CN102263436B - On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid - Google Patents
On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid Download PDFInfo
- Publication number
- CN102263436B CN102263436B CN 201110080009 CN201110080009A CN102263436B CN 102263436 B CN102263436 B CN 102263436B CN 201110080009 CN201110080009 CN 201110080009 CN 201110080009 A CN201110080009 A CN 201110080009A CN 102263436 B CN102263436 B CN 102263436B
- Authority
- CN
- China
- Prior art keywords
- data
- station
- module
- main website
- real
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 23
- 238000013497 data interchange Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000013500 data storage Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007418 data mining Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses an on-line monitoring system for energy-saving scheduling and real-time coal consumption of a power grid, and the system provided by the invention comprises a station data acquisition system, a station service platform, a data exchange platform and a primary station data processing system, wherein the station data acquisition system is connected to a station SIS (Strategic Information System) and is used for acquiring the real-time data of running conditions of a production facility; the station service platform is connected to the station data acquisition system, comprises a calculating module and a service module and is used for receiving the acquired data of the station data acquisition system and sending the acquired data to the data exchange platform; the data exchange platform is connected to the station service platform and the primary station data processing system and is used for transmitting data between the station service platform and a primary station data center; and the primary station data processing system is connected to the data exchange platform and is used for receiving the data sent by the data exchange platform and processing the data. In the on-line monitoring system for the energy-saving scheduling and real-time coal consumption of the power grid, the SIS is taken as an acquiring object, thereby ensuring the data acquired by a scheduling center and avoiding the safety influence on a DCS (Data Communication System) of a machine set.
Description
Technical field
The present invention relates to a kind of electrical network energy-saving distribution real-time coal consumption online monitoring system.
Background technology
Data show, electricity power enterprise's energy consumption accounts for the whole nation 1/3, sulfur dioxide (SO2) emissions account for the whole nation half, the thermoelectricity water accounts for water for industrial use 40%, soot emissions account for 20% of national discharge capacity, and the lime-ash of generation accounts for 70% of national lime-ash total amount, and especially energy consumption is high, pollute heavy little fired power generating unit, become the key factor that the restriction power industry develops in a healthy way.So strengthen power industry energy-saving and emission-reduction work, reduce the consumption of the resources such as coal, for alleviating China's energy supply pressure, ensureing that national energy security is significant.
The technical scheme that present energy-saving distribution real-time coal consumption online monitoring system adopts is numerical procedure of online data.Overall plan is as follows:
Whole system is divided into two parts--main website side system, substation side system.The main website side system is deployed in the control centre, to realize all real time data ground, substation acquisition and processings; To all substation real-time coal consumptions in line computation, statistical analysis, result presentation and information issue etc.; Realize related data typing, the function such as examine, report; Realize Historic preservation and the inquiry of initial data and the result of calculation of all substation real-time coal consumptions; Realize the interface of the systems such as coal consumption calculation result data and EMS, DMIS etc., thereby provide the aid decision support for energy-saving distribution.
The substation side system is deployed in Power Plant Side, mainly is responsible for realizing the ground collection of the required real time data of real-time coal consumption, and the real time data of substation coal consumption is uploaded to main station system; Realize the substation manual data typing, the function such as examine, report, examine;
Above-mentioned energy-saving distribution real-time coal consumption online monitoring system has following shortcoming:
1, data are directly carried out data acquisition from DCS (Distributed Control System dcs).According to the unit safety operation regulation, complete the direct image data from DCS, must could implement to dispose in unit situation out of service, therefore carry out from DCS the bottleneck that the data acquisition rally causes production.
2, DCS is the core component of generating set, directly to the DCS image data, has increased the hidden danger of the safety of power plant side.
3, the real-time data base that adopts of existing energy-saving distribution real-time coal consumption online monitoring system can only solely be supported the PI real-time data base.
Therefore, be necessary to design a kind of novel system, to overcome defects.
Summary of the invention
For the defective of prior art, the purpose of this invention is to provide and a kind ofly can carry out the electrical network energy-saving distribution real-time coal consumption online monitoring system that factory station side data gathers in the situation that do not affect DCS.
Electrical network energy-saving distribution real-time coal consumption online monitoring system provided by the invention comprises factory station data acquisition system, factory station business platform, data interchange platform and main website data handling system.Wherein: the factory station data acquisition system, is connected with the SIS system at factory station, be used for the real time data of collection production equipment operating condition; Factory's station business platform, be connected with the factory station data acquisition system, comprise computing engines module and business module, be used for receiving the data of factory station data acquisition system collection and the data that gather are sent to data interchange platform, carry out data communication between business module and computing engines module; Data interchange platform is connected with the main website data handling system with factory station business platform, is used for stand transfer of data between business platform and data center of main website of factory; The main website data handling system is connected with data interchange platform, is used for the data of receive data switching plane transmission and described data are processed.
Preferably, described data interchange platform is non real-time VPN.
Preferably, be connected by the forward spacer assembly between the SIS system at described data acquisition system and factory station.
Preferably, described main website data handling system comprises data center of main website and main website operation system, and data center of described main website is used for providing data to the main website operation system.
Preferably, data center of described main website comprises creation data storage device and configuration data storage device.
Preferably, described main website operation system comprises computing engines module and business module, carries out data communication between business module and computing engines module.
Preferably, described factory station business platform comprises computing engines module and business module, carries out data communication between business module and computing engines module.
With respect to prior art, the present invention is only acquisition target for SIS system (level of factory Sis Based On Pi Database) for the collection of data.At present the overwhelming majority power plant that puts into operation has all disposed the SIS system, calculate the source from the real-time measuring point data of harvester shunting of SIS system as data, so both guaranteed that the control centre can obtain the most original proficiency data, and can not consist of security implication to unit DCS again simultaneously.
And coal consumption online monitoring system provided by the invention can calculate the coal consumption index in substation and main website both sides, for the user provides maximized flexibility.
Description of drawings
Fig. 1 is the structural representation of the electrical network energy-saving distribution real-time coal consumption online monitoring system of a kind of embodiment of the present invention.
Embodiment
As shown in Figure 1, electrical network energy-saving distribution real-time coal consumption online monitoring system 100 of the present invention comprises factory station data acquisition system 101, factory station business platform 102, data interchange platform 103 and main website data handling system 104.
Factory station data acquisition system 101 is for the real time data of the equipment operating conditions such as each unit that gathers power plant, boiler, steam turbine, major pant item, and calculating every unit coal consumption approximately needs 200 real-time measuring points in left and right.Described real-time measuring point comprises temperature measuring point, pressure measurement point, flow measurement points etc.In the present invention, factory station data acquisition system 101 is from SIS system 200 image data at factory station.Data acquisition system 101 comprises the SIS network port, data transmission link etc., and the SIS network port comprises network interface card with the SIS system matches etc., and data transmission link comprises twisted-pair feeder, optical fiber etc.
Wherein, SIS (Supervisory Information System in plant level, plant level supervisory information system) being the level of factory automatic information system that integrates process Real-Time Monitoring, optimal control and production process management, is a real-time plant level supervisory information system of cover that is between the Distributed Control System DCS of thermal power plant and relevant auxiliary stored program controlled and the full management information system MIS of factory.The SIS system is take the economical operation of performance calculating, level of factory economic analysis, level of factory sharing of load and the unit of unit as main purpose.The real-time of SIS system is embodied in the operational factor of SIS system real-time analysis unit, by the function of the powerful data mining of system, Data treatment and optimization, and the system that the operation conditions of unit and even full factory is analyzed accurately, diagnoses and optimized.
Preferably, at the network interface place of factory station data acquisition system 101 and SIS system on-premise network forward spacer assembly, in order to realize the one-way transmission of data.And more preferably, data acquisition system 101 comprises two network card configurations, and two network interface cards configure respectively the IP address of different segment, thereby realize the logic isolation of network, have increased Security of the system.
In the present invention, factory station business platform 102 comprises the first computing engines module and the first business module.The first computing engines module is one group of process that operates on application server, comprises logical interpretation process, algorithmic translation process, Construction of A Model process, model analyzing process etc.These processes provide explanation, the operation service about the concrete model of the modules such as performance calculating, unit thermal test.Described process can be utilized the various existing algorithm in the algorithm model knowledge base, if the algorithm or the logic that are stored in the algorithm model knowledge base can not satisfy the site specific of power plant fully, can improve and form new computation model or the reasoning from logic model satisfies field demand by revising.By computing engines, the performance index such as thermal power unit boiler efficient, steam turbine efficient, coal consumption are calculated on the backstage in real time, and can carry out to real-time measuring point, performance index the automatic or manual experiment of online and off-line.
The second business module is used for result of calculation is represented and data maintenance.Comprise the rank of system maintaining module, coal consumption and comprehensive inquiry module, fired power generating unit indicator analysis module, comprehensive inquiry module etc.
In the present invention, the transmission of real time data, conversion and preservation are realized by data interchange platform 103.By data interchange platform 103, according to the cycle of setting, factory station data acquisition system 101 is sent to the real time data that gathers the data receiver of grid dispatching center end; The data receiver of grid dispatching center end is processed accordingly and changes, then being saved in the real-time data base of data center of main website in main website data handling system 104 through the lateral isolation device after receiving the real time data that factory's station end sends.
Preferably, data interchange platform 103 is the non real-time VPN of data dispatching net.VPN (" Virtual Private Network ") i.e. " VPN (virtual private network) ".VPN (virtual private network) can be understood as virtual enterprises special line out.VPN can be by special encryption communications protocol set up a proprietary communication line on Internet between different local two or more intranets being connected to, as having set up a special line, but it does not need real going to lay the physical circuit of optical cable and so on, does not need the hardware devices such as router yet.The core of VPN is utilizing public network to set up Virtual Private Network exactly.
Preferably, main website data handling system 104 comprises data center of main website and main website operation system.Main website data handling system 104 is realized by calculation elements such as the work station that is arranged on the grid dispatching center end, servers.Wherein:
Data center of main website comprises creation data storage device and configuration data storage device.The performance calculation result data such as the real-time side point data of production that the creation data memory device stores gathers from power plant of lower floor and boiler thermal efficiency, steam turbine efficient, coal consumption.Configuration data memory device stores relational data is used for preserving the data such as user right, institutional framework, system configuration and main website configurations information that main station system is managed.Data center of main website can be realized by various memories and data software.
Preferably, the main website operation system comprises the second computing engines module and the second business module.Wherein the second computing engines module comprises one group of process that operates on application server, such as comprising logical interpretation process, algorithmic translation process, Construction of A Model process, model analyzing process etc.These processes provide explanation, the operation service about the concrete model of the modules such as performance calculating, history data store.By the computing engines module, the performance index such as thermal power unit boiler efficient, steam turbine efficient, coal consumption are calculated on the backstage in real time.Business module and computing engines module are carried out data communication, are used for the result of calculation services is represented and data maintenance.The second business module comprises the rank of system-based data maintenance module, coal consumption and comprehensive inquiry module, fired power generating unit indicator analysis module, desulfurization data rank and comprehensive inquiry module, energy-saving distribution administration module etc.The main website operation system is used for and will processes from the data that factory's station end obtains, and the data after processing is offered different application programs, and store data in the database of data center of main website.
Preferably, in electrical network energy-saving distribution real-time coal consumption online monitoring system of the present invention, factory can carry out the calculating of coal consumption index with the main website both sides in the station.And whole system all adopts the industrial configuration form design, and the transparent visible and calculation procedure of whole computational process can be followed the trail of step by step, has therefore guaranteed fully accuracy and the practicality of result of calculation, for the user provides maximized flexibility.
Although the present invention is described by above-mentioned preferred implementation, its way of realization is not limited to above-mentioned execution mode.Should be realized that: in the situation that do not break away from purport of the present invention, those skilled in the art can make different variations and modification to the present invention.
Claims (6)
1. an electrical network energy-saving distribution real-time coal consumption online monitoring system, is characterized in that, described system comprises: factory station data acquisition system, factory station business platform, data interchange platform and main website data handling system, wherein:
The factory station data acquisition system is connected with the SIS system at factory station, is used for the real time data of collection production equipment operating condition;
Factory's station business platform, be connected with the factory station data acquisition system, mainly comprise computing engines and business function, be used for receiving the data of factory station data acquisition system collection and the data that gather are sent to data interchange platform, carry out data communication between business module and computing engines module, factory's station business platform comprises the first computing engines module and the first business module
The first computing engines module is one group of process that operates on application server, comprise logical interpretation process, algorithmic translation process, Construction of A Model process, model analyzing process, pass through computing engines, the backstage is calculated thermal power unit boiler efficient, steam turbine efficient, coal consumption performance index in real time, and real-time measuring point, performance index is carried out the automatic or manual experiment of online and off-line; The first business module is used for result of calculation is represented and data maintenance, comprises the rank of system maintaining module, coal consumption and comprehensive inquiry module, fired power generating unit indicator analysis module, comprehensive inquiry module;
Data interchange platform is connected with the main website data handling system with factory station business platform, is used for stand transfer of data between business platform and data center of main website of factory;
The main website data handling system is connected with data interchange platform, is used for the data of receive data switching plane transmission and described data are processed.
2. system according to claim 1, is characterized in that, described data interchange platform is non real-time VPN.
3. system according to claim 1 and 2, is characterized in that, is connected by the forward spacer assembly between the SIS system at described data acquisition system and factory station.
4. system according to claim 3, is characterized in that, described main website data handling system comprises data center of main website and main website operation system, and data center of described main website is used for providing data to the main website operation system.
5. system according to claim 4, is characterized in that, data center of described main website comprises creation data storage device and configuration data storage device.
6. system according to claim 4, is characterized in that, described main website operation system comprises calculates the second engine modules and the second business module, carries out data communication between the second business module and the second computing engines module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110080009 CN102263436B (en) | 2011-03-31 | 2011-03-31 | On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110080009 CN102263436B (en) | 2011-03-31 | 2011-03-31 | On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102263436A CN102263436A (en) | 2011-11-30 |
| CN102263436B true CN102263436B (en) | 2013-11-06 |
Family
ID=45009950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110080009 Active CN102263436B (en) | 2011-03-31 | 2011-03-31 | On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102263436B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084262B (en) * | 2013-01-23 | 2015-05-27 | 山东鲁能软件技术有限公司 | Coal mill multiparameter operation optimization energy-saving system |
| CN103279115B (en) * | 2013-06-28 | 2016-08-17 | 华电国际电力股份有限公司山东分公司 | A kind of region company power plant units online energy-saving analysis system |
| CN104676637A (en) * | 2015-02-13 | 2015-06-03 | 北京智仁信业技术有限责任公司 | Processing system for blended coal combustion in power plant |
| CN105652839A (en) * | 2016-02-01 | 2016-06-08 | 南京华盾电力信息安全测评有限公司 | Remote energy-saving technology diagnosis platform |
| CN105700514A (en) * | 2016-02-01 | 2016-06-22 | 南京华盾电力信息安全测评有限公司 | Power plant side remote energy saving diagnosis platform data acquisition platform |
| CN105955218A (en) * | 2016-06-03 | 2016-09-21 | 河北省电力建设调整试验所 | Power plant data acquisition method based on C/S structure |
| CN109523180B (en) * | 2018-11-27 | 2023-01-03 | 国投北部湾发电有限公司 | Coal consumption and heat supply online monitoring system of thermal power plant |
| CN109901536B (en) * | 2019-03-04 | 2021-09-17 | 北京工业大学 | One-way isolated data acquisition and offline algorithm verification system |
| CN112491049B (en) * | 2020-11-26 | 2022-10-11 | 贵州电网有限责任公司 | Multi-energy access power grid optimized scheduling method considering on-line coal consumption curve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188189Y (en) * | 2008-04-08 | 2009-01-28 | 南京迪玛斯电气有限公司 | Apparatus for actually measuring running energy consumption of thermal power generating units |
| CN101393453A (en) * | 2008-11-04 | 2009-03-25 | 江苏方天电力技术有限公司 | Energy consumption real time monitoring system for thermal generator set |
| CN101598688A (en) * | 2009-06-10 | 2009-12-09 | 东南大学 | Boiler Ash fouling monitoring and soot blowing and optimal method based on the ature of coal on-line measurement |
| CN101619850A (en) * | 2009-08-06 | 2010-01-06 | 杭州盘古自动化系统有限公司 | Dispatching method and dispatching system based on load online forecasting of thermoelectric power system |
-
2011
- 2011-03-31 CN CN 201110080009 patent/CN102263436B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188189Y (en) * | 2008-04-08 | 2009-01-28 | 南京迪玛斯电气有限公司 | Apparatus for actually measuring running energy consumption of thermal power generating units |
| CN101393453A (en) * | 2008-11-04 | 2009-03-25 | 江苏方天电力技术有限公司 | Energy consumption real time monitoring system for thermal generator set |
| CN101598688A (en) * | 2009-06-10 | 2009-12-09 | 东南大学 | Boiler Ash fouling monitoring and soot blowing and optimal method based on the ature of coal on-line measurement |
| CN101619850A (en) * | 2009-08-06 | 2010-01-06 | 杭州盘古自动化系统有限公司 | Dispatching method and dispatching system based on load online forecasting of thermoelectric power system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102263436A (en) | 2011-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102263436B (en) | On-line monitoring system for energy-saving scheduling and real-time coal consumption of power grid | |
| CN103283208B (en) | Based on the remote real-time monitoring system of cloud computing | |
| CN103248122B (en) | Power failure active reporting system | |
| CN103078407B (en) | Intelligent control system for microgrid | |
| CN103166219A (en) | Power grid on-line decision-stabilizing control system and control method based on super real-time emulation | |
| CN106532935B (en) | For carrying out the method and its system of secondary system of intelligent substation fault diagnosis | |
| CN102419834B (en) | Enterprise energy settlement system | |
| CN103545924A (en) | Secondary equipment state online monitoring method | |
| CN108170073B (en) | Intelligent photovoltaic cloud platform | |
| CN103744386B (en) | Offshore oil platform energy managing and control system | |
| CN107832946A (en) | A kind of power energy monitoring and controlling for workshop and management method and system | |
| CN206620100U (en) | A kind of monitoring system of photovoltaic plant | |
| CN202094700U (en) | Real-time coal consumption on-line monitoring system for energy-saving dispatch of power grid | |
| CN204945365U (en) | Gate energy meter supervising device | |
| CN112580957A (en) | Smart energy management and control system based on cloud platform | |
| CN112068524A (en) | Energy management and control platform for enterprise operation and maintenance | |
| CN108054833A (en) | Microgrid cloud platform management system | |
| CN105335824B (en) | Distribution network failure repairing command methods and system based on data center | |
| CN209184243U (en) | A kind of wisdom energy internet system | |
| CN204231378U (en) | Electric power system snap information repair based on condition of component and service system | |
| Baodi et al. | Design and application of regional multi-energy complementary distributed energy management and control platform based on big data | |
| CN205231848U (en) | Distribution network automated management system | |
| CN204631531U (en) | Electric energy metrical cluster monitoring system | |
| CN208674966U (en) | Grid operating monitoring intelligent management device | |
| CN210518408U (en) | Communication access equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: BEIJING GUOHUA ELECTRIC POWER Corp.,Ltd. Patentee after: Guoneng Yuedian Taishan Power Generation Co.,Ltd. Patentee after: Hunan Datang Xianyi Technology Co.,Ltd. Address before: 100011 Beijing city Dongcheng District No. 16 Andrew intercontinental 4 storey building Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA ELECTRIC POWER Corp.,Ltd. Patentee before: GUANGDONG GUOHUA YUEDIAN TAISHAN POWER GENERATION Co.,Ltd. Patentee before: Hunan Datang Xianyi Technology Co.,Ltd. |