CN207518274U - A kind of chain type SVG power cell control systems - Google Patents
A kind of chain type SVG power cell control systems Download PDFInfo
- Publication number
- CN207518274U CN207518274U CN201721698620.2U CN201721698620U CN207518274U CN 207518274 U CN207518274 U CN 207518274U CN 201721698620 U CN201721698620 U CN 201721698620U CN 207518274 U CN207518274 U CN 207518274U
- Authority
- CN
- China
- Prior art keywords
- circuit
- attached
- igbt
- chain type
- voltage
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Landscapes
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Abstract
The utility model discloses a kind of chain type SVG power cell control systems, including CPLD controllers, fiber optic interface circuits, chain type SVG controls FPGA controller, DC bus capacitor, voltage sampling circuit, Switching Power Supply, IGBT drive circuit, temperature sampling circuit, power supply, IGBT；Voltage sampling circuit, IGBT drive circuit, temperature sampling circuit, fiber optic interface circuits and CPLD controllers connect；IGBT drive circuit, voltage sampling circuit and temperature sampling circuit are connect with Switching Power Supply；Chain type SVG controls FPGA controller is connect with fiber optic interface circuits；DC bus capacitor is attached with voltage sampling circuit；Power supply is attached with Switching Power Supply；IGBT is attached with IGBT drive circuit and temperature sampling circuit；Advantage is：Under the busbar voltage of variation, realize that power cell carries out reliable data transmission with master control, ensure that the high speed and high-precision of control process.
Description
Technical field
The utility model is related to reactive-load compensation field, more particularly to a kind of chain type SVG power cell control systems.
Background technology
Static reactive generator (Static var generator, SVG) based on voltage source inverter technology is as dynamic
The forward position of Reactive-power control technology and developing direction are current research hotspots both domestic and external.Chain type SVG device is due to response speed
Soon, outstanding advantages of modularization easy to implement, low switching frequency, small loss main choosing is adjusted as current power distribution network dynamic reactive
Topological structure.And the topological structure of chain type SVG is cascaded by multiple H bridge power units, each power cell it is steady
Determine the guarantee that reliability service is chain type SVG safe operations.
In the prior art, chain type SVG power cells control system can only carry out work in the case where busbar voltage is constant
Make, so as to the function of chain type SVG power cell control systems and not perfect, antijamming capability is weaker, and data are being carried out with master control
Transmission when, transmittability is weak, and the information content transmitted is small, and the data reliability transmitted is not high.
Utility model content
The purpose of this utility model is that chain type SVG control systems to be solved and master controller are continually changing in busbar voltage
In the case of, ensure the transmitting of data, provide a kind of chain type SVG power cell control systems.
The utility model is that solution above-mentioned technical problem, specific technical solution are as follows by the following technical programs：
Preferably, the system comprises：It is CPLD controllers, fiber optic interface circuits, chain type SVG controls FPGA controllers, straight
Flow lateral capacitance, voltage sampling circuit, Switching Power Supply, IGBT drive circuit, temperature sampling circuit, power supply, IGBT；The voltage is adopted
Sample circuit, the IGBT drive circuit, the temperature sampling circuit, the fiber optic interface circuits all with the CPLD controllers into
Row connection；The IGBT drive circuit, the voltage sampling circuit and the temperature sampling circuit all with the Switching Power Supply into
Row connection；The chain type SVG controls FPGA controller is attached with the fiber optic interface circuits；The DC bus capacitor and institute
Voltage sampling circuit is stated to be attached；The power supply is attached with the Switching Power Supply；The IGBT and IGBT drives
Circuit and the temperature sampling circuit are attached.
Preferably, the CPLD controllers include optical fiber transceiving control module, PWM processing modules, monitoring and protecting module；Institute
Optical fiber transceiving control module is stated to be attached with the PWM processing modules and the monitoring and protecting module；The PWM processing modules
It is attached with the monitoring and protecting module.
Preferably, the PWM processing modules include dead time submodule and PWM output control submodules；The dead zone
Time submodule is attached with PWM outputs control submodule.
Preferably, the monitoring and protecting module includes troubleshooting submodule, DC voltage monitoring submodule, temperature prison
Survey submodule, fiber-optic monitoring submodule, IGBT overcurrent protections submodule, IGBT break-make detection sub-modules；The DC voltage
Monitor submodule, the temperature monitoring submodule, the fiber-optic monitoring submodule, the IGBT overcurrent protections submodule, described
IGBT break-makes detection sub-module is all attached with the troubleshooting submodule.
Preferably, the Switching Power Supply includes the first bleeder circuit, UC3842 and its peripheral circuit, switching circuit, multiterminal
Export transformer, rectification circuit and the first filter circuit；First bleeder circuit and the UC3842 and its peripheral circuit
It is attached；The UC3842 and its peripheral circuit are attached with multiterminal output transformer；The multiterminal export transformation
Device is attached with the rectification circuit；The rectification circuit is attached with first filter circuit.
Preferably, the output terminal of the Switching Power Supply exports 6 road ac voltage signals, and ac voltage signal described in 4 tunnels is given
The IGBT drive circuit power supply, in addition ac voltage signal described in 2 tunnels is to the temperature sampling circuit and the voltage sample
Circuit is powered.
Preferably, the IGBT drive circuit includes driving chip M57962 and its peripheral circuit.
Preferably, the voltage sampling circuit includes the second bleeder circuit, the second filter circuit and the first A/D conversion electricity
Road；Second bleeder circuit is attached with second filter circuit；Second filter circuit turns with the first A/D
Circuit is changed to be attached.
Preferably, the temperature sampling circuit includes the 2nd A/D conversion circuits.
Preferably, the fiber optic interface circuits include the output of 1 tunnel, 1 road input optical fibre and its peripheral circuit.
As it can be seen that the utility model discloses a kind of chain type SVG power cell control systems, which controls including CPLD
Device, fiber optic interface circuits, chain type SVG controls FPGA controller, DC bus capacitor, voltage sampling circuit, Switching Power Supply, IGBT drive
Dynamic circuit, temperature sampling circuit, power supply, IGBT；Voltage sampling circuit, IGBT drive circuit, temperature sampling circuit, optical fiber interface
Circuit is all attached with CPLD controllers；IGBT drive circuit, voltage sampling circuit and temperature sampling circuit are all electric with switch
Source is attached；Chain type SVG controls FPGA controller is attached with fiber optic interface circuits；DC bus capacitor and voltage sample electricity
Road is attached；Power supply is attached with Switching Power Supply；IGBT is attached with IGBT drive circuit and temperature sampling circuit.
Based on this programme, the utility model has the advantage of：Control system individually takes electricity, in the busbar voltage of consecutive variations
Under, control system works normally always, compensating reactive power electric current；Control system on the one hand can acquire power cell DC voltage,
Temperature, and the malfunctions such as overcurrent, short circuit, excess temperature, under-voltage, over-pressed are judged in CPLD, it is transferred to chain type SVG master controls FPGA controls
On the other hand device processed receives order and PWM wave drive signal from chain type SVG master controls, and is used for driving by power amplification
IGBT.This method can be realized under the busbar voltage of consecutive variations, which can work normally always, realize power list
Member carries out reliable data transmission with master control, ensure that the high speed and high-precision of control process, so as to which transmittability is strong, is passed
Defeated contains much information, and the data reliability transmitted is high.
Description of the drawings
Fig. 1 is a kind of structure diagram of chain type SVG power cell control systems of the utility model embodiment；
Fig. 2 is the utility model embodiment CPLD controller architecture schematic diagrames；
Fig. 3 is Switching Power Supply structure diagram of the utility model embodiment based on UC3842；
Fig. 4 is the structure diagram of the utility model embodiment voltage sampling circuit.
Specific embodiment
Elaborate below to the embodiment of the utility model, the present embodiment using technical solutions of the utility model before
It puts and is implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
As shown in Figure 1, the chain type SVG power cell control systems of the utility model, the system include CPLD controllers,
Fiber optic interface circuits, chain type SVG controls FPGA controller, DC bus capacitor, voltage sampling circuit, Switching Power Supply, IGBT drivings
Circuit, temperature sampling circuit, power supply, IGBT；Voltage sampling circuit, IGBT drive circuit, temperature sampling circuit, optical fiber interface
Circuit is all attached with CPLD controllers；IGBT driving circuits, voltage sampling circuit and temperature sampling circuit are all electric with switch
Source is attached；Chain type SVG controls FPGA controller is attached with fiber optic interface circuits；DC bus capacitor and voltage sample electricity
Road is attached；Power supply is attached with Switching Power Supply；IGBT is attached with IGBT drive circuit and temperature sampling circuit.
Specifically, DC bus capacitor is SVG power cell DC bus capacitors, the control source of DC bus capacitor is adopted to voltage
Sample circuit is input to CPLD controllers after voltage sampling circuit is handled；Switching Power Supply is adopted to IGBT drive circuit, voltage
Sample circuit and temperature sampling circuit are powered；Power supply is powered directly to Switching Power Supply；On the one hand IGBT drive circuit is given
On the other hand IGBT drive signals feed back IGBT over current faults and short circuit fault signal give CPLD controllers；The temperature letter of IGBT
Number temperature sampling circuit is fed back to, CPLD controllers are input to after temperature sampling circuit is handled；CPLD controllers pass through light
Fine interface circuit communicates with the master control FPGA controller of SVG, by fiber optic interface circuits by voltage, temperature, all lists
First fault-signal is transferred to SVG master control FPGA controllers, and CPLD controllers receive the lives such as the master control locking of master control FPGA, alarm
It enables.
Specifically, it is EMP1270T144C5N that CPLD controllers, which select chip,.
Specifically, the chip that Switching Power Supply is selected is UC3842, then the 6 road alternating voltage of output terminal output of Switching Power Supply is believed
Number, 4 road ac voltage signals are powered to IGBT drive circuit, and in addition 2 road ac voltage signals are to temperature sampling circuit and voltage
Sample circuit is powered.
Specifically, IGBT drive circuit includes driving chip M57962 and its peripheral circuit.Wherein, by CPLD controllers
Generated drive signal carries out power amplification, the information of power amplification is driven IGBT, IGBT driving circuits are fed back simultaneously
IGBT with the presence or absence of overcurrent, short trouble, there will be overcurrent, short circuit fault signal be sent to CPLD controllers.
Specifically, the chip that voltage sampling circuit uses is MAX1241BCSA, by the voltage signal of DC bus capacitor through electricity
Result after pressure sample circuit is handled is input to CPLD controllers.
Specifically, the temperature sampling chip that temperature sampling circuit is selected is LM331D, temperature sampling circuit is converted including A/D
The IGBT temperature signals fed back are converted into digital signal input CPLD controllers by circuit, temperature sampling circuit.Temperature sampling electricity
There is two-way on road, because each SVG power cells contain there are two IGBT modules, respectively by the temperature signal of IGBT feedbacks by the
Two A/D conversions become digital signal input CPLD controllers, realize the temperature sampling of two-way IGBT module.
Specifically, fiber optic interface circuits include the output of 1 tunnel, 1 road input optical fibre and its peripheral circuit, be used to implement with it is described
Communication between SVG master control FPGA controllers.
Specifically, the chip that IGBT is selected is FF450R17ME4.
As described in Figure 2, CPLD controllers include optical fiber transceiving control module, PWM processing modules and monitoring and protecting module, light
It is connected with each other between three fibre transmitting-receiving control module, PWM processing modules and monitoring and protecting module modules.PWM processing modules include
Two dead time submodules and PWM output control submodules.Two dead time submodules and PWM export control submodule into
Row connection.Monitoring and protecting module includes troubleshooting submodule, DC voltage monitoring submodule, temperature monitoring submodule, light
Fibre monitoring submodule, IGBT overcurrent protections submodule, IGBT break-make detection sub-modules.DC voltage monitoring submodule, temperature
It is all sub with troubleshooting to monitor submodule, fiber-optic monitoring submodule, IGBT overcurrent protections submodule, IGBT break-makes detection sub-module
Module is attached.
DC voltage monitoring submodule and temperature monitoring submodule in CPLD controllers receive DC voltage letter respectively
Number and temperature signal, and received signal is transferred to troubleshooting submodule, judges whether to deposit by troubleshooting submodule
In failures such as over-and under-voltage, excess temperatures.Troubleshooting submodule receive come fiber-optic monitoring submodule, IGBT overcurrent protections submodule and
The overcurrent of IGBT break-make detection sub-modules, short circuit fault signal, and voltage, temperature, all cell failure signal transmissions are given
Optical fiber transceiving control module, by optical fiber transceiving control module by voltage, temperature, all cell failure signal transmissions to SVG
Master control FPGA controller.Optical fiber transceiving control module receives the drive signal that SVG master controls FPGA controllers generates, during by dead zone
Between submodule and PWM output control submodule processing after by the drive signal of SVG master control FPGA controllers export to IGBT drive
Dynamic circuit, CPLD controllers receive the orders such as the master control locking of SVG master control FPGA controllers, alarm.
As shown in figure 3, the chip that Switching Power Supply is selected is the circuit of UC3842, the then Switching Power Supply based on UC3842, packet
Include resistor voltage divider circuit 1, UC3842 and its peripheral circuit, switching circuit, multiterminal output transformer, rectification circuit and filtered electrical
Road 1.The voltage of power supply is powered by resistor voltage divider circuit 1 to UC3842, and UC3842 generates PWM wave and carrys out opening for driving switch circuit
Guan Guan.The voltage of power supply becomes high-pressure side input of the AC signal as multiterminal output transformer by switching circuit, and multiterminal are defeated
The low pressure for going out transformer exports 6 road ac voltage signals, and vertical compression power supply is transformed to after rectification circuit and filter circuit 1,
In 4 road power supplys give IGBT drive circuit power supply, in addition 2 road power supplys are powered to temperature and voltage sampling circuit.
As shown in figure 4, the block diagram of voltage sampling circuit includes resistor voltage divider circuit 2, filter circuit 2, A/D converts 1, directly
The voltage of stream lateral capacitance is divided by the resistance of bleeder circuit 2, after being filtered using filter circuit 2, by voltage signal
A/D conversions 1 are input to, realizes and the analog signal of voltage is converted into digital signal, and transformation result is input to CPLD controls
Device realizes the sampling of DC voltage.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of chain type SVG power cell control systems, which is characterized in that the system comprises：CPLD controllers, optical fiber interface
Circuit, chain type SVG controls FPGA controller, DC bus capacitor, voltage sampling circuit, Switching Power Supply, IGBT drive circuit, temperature
Sample circuit, power supply, IGBT；The voltage sampling circuit, the IGBT drive circuit, the temperature sampling circuit, the light
Fine interface circuit is all attached with the CPLD controllers；The IGBT drive circuit, the voltage sampling circuit and described
Temperature sampling circuit is all attached with the Switching Power Supply；The chain type SVG control FPGA controllers and the optical fiber interface
Circuit is attached；The DC bus capacitor is attached with the voltage sampling circuit；The power supply and the Switching Power Supply
It is attached；The IGBT is attached with the IGBT drive circuit and the temperature sampling circuit.
A kind of 2. chain type SVG power cell control systems according to claim 1, which is characterized in that the CPLD controls
Device includes optical fiber transceiving control module, PWM processing modules, monitoring and protecting module；The optical fiber transceiving control module and the PWM
Processing module and the monitoring and protecting module are attached；The PWM processing modules are attached with the monitoring and protecting module.
3. a kind of chain type SVG power cell control systems according to claim 2, which is characterized in that the PWM handles mould
Block includes dead time submodule and PWM output control submodules；The dead time submodule and PWM output control
Module is attached.
A kind of 4. chain type SVG power cell control systems according to claim 2, which is characterized in that the monitoring and protecting
Module include troubleshooting submodule, DC voltage monitoring submodule, temperature monitoring submodule, fiber-optic monitoring submodule,
IGBT overcurrent protections submodule, IGBT break-make detection sub-modules；The DC voltage monitoring submodule, temperature monitoring
Module, the fiber-optic monitoring submodule, the IGBT overcurrent protections submodule, the IGBT break-makes detection sub-module all with it is described
Troubleshooting submodule is attached.
A kind of 5. chain type SVG power cell control systems according to claim 1, which is characterized in that the Switching Power Supply
Including the first bleeder circuit, UC3842 and its peripheral circuit, switching circuit, multiterminal output transformer, rectification circuit and first
Filter circuit；First bleeder circuit is attached with the UC3842 and its peripheral circuit；The UC3842 and its periphery
Circuit is attached with multiterminal output transformer；The multiterminal output transformer is attached with the rectification circuit；Institute
Rectification circuit is stated to be attached with first filter circuit.
A kind of 6. chain type SVG power cell control systems according to claim 1, which is characterized in that the Switching Power Supply
Output terminal export 6 road ac voltage signals, ac voltage signal described in 4 tunnels gives IGBT drive circuit power supply, in addition 2 tunnel
The ac voltage signal is powered to the temperature sampling circuit and the voltage sampling circuit.
A kind of 7. chain type SVG power cell control systems according to claim 1, which is characterized in that the IGBT drivings
Circuit includes driving chip M57962 and its peripheral circuit.
A kind of 8. chain type SVG power cell control systems according to claim 1, which is characterized in that the voltage sample
Circuit includes the second bleeder circuit, the second filter circuit and the first A/D conversion circuits；Second bleeder circuit and described second
Filter circuit is attached；Second filter circuit is attached with the first A/D conversion circuits.
A kind of 9. chain type SVG power cell control systems according to claim 1, which is characterized in that the temperature sampling
Circuit includes the 2nd A/D conversion circuits.
A kind of 10. chain type SVG power cell control systems according to claim 1, which is characterized in that the optical fiber interface
Circuit includes the output of 1 tunnel, 1 road input optical fibre and its peripheral circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698620.2U CN207518274U (en) | 2017-12-08 | 2017-12-08 | A kind of chain type SVG power cell control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698620.2U CN207518274U (en) | 2017-12-08 | 2017-12-08 | A kind of chain type SVG power cell control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518274U true CN207518274U (en) | 2018-06-19 |
Family
ID=62543470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721698620.2U Expired - Fee Related CN207518274U (en) | 2017-12-08 | 2017-12-08 | A kind of chain type SVG power cell control systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193738A (en) * | 2021-05-08 | 2021-07-30 | 安徽佑赛科技股份有限公司 | High-voltage SVG power unit drive circuit |
| CN113193655A (en) * | 2021-05-24 | 2021-07-30 | 河海大学 | High-transformation-ratio direct-current transformer submodule based on W7500 and electrical isolation |
-
2017
- 2017-12-08 CN CN201721698620.2U patent/CN207518274U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193738A (en) * | 2021-05-08 | 2021-07-30 | 安徽佑赛科技股份有限公司 | High-voltage SVG power unit drive circuit |
| CN113193655A (en) * | 2021-05-24 | 2021-07-30 | 河海大学 | High-transformation-ratio direct-current transformer submodule based on W7500 and electrical isolation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104393833A (en) | Photovoltaic intelligent power | |
| CN101939660A (en) | Method for recognizing the theft of a pv module and a failure of a bypass diode of a pv module, corresponding pv sub-generator junction box, pv inverter, and corresponding pv system | |
| CN102290851A (en) | Large-scale energy storing device and main circuit thereof | |
| CN110011344B (en) | Energy storage system and control method thereof | |
| CN207518274U (en) | A kind of chain type SVG power cell control systems | |
| CN103066696A (en) | Monitoring system of photovoltaic power generation unit | |
| CN109462236A (en) | A kind of APF parallel running system and method based on high speed serialization optical fiber | |
| CN205178856U (en) | IGBT change of current valve accuse system based on SMC -VBC -VM | |
| CN105375746A (en) | SMC-VBC-VM-based valve control system for IGBT converter valve | |
| CN102723720A (en) | Chained STATCOM (static compensator) control system based on serial communication manner | |
| CN105958518A (en) | Real-time balance device for low-voltage power distribution network line and working method thereof | |
| CN203502802U (en) | Converter module control system | |
| CN211428993U (en) | Remote switching device and system for disconnecting link power supply of transformer substation | |
| CN206440960U (en) | A kind of active power filter control system based on FPGA | |
| CN205941794U (en) | Adjustment device of direct current system generating line voltage -to -ground | |
| CN104466992A (en) | Chained SVG chain link control system and method | |
| CN211405453U (en) | SVG split-phase control device based on serial optical fiber protection | |
| CN107888057A (en) | The master ＆ slave control system and its control method of a kind of subway energy back feed device | |
| CN204168235U (en) | With the concentrated inversion pressure swing type photovoltaic generation monitoring the complete sets of equipment of power detection | |
| CN209488181U (en) | A kind of integration power-supply system | |
| CN203883488U (en) | Grid-connected power conditioning system having dynamic reactive power compensation function | |
| CN207652302U (en) | A kind of master ＆ slave control system of subway energy back feed device | |
| CN203039594U (en) | Parallel variable frequency power supply for large power high voltage test | |
| CN104377827A (en) | Photovoltaic direct-current power source | |
| CN105305624A (en) | Intelligent power monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20181208 |