CN110880754A - Method and system for determining blocked electric quantity of whole network - Google Patents
Method and system for determining blocked electric quantity of whole network Download PDFInfo
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Abstract
The invention provides a method and a system for determining blocked electric quantity of a whole network, comprising the following steps: dividing all wind power plants into a plurality of wind power plant groups according to section constraints, and calculating the available generating power of each wind power plant group; determining the theoretical power generation power of the whole grid and the available power generation power of all wind power plants based on the available power generation power of each wind power plant group; determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants; wherein, the electric quantity of being hindered in whole net includes: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity. By adopting the method and the device, the whole-network wind power blocked electric quantity can be accurately calculated and obtained, and the whole-network section blocked electric quantity and the whole-network peak-shaving blocked electric quantity can be distinguished.
Description
Technical Field
The invention belongs to the technical field of evaluation of wind power theoretical power generation capacity and utilization blocked electric quantity thereof, and particularly relates to a method and a system for determining the full-network blocked electric quantity.
Background
The random fluctuation of wind power causes the power system to have peak regulation and grid frame constraint, so that a certain wind abandoning and electricity limiting problem exists in partial areas. The wind power theoretical power generation capacity evaluation and the limited electric quantity calculation are carried out, and the problems faced by wind power utilization can be scientifically evaluated, so that corresponding countermeasures are researched, and the healthy development of wind power is promoted. At present, a mature theoretical generating power and limited electric quantity evaluation method for a wind power plant exists, but the calculation of the blocked electric quantity of a power grid is complex and cannot be simply obtained through the limited total sum of the wind power plant, and a method for determining the theoretical generating power and the blocked electric quantity of the whole power grid is lacked.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for determining the blocked electric quantity of the whole network, which is improved by comprising the following steps:
dividing all wind power plants into a plurality of wind power plant groups according to section constraints, and calculating the available generating power of each wind power plant group;
determining the theoretical power generation power of the whole grid and the available power generation power of all wind power plants based on the available power generation power of each wind power plant group;
determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein the full grid blocked power comprises: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
In a first preferred aspect of the present invention, the improvement wherein the determining of the theoretical generated power of the whole grid based on the available generated power of each wind farm group comprises:
based on the available generated power of each wind power plant group and the level of the corresponding section, correcting the available generated power of each section wind power plant group according to the sequence from a low level to a high level;
excluding the uppermost section, removing the wind power plant groups corresponding to the other sections in the nested sections;
and summing the available power generation power of each section to obtain the theoretical power generation power of the whole network.
In a second preferred aspect of the present invention, the improvement wherein the correction of the available generated power of each cross-section wind farm group in order from a lower hierarchy level to a higher hierarchy level based on the available generated power of each wind farm group and the hierarchy level of the corresponding cross-section comprises:
if the multi-level nested sections exist in the currently calculated sections, correcting the available generating power of the wind power plant group with the upper level of sections according to the available generating power of the wind power plant group with the lower level of sections in the multi-level nested sections;
and if a plurality of lower sections exist in the currently calculated sections, merging the sections until the available generated power of the wind power plant group corresponding to the uppermost section constraint is calculated.
In a third preferred embodiment of the present invention, the improvement is that the calculation formula for correcting the available generated power of the wind farm group of the previous stage cross section according to the available generated power of the wind farm group of the next stage cross section is as follows:
wherein s represents that the lower section corresponds to the wind farm group, s' represents that the upper section corresponds to the wind farm group, RsAvailable generated power, R, for a group s of wind farmss′Is the available generated power theta of the wind farm group ssIs the set of all wind farms in the wind farm group s, thetas'Is the set of all wind farms in the wind farm group s', PL,s’Limit value, L, for the corresponding constraint profile of the wind farm group ss'The current load of the wind power plant group s 'under the corresponding constraint section, and Gs' is the output power of other power supplies under the corresponding constraint section of the wind power plant group s ', P'jThe generated power is available for wind farm j.
In a fourth preferred embodiment of the present invention, the improvement is that the calculation formula of the available generated power of the wind farm group is as follows:
in the formula, RsIs the available generated power of the wind farm group s, thetasIs the set of all wind farms in the wind farm group s, PL,sLimiting value, L, of corresponding constraint section for wind farm group ssFor the wind farm group s corresponding to the current load under the constraint section, GsIs the actual output of other power supplies under the corresponding constraint section of the wind power plant group s, P'jThe generated power is available for wind farm j.
The fifth preferred technical scheme provided by the invention has the improvement that the method for determining the blocked electric quantity of the section of the whole network based on the theoretical generated power of the whole network and the available generated power of all wind power plants comprises the following steps:
calculating the difference of subtracting the theoretical generating power of the whole network from the sum of the available generating power of all the wind power plants to obtain the blocked power of the section of the whole network;
and integrating the blocked power of the whole network section to obtain the blocked power of the whole network section.
The improvement of the sixth preferred technical scheme provided by the invention is that the full-grid peak-shaving blocked electric quantity is determined based on the full-grid theoretical generated power and the available generated power of all wind power plants, and the method comprises the following steps:
calculating the difference between the theoretical power generation power and the actual power generation power of the whole grid to obtain the peak-shaving blocked power of the whole grid;
and integrating the full-network peak-shaving blocked power to obtain the full-network peak-shaving blocked power.
Based on the same invention concept, the invention also provides a system for determining the blocked electric quantity of the whole network, which comprises: the device comprises a wind power plant group power module, a theoretical power module and a blocked electric quantity module;
the wind power plant group power module is used for dividing all wind power plants into a plurality of wind power plant groups according to section constraints and calculating the available generating power of each wind power plant group;
the theoretical power module is used for determining the total network theoretical generated power and the available generated power of all wind power plants based on the available generated power of each wind power plant group;
the blocked electric quantity module is used for determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein the full grid blocked power comprises: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
In a seventh preferred aspect of the present invention, the improvement is that the theoretical power module includes: the system comprises a hierarchy correction unit, a rejection unit and a full-network theoretical power generation unit;
the hierarchy correction unit is used for correcting the available generating power of each section wind power plant group according to the sequence from a low hierarchy to a high hierarchy based on the available generating power of each wind power plant group and the hierarchy of the corresponding section;
the removing unit is used for removing the wind power plant groups corresponding to the rest sections in the nested sections except the uppermost section;
and the whole-network theoretical power generation power unit is used for summing the available power generation power of each section to obtain the whole-network theoretical power generation power.
In an eighth preferred embodiment of the present invention, the hierarchy modification unit includes: a multi-level nested sub-unit and a multi-level sub-unit;
the multilevel nested sub-unit is used for correcting the available generating power of the wind power plant group with the upper level of the section according to the available generating power of the wind power plant group with the lower level of the section in the multilevel nested section if the multilevel nested section exists in the section calculated currently;
and the multiple lower-level subunits are used for merging if a plurality of lower-level sections exist in the currently calculated sections until the available generated power of the wind power plant group corresponding to the uppermost-level section constraint is calculated.
Compared with the closest prior art, the invention has the following beneficial effects:
the invention provides a method and a system for determining blocked electric quantity of a whole network, comprising the following steps: dividing all wind power plants into a plurality of wind power plant groups according to section constraints, and calculating the available generating power of each wind power plant group; determining the theoretical power generation power of the whole grid and the available power generation power of all wind power plants based on the available power generation power of each wind power plant group; determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants; wherein, the electric quantity of being hindered in whole net includes: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity. By adopting the method and the device, the whole-network wind power blocked electric quantity can be accurately calculated and obtained, and the whole-network section blocked electric quantity and the whole-network peak-shaving blocked electric quantity can be distinguished.
Drawings
Fig. 1 is a schematic flow chart of a method for determining blocked power of a whole network according to the present invention;
fig. 2 is a schematic diagram of a basic structure of a system for determining a total grid blocked power according to the present invention;
fig. 3 is a detailed structural schematic diagram of a system for determining a total grid blocked power amount according to the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example 1:
the flow diagram of the method for determining the blocked electric quantity of the whole network provided by the invention is shown in fig. 1, and the method comprises the following steps:
step 1: dividing all wind power plants into a plurality of wind power plant groups according to section constraints, and calculating the available generating power of each wind power plant group;
step 2: determining the theoretical power generation power of the whole grid and the available power generation power of all wind power plants based on the available power generation power of each wind power plant group;
and step 3: determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein, the electric quantity of being hindered in whole net includes: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
Specifically, the method for determining the theoretical power generation power of the whole grid comprises the following steps:
step 101: and dividing all the wind power plants into different wind power plant groups according to the section constraint, counting S wind power plant groups, and calculating the available generating power of each wind power plant group. The section constraint and the wind farm group division are changed along with the change of the operation mode, namely the section constraint is determined according to the operation mode of the power grid. The calculation formula of the available generated power of the wind power plant group is as follows:
in the formula, RsAvailable power generation for the wind farm group S (S ═ 1,2, … S), ΘsIs the set of all wind farms in the wind farm group s, PL,sLimiting value, L, of corresponding constraint section for wind farm group ss、GsRespectively the current load under the constraint section and the actual output, P ', of other power sources'jFor the available generated power of the wind farm j, the wind speed of the cabin can be calculated. Section-independent wind farm group PL,sThe value is infinite.
Step 102: and in the multi-level nested sections, correcting the available generating power of the wind power field group with the upper level section according to the available generating power of the wind power field group with the lower level section, merging if a plurality of lower level sections exist, and calculating the available generating power of the wind power field group corresponding to the uppermost level constraint section. The specific calculation formula is as follows:
wherein s represents a lower section corresponding to the wind farm group, s' represents an upper section corresponding to the wind farm group, and Rs′Is the available generated power theta of the wind farm group ss'Is the set of all wind farms in the wind farm group s', PL,s’Limit value, L, for the corresponding constraint profile of the wind farm group ss'The current load of the wind power plant group s 'under the corresponding constraint section, and Gs' is the output power of other power supplies under the corresponding constraint section of the wind power plant group s ', P'jThe generated power is available for wind farm j. L iss'And Gs' loads and other power outputs including all lower sections
Step 103: excluding the uppermost-level section, eliminating wind power plant groups corresponding to other sections in the nested sections, wherein the number of the wind power plant groups is changed into S', and calculating the theoretical generating power of the whole network:
in the formula, P' is the theoretical generated power of the whole network, RsIs the available generated power of the wind farm group s.
According to the theoretical generated power of whole net, can further obtain whole net section electric quantity of being hindered, include:
step 104 a: subtracting the theoretical generating power of the whole grid from the sum of the available generating power of all the wind power plants to obtain the blocked power of the section of the whole grid, wherein the power is shown as the following formula:
in the formula (I), the compound is shown in the specification,ΔPGrepresenting the total grid section blocked power, N being the number of grid-connected wind power plants in the grid, P'jAnd representing the usable generated power of the jth wind power plant, and P' represents the theoretical generated power of the whole grid.
Step 104 a: obtaining the blocked electric quantity of the whole network section through the blocked electric integration of the whole network section as shown in the following formula:
in the formula,. DELTA.PG,iIs the i-th moment of the blocked power of the section of the whole network, EGAnd n is the number of samples in the statistical time period, and delta t is the time resolution.
According to the theoretical generating power of the whole network, the blocked electric quantity of the whole network peak shaving can be further obtained, and the method comprises the following steps:
step 103 b: calculating the peak-shaving blocked power of the whole network according to the difference between the theoretical generating power and the actual generating power of the whole network, wherein the calculation formula is as follows:
in the formula,. DELTA.PSFor the full-network peak-shaving blocked power, P' represents the full-network theoretical generated power, TjAnd f, actual power generation of the wind power plant j, and N is the number of grid-connected wind power plants in the grid.
Step 104 b: obtaining the whole network peak regulation blocked electric quantity through the whole network peak regulation blocked electric power integration, wherein the calculation formula is as follows:
in the formula,. DELTA.PS,iFor the i-th moment of the full network peak shaving blocked power, ESAnd n is the number of samples in the statistical time period, and delta t is the time resolution.
Example 2:
based on the same invention concept, the invention also provides a system for determining the blocked electric quantity of the whole network, and repeated parts are not repeated because the principle of solving the technical problems of the devices is similar to the method for determining the blocked electric quantity of the whole network.
The basic structure of the system is shown in fig. 2, and comprises: the device comprises a wind power plant group power module, a theoretical power module and a blocked electric quantity module;
the wind power plant group power module is used for dividing all wind power plants into a plurality of wind power plant groups according to section constraints and calculating the available generating power of each wind power plant group;
the theoretical power module is used for determining the total network theoretical generated power and the available generated power of all the wind power plants based on the available generated power of each wind power plant group;
the blocked electric quantity module is used for determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein, the electric quantity of being hindered in whole net includes: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
The detailed structure of the whole network blocked power determining system is shown in fig. 3.
Wherein, theoretical power module includes: the system comprises a hierarchy correction unit, a rejection unit and a full-network theoretical power generation unit;
the hierarchy correction unit is used for correcting the available generating power of each section wind power plant group according to the sequence from a low hierarchy to a high hierarchy based on the available generating power of each wind power plant group and the hierarchy of the corresponding section;
the removing unit is used for removing the wind power plant groups corresponding to the rest sections in the nested sections except the uppermost section;
and the whole-network theoretical power generation power unit is used for summing the available power generation power of each section to obtain the whole-network theoretical power generation power.
Wherein, the hierarchy modification unit includes: a multi-level nested sub-unit and a multi-level sub-unit;
the multilevel nesting subunit is used for correcting the available generating power of the wind power plant group with the upper level of the section according to the available generating power of the wind power plant group with the lower level of the section in the multilevel nesting section if the multilevel nesting section exists in the section calculated currently;
and the multiple lower-level subunits are used for merging the current calculated sections if the plurality of lower-level sections exist in the current calculated sections until the uppermost-level section is calculated to restrict the available generated power of the corresponding wind power plant group.
Wherein, the electric quantity of being hindered module includes: the cross section blocking electric quantity unit and the peak regulation blocking electric quantity unit;
the section blocked electric quantity unit is used for calculating the whole network section blocked electric quantity;
and the peak-shaving blocking electric quantity unit is used for calculating the peak-shaving blocking electric quantity of the whole network.
Wherein, the section is hindered electric quantity unit and is included: the system comprises a whole-network section blocked power subunit and a whole-network section blocked electric quantity subunit;
the whole-grid section blocked power subunit is used for calculating the difference of the sum of the available generated power of all the wind power plants minus the theoretical generated power of the whole grid to obtain the whole-grid section blocked power;
and the whole-network section blocked electric quantity subunit is used for integrating the whole-network section blocked electric power to obtain the whole-network section blocked electric quantity.
Wherein, the peak shaver is hindered electric quantity unit and is included: the system comprises a full-network peak-shaving blocked power subunit and a full-network peak-shaving blocked electric quantity subunit;
the whole-network peak-shaving blocked power subunit is used for calculating the difference between the theoretical power generation power and the actual power generation power of the whole network to obtain the whole-network peak-shaving blocked power;
and the whole network peak-shaving blocked electric quantity subunit is used for integrating the whole network peak-shaving blocked electric power to obtain the whole network peak-shaving blocked electric quantity.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present application and not for limiting the scope of protection thereof, and although the present application is described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that after reading the present application, they can make various changes, modifications or equivalents to the specific embodiments of the application, but these changes, modifications or equivalents are all within the scope of protection of the claims to be filed.
Claims (10)
1. A method for determining blocked electric quantity of a whole network is characterized by comprising the following steps:
dividing all wind power plants into a plurality of wind power plant groups according to section constraints, and calculating the available generating power of each wind power plant group;
determining the theoretical power generation power of the whole grid and the available power generation power of all wind power plants based on the available power generation power of each wind power plant group;
determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein the full grid blocked power comprises: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
2. The method of claim 1, wherein determining the full grid theoretical generated power based on the available generated power for each wind farm group comprises:
based on the available generated power of each wind power plant group and the level of the corresponding section, correcting the available generated power of each section wind power plant group according to the sequence from a low level to a high level;
excluding the uppermost section, removing the wind power plant groups corresponding to the other sections in the nested sections;
and summing the available power generation power of each section to obtain the theoretical power generation power of the whole network.
3. The method of claim 2, wherein the modifying the available generated power of each profile wind farm group in order from a lower level to a higher level based on the available generated power of each wind farm group and the level of the corresponding profile comprises:
if the multi-level nested sections exist in the currently calculated sections, correcting the available generating power of the wind power plant group with the upper level of sections according to the available generating power of the wind power plant group with the lower level of sections in the multi-level nested sections;
and if a plurality of lower sections exist in the currently calculated sections, merging the sections until the available generated power of the wind power plant group corresponding to the uppermost section constraint is calculated.
4. The method according to claim 3, wherein the calculation formula for correcting the available generated power of the previous cross-section wind farm group according to the available generated power of the lower cross-section wind farm group is as follows:
wherein s represents that the lower section corresponds to the wind farm group, s' represents that the upper section corresponds to the wind farm group, RsAvailable generated power, R, for a group s of wind farmss′Is the available generated power theta of the wind farm group ssIs the set of all wind farms in the wind farm group s, thetas'Is the set of all wind farms in the wind farm group s', PL,s’Limit value, L, for the corresponding constraint profile of the wind farm group ss'The current load of the wind power plant group s 'under the corresponding constraint section, and Gs' is the output power of other power supplies under the corresponding constraint section of the wind power plant group s ', P'jThe generated power is available for wind farm j.
5. The method of claim 1, wherein the available generated power for the windfarm group is calculated as follows:
in the formula, RsIs the available generated power of the wind farm group s, thetasIs the set of all wind farms in the wind farm group s, PL,sLimiting value, L, of corresponding constraint section for wind farm group ssFor the wind farm group s corresponding to the current load under the constraint section, GsIs the actual output of other power supplies under the corresponding constraint section of the wind power plant group s, P'jThe generated power is available for wind farm j.
6. The method of claim 1, wherein determining the total grid section blocked power amount based on the total grid theoretical generated power and the available generated power of all wind farms comprises:
calculating the difference of subtracting the theoretical generating power of the whole network from the sum of the available generating power of all the wind power plants to obtain the blocked power of the section of the whole network;
and integrating the blocked power of the whole network section to obtain the blocked power of the whole network section.
7. The method of claim 1, wherein determining the full grid peak shaver blocked electric quantity based on the full grid theoretical generated power and the available generated power of all wind farms comprises:
calculating the difference between the theoretical power generation power and the actual power generation power of the whole grid to obtain the peak-shaving blocked power of the whole grid;
and integrating the full-network peak-shaving blocked power to obtain the full-network peak-shaving blocked power.
8. A system for determining a blocked power across a network, comprising: the device comprises a wind power plant group power module, a theoretical power module and a blocked electric quantity module;
the wind power plant group power module is used for dividing all wind power plants into a plurality of wind power plant groups according to section constraints and calculating the available generating power of each wind power plant group;
the theoretical power module is used for determining the total network theoretical generated power and the available generated power of all wind power plants based on the available generated power of each wind power plant group;
the blocked electric quantity module is used for determining the blocked electric quantity of the whole grid based on the theoretical generating power of the whole grid and the available generating power of all wind power plants;
wherein the full grid blocked power comprises: the whole network section blocked electric quantity and the whole network peak regulation blocked electric quantity.
9. The system of claim 8, wherein the theoretical power module comprises: the system comprises a hierarchy correction unit, a rejection unit and a full-network theoretical power generation unit;
the hierarchy correction unit is used for correcting the available generating power of each section wind power plant group according to the sequence from a low hierarchy to a high hierarchy based on the available generating power of each wind power plant group and the hierarchy of the corresponding section;
the removing unit is used for removing the wind power plant groups corresponding to the rest sections in the nested sections except the uppermost section;
and the whole-network theoretical power generation power unit is used for summing the available power generation power of each section to obtain the whole-network theoretical power generation power.
10. The system of claim 9, wherein the hierarchy modification unit comprises: a multi-level nested sub-unit and a multi-level sub-unit;
the multilevel nested sub-unit is used for correcting the available generating power of the wind power plant group with the upper level of the section according to the available generating power of the wind power plant group with the lower level of the section in the multilevel nested section if the multilevel nested section exists in the section calculated currently;
and the multiple lower-level subunits are used for merging if a plurality of lower-level sections exist in the currently calculated sections until the available generated power of the wind power plant group corresponding to the uppermost-level section constraint is calculated.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112488471A (en) * | 2020-11-17 | 2021-03-12 | 国网新疆电力有限公司 | New energy running state information evaluation method and system based on big data |
| CN112736964A (en) * | 2020-12-15 | 2021-04-30 | 国网江苏省电力有限公司盐城供电分公司 | Regional power grid control method based on distributed power supply access |
| CN112736963A (en) * | 2020-12-15 | 2021-04-30 | 国网江苏省电力有限公司盐城供电分公司 | Power dispatching control method based on distributed power supply access |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112488471A (en) * | 2020-11-17 | 2021-03-12 | 国网新疆电力有限公司 | New energy running state information evaluation method and system based on big data |
| CN112488471B (en) * | 2020-11-17 | 2024-06-07 | 国网新疆电力有限公司 | New energy running state information evaluation method and system based on big data |
| CN112736964A (en) * | 2020-12-15 | 2021-04-30 | 国网江苏省电力有限公司盐城供电分公司 | Regional power grid control method based on distributed power supply access |
| CN112736963A (en) * | 2020-12-15 | 2021-04-30 | 国网江苏省电力有限公司盐城供电分公司 | Power dispatching control method based on distributed power supply access |
| CN112736963B (en) * | 2020-12-15 | 2022-08-19 | 国网江苏省电力有限公司盐城供电分公司 | Power dispatching control method based on distributed power supply access |
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