CN106451540A - Power distribution network coordination control system and method - Google Patents
Power distribution network coordination control system and method Download PDFInfo
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- CN106451540A CN106451540A CN201610909506.3A CN201610909506A CN106451540A CN 106451540 A CN106451540 A CN 106451540A CN 201610909506 A CN201610909506 A CN 201610909506A CN 106451540 A CN106451540 A CN 106451540A
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- distributed energy
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- electricity
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- distributed
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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
-
- 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
- H02J3/381—Dispersed generators
-
- 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
Abstract
The invention discloses a power distribution network coordination control system and method. The method comprises the following steps: S2, a coordination controller, according to target output power of each area, controls distributed energy in the area to work so that for each area, under the condition that the output power of each distributed energy does not reach a rated value, at least one from the distributed energy with the lowest generating cost grade works at maximum output power higher than a first preset value while other distributed energy with the lowest generating cost grade works at output power higher than the first preset value; and S3, when the output power of any one of the distributed energy reaches the rated value, the output power of the distributed energy whose output power is smaller than the first preset value is increased until the output power of all the distributed energy is smaller than the rated value, wherein during the increase, the lower the generating cost level is, the higher priority the distributed energy whose output power is smaller than the first preset value has to get its output power increased under control.
Description
Technical field
The present invention relates to field of power distribution, more particularly, to a kind of power distribution network coordinated control system and method.
Background technology
Distribution system is by distribution substation（Typically the transmission voltage of electrical network is reduced to distribution voltage）, high-tension distributing line
（I.e. more than 1 kilovolt voltage）, distribution transformer, low-voltage distributing line（Less than 1 kilovolt voltage）And control protection to set accordingly
Standby composition.Distribution voltage generally has 35～60 kilovolts and 3～10 kilovolts etc..It is really directly connected with user and divides to user
The link of distribution energy.Meanwhile, distributed energy also has been widely cited in supplying electrical domain.
Active distribution technique refer in power distribution network introduce active control mechanism, with achieve a butt joint into distributed energy
Carry out optimized configuration.But distributed energy concentrates the coordination control participating in the demand of distribution scheduling operation to active distribution network
System brings great challenge.
Content of the invention
The technical problem to be solved in the present invention is how to carry out distributing rationally of active for distributed energy.
In order to solve this technical problem, the invention provides a kind of power distribution network coordinated control system, control including coordination
Device, the distributed energy being applied to each region and distributed director corresponding with each described distributed energy, each region
Be correspondingly provided with least two distributed energies, described distributed director collection obtain described distributed energy running status
Information, and fed back to described tuning controller, the state that described tuning controller feeds back according to described distributed director
Information controls described distributed energy to carry out power output, and：
Described tuning controller calculates to the unit interval cost of electricity-generating of each distributed energy, and then according to the result calculating
Determine the cost of electricity-generating grade of each distributed energy；Wherein, cost of electricity-generating is lower, and residing cost of electricity-generating level is lower；
Described tuning controller is according to the distributed energy work in the target output control area in calculated each region
Make, and then make：
For each region, the output of each distributed energy all do not reach specified in the case of, cost of electricity-generating grade is minimum
At least one of distributed energy with the output work higher than the first preset value, remaining cost of electricity-generating is elementary
Distributed energy is with the output work higher than the first preset value；Output work when wherein one of any described distributed energy
Rate arrival is specified, then increase the output that output is less than the distributed energy of the first preset value, until all distributed
The output of the energy is respectively less than specified；And, during increase, cost of electricity-generating level is lower, is more increased by priority acccess control.
Optionally, the output of each distributed energy all do not reach specified in the case of, described tuning controller enters one
Step makes, and the not least distributed energy of cost of electricity-generating grade is with the output work less than the second preset value.
Optionally, when the output of wherein one of any described distributed energy reaches specified, described regional coordination
Controller increases the output that output is less than the distributed energy of the second preset value further.
Optionally, described second preset value is less than the first preset value.
Present invention also offers a kind of power distribution network control method for coordinating, comprise the steps：
S0：There is provided tuning controller, be applied to each region distributed energy and with corresponding point of each described distributed energy
Cloth controller, each region is correspondingly provided with least two distributed energies, and described distributed director collection obtains described point
The cloth energy running state information, and fed back to described tuning controller, described tuning controller is according to described point
The status information of cloth controller feedback controls described distributed energy to carry out power output；
S1：Described tuning controller calculates to the unit interval cost of electricity-generating of each distributed energy, and then according to calculating
Result determines the cost of electricity-generating grade of each distributed energy；Wherein, cost of electricity-generating is lower, and residing cost of electricity-generating level is lower；
S2：Described tuning controller is according to the distributed energy in the target output control area in calculated each region
Work, and then make：
For each region, at least one of elementary distributed energy of cost of electricity-generating is with the output higher than the first preset value
Power works, and the elementary distributed energy of remaining cost of electricity-generating is with the output work higher than the first preset value；
S3：When the output arrival of wherein one of any described distributed energy is specified, then increase output and be less than first
The output of the distributed energy of preset value, until the output of all distributed energies is respectively less than specified；And, increase
When, cost of electricity-generating level is lower, is more increased by priority acccess control.
Optionally, the output of each distributed energy all do not reach specified in the case of, described tuning controller enters one
Step makes, and the not least distributed energy of cost of electricity-generating grade is with the output work less than the second preset value.
Optionally, when the output of wherein one of any described distributed energy reaches specified, described regional coordination
Controller increases the output that output is less than the distributed energy of the second preset value further.
Optionally, described second preset value is less than the first preset value.
The present invention considers the distributed energy of the different cost of electricity-generatings priority when participating in regional coordination, makes control
Process more conforms to cost-effectiveness requirement；On this basis, the distributed energy output that the present invention only drives cost minimum is higher
Power, remaining distributed energy exports lower-wattage, thus accomplished to meet power demand, reduces cost and equilibrium respectively simultaneously
The effect of distributed energy working strength, the service life of the whole system of effective guarantee and security performance.
Brief description
Fig. 1 is the schematic diagram of power distribution network coordinated control system in an alternate embodiment of the present invention；
Wherein, 1- distributed power source；2- distributed director；3- tuning controller；
Fig. 2 is the schematic flow sheet of power distribution network control method for coordinating in an alternate embodiment of the present invention.
Specific embodiment
Below with reference to Fig. 1 to Fig. 2, to the present invention, the power distribution network coordinated control system providing and method carry out detailed retouching
State, its be optional embodiment of the present invention it is believed that those skilled in the art should not the present invention spirit and content scope
Interior, it can be modified and polish.
Refer to Fig. 1, the invention provides a kind of power distribution network coordinated control system, including tuning controller 3, be applied to respectively
The distributed energy 1 in region and distributed director 2 corresponding with each described distributed energy 1, each region is correspondingly provided with
At least two distributed energies 1, the collection of described distributed director 2 obtain described distributed energy 1 running state information,
And being fed back to described tuning controller 3, described tuning controller 3 is believed according to the state that described distributed director 2 feeds back
Breath controls described distributed energy 1 to carry out power output, and wherein, distributed director 2 can be enumerated as photovoltaic generation, gas turbine
And energy-storage system etc..
And：
Described tuning controller 3 calculates to the unit interval cost of electricity-generating of each distributed energy 1, and this calculating can be according to going through
Records of the Historian record estimation prediction, also can be according to based on the record of actual working condition or modeling or based on optimum warp
Ji benefit goal be calculated with algorithm, army of the present invention its specifically limited, as long as being calculated, just without departing from this
Bright protection domain, and then the cost of electricity-generating grade of each distributed energy 1 is determined according to the result calculating；Wherein, cost of electricity-generating
Lower, residing cost of electricity-generating level is lower；
Described tuning controller 3 is according to the distributed energy 1 in the target output control area in calculated each region
Work, and then make：
For each region, the output of each distributed energy 1 all do not reach specified in the case of, cost of electricity-generating grade is minimum
At least one of distributed energy 1 with the peak power output work higher than the first preset value, remaining cost of electricity-generating grade
Minimum distributed energy is with the output work higher than the first preset value；At least one of designated herein, it is chosen as one,
This selection, because it is same grade, can be random, and then is directed to the elementary distributed energy of cost of electricity-generating,
Also there is with different levels design；In further alternative embodiment, described tuning controller further such that, cost of electricity-generating grade is non-
Minimum distributed energy is with the output work less than the second preset value.
When the output of wherein one of any described distributed energy 1 reaches specified, then increase output and be less than the
The output of the distributed energy 1 of one preset value, until the output of all distributed energies 1 is respectively less than specified；And,
During increase, cost of electricity-generating level is lower, is more increased by priority acccess control.In further alternative embodiment, described regional coordination control
Device 3 processed increases the output that output is less than the distributed energy 1 of the second preset value further.
Wherein, described second preset value is less than the first preset value.
The present invention distinguishes the minimum distributed energy of cost and carries out dividing based on preset value with not least distributed energy
Level controls management, effectively achieves cost control and the balance of balanced operation intensity.
Refer to Fig. 2, based on system above, present invention also offers a kind of power distribution network control method for coordinating, including as follows
Step：
S0：There is provided tuning controller, be applied to each region distributed energy and with corresponding point of each described distributed energy
Cloth controller, each region is correspondingly provided with least two distributed energies, and described distributed director collection obtains described point
The cloth energy running state information, and fed back to described tuning controller, described tuning controller is according to described point
The status information of cloth controller feedback controls described distributed energy to carry out power output；
S1：Described tuning controller calculates to the unit interval cost of electricity-generating of each distributed energy, and then according to calculating
Result determines the cost of electricity-generating grade of each distributed energy；Wherein, cost of electricity-generating is lower, and residing cost of electricity-generating level is lower；
S2：Described tuning controller is according to the distributed energy in the target output control area in calculated each region
Work, and then make：
For each region, the output of each distributed energy all do not reach specified in the case of, cost of electricity-generating grade is minimum
At least one of distributed energy with the output work higher than the first preset value, remaining cost of electricity-generating is elementary
Distributed energy is with the output work higher than the first preset value；
Wherein, described tuning controller further such that, the not least distributed energy of cost of electricity-generating grade is with pre- less than second
If the output work of value.
S3：When the output arrival of wherein one of any described distributed energy is specified, then increase output and be less than
The output of the distributed energy of the first preset value, until the output of all distributed energies is respectively less than specified；And,
During increase, cost of electricity-generating level is lower, is more increased by priority acccess control；
Wherein, described area coordination control model device increases the output that output is less than the distributed energy of the second preset value further
Power.
In sum, to consider the distributed energy of different cost of electricity-generatings preferentially suitable when participating in regional coordination for the present invention
Sequence, makes control process more conform to cost-effectiveness requirement；On this basis, the present invention only drives the minimum distributed energy of cost defeated
Go out higher power, remaining distributed energy exports lower-wattage, thus accomplished to meet simultaneously power demand, reduces cost with
And equalize effect, the service life of the whole system of effective guarantee and the security performance of each distributed energy working strength.
Claims (8)
1. a kind of power distribution network coordinated control system it is characterised in that：Including tuning controller, the distributed energy that is applied to each region
Source and distributed director corresponding with each described distributed energy, each region is correspondingly provided with least two distributed energy
Source, the collection of described distributed director obtain described distributed energy running state information, and fed back to described association
Adjust controller, described tuning controller controls described distributed energy to enter according to the status information that described distributed director feeds back
Row power output, and：
Described tuning controller calculates to the unit interval cost of electricity-generating of each distributed energy, and then according to the result calculating
Determine the cost of electricity-generating grade of each distributed energy；Wherein, cost of electricity-generating is lower, and residing cost of electricity-generating level is lower；
Described tuning controller is according to the distributed energy work in the target output control area in calculated each region
Make, and then make：
For each region, at least one of elementary distributed energy of cost of electricity-generating is with the maximum higher than the first preset value
Output works, and the elementary distributed energy of remaining cost of electricity-generating is with the output work higher than the first preset value
Make；When the output arrival of wherein one of any described distributed energy is specified, then increase output and preset less than first
The output of the distributed energy of value, until the output of all distributed energies is respectively less than specified；And, during increase,
Cost of electricity-generating level is lower, is more increased by priority acccess control.
2. power distribution network coordinated control system as claimed in claim 1 it is characterised in that：The output of each distributed energy is equal
Do not reach specified in the case of, described tuning controller further such that, the not least distributed energy of cost of electricity-generating grade with
Output work less than the second preset value.
3. power distribution network coordinated control system as claimed in claim 1 it is characterised in that：When wherein one of any described distributed
When the output of the energy reaches specified, described area coordination control model device increases output further and is less than the second preset value
The output of distributed energy.
4. power distribution network coordinated control system as claimed in claim 2 or claim 3 it is characterised in that：Described second preset value is less than the
One preset value.
5. a kind of power distribution network control method for coordinating it is characterised in that：Comprise the steps：
S0：There is provided tuning controller, be applied to each region distributed energy and with corresponding point of each described distributed energy
Cloth controller, each region is correspondingly provided with least two distributed energies, and described distributed director collection obtains described point
The cloth energy running state information, and fed back to described tuning controller, described tuning controller is according to described point
The status information of cloth controller feedback controls described distributed energy to carry out power output；
S1：Described tuning controller calculates to the unit interval cost of electricity-generating of each distributed energy, and then according to calculating
Result determines the cost of electricity-generating grade of each distributed energy；Wherein, cost of electricity-generating is lower, and residing cost of electricity-generating level is lower；
S2：Described tuning controller is according to the distributed energy in the target output control area in calculated each region
Work, and then make：
For each region, at least one of elementary distributed energy of cost of electricity-generating is with the maximum higher than the first preset value
Output works, and the elementary distributed energy of remaining cost of electricity-generating is with the output work higher than the first preset value
Make；
S3：When the output arrival of wherein one of any described distributed energy is specified, then increase output and be less than first
The output of the distributed energy of preset value, until the output of all distributed energies is respectively less than specified；And, increase
When, cost of electricity-generating level is lower, is more increased by priority acccess control.
6. power distribution network control method for coordinating as claimed in claim 5 it is characterised in that：The output of each distributed energy is equal
Do not reach specified in the case of, described tuning controller further such that, the not least distributed energy of cost of electricity-generating grade with
Output work less than the second preset value.
7. power distribution network control method for coordinating as claimed in claim 5 it is characterised in that：When wherein one of any described distributed
When the output of the energy reaches specified, described area coordination control model device increases output further and is less than the second preset value
The output of distributed energy.
8. power distribution network control method for coordinating as claimed in claims 6 or 7 it is characterised in that：Described second preset value is less than the
One preset value.
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| CN201610909506.3A CN106451540A (en) | 2016-10-19 | 2016-10-19 | Power distribution network coordination control system and method |
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| CN201610909506.3A CN106451540A (en) | 2016-10-19 | 2016-10-19 | Power distribution network coordination control system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005817A (en) * | 2010-09-25 | 2011-04-06 | 中国农业大学 | Uninterruptible power supply device based on microgrid and dispatching control method thereof |
| CN103151796A (en) * | 2013-02-06 | 2013-06-12 | 上海交通大学 | Region coordinated control system and region coordinated control method based on active power distribution network |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
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- 2016-10-19 CN CN201610909506.3A patent/CN106451540A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005817A (en) * | 2010-09-25 | 2011-04-06 | 中国农业大学 | Uninterruptible power supply device based on microgrid and dispatching control method thereof |
| CN103151796A (en) * | 2013-02-06 | 2013-06-12 | 上海交通大学 | Region coordinated control system and region coordinated control method based on active power distribution network |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
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Application publication date: 20170222 |