CN106208047B - A kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit - Google Patents
A kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit Download PDFInfo
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- CN106208047B CN106208047B CN201610650417.1A CN201610650417A CN106208047B CN 106208047 B CN106208047 B CN 106208047B CN 201610650417 A CN201610650417 A CN 201610650417A CN 106208047 B CN106208047 B CN 106208047B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit.It is ranked up number including the use of weighting factor method to local unit；The mark Iter=0 of sub-area division is set；Enable Iter=Iter+1；Judge to identify whether Iter is more than the sub-area division number Itermax that operation of power networks department provides；All units being identified as in the sub-area division of Iter are constituted into a set；Choose the maximum unit of number；Electric network swim is calculated using Load flow calculation tool BPA；Judge whether the largest number of unit output is 0 in Iter sub-area division unit set；Choose the largest number of unit in Iter sub-area division unit set, be arranged the unit output contribute at present equal to the unit plus the unit rated capacity 5 percent；The present invention can effectively reduce local unit discharge, reduce environmental pollution, helpful reference is provided for current environmental protection pressure operation of urban distribution network growing day by day.
Description
Technical field
The invention belongs to electric power system dispatching running technology fields, more particularly to a kind of electricity considering energy-saving and emission-reduction benefit
Net unit output method of adjustment.
Background technology
In recent years, the environmental problem of some urban areas of China is constantly aggravated, haze weather getting worse, and there is an urgent need to turn
Become energy development mode, adjusts energy production structure.Consumption of coal proportion is reduced, clean energy resource is greatly developed, optimizes power supply knot
Structure and layout, it is outside to administer the Critical policies of haze by electric ratio to improve city receiving end power grid.In addition, going out formulating local unit
When power strategy, energy-output ratio, the emission behaviour etc. under local unit unit quantity of electricity should be also fully considered.Therefore, it is effectively slow
Urban area environmental problem is solved, should fully improve external electric power ratio first, secondly reduces local unit discharge.Should it ensure
Under the premise of urban distribution network safe and stable operation, situations such as fully considering local unit primary energy consumption, discharge, formulate local
Unit output adjustable strategies so that receiving the maximized local unit discharge of reduction as possible simultaneously of external electric power, alleviating city
Environment and haze problem.However, there is no a kind of urban distribution network local unit output of general consideration energy-saving and emission-reduction benefit at present
Method of adjustment.
Invention content
To solve the above-mentioned problems, considering that the power grid unit of energy-saving and emission-reduction benefit goes out the purpose of the present invention is to provide a kind of
Power method of adjustment.
In order to achieve the above object, the power grid unit output method of adjustment packet provided by the invention for considering energy-saving and emission-reduction benefit
Include the following steps executed in order：
Step 1) is utilized according to primary energy consumption amount, the carbon emission amount under certain urban distribution network local unit unit quantity of electricity
Weighting factor method is ranked up number to local unit；
The mark Iter=0 of sub-area division is arranged in step 2)；
Step 3) enables Iter=Iter+1；
Step 4) judges whether mark Iter is more than the sub-area division number Itermax that operation of power networks department provides, if so,
It enters step 10), this flow ends here, and otherwise enters step 5)；The sub-area division number that wherein operation of power networks department provides
The numerical value of Itermax is to be computed analysis grid short circuit level by operation of power networks department to determine；
All units being identified as in the sub-area division of Iter are constituted a set, referred to as Iter power grids point by step 5)
Area's unit set, and all units being arranged in Iter sub-area division unit set overfill power operation；
Step 6) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to this
Unit contributes subtract 5 the percent of the unit rated capacity at present；
Step 7) calculates electric network swim using Load flow calculation tool BPA, with judge to be identified as Iter sub-area division whether
Meet " N-1 " verification, if so, entering step 8), otherwise enters step 9)；
Step 8) judges whether the largest number of unit output is 0 in Iter sub-area division unit set, if so, should
Unit is rejected from Iter sub-area division unit set, is then transferred to step 6), is otherwise directly transferred to step 6)；
Step 9) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to the machine
Group contributes add 5 the percent of the unit rated capacity at present, is then transferred to step 3)；
Step 10) terminates.
In step 1), the weighting factor method is referred to the primary energy consumption amount under unit unit quantity of electricity, carbon row
High-volume weight is disposed as 0.5, and weighted sum obtains the comprehensive weight of each unit as a result, according to comprehensive weight as a result, to each
Unit starts number consecutively, and the bigger unit of comprehensive weight result, number is bigger, and it is poorer to represent unit energy-saving and emission-reduction benefit.
In step 7), the satisfaction " N-1 " verification refer to any generator being identified as in the sub-area division of Iter,
When circuit or main transformer fault-free disconnect, the stable operation of power grid can be kept, and other elements is not caused to be more than defined accident mistake
The requirement of load and voltage tolerance.
The advantageous effect of the power grid unit output method of adjustment provided by the invention for considering energy-saving and emission-reduction benefit：
Compared with prior art, the present invention obtains maximum external electric power ratio by maximumlly reducing unit output
Example, while having fully considered unit energy-saving and emission-reduction benefit when reducing unit output, formulated can quantify, the unit easily implemented goes out
Power adjustable strategies.The unit output adjustable strategies can effectively reduce local unit discharge, reduce environmental pollution, for current environmental protection
Pressure operation of urban distribution network growing day by day provides helpful reference.
Description of the drawings
Fig. 1 is the flow chart of the power grid unit output method of adjustment provided by the invention for considering energy-saving and emission-reduction benefit.
Specific implementation mode
In the following with reference to the drawings and specific embodiments to the power grid unit output provided by the invention for considering energy-saving and emission-reduction benefit
Method of adjustment is described in detail.
As shown in Figure 1, the power grid unit output method of adjustment provided by the invention for considering energy-saving and emission-reduction benefit includes by suitable
The following steps that sequence executes：
Step 1) is utilized according to primary energy consumption amount, the carbon emission amount under certain urban distribution network local unit unit quantity of electricity
Weighting factor method is ranked up number to local unit；
The mark Iter=0 of sub-area division is arranged in step 2)；
Step 3) enables Iter=Iter+1；
Step 4) judges whether mark Iter is more than the sub-area division number Itermax that operation of power networks department provides, if so,
It enters step 10), this flow ends here, and otherwise enters step 5)；The sub-area division number that wherein operation of power networks department provides
The numerical value of Itermax is to be computed analysis grid short circuit level by operation of power networks department to determine；
All units being identified as in the sub-area division of Iter are constituted a set, referred to as Iter power grids point by step 5)
Area's unit set, and all units being arranged in Iter sub-area division unit set overfill power operation；
Step 6) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to this
Unit contributes subtract 5 the percent of the unit rated capacity at present；
Step 7) calculates electric network swim using Load flow calculation tool BPA, with judge to be identified as Iter sub-area division whether
Meet " N-1 " verification, if so, entering step 8), otherwise enters step 9)；
Step 8) judges whether the largest number of unit output is 0 in Iter sub-area division unit set, if so, should
Unit is rejected from Iter sub-area division unit set, is then transferred to step 6), is otherwise directly transferred to step 6)；
Step 9) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to the machine
Group contributes add 5 the percent of the unit rated capacity at present, is then transferred to step 3)；
Step 10) terminates.
In step 1), the weighting factor method is referred to the primary energy consumption amount under unit unit quantity of electricity, carbon row
High-volume weight is disposed as 0.5, and weighted sum obtains the comprehensive weight of each unit as a result, according to comprehensive weight as a result, to each
Unit starts number consecutively, and the bigger unit of comprehensive weight result, number is bigger, and it is poorer to represent unit energy-saving and emission-reduction benefit.
In step 7), the satisfaction " N-1 " verification refer to any generator being identified as in the sub-area division of Iter,
When circuit or main transformer fault-free disconnect, the stable operation of power grid can be kept, and other elements is not caused to be more than defined accident mistake
The requirement of load and voltage tolerance.
On the one hand the present invention maximumlly receives external electric power, a side under the premise of ensureing power network safety operation
Face fully considers energy-output ratio, emission behaviour etc. under the unit unit quantity of electricity of urban distribution network local, reduces local unit discharge,
A kind of urban distribution network local unit output adjustable strategies considering energy-saving and emission-reduction benefit are formulated.The unit output that the invention is formulated
Adjustable strategies are conducive to alleviation urban area environment and increasingly sharpen and haze weather problem, provided for urban distribution network unit operation
Helpful reference.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (3)
1. a kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit, it is characterised in that：The consideration is energy saving to be subtracted
The power grid unit output method of adjustment for arranging benefit includes the following steps executed in order：
Step 1) utilizes weighting according to primary energy consumption amount, carbon emission amount under certain urban distribution network local unit unit quantity of electricity
Y-factor method Y is ranked up number to local unit；
The mark Iter=0 of sub-area division is arranged in step 2)；
Step 3) enables Iter=Iter+1；
Step 4) judges whether mark Iter is more than the sub-area division number Itermax that operation of power networks department provides, if so, into
Step 10), this flow end here, and otherwise enter step 5)；The sub-area division number Itermax that wherein operation of power networks department provides
Numerical value be by operation of power networks department be computed analysis grid short circuit level determine；
All units being identified as in the sub-area division of Iter are constituted a set, referred to as Iter sub-area divisions machine by step 5)
Group set, and all units being arranged in Iter sub-area division unit set overfill power operation；
Step 6) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to the unit
It contributes at present and subtracts 5 the percent of the unit rated capacity；
Step 7) calculates electric network swim using Load flow calculation tool BPA, to judge whether the sub-area division for being identified as Iter meets
" N-1 " is verified, if so, entering step 8), is otherwise entered step 9)；
Step 8) judges whether the largest number of unit output is 0 in Iter sub-area division unit set, if so, by the unit
It is rejected from Iter sub-area division unit set, is then transferred to step 6), is otherwise directly transferred to step 6)；
Step 9) chooses the largest number of unit in Iter sub-area division unit set, and the unit output is arranged and is equal to the unit mesh
Preceding 5 percent to contribute plus the unit rated capacity, are then transferred to step 3)；
Step 10) terminates.
2. the power grid unit output method of adjustment according to claim 1 for considering energy-saving and emission-reduction benefit, it is characterised in that：
In step 1), the weighting factor method refers to primary energy consumption amount, the carbon emission amount weight under unit unit quantity of electricity is equal
Be set as 0.5, and weighted sum obtain the comprehensive weight of each unit as a result, according to comprehensive weight as a result, to each unit start according to
Secondary number, the bigger unit of comprehensive weight result, number is bigger, and it is poorer to represent unit energy-saving and emission-reduction benefit.
3. the power grid unit output method of adjustment according to claim 1 for considering energy-saving and emission-reduction benefit, it is characterised in that：
In step 7), the satisfaction " N-1 " verification refers to any generator, circuit or the main transformer being identified as in the sub-area division of Iter
When fault-free disconnects, the stable operation of power grid can be kept, and other elements is not caused to be more than defined accident overload and voltage
The requirement of tolerance.
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| CN201610650417.1A CN106208047B (en) | 2016-08-08 | 2016-08-08 | A kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit |
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| CN201610650417.1A CN106208047B (en) | 2016-08-08 | 2016-08-08 | A kind of power grid unit output method of adjustment considering energy-saving and emission-reduction benefit |
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| CN106208047A CN106208047A (en) | 2016-12-07 |
| CN106208047B true CN106208047B (en) | 2018-08-17 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930351A (en) * | 2012-10-26 | 2013-02-13 | 安徽省电力公司 | Comprehensive energy-conservation optimal operation daily plan generation method |
| CN104484543A (en) * | 2014-07-10 | 2015-04-01 | 国家电网公司 | Unit comprehensive operation evaluation method taking energy saving and emission reduction and just, fair and open scheduling into consideration |
| CN105528466A (en) * | 2014-09-28 | 2016-04-27 | 国家电网公司 | Wind power optimal planning modeling method considering adaptability and economy of power system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7942008B2 (en) * | 2006-10-09 | 2011-05-17 | General Electric Company | Method and system for reducing power plant emissions |
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- 2016-08-08 CN CN201610650417.1A patent/CN106208047B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930351A (en) * | 2012-10-26 | 2013-02-13 | 安徽省电力公司 | Comprehensive energy-conservation optimal operation daily plan generation method |
| CN104484543A (en) * | 2014-07-10 | 2015-04-01 | 国家电网公司 | Unit comprehensive operation evaluation method taking energy saving and emission reduction and just, fair and open scheduling into consideration |
| CN105528466A (en) * | 2014-09-28 | 2016-04-27 | 国家电网公司 | Wind power optimal planning modeling method considering adaptability and economy of power system |
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| CN106208047A (en) | 2016-12-07 |
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