CN108258730A - Wind heating system and method are abandoned under a kind of electric network coordination scheduling - Google Patents
Wind heating system and method are abandoned under a kind of electric network coordination scheduling Download PDFInfo
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Classifications
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- H02J3/386—
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The present invention relates to a kind of scheduling of electric network coordination it is lower abandon wind heating method, applied to power grid occur it is critical abandon wind when, carry out electricity heat accumulation to abandoning wind-powered electricity generation amount.Fully consider the information such as power grid current operating conditions, wind-powered electricity generation prediction is contributed, conventional power unit is adjustable contributes, electric heat accumulation residual capacity, when judge power grid be in it is critical abandon wind state when, wind-powered electricity generation amount will be abandoned by the coordinated scheduling of control centre and stored in the form of thermal energy.The present invention can also improve traditional heating system pollution on the environment by regulating and controlling the coordinated scheduling at center accurately using wind energy is abandoned.Compared to more current heating system, significant improvement is achieved in terms of energy saving and environmental protection.
Description
Technical field
The invention belongs to power scheduling fields, are related to abandoning wind heating system and method under a kind of electric network coordination scheduling.
Background technology
By the sending out of electric system, at the same the characteristic completed influenced, randomness that new energy is contributed, fluctuation and
Having a rest property needs to be adjusted by electric system is unified, after new energy accesses electric system at high proportion, increases the burden of system adjustment.Electricity
The principle of Force system balance is to adjust the variation of normal power supplies output follow load, maintains the dynamic equilibrium of electric system, power train
The wind of abandoning for leading to new energy is abandoned into light during regulating power deficiency of uniting.New energy dissolves problem and system adjustment ability is closely related.
Northern China needs to heat in winter, this results in a large amount of cogeneration units can not due to undertaking heat supply task
Its output is reduced, this is the serious major reason of winter wind-abandoning phenomenon, therefore is badly in need of energy while heating is ensured
Enough methods for significantly promoting utilization of new energy resources rate.
Invention content
In order to solve the above-mentioned problems of the prior art, on the one hand, under being dispatched the present invention provides a kind of electric network coordination
Abandon wind heating system, the system mainly include following mechanism：Wind power plant 1, control centre 3, electric heat accumulation 5 and conventional power unit 8；Respectively
Communication mode between mechanism is as follows：Wind farm power prediction 2, electric heat accumulation residual capacity 4, heat accumulation plan 6, conventional power unit are contributed
Plan 7, conventional power unit is adjustable contribute 9, wind power plant abandon wind instruction 10.
Control centre 3 abandons the core institution of wind heating method as this, respectively with wind power plant 1, electric heat accumulation 5 and conventional power unit
8 are attached communication；
Control centre 3 receives the wind farm power prediction 2 that wind power plant 1 is sent out, and is decided whether after a series of judgements
Wind is abandoned, and sends wind power plant to wind power plant 1 and abandons wind instruction 10；
Control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation is formulated according to the size for abandoning wind-powered electricity generation amount
Plan 6, and send heat accumulation plan 6 to electric heat accumulation 5；
Control centre 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and is determined according to the size for abandoning wind-powered electricity generation amount
Whether conventional power unit output is adjusted, and formulation conventional power unit, which is contributed, plans 7, and send conventional power unit to conventional power unit 8 and contribute and plan
7；
Wind power plant 1 continues to send wind farm power prediction 2 to control centre 3, when control centre 3 is according to currently received wind
When electric field power prediction 2 judges that wind power plant 1 will abandon wind and ration the power supply, just ration the power supply state in critical wind of abandoning, given according to calculating
Go out prediction and abandon wind-powered electricity generation amount.It is critical abandon wind ration the power supply state when, control centre 3 receive conventional power unit 8 send conventional power unit may bring up
Power 9, comparison prediction abandon the size of wind-powered electricity generation amount and the adjustable output 9 of conventional power unit.If output 9 that conventional power unit is adjustable, which is more than prediction, abandons wind
Electricity then adjusts conventional power unit output and is rationed the power supply with preventing to abandon wind；If output 9 that conventional power unit is adjustable, which is less than prediction, abandons wind-powered electricity generation amount
Or the output of conventional power unit 8 cannot be adjusted, then prepares startup electrical heat-storing device and stored to abandoning wind-powered electricity generation amount.Start electrical heat-storing device
Before, control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent, and comparison prediction abandons wind-powered electricity generation amount and electric heat accumulation residual capacity
4 size.If electric heat accumulation residual capacity 4, which is more than prediction, abandons wind-powered electricity generation amount, it need not carry out abandoning wind and ration the power supply, wind-powered electricity generation amount will be abandoned and all used
In electric heat accumulation；If electric heat accumulation residual capacity 4 is less than prediction and abandons wind-powered electricity generation amount, first by the thermal energy storage of electrical heat-storing device to maximum
Capacity, then remaining wind energy is carried out abandoning wind and is rationed the power supply.
Method of discrimination is as follows according to used in above system：
Control centre 3 receives the wind farm power prediction 2 that wind power plant 1 is sent out, and is decided whether after a series of judgements
Wind is abandoned, and sends wind power plant to wind power plant 1 and abandons wind instruction 10, judgment basis is as follows：
Wherein, Pwind_forecastFor wind-powered electricity generation field prediction generated output, Pwind_permitAllow for wind power plant in the case of not adjusting
Maximum power generation, Padjustable_maxFor the maximum adjustable output of conventional power unit, Pheat_maxFor electric heat accumulation maximal input.
The confined generated output of wind power plant is as follows after wind is abandoned in generation：
Pwind_limit=Pwind_permit+Padjustable_max+Pheat_max
Wherein, Pwind_limittGenerated output after wind is rationed the power supply is abandoned for wind power plant.
Control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation is formulated according to the size for abandoning wind-powered electricity generation amount
Plan 6, and heat accumulation plan 6 is sent to electric heat accumulation 5, electric heat accumulation power calculation is according to as follows：
Wherein, Pheat_storageFor electric heat accumulation input power, Pwind_currentFor the current generated output of wind power plant,
Cheat_currentFor the current memory capacity of electric heat accumulation, Cheat_fullFor electric heat accumulation maximum capacity.
Control centre 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and is determined according to the size for abandoning wind-powered electricity generation amount
Whether conventional power unit output is adjusted, and formulation conventional power unit, which is contributed, plans 7, and send conventional power unit to conventional power unit 8 and contribute and plan
7, the calculation basis for output that conventional power unit is adjustable is as follows：
Padjustable_max=(PCoal_current-PCoal_min)+(Pcontact_max-Pcontact_current)
Wherein, Padjustable_maxFor the maximum adjustable output of conventional power unit, PCoal_currentIt currently contributes for fired power generating unit,
PCoal_minIt contributes for fired power generating unit minimum technology, Pcontact_maxFor the maximum exportable power of interconnection, Pcontact_currentFor connection
Winding thread present output power.
In order to solve the above-mentioned problems of the prior art, on the other hand, the present invention provides a kind of scheduling of electric network coordination
Under abandon wind heating method, this method is as follows：
Wind power plant 1 continues to send wind farm power prediction 2 to control centre 3, when control centre 3 is according to currently received wind
When electric field power prediction 2 judges that wind power plant 1 will abandon wind and ration the power supply, just ration the power supply state in critical wind of abandoning, given according to calculating
Go out prediction and abandon wind-powered electricity generation amount.
It is critical abandon wind ration the power supply state when, control centre 3 receive conventional power unit 8 send conventional power unit it is adjustable contribute 9, compare
The size of wind-powered electricity generation amount and the adjustable output 9 of conventional power unit is abandoned in prediction.If output 9 that conventional power unit is adjustable, which is more than prediction, abandons wind-powered electricity generation amount,
Adjustment conventional power unit output is rationed the power supply with preventing to abandon wind；If output 9 that conventional power unit is adjustable, which is less than prediction, abandons wind-powered electricity generation amount or routine
The output of unit 8 cannot be adjusted, then prepares startup electrical heat-storing device and stored to abandoning wind-powered electricity generation amount.
Before starting electrical heat-storing device, control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent, and comparison prediction is abandoned
The size of wind-powered electricity generation amount and electric heat accumulation residual capacity 4.If electric heat accumulation residual capacity 4 is more than prediction and abandons wind-powered electricity generation amount, need not be abandoned
Wind is rationed the power supply, and will be abandoned wind-powered electricity generation amount and is completely used for electric heat accumulation；If electric heat accumulation residual capacity 4 is less than prediction and abandons wind-powered electricity generation amount, first will be electric
The thermal energy storage of heat-storing device is to maximum capacity, then remaining wind energy is carried out abandoning wind and is rationed the power supply.
It is as follows according to method of discrimination used in the above method：
Control centre 3 receives the wind farm power prediction 2 that wind power plant 1 is sent out, and is decided whether after a series of judgements
Wind is abandoned, and sends wind power plant to wind power plant 1 and abandons wind instruction 10, judgment basis is as follows：
Wherein, Pwind_forecastFor wind-powered electricity generation field prediction generated output, Pwind_permitAllow for wind power plant in the case of not adjusting
Maximum power generation, Padjustable_maxFor the maximum adjustable output of conventional power unit, Pheat_maxFor electric heat accumulation maximal input.
The confined generated output of wind power plant is as follows after wind is abandoned in generation：
Pwind_limit=Pwind_permit+Padjustable_max+Pheat_max
Wherein, Pwind_limittGenerated output after wind is rationed the power supply is abandoned for wind power plant.
Control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation is formulated according to the size for abandoning wind-powered electricity generation amount
Plan 6, and heat accumulation plan 6 is sent to electric heat accumulation 5, electric heat accumulation power calculation is according to as follows：
Wherein, Pheat_storageFor electric heat accumulation input power, Pwind_currentFor the current generated output of wind power plant,
Cheat_currentFor the current memory capacity of electric heat accumulation, Cheat_fullFor electric heat accumulation maximum capacity.
Control centre 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and is determined according to the size for abandoning wind-powered electricity generation amount
Whether conventional power unit output is adjusted, and formulation conventional power unit, which is contributed, plans 7, and send conventional power unit to conventional power unit 8 and contribute and plan
7, the calculation basis for output that conventional power unit is adjustable is as follows：
Padjustable_max=(PCoal_current-PCoal_min)+(Pcontact_max-Pcontact_current)
Wherein, Padjustable_maxFor the maximum adjustable output of conventional power unit, PCoal_currentIt currently contributes for fired power generating unit,
PCoal_minIt contributes for fired power generating unit minimum technology, Pcontact_maxFor the maximum exportable power of interconnection, Pcontact_currentFor connection
Winding thread present output power.
Advantageous effect
Wind heating method is abandoned under being dispatched the present invention provides a kind of electric network coordination, allows to abandon wind energy in electric network coordination
Scheduling is lower to carry out electric heat accumulation.The present invention can be also improved by regulating and controlling the coordinated scheduling at center accurately using wind energy is abandoned
Traditional heating system pollution on the environment.Compared to more current heating system, taken in terms of energy saving and environmental protection
Obtained significant improvement.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the implementing procedure figure of the present invention.
Specific embodiment
Specific work process for the present invention in the case of various below.If system scale is：1 capacity of wind power plant is 50MW,
Electric 5 capacity of heat accumulation is 5MW, and conventional power unit 8 can currently contribute ranging from 95MW-100MW, total load 150MW.
(1) conventional power unit 8 is contributed non-adjustable, and electric 5 residual capacity of heat accumulation is insufficient
1 output 30MW of current wind power plant, the prediction output of wind power plant 1 are up to 35MW, current 8 output 95MW of conventional power unit,
Current loads 125MW, electric 5 residual capacity 2MW of heat accumulation.
The sum of prediction wind power plant 1 output and the output of conventional power unit 8 have reached 130MW at this time, and current loads only have 125MW,
And conventional power unit 8 is contributed and be cannot be adjusted up to minimum value, electric 5 capacity of heat accumulation there remains 2MW, be not enough to receive whole wind-powered electricity generations.By
The publication instruction of control centre 3 has 2MW in the 5MW wind-powered electricity generations having more for electric heat accumulation 5, the adjustment wind-power electricity generation curve of wind power plant 1 by its
Its 3MW is discarded.
(2) conventional power unit 8 is contributed non-adjustable, and electric 5 residual capacity of heat accumulation is sufficient
1 output 30MW of current wind power plant, the prediction output of wind power plant 1 are up to 33MW, current 8 output 95MW of conventional power unit,
Current loads 125MW, electric 5 residual capacity 4MW of heat accumulation.
The sum of prediction wind power plant 1 output and the output of conventional power unit 8 have reached 128MW at this time, and current loads only have 125MW,
And conventional power unit 8 is contributed and be cannot be adjusted up to minimum value, electric 5 capacity of heat accumulation there remains 4MW, receive whole wind-powered electricity generations enough.By adjusting
The publication instruction of degree center 3, the 3MW wind-powered electricity generations having more are used for electric heat accumulation 5, without abandoning wind.
(3) conventional power unit 8 is contributed adjustable, still needs to ration the power supply after adjustment, and electric 5 residual capacity of heat accumulation is insufficient
1 output 30MW of current wind power plant, the prediction output of wind power plant 1 are up to 40MW, current 8 output 100MW of conventional power unit,
Current loads 130MW, electric 5 residual capacity 2MW of heat accumulation.
The sum of prediction wind power plant 1 output and the output of conventional power unit 8 have reached 140MW at this time, and current loads only have 130MW,
The output of conventional power unit 8 can lower 5MW, still be not enough to receive whole wind-powered electricity generations after adjustment, electric 5 capacity of heat accumulation there remains 2MW, be not enough to
Receive whole wind-powered electricity generations.Instruction is issued by control centre 3, conventional power unit 8, which is contributed, lowers 5MW, has 2MW use in the 5MW wind-powered electricity generations having more
In electric heat accumulation 5, wind power plant 1 adjusts wind-power electricity generation curve and discards other 3MW.
(4) conventional power unit 8 is contributed adjustable, still needs to ration the power supply after adjustment, and electric 5 residual capacity of heat accumulation is sufficient
1 output 30MW of current wind power plant, the prediction output of wind power plant 1 are up to 38MW, current 8 output 100MW of conventional power unit,
Current loads 130MW, electric 5 residual capacity 4MW of heat accumulation.
The sum of prediction wind power plant 1 output and the output of conventional power unit 8 have reached 138MW at this time, and current loads only have 130MW,
The output of conventional power unit 8 can lower 5MW, still be not enough to receive whole wind-powered electricity generations after adjustment, electric 5 capacity of heat accumulation there remains 4MW.By dispatching
The publication instruction of center 3, conventional power unit 8, which is contributed, lowers 5MW, and the 3MW wind-powered electricity generations having more are used for electric heat accumulation 5, without abandoning wind.
(5) conventional power unit 8 is contributed adjustable, is not required to ration the power supply after adjustment
1 output 30MW of current wind power plant, the prediction output of wind power plant 1 are up to 34MW, current 8 output 100MW of conventional power unit,
Current loads 130MW, electric 5 residual capacity 4MW of heat accumulation.
The sum of prediction wind power plant 1 output and the output of conventional power unit 8 have reached 134MW at this time, and current loads only have 130MW,
The output of conventional power unit 8 can lower 5MW, and whole wind-powered electricity generations can be received after adjustment.Instruction is issued by control centre 3, conventional power unit 8 goes out
Power lowers 5MW, without abandoning wind.
Claims (11)
1. abandon wind heating system under a kind of electric network coordination scheduling, it is characterised in that system mainly includes following mechanism：
Wind power plant 1, control centre 3, electric heat accumulation 5 and conventional power unit 8；
Communication mode between each mechanism is as follows：
Wind farm power prediction 2, electric heat accumulation residual capacity 4, heat accumulation plan 6, conventional power unit output plan 7, conventional power unit is adjustable
9, wind power plant of contributing abandons wind instruction 10；
Control centre 3 abandons the core institution of wind heating method as this, respectively with wind power plant 1, electric heat accumulation 5 and conventional power unit 8 into
Row connection communication；
Control centre 3 receives the wind farm power prediction 2 that wind power plant 1 is sent out, and decides whether to abandon wind after a series of judgements,
And it sends wind power plant to wind power plant 1 and abandons wind instruction 10；
Control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation plan is formulated according to the size for abandoning wind-powered electricity generation amount
6, and send heat accumulation plan 6 to electric heat accumulation 5；
Control centre 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and is decided whether according to the size for abandoning wind-powered electricity generation amount
It adjusts conventional power unit to contribute, formulation conventional power unit, which is contributed, plans 7, and send conventional power unit to conventional power unit 8 and contribute and plan 7.
2. abandon wind heating system under a kind of electric network coordination scheduling according to claim 1, it is characterised in that the wind
Electric field 1 continues to send wind farm power prediction 2 to control centre 3, when control centre 3 is pre- according to currently received wind power
When surveying 2 and judging that wind power plant 1 will abandon wind and ration the power supply, just ration the power supply state in critical wind of abandoning, prediction is provided according to calculating and abandons wind
Electricity.
3. abandon wind heating system under a kind of electric network coordination scheduling according to claim 2, it is characterised in that described faces
Boundary abandons wind and rations the power supply state, when it is critical abandon wind ration the power supply state when, it is adjustable that control centre 3 receives the conventional power unit that conventional power unit 8 is sent
Output 9, comparison prediction abandon the size of wind-powered electricity generation amount and the adjustable output 9 of conventional power unit；It is abandoned if output 9 that conventional power unit is adjustable is more than prediction
Wind-powered electricity generation amount then adjusts conventional power unit output and is rationed the power supply with preventing to abandon wind；If output 9 that conventional power unit is adjustable, which is less than prediction, abandons wind-powered electricity generation
Amount or the output of conventional power unit 8 cannot be adjusted, then prepare startup electrical heat-storing device and stored to abandoning wind-powered electricity generation amount.
4. abandon wind heating system under a kind of electric network coordination scheduling according to claim 3, it is characterised in that the electricity
Heat-storing device, before electrical heat-storing device is started, control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent, relatively more pre-
Survey the size for abandoning wind-powered electricity generation amount and electric heat accumulation residual capacity 4；If electric heat accumulation residual capacity 4, which is more than prediction, abandons wind-powered electricity generation amount, without into
Row abandons wind and rations the power supply, and will abandon wind-powered electricity generation amount and is completely used for electric heat accumulation；If electric heat accumulation residual capacity 4 is less than prediction and abandons wind-powered electricity generation amount, first
By the thermal energy storage of electrical heat-storing device to maximum capacity, then remaining wind energy is carried out abandoning wind and is rationed the power supply.
5. abandon wind heating system under a kind of electric network coordination scheduling according to right wants 1, it is characterised in that the scheduling
Center 3 receives the wind farm power prediction 2 that sends out of wind power plant 1, decides whether to abandon wind after a series of judgements, judge according to
According to as follows：
Wherein, Pwind_forecastFor wind-powered electricity generation field prediction generated output, Pwind_permitAllow for wind power plant in the case of not adjusting maximum
Generated output, Padjustable_maxFor the maximum adjustable output of conventional power unit, Pheat_maxFor electric heat accumulation maximal input；
The confined generated output of wind power plant is as follows after wind is abandoned in generation：
Pwind_limit=Pwind_permit+Padjustable_max+Pheat_max
Wherein, Pwind_limittGenerated output after wind is rationed the power supply is abandoned for wind power plant.
6. abandon wind heating system under a kind of electric network coordination scheduling according to right wants 1, it is characterised in that the scheduling
Center 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation plan 6 is formulated according to the size for abandoning wind-powered electricity generation amount, and to electricity
Heat accumulation 5 sends heat accumulation plan 6, and electric heat accumulation power calculation is according to as follows：
Wherein, Pheat_storageFor electric heat accumulation input power, Pwind_currentFor the current generated output of wind power plant, Cheat_currentFor
The current memory capacity of electric heat accumulation, Cheat_fullFor electric heat accumulation maximum capacity.
7. abandon wind heating system under a kind of electric network coordination scheduling according to right wants 1, it is characterised in that the scheduling
Center 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and decides whether that adjustment is conventional according to the size for abandoning wind-powered electricity generation amount
Unit output formulates conventional power unit and contributes and plans 7, and send conventional power unit output plan 7 to conventional power unit 8, and conventional power unit can
The calculation basis for recalling power is as follows：
Padjustable_max=(PCoal_current-PCoal_min)+(Pcontact_max-Pcontact_current)
Wherein, Padjustable_maxFor the maximum adjustable output of conventional power unit, PCoal_currentIt currently contributes for fired power generating unit, PCoal_min
It contributes for fired power generating unit minimum technology, Pcontact_maxFor the maximum exportable power of interconnection, Pcontact_currentIt is current for interconnection
Output power.
8. abandoning wind heating method under a kind of electric network coordination scheduling, this method is based on the system described in claim 1, feature
It is, wind power plant 1 continues to send wind farm power prediction 2 to control centre 3, when control centre 3 is according to currently received wind-powered electricity generation
When power prediction 2 judges that wind power plant 1 will abandon wind and ration the power supply, just ration the power supply state in critical wind of abandoning, provided according to calculating
Wind-powered electricity generation amount is abandoned in prediction；
It is critical abandon wind ration the power supply state when, control centre 3 receive conventional power unit 8 send conventional power unit it is adjustable contribute 9, comparison prediction
Abandon the size of wind-powered electricity generation amount and the adjustable output 9 of conventional power unit.If output 9 that conventional power unit is adjustable, which is more than prediction, abandons wind-powered electricity generation amount, adjust
Conventional power unit output is rationed the power supply with preventing to abandon wind；If output 9 that conventional power unit is adjustable, which is less than prediction, abandons wind-powered electricity generation amount or conventional power unit 8
Output cannot be adjusted, then prepares startup electrical heat-storing device and stored to abandoning wind-powered electricity generation amount；
Before starting electrical heat-storing device, control centre 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent, and comparison prediction abandons wind-powered electricity generation
The size of amount and electric heat accumulation residual capacity 4.If electric heat accumulation residual capacity 4 is more than prediction and abandons wind-powered electricity generation amount, need not carry out abandoning wind limit
Electricity will abandon wind-powered electricity generation amount and be completely used for electric heat accumulation；If electric heat accumulation residual capacity 4 is less than prediction and abandons wind-powered electricity generation amount, first by electric heat accumulation
The thermal energy storage of device is to maximum capacity, then remaining wind energy is carried out abandoning wind and is rationed the power supply.
9. abandon wind heating method under a kind of electric network coordination scheduling according to right wants 8, it is characterised in that the scheduling
Center 3 receives the wind farm power prediction 2 that sends out of wind power plant 1, decides whether to abandon wind after a series of judgements, judge according to
According to as follows：
Wherein, Pwind_forecastFor wind-powered electricity generation field prediction generated output, Pwind_permitAllow for wind power plant in the case of not adjusting maximum
Generated output, Padjustable_maxFor the maximum adjustable output of conventional power unit, Pheat_maxFor electric heat accumulation maximal input；
The confined generated output of wind power plant is as follows after wind is abandoned in generation：
Pwind_limit=Pwind_permit+Padjustable_max+Pheat_max
Wherein, Pwind_limittGenerated output after wind is rationed the power supply is abandoned for wind power plant.
10. abandon wind heating method under a kind of electric network coordination scheduling according to right wants 8, it is characterised in that the scheduling
Center 3 receives the electric heat accumulation residual capacity 4 that electric heat accumulation 5 is sent out, and heat accumulation plan 6 is formulated according to the size for abandoning wind-powered electricity generation amount, and to electricity
Heat accumulation 5 sends heat accumulation plan 6, and electric heat accumulation power calculation is according to as follows：
Wherein, Pheat_storageFor electric heat accumulation input power, Pwind_currentFor the current generated output of wind power plant, Cheat_currentFor
The current memory capacity of electric heat accumulation, Cheat_fullFor electric heat accumulation maximum capacity.
11. abandon wind heating method under a kind of electric network coordination scheduling according to right wants 8, it is characterised in that the scheduling
Center 3 receives the adjustable output 9 of conventional power unit that conventional power unit 8 is sent out, and decides whether that adjustment is conventional according to the size for abandoning wind-powered electricity generation amount
Unit output formulates conventional power unit and contributes and plans 7, and send conventional power unit output plan 7 to conventional power unit 8, and conventional power unit can
The calculation basis for recalling power is as follows：
Padjustable_max=(PCoal_current-PCoal_min)+(Pcontact_max-Pcontact_current)
Wherein, Padjustable_maxFor the maximum adjustable output of conventional power unit, PCoal_currentIt currently contributes for fired power generating unit, PCoal_min
It contributes for fired power generating unit minimum technology, Pcontact_maxFor the maximum exportable power of interconnection, Pcontact_currentIt is current for interconnection
Output power.
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