CN106374454B - A kind of modeling method of unit style power distribution network Controlling model - Google Patents
A kind of modeling method of unit style power distribution network Controlling model Download PDFInfo
- Publication number
- CN106374454B CN106374454B CN201610809151.0A CN201610809151A CN106374454B CN 106374454 B CN106374454 B CN 106374454B CN 201610809151 A CN201610809151 A CN 201610809151A CN 106374454 B CN106374454 B CN 106374454B
- Authority
- CN
- China
- Prior art keywords
- power
- unit
- distribution network
- switch
- power distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004458 analytical method Methods 0.000 claims abstract description 23
- 238000003012 network analysis Methods 0.000 claims description 8
- 238000007726 management method Methods 0.000 claims description 6
- 238000013439 planning Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000004069 differentiation Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000010937 topological data analysis Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Economics (AREA)
- Health & Medical Sciences (AREA)
- Evolutionary Computation (AREA)
- General Health & Medical Sciences (AREA)
- Geometry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- General Business, Economics & Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of unit style power distribution network Controlling model modeling methods.The whole network large-sized model is carried out reasonable cutting by the method for the present invention, realize the topology analysis model of local unit, Global Uniformity, first by way of Topology Analysis Based in standing, acquiring unit prepares the minimum analytical element and minimum analytical unit of electric network model, then switch models are successively read in, establish bus chained list, then analyze by grid, power load table, watt-hour meter and stand-by power supply table are established, to complete the foundation of unit style electricity distribution network model.Through the invention, it can reduce resource consumption according to the dynamically load of real time fail information realization partial model convenient for distribution automation applied analysis program and improve topological analysis efficiency.
Description
Technical field
The present invention relates to a kind of modeling methods of power distribution network Controlling model, especially relate to a kind of unit style power distribution network Controlling model
Modeling method belongs to field of power system.
Background technique
Conventional electrical distribution automation mostly uses the modeling pattern based on feeder unit, and the whole network as unit of feeder line is integrally built
All Distribution Network Equipments relevant to network structure are modeled in memory, form biggish topological network figure, so by mould
Topological network analysis is carried out based on this figure afterwards, this modeling pattern resource consumption is big, low efficiency, and lacks opening up for blocking logic
Flutter model.
Division of the power supply area is several distribution net units as the minimum of power distribution network operational management by unit style power supply
Logic unit is planned by unit style power distribution network being divided into multiple power supply zones, based on the analysis of power distribution network As-Is Assessment,
According to the Planning Standard of power supply area differentiation, objective net support structure of medium-voltage distribution network Connection Mode is determined, it is scientific by each power supply point
Zoning is divided into several power supply logics units, accessed using powering logic unit as medium-Voltage Distribution network planning, project management, user,
The basic unit for running control meets the highly reliable operation demand of distribution network construction, user's access.Unit style power distribution network logic is multiple
It is miscellaneous, have the characteristics that more power supplys, multi-ring network, multiple structure, traditional modeling pattern is no longer applicable in.
Summary of the invention
For the modeling method for not yet proposing unit style power distribution network Controlling model at present, the invention discloses a kind of unit styles
The modeling method of power distribution network Controlling model, to solve the above problems.
To achieve the above object, technical scheme is as follows：
A kind of modeling method of unit style power distribution network Controlling model, which is characterized in that the method includes：
Step (1), by analyzing tie lines in standing, acquiring unit prepares the minimum analytical element and most of electric network model
Small analytical unit；It is minimum analytical element with the various switches in switching station, divides minimum point with single hop bus section, busbar section in switching station
Analyse unit；Each analysis unit is made of the minimum analytical element of multiple switch；
Step (2) establishes power load table, watt-hour meter and stand-by power supply table to the carry out network analysis of system, establishes single
Member prepares electric network model；Each switching station is made of multistage bus analytical unit, is constituted by way of combining bus model
Entire unit style grid structure；The model data for successively reading in each switch establishes the chained list of each section of bus of connection, by time
Bus chained list is gone through, power load table, watt-hour meter and stand-by power supply table are established, so that obtaining unit prepares electric network model.
In the step (1), division of the power supply area is several distribution net units as power distribution network by unit style power distribution network
The minimum logic unit of operational management is planned by unit style power distribution network being divided into multiple power supply zones, with power distribution network status
Based on analysis and assessment, according to the Planning Standard of power supply area differentiation, objective net support structure of medium-voltage distribution network Connection Mode is determined, it will
Each power supply zone is divided into several power supply logics units, using logic unit of powering as medium-Voltage Distribution network planning, project management, use
The basic unit of family access, operation control meets the reliability service demand of distribution network construction, user's access.
The step (1) to stand in tie lines carry out analysis method be：Each element is by switching the shape that is connected in analysis station
At logical relation, element that will be connected forms a node, if so that a substation is divided into passive node.
In the step (2), on the basis of the network analysis that system carries out is the Topology Analysis Based in standing, whole system is analyzed
The logical relation that is formed by connection of node, the node for having electric connecting relation and route are divided into a subsystem
In, so that system is divided into several subsystems.
The switch includes power switch, user's switch, interconnection switch and bus-tie circuit breaker.
The power switch switch is connected to substation, is exported and is powered by substation.
User's switch is connected to user's lateral load or buckling.
The interconnection switch is connected to interconnection box between other switching stations or switching station.
In the step (2), the power load table is the power on the user's switch for add up all closed states, power supply
Table is the power on the interconnection switch for add up the power switch of all closed states, the bus-tie circuit breaker of inflow and inflow；Spare confession
Ammeter is added up on the power switch of all opening states, the interconnection switch of the bus-tie circuit breaker of inflow and inflow and user's switch
Power, according to power conservation law, the power of single bus section, busbar section watt-hour meter establishes power flow algorithm, carries out Load flow calculation.
The whole network large-sized model is carried out reasonable cutting by the method for the present invention, realizes local unit, the topology of Global Uniformity point
Model is analysed, so that subsequent applications analysis can reduce resource and disappear according to the dynamically load of real time fail information realization partial model
It consumes and improves topological analysis efficiency.
The present invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the unit style Modeling of Distribution Network flow chart that the present invention establishes.
Fig. 2 is a unit style power distribution network power supply unit.
Fig. 3 is the minimum analytical unit in unit style power supply unit.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to figures 1-3, according to an aspect of the present invention, a kind of modeling side of unit style power distribution network Controlling model is provided
Method, this method include：The network analysis of Topology Analysis Based and system in power distribution station.Wherein, Topology Analysis Based is that analysis is matched in power distribution station
Connected element is formed a node, thus by one by switching the logical relation for being connected and being formed by each element in power station
If substation is divided into passive node；On the basis of the network analysis of system is the Topology Analysis Based in standing, the node of whole system is analyzed
The node for having electric connecting relation and route are divided into a subsystem by the logical relation formed by connection, from
And system is divided into several subsystems.
According to the method for the present invention, after the completion of single switch defines, the model data of each switch is successively read in, the company of foundation
The chained list of each section of bus is connect, after traversing chained list, establishes power load table, watt-hour meter and stand-by power supply table, unit style is completed and matches
The foundation of power grid control model.
It is of the invention that the specific method is as follows：
Firstly, the part noun or term that occur during the embodiment of the present invention is described are suitable for following solution
It releases：
SK refers to that power switch, this switch are connected to substation, is exported and is powered by substation.
UK refers to that user switchs, and this switch is connected to user's lateral load or buckling.
LK refers to that interconnection switch, this switch are connected to interconnection box between other switching stations or switching station.
BK refers to bus-tie circuit breaker, and this switch is in a certain switching station's internal bus block switch.
Fig. 1 is unit style Modeling of Distribution Network flow chart.Its step includes：
Step (1), by analyzing tie lines in standing, acquiring unit prepares the minimum analytical element and most of electric network model
Small analytical unit.
It is minimum analytical element with the various switches in switching station, it is single to divide minimum analysis with single hop bus section, busbar section in switching station
Member.Each analysis unit is made of multiple switch analytical element, as power switch (SK), user switch (UK), interconnection switch
(LK) and bus-tie circuit breaker (BK) etc..
Specifically, above-mentioned model can be expressed as with code：
Single switch model is：
The model of single hop bus is defined as the set of switch：
Step (2) establishes power load table, watt-hour meter and stand-by power supply table to the carry out network analysis of system, establishes single
Member prepares electric network model.
Each switching station is made of multistage bus analytical unit, and entire unit is constituted by way of combining bus model
Grid structure processed.
Specifically, above-mentioned model can be expressed as with code：
Single hop bus chain table model
By traversing bus chained list, power load table, watt-hour meter and stand-by power supply table can establish, thus obtaining unit system
Electricity distribution network model.
Wherein power load table is the power on the UK switch for add up all closed states；Watt-hour meter is to add up all closures
Power on (LK that the BK+ that SK+ is flowed into is flowed into) switch of state；Stand-by power supply table is to add up all opening states (SK+ stream
The LK+UK that the BK+ that enters is flowed into) power on switch.
According to power conservation law, the power ≈ power load apparent power of single bus section, busbar section watt-hour meter.Therefore it can establish
Power flow algorithm, to carry out Load flow calculation.
Fig. 2 is an actual unit style power supply unit, by means of the present invention, the red frame of minimum analytical unit such as Fig. 2
It is shown.
Therefore, the canonical schema of a minimum analytical unit is as shown in Figure 3.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention
It includes and is not limited to embodiment described in specific embodiment, it is all to be obtained according to the technique and scheme of the present invention by those skilled in the art
Other embodiments out, same protection scope of the present invention.
Claims (9)
1. a kind of modeling method of unit style power distribution network Controlling model, which is characterized in that the method includes：
Step (1), by analyzing tie lines in standing, acquiring unit prepares the minimum analytical element and minimum point of electric network model
Analyse unit；It is minimum analytical element with the various switches in switching station, it is single to divide minimum analysis with single hop bus section, busbar section in switching station
Member；Each analysis unit is made of the minimum analytical element of multiple switch；
Step (2) carries out network analysis to system, establishes power load table, watt-hour meter and stand-by power supply table, establish unit style and match
Electric network model；Each switching station is made of multistage bus analytical unit, and entire list is constituted by way of combining bus model
Member grid structure；The model data for successively reading in each switch establishes the chained list of each section of bus of connection, by traversing bus
Chained list establishes power load table, watt-hour meter and stand-by power supply table, so that obtaining unit prepares electric network model.
2. the modeling method of unit style power distribution network Controlling model according to claim 1, which is characterized in that the step
(1) in, division of the power supply area is several distribution net units as the minimum of power distribution network operational management and patrolled by unit style power distribution network
Unit is collected, is planned by unit style and power distribution network is divided into multiple power supply zones, based on the analysis of power distribution network As-Is Assessment, is pressed
According to the Planning Standard of power supply area differentiation, objective net support structure of medium-voltage distribution network Connection Mode is determined, each power supply zone is divided into
Several power supply logics units are controlled using powering logic unit as medium-Voltage Distribution network planning, project management, user's access, operation
Basic unit, meet distribution network construction, user access reliability service demand.
3. the modeling method of unit style power distribution network Controlling model according to claim 1, which is characterized in that the step
(1) to stand in tie lines carry out analysis method be：Each element is by switching the logical relation for being connected and being formed in analysis station, by phase
Element even forms a node, if so that a substation is divided into passive node.
4. the modeling method of unit style power distribution network Controlling model according to claim 1, which is characterized in that in step (2),
On the basis of the network analysis that system carries out is the Topology Analysis Based in standing, the node for analyzing whole system is formed by connection
Logical relation, the node for having electric connecting relation and route are divided into a subsystem, if so that system is divided into
Dry subsystem.
5. the modeling method of unit style power distribution network Controlling model according to claim 1, which is characterized in that the switch
Including power switch, user's switch, interconnection switch and bus-tie circuit breaker.
6. the modeling method of unit style power distribution network Controlling model according to claim 5, which is characterized in that described for establishing by cable
Connection is connected to substation, is exported and is powered by substation.
7. the modeling method of unit style power distribution network Controlling model according to claim 5, which is characterized in that the user opens
Connection is connected to user's lateral load or buckling.
8. the modeling method of unit style power distribution network Controlling model according to claim 5, which is characterized in that the contact is opened
Connection is connected to interconnection box between other switching stations or switching station.
9. the modeling method of unit style power distribution network Controlling model according to claim 5, which is characterized in that the step
(2) in, the power load table is the power on the user's switch for add up all closed states, and watt-hour meter is to add up all closures
Power on the interconnection switch of the power switch of state, the bus-tie circuit breaker of inflow and inflow；Stand-by power supply table is to add up all beat
Power on the power switch of open state, the interconnection switch of the bus-tie circuit breaker of inflow and inflow and user's switch, according to power
Law of conservation, the power of single bus section, busbar section watt-hour meter establish power flow algorithm, carry out Load flow calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809151.0A CN106374454B (en) | 2016-09-07 | 2016-09-07 | A kind of modeling method of unit style power distribution network Controlling model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809151.0A CN106374454B (en) | 2016-09-07 | 2016-09-07 | A kind of modeling method of unit style power distribution network Controlling model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106374454A CN106374454A (en) | 2017-02-01 |
| CN106374454B true CN106374454B (en) | 2018-11-30 |
Family
ID=57898930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610809151.0A Active CN106374454B (en) | 2016-09-07 | 2016-09-07 | A kind of modeling method of unit style power distribution network Controlling model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106374454B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629061B (en) * | 2017-03-23 | 2021-08-27 | 南京南瑞继保电气有限公司 | Hybrid layout power distribution network single line diagram automatic generation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005045901A (en) * | 2003-07-28 | 2005-02-17 | Chugoku Electric Power Co Inc:The | Automatic designing system for optimal overhead distribution line and method therefor |
| CN105375465A (en) * | 2015-11-06 | 2016-03-02 | 国网上海市电力公司 | City center area power distribution network and load transfer method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9286582B2 (en) * | 2009-06-22 | 2016-03-15 | Johnson Controls Technology Company | Systems and methods for detecting changes in energy usage in a building |
-
2016
- 2016-09-07 CN CN201610809151.0A patent/CN106374454B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005045901A (en) * | 2003-07-28 | 2005-02-17 | Chugoku Electric Power Co Inc:The | Automatic designing system for optimal overhead distribution line and method therefor |
| CN105375465A (en) * | 2015-11-06 | 2016-03-02 | 国网上海市电力公司 | City center area power distribution network and load transfer method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106374454A (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102722764B (en) | Integration network optimization computer-aided decision support System | |
| Botea et al. | Optimal reconfiguration for supply restoration with informed A $^{\ast} $ Search | |
| CN103872681A (en) | Online real-time loop closing method based on integration of major network and distribution network | |
| CN109274095A (en) | Low-voltage distribution network users topology estimation method and system based on mutual information | |
| CN108020750A (en) | A kind of power distribution network power failure range analysis method and analytical equipment | |
| CN105449676B (en) | Power distribution network Area Node network generation method and system | |
| CN106208041B (en) | A kind of Distribution Network Harmonics current estimation method based on piecewise constant independent component analysis | |
| CN102354976B (en) | Rapid network topology analysis method | |
| CN106655169A (en) | Path description-based N-1 security check method of power distribution network | |
| CN105140919A (en) | Method for rapid topology analysis and establishment of topological island based on graph theory | |
| CN109474023A (en) | Intelligent distribution network section real time updating method, system, storage medium and terminal | |
| CN111026900A (en) | Power distribution network wiring group generation and net rack topological graph generation method and device | |
| CN112232382A (en) | Method and system for identifying branch and ammeter membership of low-voltage transformer area | |
| CN106374454B (en) | A kind of modeling method of unit style power distribution network Controlling model | |
| CN105958472B (en) | A kind of power distribution network operation optimizing system | |
| Dorsemagen et al. | Decentralized, integrated automation system for medium-and low-voltage grids | |
| CN110414796A (en) | AC/DC hybrid power distribution network frame planning method and device and storage medium | |
| CN104901328A (en) | Multi-terminal flexible DC control mode automatic identification method based on complex control network | |
| CN112257950A (en) | Trade path configuration method applied to power market and computer-readable storage medium | |
| CN106684867A (en) | Real-time line loss calculation method, device and equipment based on state changes of distribution network switch | |
| CN109038554B (en) | Intelligent power distribution terminal local topology generation method | |
| CN111062145A (en) | Three-layer partition and electrical distance-based power system electromagnetic transient simulation equivalence method | |
| CN106291251B (en) | A kind of Fault Locating Method based on unit style power distribution network | |
| CN103632221B (en) | A kind of automatic method for refreshing of feeder line scope | |
| CN106786527B (en) | Distribution network loop closing risk analysis method based on provincial and allocation integration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.20, Gaoxin Road, New District, Nanjing City, Jiangsu Province, 210061 Patentee after: NARI TECHNOLOGY Co.,Ltd. Patentee after: NARI NANJING CONTROL SYSTEM Co.,Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. SUZHOU BRANCH Patentee after: ZHEJIANG HARNPU POWER TECHNOLOGY Co.,Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No.20, Gaoxin Road, New District, Nanjing City, Jiangsu Province, 210061 Patentee before: NARI TECHNOLOGY Co.,Ltd. Patentee before: NARI NANJING CONTROL SYSTEM Co.,Ltd. Patentee before: SUZHOU POWER SUPPLY COMPANY OF STATE GRID JIANGSU ELECTRIC POWER Co. Patentee before: ZHEJIANG HARNPU POWER TECHNOLOGY Co.,Ltd. Patentee before: STATE GRID JIANGSU ELECTRIC POWER Co. Patentee before: State Grid Corporation of China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201218 Address after: 210061 No. 20 Gaoxin Road, Nanjing High-tech Zone, Jiangsu Province Patentee after: NARI TECHNOLOGY Co.,Ltd. Patentee after: NARI NANJING CONTROL SYSTEM Co.,Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. SUZHOU BRANCH Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No.20, Gaoxin Road, New District, Nanjing City, Jiangsu Province, 210061 Patentee before: NARI TECHNOLOGY Co.,Ltd. Patentee before: NARI NANJING CONTROL SYSTEM Co.,Ltd. Patentee before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. SUZHOU BRANCH Patentee before: ZHEJIANG HARNPU POWER TECHNOLOGY Co.,Ltd. Patentee before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA |