CN210015554U - Wind turbine generator system master control and fault diagnosis simulation experiment training system - Google Patents
Wind turbine generator system master control and fault diagnosis simulation experiment training system Download PDFInfo
- Publication number
- CN210015554U CN210015554U CN201920772984.3U CN201920772984U CN210015554U CN 210015554 U CN210015554 U CN 210015554U CN 201920772984 U CN201920772984 U CN 201920772984U CN 210015554 U CN210015554 U CN 210015554U
- Authority
- CN
- China
- Prior art keywords
- fault
- external
- wind turbine
- turbine generator
- simulation
- 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
Images
Landscapes
- Wind Motors (AREA)
Abstract
The embodiment of the utility model discloses wind turbine generator system master control and failure diagnosis simulation experiment training system, include: the simulation wind turbine generator system comprises a simulation wind turbine generator system used for displaying a fault state, an external engine room electrical device used for controlling the running state of the simulation wind turbine generator system, an external main control device used for generating a control instruction and controlling the running state of the simulation wind turbine generator system, an external sensor device used for setting fault parameters according to preset fault types and an external fault trigger device used for setting the fault types of the simulation wind turbine generator system. Adopt wind turbine generator system master control and failure diagnosis simulation experiment training system, can be through setting external sensor device with external fault trigger device accurately sets up the fault type for failure diagnosis simulation experiment process to wind turbine generator system is more high-efficient, can make the fault state show more intelligent, thereby has improved user's use and has experienced.
Description
Technical Field
The utility model relates to a wind turbine generator system emulation teaching field, concretely relates to wind turbine generator system master control and fault diagnosis simulation experiment training system.
Background
With the rapid development of wind power generation technology, more excellent technical talents with practical experience are urgently needed to be cultured in the wind power generation industry, and related specialties of wind power generation in colleges and universities are born. However, in most high school schools, the current experimental teaching courses mostly adopt a mode of combining teacher teaching and factory visit, so that students lack practice. Especially, when the wind turbine generator fails, the operation characteristics of the wind turbine generator and the state conditions of various components and other related contents are not deeply understood. However, the real wind generating set is usually expensive in manufacturing cost, the control process of the wind generating set is complex and difficult to understand, and the actual operation process of the wind generating set is difficult to be applied to teaching of common colleges and universities.
At present, the known existing teaching equipment usually sets the fault of the wind turbine generator in a manual mode or manually disconnects the circuit connection, and then practice teaching is completed. However, the above method is complicated in operation, so that the teaching efficiency is low, and students cannot see the performance state of the wind turbine generator after the fault occurs, so that the practical experiment training process of the students is still not visual and real enough.
Therefore, in order to meet the increasing requirements of wind turbine generator fault diagnosis experiment teaching, more workers are trained, and the problem that the wind turbine generator fault diagnosis experiment teaching equipment close to reality needs to be solved urgently is researched.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a wind turbine generator system master control and fault diagnosis simulation experiment training system to solve the wind turbine generator system master control that exists among the prior art and the fault diagnosis simulation experiment teaching in-process, the trouble bandwagon effect is true inadequately, and the operation is complicated, leads to teaching inefficiency, and then can't satisfy the problem that the user required.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model provides a wind turbine generator system master control and fault diagnosis emulation experiment training system, include: the system comprises a simulation wind turbine generator for displaying a fault state, an external cabin electrical device for controlling the running state of the simulation wind turbine generator, an external main control device for generating a control instruction and controlling the running state of the simulation wind turbine generator, an external sensor device for setting fault parameters according to a preset fault type and an external fault trigger device for setting the fault type of the simulation wind turbine generator;
the output end of the external fault trigger device is respectively connected with the input ends of the external main control device, the external cabin electrical device and the external sensor device through network communication lines;
the output end of the external main control device is connected with the input end of the external cabin electrical device through a network communication line; the output ends of the external main control device and the external engine room electric appliance device are respectively connected with the input end of the external sensor device through a network communication line;
the output end of the external sensor device is connected with the input end of the simulation wind turbine generator through a network communication line;
the external fault trigger device comprises a human-computer interaction interface for receiving a user operation instruction, a programmable logic control device for generating a control instruction, a fault indicator lamp for indicating the type of a fault, an operation button for controlling the switch of the fault indicator lamp, a power relay for controlling the on/off of a power circuit in the external main control device and the external engine room electric device, a signal relay for controlling the on/off of a signal loop in the external main control device and the external engine room electric device, and a communication relay for controlling the on/off of a communication loop in the external main control device and the external engine room electric device; the output end of the human-computer interaction interface is connected with the input end of the programmable logic control device, and the output end of the programmable logic control device is respectively and electrically connected with the input ends of the power supply relay, the signal relay and the communication relay;
the external main control device and the external engine room electric appliance device respectively comprise a human-computer interaction interface for displaying fault codes and a circuit loop system for detecting a circuit loop;
the external sensor device comprises a sensor component for setting parameter information according to fault types and a network communication module for sending feedback data to the output end of the external main control device and the external cabin electric appliance device;
the simulation wind generating set is designed according to a three-point supporting structure of a single-bearing gear box of a large wind generating set, and comprises a wind wheel, a gear set, a rack, a fixed support and a driving device, wherein the output end of the driving device is connected with the wind wheel through the gear set, and the fixed support is fixedly installed at the bottom of the rack.
Further, the system further comprises: the output end of the handheld remote control device is connected with the input end of the external fault trigger device through a wireless network.
Furthermore, the hand-held remote control device comprises a fault setting module for setting the fault type of the simulation wind turbine generator, a network communication module for sending a control instruction to the external fault trigger device, and a human-computer interaction display interface for displaying the working state of the hand-held remote control device, wherein the fault setting module, the network communication module and the human-computer interaction display interface are electrically connected.
Further, the fault setting module comprises a pitch action simulation submodule and a yaw action simulation submodule.
Further, the simulation wind turbine generator set further comprises a variable pitch controller and a variable pitch executing mechanism, wherein the variable pitch executing mechanism comprises a variable pitch motor, a servo driver, an uninterrupted power supply and a speed reducing mechanism; the variable pitch motor, the servo driver, the uninterruptible power supply and the speed reducing mechanism are electrically connected.
Furthermore, the external fault triggering device also comprises a natural parameter setting module for setting the parameters of the analog signals; the analog signal parameters comprise at least one analog signal parameter of temperature parameters, wind speed parameters and wind direction parameters.
Further, the external fault triggering device also comprises a code input module for writing fault preset code parameters.
Adopt wind turbine generator system master control and failure diagnosis simulation experiment training system, can be through setting external sensor device with external fault trigger device accurately sets up the fault type for failure diagnosis simulation experiment process to wind turbine generator system is more high-efficient, can make the fault state show more intelligent, thereby has improved user's use and has experienced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic diagram of an external fault triggering device in a wind turbine generator master control and fault diagnosis simulation experiment training system provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of an external sensor device in a simulation experiment training system for wind turbine generator master control and fault diagnosis provided by an embodiment of the present invention;
fig. 3 is a schematic diagram of an external cabin electrical device in a simulation experiment training system for wind turbine generator master control and fault diagnosis provided by an embodiment of the present invention;
fig. 4 is a schematic diagram of an external master control device in a simulation experiment training system for master control and fault diagnosis of a wind turbine generator set provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of a simulation wind turbine in a simulation experiment training system for wind turbine master control and fault diagnosis provided by an embodiment of the present invention;
fig. 6 is a schematic diagram of a handheld remote control device in a wind turbine generator master control and fault diagnosis simulation experiment training system provided by an embodiment of the present invention;
wherein, in said FIG. 1: 101 is a Programmable Logic Controller (PLC), 102 is a power relay, 103 is a communication relay, 104 is a signal relay, 105 is a wiring terminal, 106 is a network communication module, 107 is a communication detection module, 108 is a safety connection relay, 109 is a human-computer interaction interface (touch screen), 110 is a fault indicator, 111 is an operation button, and 112 is an air-permeable fan;
in the figure 2: 201 temperature sensing part, 202 debugging external button, 203 debugging external emergency stop button, 204 vibration switch, 205 pressure sensing part, 206 double-channel encoder, 207 wiring terminal, 208 anemorumbometer part, 209 debugging external button, 210 limit switch, 211 yawing untwisting switch, 212 heater, 213 ventilating fan;
in said fig. 3: 301 is a motor breaker, 302 is a motor breaker, 303 is an overspeed module, 304 is a safety chain module, 305 is a voltage-stabilized switch power supply, 306 is a motor contactor, 307 is a wiring terminal, 308 is a three-phase power socket, 309 is a yaw soft start, 310 is a vibration sensor, 311 is a yaw motor contactor, 312 is a heater, 313 is a cabin programmable control device, 314 is an encoder acquisition module, 315 is a human-computer interaction interface (touch screen), 316 is an indicator light, 317 is a control button, 318 is an emergency stop button, 319 is a main power switch, and 320 is a ventilating fan;
in the figure 4: 401 main breaker, 402 small breaker, 403 power supply, 404 regulated power supply 24V, 405 Programmable Logic Control (PLC), 406 wiring terminal, 407 motor contactor, 408 electrical fuse, 409 minirelay, 410 motor protector, 411 network switch, 412 temperature controller, 413 communication diagnosis sensor, 414, heater, 415 human-computer interaction interface (touch screen), 416 fault indicator light, 417 control button, 418 emergency stop button, 419 main power switch, 420 ventilating fan;
in said fig. 5: 501, blades; 502 wind wheel, 503 tower; 504 a nacelle; 505 a fixed support;
in said fig. 6: 601 operating buttons; 602 a confirmation button; 603 equipment power switch; 604 a network communication module; 605 an acceleration button; 606 human-machine interaction interface; 607 deceleration button.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Based on wind turbine generator system master control and failure diagnosis simulation experiment training system, carry out detailed description to its embodiment below. As shown in fig. 1, it is the embodiment of the utility model provides a schematic diagram of a wind turbine generator system master control and fault diagnosis simulation experiment training system, the concrete realization process includes following part: the simulation wind turbine generator system comprises an external sensor device for setting fault parameters according to preset fault types, an external fault trigger device for setting fault types of the simulation wind turbine generator system, the simulation wind turbine generator system for displaying fault states, an external cabin electrical device for controlling the running states of the simulation wind turbine generator system, and an external main control device for generating control instructions and controlling the running states of the simulation wind turbine generator system.
The embodiment of the utility model provides an in, external fault trigger device's output respectively with external master control set external cabin electrical apparatus and external sensor device's input passes through the network communication line and connects. The output end of the external main control device is connected with the input end of the external cabin electrical device through a network communication line; the output ends of the external main control device and the external engine room electric appliance device are respectively connected with the input end of the external sensor device through a network communication line. The output end of the external sensor device is connected with the input end of the simulation wind turbine generator through a network communication line. Wherein the network communication line comprises a communication circuit, a cable and the like. The scale ratio of the simulation wind turbine generator set to the real large-scale wind turbine generator set is about 1: 120.
As shown in fig. 1, it is the embodiment of the utility model provides a schematic diagram of an external fault trigger device in wind turbine generator system master control and fault diagnosis simulation experiment training system.
The external fault trigger device comprises a human-computer interaction interface for receiving a user operation instruction, a programmable logic control device 101 for generating a control instruction, a fault indicator lamp 110 for indicating a fault type, an operation button 111 for controlling a fault indicator lamp switch, a power relay 102 for controlling the external main control device and the external cabin electrical device to be opened and closed, a signal relay 104 for controlling the external main control device and the external cabin electrical device to be opened and closed, and a communication relay 103 for controlling the external main control device and the external cabin electrical device to be opened and closed. The external fault triggering device also comprises a code input module used for writing fault preset code parameters. In addition, the external fault triggering device may further include: a natural parameter setting module for setting the parameters of the analog signals; the analog signal parameters comprise at least one analog signal parameter of temperature parameters, wind speed parameters and wind direction parameters.
The Programmable logic controller 101 may be a PLC (Programmable logic controller) control system. The PLC control system is a digital operation electronic system designed for application in industrial environments, and includes a programmable memory, in which instructions for performing operations such as logical operations, sequence control, timing, counting, and arithmetic operations are stored, and various types of mechanical devices are controlled by digital or analog inputs and outputs.
Specifically, the output end of the human-computer interaction interface 109 is connected to the input end of the programmable logic control device 101, and the output end of the programmable logic control device 101 is electrically connected to the input ends of the power relay 102, the signal relay 104, and the communication relay 103, respectively. In the actual application process, a user can set different fault types and parameter information through the man-machine interaction interface.
As shown in fig. 3 and fig. 4, it is respectively the embodiment of the utility model provides a schematic diagram of external cabin electrical apparatus and external master control device in wind turbine generator system master control and fault diagnosis simulation experiment training system.
The external main control device and the external cabin electrical device respectively comprise a human-computer interaction interface 415 and a human-computer interaction interface 315 for displaying fault codes, and a circuit loop system for detecting a circuit loop.
The external sensor device comprises sensor components (such as a temperature sensing component 201, a pressure sensing component 205, an anemorumbometer component 208 and the like) for setting parameter information according to fault types, and a network communication module for sending feedback data to the output end of the external main control device and the external cabin electrical device.
As shown in fig. 5, it is the embodiment of the utility model provides a schematic diagram of emulation wind turbine generator in wind turbine generator master control and fault diagnosis simulation experiment training system.
The simulation wind turbine generator system is designed according to a three-point supporting structure of a single-bearing gearbox of a large wind turbine generator system, and comprises a wind wheel 502, a gear set, a rack (composed of a tower tube 503 and a cabin 504), a fixed support 505 and a driving device, wherein the output end of the driving device is connected with the wind wheel 502 through the gear set, and the fixed support 505 is fixedly installed at the bottom of the rack. The simulation wind turbine generator set can further comprise a variable pitch controller and a variable pitch executing mechanism, wherein the variable pitch executing mechanism comprises a variable pitch motor, a servo driver, an uninterrupted power supply and a speed reducing mechanism; the variable pitch motor, the servo driver, the uninterruptible power supply and the speed reducing mechanism are electrically connected.
As shown in fig. 6, it is the embodiment of the utility model provides a schematic diagram of a handheld remote control unit in wind turbine generator system master control and fault diagnosis simulation experiment training system.
In a specific implementation process, the system may further include: the output end of the handheld remote control device is connected with the input end of the external fault trigger device through a wireless network. The hand-held remote control device includes: the system comprises a fault setting module for setting the fault type of the simulation wind turbine generator, a network communication module 604 for sending a control instruction to the external fault trigger device, and a man-machine interaction display interface 606 for displaying the working state of the handheld remote control device. The fault setting module, the network communication module 604 and the human-computer interaction display interface 606 are electrically connected. The user can trigger the fault setting module to generate a corresponding control instruction by operating the button 601, the confirmation button 602, the acceleration button 605 and the deceleration button 607. Specifically, the fault setting module comprises a pitch action simulation submodule and a yaw action simulation submodule.
Adopt wind turbine generator system master control and failure diagnosis simulation experiment training system, can be through setting external sensor device with external fault trigger device accurately sets up the fault type for failure diagnosis simulation experiment process to wind turbine generator system is more high-efficient, can make the fault state show more intelligent, thereby has improved user's use and has experienced.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a wind turbine generator system master control and fault diagnosis simulation experiment training system which characterized in that includes: the system comprises a simulation wind turbine generator for displaying a fault state, an external cabin electrical device for controlling the running state of the simulation wind turbine generator, an external main control device for generating a control instruction and controlling the running state of the simulation wind turbine generator, an external sensor device for setting fault parameters according to a preset fault type and an external fault trigger device for setting the fault type of the simulation wind turbine generator;
the output end of the external fault trigger device is respectively connected with the input ends of the external main control device, the external cabin electrical device and the external sensor device through network communication lines;
the output end of the external main control device is connected with the input end of the external cabin electrical device through a network communication line; the output ends of the external main control device and the external engine room electric appliance device are respectively connected with the input end of the external sensor device through a network communication line;
the output end of the external sensor device is connected with the input end of the simulation wind turbine generator through a network communication line;
the external fault trigger device comprises a human-computer interaction interface for receiving a user operation instruction, a programmable logic control device for generating a control instruction, a fault indicator lamp for indicating the type of a fault, an operation button for controlling the switch of the fault indicator lamp, a power relay for controlling the on/off of a power circuit in the external main control device and the external engine room electric device, a signal relay for controlling the on/off of a signal loop in the external main control device and the external engine room electric device, and a communication relay for controlling the on/off of a communication loop in the external main control device and the external engine room electric device; the output end of the human-computer interaction interface is connected with the input end of the programmable logic control device, and the output end of the programmable logic control device is respectively and electrically connected with the input ends of the power supply relay, the signal relay and the communication relay;
the external main control device and the external engine room electric appliance device respectively comprise a human-computer interaction interface for displaying fault codes and a circuit loop system for detecting a circuit loop;
the external sensor device comprises a sensor component for setting parameter information according to fault types and a network communication module for sending feedback data to the output end of the external main control device and the external cabin electric appliance device;
the simulation wind generating set is designed according to a three-point supporting structure of a single-bearing gear box of a large wind generating set, and comprises a wind wheel, a gear set, a rack, a fixed support and a driving device, wherein the output end of the driving device is connected with the wind wheel through the gear set, and the fixed support is fixedly installed at the bottom of the rack.
2. The wind turbine master control and fault diagnosis simulation experiment training system according to claim 1, wherein the system further comprises: the output end of the handheld remote control device is connected with the input end of the external fault trigger device through a wireless network.
3. The wind turbine master control and fault diagnosis simulation experiment training system of claim 2, wherein the hand-held remote control device comprises: the system comprises a fault setting module, a network communication module and a man-machine interaction display interface, wherein the fault setting module is used for setting the fault type of the simulation wind turbine generator, the network communication module is used for sending a control instruction to the external fault trigger device, and the man-machine interaction display interface is used for displaying the working state of the handheld remote control device; the fault setting module, the network communication module and the human-computer interaction display interface are electrically connected.
4. The wind turbine generator main control and fault diagnosis simulation experiment training system according to claim 3, wherein the fault setting module comprises: the pitch action simulation submodule and the yaw action simulation submodule.
5. The wind turbine master control and fault diagnosis simulation experiment training system according to claim 1, wherein the simulation wind turbine further comprises: the pitch controller and the pitch actuating mechanism; the variable-pitch executing mechanism comprises a variable-pitch motor, a servo driver, an uninterruptible power supply and a speed reducing mechanism; the variable pitch motor, the servo driver, the uninterruptible power supply and the speed reducing mechanism are electrically connected.
6. The wind turbine generator system master control and fault diagnosis simulation experiment training system as claimed in claim 1, wherein the external fault triggering device further comprises: a natural parameter setting module for setting the parameters of the analog signals; the analog signal parameters comprise at least one analog signal parameter of temperature parameters, wind speed parameters and wind direction parameters.
7. The wind turbine generator system master control and fault diagnosis simulation experiment training system as claimed in claim 1, wherein the external fault triggering device further comprises: a code input module for writing a fault predetermined code parameter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920772984.3U CN210015554U (en) | 2019-05-27 | 2019-05-27 | Wind turbine generator system master control and fault diagnosis simulation experiment training system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920772984.3U CN210015554U (en) | 2019-05-27 | 2019-05-27 | Wind turbine generator system master control and fault diagnosis simulation experiment training system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210015554U true CN210015554U (en) | 2020-02-04 |
Family
ID=69317983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920772984.3U Active CN210015554U (en) | 2019-05-27 | 2019-05-27 | Wind turbine generator system master control and fault diagnosis simulation experiment training system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN210015554U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111710205A (en) * | 2020-05-27 | 2020-09-25 | 河北新天科创新能源技术有限公司 | Wind turbine generator system operation and fault diagnosis training system |
-
2019
- 2019-05-27 CN CN201920772984.3U patent/CN210015554U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111710205A (en) * | 2020-05-27 | 2020-09-25 | 河北新天科创新能源技术有限公司 | Wind turbine generator system operation and fault diagnosis training system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113741218A (en) | Comprehensive real-time simulation platform for large wind turbine generator | |
CN109483601A (en) | Industrial robot function test system and test method | |
CN105679160B (en) | Running of wind generating set controls teaching simulating device and its analogy method | |
CN210015554U (en) | Wind turbine generator system master control and fault diagnosis simulation experiment training system | |
CN105446166B (en) | Machine tool of numerical control system environmental simulation instrument | |
CN112099377A (en) | Semi-physical simulation platform of variable pitch motor of wind turbine generator | |
CN111816039A (en) | Electromechanical transmission control system and control method | |
CN209335656U (en) | A kind of industrial robot function test system | |
CN215006354U (en) | Integrated PLC, vision or force feedback integrated actuating mechanism | |
CN203070661U (en) | Programmable logic controller (PLC) practical training device | |
CN111710205A (en) | Wind turbine generator system operation and fault diagnosis training system | |
CN117765801A (en) | PLC remote integrated control experiment platform and implementation method thereof | |
CN208256151U (en) | The electronic yaw variable pitch model of wind-driven generator | |
CN211319056U (en) | Frequency converter debugging device | |
CN210181848U (en) | Ring simulation and virtual training system based on wind turbine hardware | |
CN112017499B (en) | Semi-physical loading and unloading machine simulator system based on simulation technology | |
CN208763822U (en) | A kind of wireless joint debugging test macro of wind power generating set | |
CN112562440A (en) | Comprehensive training examination device for industrial automatic control system | |
CN210743267U (en) | PLC practical training equipment | |
CN204883209U (en) | Three -dimensional dynamic simulation system of wind generating set is directly driven to megawatt level | |
CN215170546U (en) | Test platform for electric variable pitch system of wind turbine | |
CN108088646A (en) | A kind of rotation test device electric control system | |
CN204759892U (en) | Experimental apparatus based on converter control three -phase asynchronous motor | |
CN209855970U (en) | Comprehensive experiment table for operation and fault diagnosis of wind generating set | |
CN207397000U (en) | The trailing suction hopper dredger power-equipment signal simulation device pushed away based on the double paddle bilaterals of two-shipper |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200722 Address after: No. 17-3, Yingpan West Street, Hunnan District, Shenyang City, Liaoning Province (1604) Patentee after: Liaoning Sanhe New Energy Technology Co., Ltd Address before: Room 905, Huijin international financial center, 197 Nanjing South Street, Heping District, Shenyang, Liaoning Patentee before: Liaoning Sanhe Technology Co.,Ltd. |
|
TR01 | Transfer of patent right |