates every unit
Pollutant is annual, monthly, day total emission volumn；
Step 4: the optimal environmentally friendly succeeding year generation schedule of building；
4A: it is expected that succeeding year pollutant discharge amount: according to step 1 and step 3, showing that the every power generation of current year unit is put down for 1 hour
Generate pollutant discharge amount, calculation formula are as follows: current year unit gross contamination emission ÷ current year unit generation hourage；
It is assigned from government department and obtains unit succeeding year power generation hourage in succeeding year generation schedule, generated electricity 1 hour and put down based on the current year
It generates pollutants calculation and goes out every unit succeeding year gross contamination emission, and then count all unit gross contamination object discharges
Total amount；
4B: it is expected that succeeding year pollutant discharge amount: according to coal unit year average emission performance in step 2, by from small to large
Sequence provides each unit environmental protection sequence, is adjusted to succeeding year generation schedule, under the premise of overall power generation amount is constant, to identical
Installed capacity unit preferentially increases the forward unit generation hourage that sorts, reduces the unit generation hourage of sequence rearward, right
Generation schedule compares institute according to method in 4A step again estimated succeeding year gross contamination emission by adjusting front and back after adjustment
There is unit succeeding year gross contamination emission to determine the optimal succeeding year generation schedule of environmental protection；
Step 5: the optimal environmentally friendly generation schedule a few days ago of building；
5A: it is expected that pollutant discharge amount a few days ago: obtaining generation schedule a few days ago, 96 points of unit power generations from power dispatch system operation and management system
Curve, period are every 15 minutes generated output values；According to the per day discharge performance data of unit in step 2, previous number of days is selected
According to pollutant discharge amount calculation formula in step 3, And then count all unit gross contamination object total emission volumns；
5B: plan arranges environmental protection to check a few days ago: according to the per day discharge performance of coal unit in step 2, selecting previous number of days
According to, each unit environmental protection sequence is provided from small to large ord, and generation schedule a few days ago is adjusted, it is constant in overall load level
Under the premise of, preferentially increase identical installed capacity unit the forward unit output that sorts, reduce the unit output of sequence rearward, it is right
Generation schedule is according to method in 5A step again estimated gross contamination emission a few days ago a few days ago after adjustment, by adjusting front and back comparison
All units generate electricity gross contamination emission a few days ago to determine the optimal generation schedule a few days ago of environmental protection；In combination with where unit
Region, under different months, DIFFERENT METEOROLOGICAL CONDITIONS, in large area haze heavily contaminated period, or in great socialized regulation period,
Guarantee ensures local region air quality, the unit for other region equivalent capabilities of giving priority in arranging for.
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