CN109995072A - High-voltage frequency converter multi-machine parallel connection shore electric power device and its control method - Google Patents
High-voltage frequency converter multi-machine parallel connection shore electric power device and its control method Download PDFInfo
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- CN109995072A CN109995072A CN201810000874.5A CN201810000874A CN109995072A CN 109995072 A CN109995072 A CN 109995072A CN 201810000874 A CN201810000874 A CN 201810000874A CN 109995072 A CN109995072 A CN 109995072A
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- frequency converter
- voltage frequency
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- electric power
- touch screen
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
-
- 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
- Y04S10/40—Display of information, e.g. of data or controls
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of high-voltage frequency converter multi-machine parallel connection shore electric power device and its control method, which is made of man-machine interface (touch screen), signal modulation plate, more high-voltage frequency converters and its master board.Man-machine interface is connect with signal modulation plate using serial communication line, voltage is arranged according to man-machine interface in signal modulation plate, frequency generates modulating wave data, then each set high-voltage frequency converter master board is transferred to by multichannel monofilm optical fiber, master board sends high-voltage frequency converter triphase multilevel Series power unit, more high-voltage frequency converter final output same-phases, same frequency, the ac high voltage sources with amplitude to through multiple groups optical-fibre communications.Each high-voltage frequency converter of the control method is mutually indepedent, and no master-slave is not limited by communication distance, stability and high reliablity, strong antijamming capability.
Description
Technical field
The present invention relates to high voltage shore power power supply more particularly to a kind of high-voltage frequency converter multi-machine parallel connection device and its controlling parties
Method.
Background technique
Optical fiber be come for the transmission network signal of remote high quality using, light is along straight line in single mode optical fiber
It is propagated, areflexia, so its propagation distance is very remote.Touch LCD screen is used as man-machine interface display, man-machine interface
User interface can preferably reflect the state of equipment and process, and pass through the effect of vision and touch, it is more straight to bring client
The impression of sight.Man-machine interface is the works such as connection programmable controller (PLC), frequency converter, DC speed regulator, instrument as product
Industry controls equipment, is shown using display screen, and running parameter or defeated is written by input unit (such as touch screen, keyboard, mouse)
Enter operational order, realizes the digital device that people interacts with machine information, be made of hardware and software two parts.
Multi-machine parallel connection shore electric power system solves single machine maximum capacity and is limited by power electronic devices, heat dissipation technology and cost
The problem of processed, has the characteristics that high-efficient, capacity configuration is flexible.Parallel running is very high to the requirement of output voltage synchronism, if not
The problems such as synchronization can cause circulation, export current unevenness when serious or damages equipment, this is to the requirement of coordinate synchronization control system
Height, prior art control algolithm is complicated, is not easy to realize.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of more simple and reliable high-voltage frequency converter parallel running banks
Power supply, capacity can select the quantity of starting high-voltage frequency converter come flexible configuration by touch screen, it is maximum to solve single machine
The problem of capacity is limited by power electronic devices, heat dissipation technology and cost.
There is provided a kind of more high-voltage frequency converter parallel runnings bank electricity electricity for another technical problems to be solved of the invention
The control method in source is guaranteed the operation for not influencing bank electricity marine system, is increased system using fault redundance design method
Reliability and stability.
For high-voltage frequency converter multi-machine parallel connection shore electric power device of the present invention, above-mentioned technical problem is to be solved in this way
Certainly: the device includes the touch screen of aobvious control man-machine interface, signal modulation plate and Duo Tai high-voltage frequency converter and its master board.Institute
It states man-machine interface and is connect with signal modulation plate using serial communication line, signal modulation plate and high-voltage frequency converter master board are using single
Film optical-fibre communications connection.
Further shore electric power voltage and frequency are arranged by man-machine interface, and man-machine interface is sent to signal for data are arranged
Modulation panel, signal modulation plate give n platform high-voltage frequency converter master board to send modulating wave, control data respectively by monofilm optical fiber,
And data is kept to synchronize the master board for being sent to every set high-voltage frequency converter, master board is with reference to same modulating wave data using shifting
Phase carrier modulation technique generates multiple groups SPWM modulation data by optical fiber and is sent to the concatenated power cell of triphase multilevel, finally
Every set high-voltage frequency converter exports same amplitude, same-phase, the high voltage power supply of same frequency, and parallel connection forms shore electric power power supply buses.
Further, touch screen has function for monitoring, it is each to cover high-voltage frequency converter master board for collected voltage, electricity
The data such as stream, failure, alarm feed back to signal modulation plate by monofilm optical fiber, and signal modulation plate is transmitted to touching by RS485 communication
Touch screen display.
It is further to have the function of the automatic locking parameter setting of operation, prevents the maloperation in operational process, need to lead to
Output voltage could be adjusted by crossing unlock；It is automatically exited from after certain frequency converter goes wrong, other frequency converters are kept just
Often operation.
For the control method of high-voltage frequency converter multi-machine parallel connection shore electric power of the present invention, above-mentioned technical problem is in this way
It solves:
(1) each high-voltage frequency converter system obtains electric, and the equipment that need to start is selected in touch screen, then corresponds to equipment input, output
Switching signal is arranged in breaker in touch screen, and to switching signal is sent out in each frequency convertor system, each corresponding breaker is closed
Lock.
(2) according to ship power supply required voltage and frequency, output voltage and frequency are set on the touchscreen, by setting
Data send signal modulation plate to by Modbus communication, and signal modulation plate generates 120 ° of mutual deviation between three-phase of modulating wave, and
Modulating wave data are sent to every high-voltage frequency converter master control system by monofilm optical fiber, each master control system by DSP with
FPGA carries out phase shift carrier modulation, generates multiple groups SPWM data, the power list of each phase plural serial stage is transferred to by multi-channel optical fibre
Member, the power cell being then respectively connected in series are superimposed as 120 ° of mutual deviation between phase of three-phase high-voltage AC power source.
(3) starting operation keeps exporting in real time same amplitude, same since each set high-voltage frequency converter modulation data is consistent
Frequency, same-phase voltage, parallel running form shore electric power power supply buses, and aspergillus ficuum generates between each variable-frequency power sources.
(4) when mostly set high-voltage frequency converter parallel running after, can be checked by touch screen each high-voltage frequency converter real time data and
State, touch screen output voltage and set of frequency lock automatically, need to be unlocked operation before modifying parameter.
(5) when a wherein equipment failure, which issues breaker open operation instruction, stands
It will input, export breaker disjunction, make its rapid detachment system, other equipment continue to operate normally, while passing through monofilm light
Fault-signal is transferred to signal modulation plate by fibre, then is sent touch screen to through signal modulation plate and shown, convenient for watching operating condition.
The present invention use DSP+FPGA multilayer structure mode, it is ensured that output same frequency, same-phase, same to amplitude, make each simultaneously
Join aspergillus ficuum between power supply, thus no longer need between each parallel connection power supply additionally to increase equalizing reactor or other stream is set
It is standby, it reduces costs, also simplifies system wiring.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of high-voltage frequency converter multi-machine parallel connection shore electric power device of the present invention and its control method
Fig. 2 is the implementation flow chart of control method shown in Fig. 1.
Specific embodiment
Fig. 1 provides a kind of high-voltage frequency converter multi-machine parallel connection shore electric power device and its control method, comprising: is made with touch screen
For man-machine interface, using DSP and FPGA as the signal modulation plate of core, more high-voltage frequency converters and its master board.Touch screen with
Signal modulation plate is connected using RS485, and signal modulation plate is connected with each high-voltage frequency converter master board using monofilm optical fiber.
Fig. 2 is a kind of high-voltage frequency converter multi-machine parallel connection shore electric power control method implementation flow chart.First on the touchscreen
Start n# high-voltage frequency converter in Fig. 1, corresponding input circuit breaker Q F1n, output circuit breaker Q F1n show combined floodgate letter in touch screen
Number；Then ship power supply required voltage and frequency are set on the touchscreen；Signal modulation plate is sent to by Modbus communication；
Start high-voltage frequency converter parallel running, checks each high-voltage frequency converter real time data and state；Output voltage and frequency is arranged in touch screen
Rate locks automatically, needs to be unlocked operation before modifying parameter；Finally, ought wherein an equipment break down, the high-pressure frequency-conversion
Device master control system issues instruction and will input, export breaker disjunction, and other equipment continue to operate normally.
This system input high voltage bus is not limited to same section of power grid, and touch screen is not limited to signal modulation plate communications protocol
Modbus.It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, may be used also
To make several modifications and improvements, these also should be regarded as belonging to the scope of protection of the present invention.
Claims (2)
1. a kind of high-voltage frequency converter multi-machine parallel connection shore electric power device, comprising: the touch screen of aobvious control man-machine interface detects any height
The signal modulation plate of voltage frequency changer operation, automatic disjunction after mutually indepedent and failure between each high-voltage frequency converter master board
Corresponding breaker, it is characterised in that: the touch screen and signal modulation plate use serial communication cable connection；Signal tune
Making sheet is connect with more high-voltage frequency converter master boards using single mode optical fiber communication cable；Input high voltage bus is sent into through breaker
High-voltage frequency converter, high-voltage frequency converter access shore electric power power supply buses through output breaker parallel connection.
2. a kind of high-voltage frequency converter multi-machine parallel connection shore electric power control method, this method include the following steps:
(1) equipment that need to start is selected in touch screen, is then corresponded to equipment input, output breaker, is given each frequency convertor system
Middle hair switching signal, by each corresponding breaker closing；
(2) data of setting are passed through Modbus and communicated by the output voltage and frequency that the power supply of setting ship needs on the touchscreen
It sends signal modulation plate to, the power cell of each phase plural serial stage is transferred to by multi-channel optical fibre；
(3) since each high-voltage frequency converter modulation data is consistent, when starting operation, keeps exporting same amplitude, same frequency, same
Phase voltage, parallel running form shore electric power power supply buses；
(4) after more high-voltage frequency converter parallel runnings, each high-voltage frequency converter real time data and state can be checked by touch screen,
Touch screen output voltage and set of frequency lock automatically, need to be unlocked operation before modifying parameter；
(5) when a wherein equipment failure, which issues breaker open operation instruction, immediately will be defeated
Enter, export breaker disjunction, make its rapid release unit, other equipment continue to operate normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000874.5A CN109995072A (en) | 2018-01-02 | 2018-01-02 | High-voltage frequency converter multi-machine parallel connection shore electric power device and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000874.5A CN109995072A (en) | 2018-01-02 | 2018-01-02 | High-voltage frequency converter multi-machine parallel connection shore electric power device and its control method |
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| CN109995072A true CN109995072A (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810000874.5A Withdrawn CN109995072A (en) | 2018-01-02 | 2018-01-02 | High-voltage frequency converter multi-machine parallel connection shore electric power device and its control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401329A (en) * | 2019-07-26 | 2019-11-01 | 成都芯源***有限公司 | Multiphase switch converter containing daisy chain architecture and fault protection method thereof |
| CN110601506A (en) * | 2019-08-09 | 2019-12-20 | 北京动力源科技股份有限公司 | Matrix redundancy type frequency converter system |
| CN111614166A (en) * | 2020-06-10 | 2020-09-01 | 中国科学院近代物理研究所 | Excitation power supply control system and method based on SFP + multi-module accelerator |
| CN112886588A (en) * | 2021-04-09 | 2021-06-01 | 东方日立(成都)电控设备有限公司 | Power autonomous transfer method and system for multi-machine parallel shore power supply device |
| CN113271027A (en) * | 2021-07-12 | 2021-08-17 | 希望森兰科技股份有限公司 | Diode-clamped high-performance synchronous overmodulation algorithm for three-level inverter |
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| CN201467063U (en) * | 2009-09-01 | 2010-05-12 | 上海艾帕电力电子有限公司 | Parallel system of high-voltage frequency converters |
| CN104143921A (en) * | 2014-07-02 | 2014-11-12 | 核工业理化工程研究院 | Combined modular frequency converter and power supply system |
| CN104167907A (en) * | 2014-08-28 | 2014-11-26 | 辽宁荣信电气传动技术有限责任公司 | Multi-machine parallel control topological structure based on high-voltage inverters |
| CN106451445A (en) * | 2016-12-06 | 2017-02-22 | 国网浙江省电力公司 | Ship shore power system in multi-machine parallel operation |
| CN206775394U (en) * | 2017-05-22 | 2017-12-19 | 济南诚雅电子科技有限公司 | Three enter singly to go out high power frequency conversion power supply |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201467063U (en) * | 2009-09-01 | 2010-05-12 | 上海艾帕电力电子有限公司 | Parallel system of high-voltage frequency converters |
| CN104143921A (en) * | 2014-07-02 | 2014-11-12 | 核工业理化工程研究院 | Combined modular frequency converter and power supply system |
| CN104167907A (en) * | 2014-08-28 | 2014-11-26 | 辽宁荣信电气传动技术有限责任公司 | Multi-machine parallel control topological structure based on high-voltage inverters |
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| CN206775394U (en) * | 2017-05-22 | 2017-12-19 | 济南诚雅电子科技有限公司 | Three enter singly to go out high power frequency conversion power supply |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401329A (en) * | 2019-07-26 | 2019-11-01 | 成都芯源***有限公司 | Multiphase switch converter containing daisy chain architecture and fault protection method thereof |
| CN110401329B (en) * | 2019-07-26 | 2021-07-20 | 成都芯源***有限公司 | Multiphase switch converter containing daisy chain architecture and fault protection method thereof |
| CN110601506A (en) * | 2019-08-09 | 2019-12-20 | 北京动力源科技股份有限公司 | Matrix redundancy type frequency converter system |
| CN111614166A (en) * | 2020-06-10 | 2020-09-01 | 中国科学院近代物理研究所 | Excitation power supply control system and method based on SFP + multi-module accelerator |
| CN112886588A (en) * | 2021-04-09 | 2021-06-01 | 东方日立(成都)电控设备有限公司 | Power autonomous transfer method and system for multi-machine parallel shore power supply device |
| CN112886588B (en) * | 2021-04-09 | 2023-03-14 | 东方日立(成都)电控设备有限公司 | Power autonomous transfer method and system for multi-machine parallel shore power supply device |
| CN113271027A (en) * | 2021-07-12 | 2021-08-17 | 希望森兰科技股份有限公司 | Diode-clamped high-performance synchronous overmodulation algorithm for three-level inverter |
| CN113271027B (en) * | 2021-07-12 | 2021-09-17 | 希望森兰科技股份有限公司 | Diode-clamped high-performance synchronous overmodulation algorithm for three-level inverter |
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Application publication date: 20190709 |
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