CN204761158U - Case of supporting photovoltaic power's electric energy quality on -line monitoring becomes measurement and control device - Google Patents

Case of supporting photovoltaic power's electric energy quality on -line monitoring becomes measurement and control device Download PDF

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CN204761158U
CN204761158U CN201520386682.4U CN201520386682U CN204761158U CN 204761158 U CN204761158 U CN 204761158U CN 201520386682 U CN201520386682 U CN 201520386682U CN 204761158 U CN204761158 U CN 204761158U
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module
power supply
power
quality
photo
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夏德华
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Nanjing Foho Electricity Automation Co Ltd
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Nanjing Foho Electricity Automation Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/20Climate change mitigation technologies for sector-wide applications using renewable energy
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems 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
    • Y04S40/12Systems 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
    • Y04S40/124Systems 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

Abstract

The utility model provides a case of supporting photovoltaic power's electric energy quality on -line monitoring becomes measurement and control device, communication CPU module (4) wherein, includes electricity mouth, optical fiber interface, ethernet interface, RS485 serial ports and GPS interface including ARM nuclear CPU industry treater (12) and interface module (15) interface module (15) are connected a ARM examines CPU industry treater (12), ARM nuclear CPU industry treater (12) with the signal processing that receives and the photovoltaic power system communicate by letter, electric energy quality analysis module (8) includes that the 2nd ARM nuclear CPU industry treater (18), dual port memory (19), DSP examine CPU industry treater (20), wherein, DSP nuclear CPU industry treater (20) monitoring and calculation electrical power quality data, and pass through dual port memory (19) data interaction is arrived the 2nd ARM examines CPU industry treater (18), the 2nd ARM nuclear CPU industry treater (18) carries out data storage and carries out harmonic analysis.

Description

A kind of case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply
Technical field
The utility model relates to field of photovoltaic power generation, particularly a kind of case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply.
Background technology
China's new forms of energy industry development is comparatively rapid in recent years, especially in field of photovoltaic power generation, due to the support energetically of national policy, has entered the blowout formula high speed development stage at present.Auxiliary facility relevant in the process of development, the case especially centered by box type transformer becomes protection supervisory equipment, and most product function is not comprehensively, Information Monitoring amount is limited, product function degree of integration is not high, communication interface is limited.Current most of case becomes measure and control device due to plant bulk and limits, and electric parameters amount of acquisition channels is limited, open less into amount of acquisition channels, that communication interface only supports negligible amounts RS485 serial port function.
In addition, owing to affecting by factors such as weather, ambient temperature, photovoltaic panel installation sites, the power output of photovoltaic plant can change to some extent, and maximum rate of change even exceedes 10% of rated quantity, therefore create the instability problem of energy output, can the harmonic wave be connected to the grid be had an impact.
In prior art, Chinese patent CN204270079 discloses a kind of measure and control device become for photovoltaic case, is made up of remote monitoring assembly and observing and controlling assembly; Described remote monitoring assembly, comprises governance structure, Ethernet switch and optical fiber ring network controller, and wherein, Ethernet switch is connected with governance structure, optical fiber ring network controller respectively; Described observing and controlling assembly is made up of multiple monitoring structure be arranged on transformer tank, wherein, and multiple monitoring structure makeup ring web frame and being connected with optical fiber ring network controller.This patent measure and control device is without the need to additional configuration optical communication equipment (cost low, be convenient to management), realize the real-time monitoring that distant place booster stations become case, meet the operational management requirement of few man on duty in engineering, but there is the defect that product function is comprehensive, Information Monitoring amount is limited, product function degree of integration is not high, communication interface is limited.
Chinese patent CN204301873 discloses a kind of case and becomes intelligent observing and controlling system, and this TT&C system comprises: the case for carrying out observing and controlling to photovoltaic or wind power generation boosting transformer becomes intelligent measuring and control device; Multiple infrared sensor detected for the temperature becoming intelligent measuring and control device cable joint to case, the cable joint that described infrared sensor becomes intelligent measuring and control device with described case closely aims at setting; Be connected with described infrared sensor, for receiving and processing the single-chip microcomputer of described temperature of cable junction signal; Wherein, described case becomes intelligent measuring and control device and is provided with temperature control module, described single-chip microcomputer is connected with this temperature control module by isolation communicating circuit. and the intelligent box that this system can realize the temp sensing function of contactless, circling measurment becomes measure and control device, but comprehensive real-time monitoring cannot be solved, effective prevention and control security risk, carries out the technical problem of monitoring analysis to the quality of power supply.
Therefore, comprehensive real-time monitoring is carried out to photo-voltaic power supply, to the Real-Time Monitoring of the whole parameter of the generator unit quality of power supply, to analyze harmonic wave, m-Acetyl chlorophosphonazo, high order harmonic component, complete photovoltaic power generation grid-connecting relaying protection and improve plant running reliability and adapt to various adverse circumstances are technical problems that this area is badly in need of solving.
Summary of the invention
The purpose of this utility model is to provide a kind of and supports that the case of photo-voltaic power supply becomes measure and control device to solve the technical problem of the adjustment difficulty of photo-voltaic power supply, harmonic pollution, electric energy quality monitoring analysis, and provide comprehensive real-time monitoring, effective prevention and control security risk.
The technical scheme that the utility model adopts provides a kind of case supporting the quality of power supply on-line monitoring of photo-voltaic power supply and becomes measure and control device, it comprise cabinet with the backboard bus module be located in described cabinet, power module, communication cpu module, power quality analysis module, exchange module, open into module and output module.
Backboard bus module electric connection of power supply module, communication cpu module, power quality analysis module, exchange module, open into module and output module.
Described power module comprises AC power, switch unit and DC power supply, when AC interruptions, described switch unit switches described DC power supply to keep uninterrupted power supply, when described AC power restores electricity, and ac power supply described in described switch unit switchback.
Described communication cpu module comprises ARM core CPU industrial handlers and an interface module, wherein, comprise electric mouth, optical fiber interface, Ethernet interface, RS485 serial ports and the described interface module of GPS interface and be connected a described ARM core CPU industrial handlers, a described ARM core CPU industrial handlers is by the signal transacting of reception and communicate with photovoltaic power supply system.
Described power quality analysis module comprises the 2nd ARM core CPU industrial handlers, dual-ported memory, DSP core CPU industrial handlers, wherein, described DSP core CPU industrial handlers monitoring and calculating power quality data, and by described dual-ported memory data interaction to described 2nd ARM core CPU industrial handlers, described 2nd ARM core CPU industrial handlers carries out data storage and carries out harmonic analysis.
Two exchange module and are equipped with power pack and voltage changer and make eachly to exchange the collection that module at least supports 6 voltages, 6 electric currents and 2 zero-sequence currents.
Described opening is provided with forceful electric power into module and opens and open into signal for gathering photo-voltaic power supply into input contact.
The control of relay outlet for photo-voltaic power supply can be weaved in described integrated 8 tunnels of module of outputing.
Preferably, described interface module comprises video monitoring module and WIFI expansion module further.
Preferably, described DC power supply is chargeable storage and is configured with cell activation module.
Preferably, described cabinet is the all-metal industry control cabinet of back plate type structure.
Preferably, described video module is configured with touch display screen.
Preferably, described DSP core CPU industrial handlers is connected with temperature control module by isolation communicating circuit.
Preferably, described DSP core CPU industrial handlers is also provided with alarm module, and described alarm module is connected with described temperature control module, produces alarm signal when temperature of cable junction exceedes the preset temperature of temperature control module.
Preferably, described power quality analysis module is configured with wireless communication module and defencive function module.
Preferably, described power quality analysis module is configured with telecommunication management and photoelectric conversion module concentrating and transmitting for the communication information.
Preferably, described power quality analysis module is configured with the ferroelectric memory for recorded information, the clock circuit that are connected with described 2nd ARM core CPU industrial handlers and guarantees the outer watchdog circuit of program reliable operation.
Preferably, open described in and adopt photoelectric isolating circuit input to reduce electromagnetic interference and to form protection to internal circuit into module.
Support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device and achieves analog acquisition, electric parameters is protected, non-ionizing energy loss and communication function, this device has merged telecommunication management simultaneously, optical fiber ring network switch, wireless access function, be responsible for access, the data communication of smart machine in transmission generator unit, and live video monitoring camera video data transmission, realize concentrating and transmission of smart machine communication information belonging to photovoltaic generation subsystem, and by self-healing optical fibre ring Ethernet access system, and then realize the telemanagement of generator unit and automatically-monitored.
Feature of the present utility model is, measure and control device is to the energy monitor of generator unit and analysis, and it carries out the Real-Time Monitoring of the whole parameter of the quality of power supply, analyzes the effects such as harmonic wave, m-Acetyl chlorophosphonazo, high order harmonic component and power quality problem data analysis.Described device of the present utility model; photovoltaic power generation grid-connecting relaying protection can be completed, carried out on-line monitoring and the analysis of electric energy by the data gathered; can also according to collecting energy data analysis; not only multiple functional, superior performance, easy to use; and in order to improve plant running reliability, add many comprehensive criterions in conjunction with electric Physics eigenvector in the design.This device adapts to various adverse circumstances completely, and portion of techniques index has reached advanced level that is international, domestic like product.
Accompanying drawing explanation
Fig. 1 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the first embodiment of the present utility model becomes measure and control device.
Fig. 2 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the second embodiment of the present utility model becomes measure and control device.
Fig. 3 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the 3rd embodiment of the present utility model becomes measure and control device.
Wherein, 1 is cabinet, 2 is backboard bus module, 3 is power module, 4 is communication cpu module, 5 for exchanging module, 6 for opening into module, 7 for outputing module, 8 is power quality analysis module, 9 is AC power, 10 is switch unit, 11 is DC power supply, 12 is an ARM core CPU industrial handlers, 13 is temperature control module, 14 is alarm module, 15 is interface module, 16 is power pack, 17 is voltage changer, 18 is the 2nd ARM core CPU industrial handlers, 19 is dual-ported memory, 20 is DSP core CPU industrial handlers, 21 is video monitoring module, 22 is WIFI expansion module, 23 is cell activation module, 24 is wireless communication module, 25 is defencive function module, 26 is telecommunication management and photoelectric conversion module, 27 is ferroelectric memory, 28 is clock circuit, 29 is outer watchdog circuit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further explained.
The case of the quality of power supply on-line monitoring of the support photo-voltaic power supply of the first embodiment of the present utility model become measure and control device comprise it comprise cabinet 1 with the backboard bus module 2 be located in described cabinet 1, power module 3, communication cpu module 4, exchange module 5, open into module 6, output module 7 and power quality analysis module 8.Support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device and adopts all-metal cabinet 1, inner employing modular structure.Cabinet 1 can be the industry control cabinet of rectangle.In one embodiment, cabinet 1 is the all-metal industry control cabinet of back plate type structure.
Fig. 1 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the first embodiment of the present utility model becomes measure and control device.See Fig. 2, backboard bus module 2 electric connection of power supply module 3, communication cpu module 4, exchange module 5, open into module 6, output module 7 and power quality analysis module 8.
Described power module 3 comprises AC power 9, switch unit 10 and DC power supply 11, when AC power 9 is interrupted, described switch unit 10 switches described DC power supply 11 to keep uninterrupted power supply, when described AC power 9 restores electricity, described in the switchback of described switch unit 10, AC power 9 is powered.Power module 3 provides AC power 9 and the standby DC power supply 11 of work for device, and AC power 9 supports that AC/DC supplies power with double circuit.The DC power supply 11 of standby adopts chargeable storage to power.In one embodiment, the DC power supply 11 of standby adopts lead accumulator to power.Once AC power 9 is interrupted, device automatically switches to DC power supply 11 direct current supply mode by switch unit 10 in undisturbed situation; When AC power 9 restores electricity, device automatically switches back ac power supply method, in all electrical source exchange processes, and the sustainable normal work of device.
In one embodiment, described DC power supply 11 is chargeable storage and is configured with cell activation module 23.Cell activation module 23 have cell activation safeguard effect, can timing, fixed cycle two kinds of pattern auto-activation storage batterys.DC power supply 11 can provide the DC power supply of 24V/48V to export, to the equipment use of the photo-voltaic power supply outside device simultaneously.
Communication cpu module 4 comprises ARM core CPU industrial handlers 12 and an interface module 15, wherein, comprise electric mouth, optical fiber interface, Ethernet interface, RS485 serial ports and the described interface module 15 of GPS interface and be connected a described ARM core CPU industrial handlers 12, a described ARM core CPU industrial handlers 12 is by the signal transacting of reception and communicate with photovoltaic power supply system, in one embodiment, a described ARM core CPU industrial handlers 12 communicates with photovoltaic system and other intelligent apparatus.In one embodiment, this communication cpu module 4 is provided with embedded ethernet Switching Module, configurable some light mouths and electric mouth and photoelectric conversion module, can support at most 4 electric mouths and 4 light mouths.
The grid-connected needs of photovoltaic plant is applied to inverter, and the quality that the control technology of inverter and photovoltaic generation portion are connected to the grid is also closely related.At present, utilize inverter capacity and maximum generating watt for maximum, the power factor of combining inverter can be set in 0.99 by producer.But along with the increase of photovoltaic plant installed capacity, due to the power fluctuation of photovoltaic generation, the High Power Factor of inverter runs and threatens to the stability of electrical network, meritorious constant time, idlely almost can not to regulate, need extra idle come ME for maintenance.In addition, when inverter exports underloading, harmonic wave can obviously become large, and time below 10% rated output, the total harmonic distortion factor of electric current even can reach more than 20%.Photovoltaic generation power has an impact to network load characteristic with intensity of sunshine change, and its access changes electric network swim direction, the planning to existing electrical network, dispatching running way is had an impact.And photovoltaic generation unit does not have dispatching automation function, increase the difficulty of power grid control and management and running.If a large amount of photovoltaic generating system access electric network terminal, will aggravate voltage fluctuation, may cause the frequent movement of Voltage-Reactive Power adjusting device; And if photovoltaic generating system is introduced at high proportion, will power distribution network be made to become both-end even multi-terminal network from traditional single supply radial networks, thus change the size, duration etc. of fault current, have influence on the protection of system.Power quality analysis module 8 of the present utility model can solve the problem, power quality analysis module 8 comprises the 2nd ARM core CPU industrial handlers 18, dual-ported memory 19, DSP core CPU industrial handlers 20, wherein, described DSP core CPU industrial handlers 20 is monitored and calculates power quality data, and by the data interaction of described dual-ported memory 19 to described 2nd ARM core CPU industrial handlers 18, described 2nd ARM core CPU industrial handlers 18 carries out data storage and carries out harmonic analysis.Electric energy quality monitoring analytic function amount of calculation is larger, therefore, the DSP+ARM double-core industrial handlers that power quality analysis module 8 adopts is the floating-point signal processor that power consumption is lower, fully can meet the high energy efficiency of quality of power supply on-line monitoring analytical applications, the demand of connective design to high integration peripheral hardware, dissipation more low in calories.Wherein, DSP core CPU industrial handlers 20 can communicate with the monitoring host computer of photo-voltaic power supply, scheduling station, remote signalling, remote measurement, electric degree, power quality data etc. are sent on being responsible for, also can receive the order such as remote control divide-shut brake, remote regulating of main website simultaneously, DSP core CPU industrial handlers 20 communicates with the smart machine of the generator unit inside of photo-voltaic power supply, the equipment such as such as inverter, intelligent junction box, electric energy meter, environment monitor, can forward orders such as smart machine remote regulating, start and stop such as inverters, communication protocol easily extensible, to can customize.For the IDT7132 two-port RAM that the dual-ported memory 19 of the data of data interaction two nuclear industry processors adopts American TI to produce, it has 2KX8BIT memory capacity, can meet the exchanges data requirement between DSP core CPU industrial handlers 20 and the 2nd ARM core CPU industrial handlers 18 completely.The storage administration of the 2nd ARM core CPU industrial handlers 18 primary responsibility historical data and analysis etc.In one embodiment, interface module 15 comprises video monitoring module 21 and WIFI expansion module 22 further.Power quality analysis module 8 can be supported the metering of electric energy and analyze the functions such as harmonic wave, m-Acetyl chlorophosphonazo, high order harmonic component, adds up photo-voltaic power supply energy output and the monitoring transformer of photo-voltaic power supply and the magnetic saturation phenomenon of electromagnetic component and prevent mechanical load generation torque pulsation for user.In one embodiment, power quality analysis module 8 is configured with wireless communication module 24 and defencive function module 25 to support the wireless communications modes such as GPRS/CDMA/3G/4G.In the place of inconvenient deployed fiber, wireless public network mode can be adopted to communicate, defencive function module 25 pairs of power quality analysis modules 8 provide the protective effects such as protecting against shock.
Two exchange module 5 and are equipped with power pack 16 and voltage changer 17 to support multiple voltage, electric current and zero-sequence current collection, and in one embodiment, one exchanges module 5 and at least can support 6 voltages, 6 electric currents and 2 zero-sequence current collections.Open and be provided with forceful electric power into module 6 and open and open into signal for gathering photo-voltaic power supply into input contact.In one embodiment, open described in and be provided with 32 road forceful electric power into module 6 and open and gather the signal such as voltage, electric current of photo-voltaic power supply into input contact.Output integrated 8 tunnels of module 7 and can weave into the control of relay outlet for photo-voltaic power supply.
The case of the quality of power supply on-line monitoring of the support photo-voltaic power supply of the first embodiment of the present utility model becomes measure and control device and possesses photovoltaic case change high-pressure side, the analog acquisition of low-pressure side transformer with split winding, electric parameters is protected, non-ionizing energy loss, Long-distance Control and communication function, this device has merged communication processor simultaneously, optical fiber ring network switch, wireless access function, be responsible for access, inverter in transmission generator unit, the data communication of the equipment such as intelligent junction box, and live video monitoring camera video data transmission, realize concentrating and transmission of smart machine communication information belonging to photovoltaic generation subsystem, and by self-healing optical fibre ring Ethernet access booster stations integrated system, and then realize booster stations to the telemanagement of photovoltaic generation unit and automatically-monitored.This device can carry out on-line monitoring and the analysis of the quality of power supply by the data gathered, therefore, this device not only multiple functional, superior performance, easy to use, and in order to improve plant running reliability, device adapts to various adverse circumstances completely.
Fig. 2 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the second embodiment of the present utility model becomes measure and control device.See Fig. 3, backboard bus module 2 electric connection of power supply module 3, communication cpu module 4, exchange module 5, open into module 6, output module 7 and power quality analysis module 8.
Described power module 3 comprises AC power 9, switch unit 10 and DC power supply 11, when AC power 9 is interrupted, described switch unit 10 switches described DC power supply 11 to keep uninterrupted power supply, when described AC power 9 restores electricity, described in the switchback of described switch unit 10, AC power 9 is powered.Power module 3 provides AC power 9 and the standby DC power supply 11 of work for device, and AC power 9 supports that AC/DC supplies power with double circuit.The DC power supply 11 of standby adopts chargeable storage to power.
Communication cpu module 4 comprises ARM core CPU industrial handlers 12 and an interface module 15, wherein, comprise electric mouth, optical fiber interface, Ethernet interface, RS485 serial ports and the described interface module 15 of GPS interface and be connected a described ARM core CPU industrial handlers 12, a described ARM core CPU industrial handlers 12 is by the signal transacting of reception and communicate with photovoltaic power supply system, in one embodiment, a described ARM core CPU industrial handlers 12 communicates with photovoltaic system and other intelligent apparatus.
Power quality analysis module 8 comprises the 2nd ARM core CPU industrial handlers 18, dual-ported memory 19, DSP core CPU industrial handlers 20, wherein, described DSP core CPU industrial handlers 20 is monitored and calculates power quality data, and by the data interaction of described dual-ported memory 19 to described 2nd ARM core CPU industrial handlers 18, described 2nd ARM core CPU industrial handlers 18 carries out data storage and carries out harmonic analysis.Electric energy quality monitoring analytic function amount of calculation is larger, therefore, the DSP+ARM double-core industrial handlers that power quality analysis module 8 adopts is the floating-point signal processor that power consumption is lower, fully can meet the high energy efficiency of quality of power supply on-line monitoring analytical applications, the demand of connective design to high integration peripheral hardware, dissipation more low in calories.Wherein, DSP core CPU industrial handlers 20 can communicate with the monitoring host computer of photo-voltaic power supply, scheduling station, remote signalling, remote measurement, electric degree, power quality data etc. are sent on being responsible for, also can receive the order such as remote control divide-shut brake, remote regulating of main website simultaneously, DSP core CPU industrial handlers 20 communicates with the smart machine of the generator unit inside of photo-voltaic power supply, the equipment such as such as inverter, intelligent junction box, electric energy meter, environment monitor, can forward orders such as smart machine remote regulating, start and stop such as inverters, communication protocol easily extensible, to can customize.For the IDT7132 two-port RAM that the dual-ported memory 19 of the data of data interaction two nuclear industry processors adopts American TI to produce, it has 2KX8BIT memory capacity, can meet the exchanges data requirement between DSP core CPU industrial handlers 20 and the 2nd ARM core CPU industrial handlers 18 completely.The storage administration of the 2nd ARM core CPU industrial handlers 18 primary responsibility historical data and analysis etc.In one embodiment, interface module 15 comprises video monitoring module 21 and WIFI expansion module 22 further.Power quality analysis module 8 can be supported the metering of electric energy and analyze the functions such as harmonic wave, m-Acetyl chlorophosphonazo, high order harmonic component, adds up photo-voltaic power supply energy output and the monitoring transformer of photo-voltaic power supply and the magnetic saturation phenomenon of electromagnetic component and prevent mechanical load generation torque pulsation for user.In one embodiment, power quality analysis module 8 is configured with wireless communication module 24 and defencive function module 25 to support the wireless communications modes such as GPRS/CDMA/3G/4G.In the place of inconvenient deployed fiber, wireless public network mode can be adopted to communicate, defencive function module 25 pairs of power quality analysis modules 8 provide the protective effects such as protecting against shock.
Further, power quality analysis module 8 is configured with telecommunication management and photoelectric conversion module 26 concentrating and transmitting for the communication information, realizes concentrating and transmission of the communication information of photo-voltaic power supply, decreases secondary distribution simultaneously, convenient maintenance in the future.
Two exchange module 5 and are equipped with power pack 16 and voltage changer 17 to support multiple voltage, electric current and zero-sequence current collection, and in one embodiment, one exchanges module 5 and at least can support 6 voltages, 6 electric currents and 2 zero-sequence current collections.Open and be provided with forceful electric power into module 6 and open and open into signal for gathering photo-voltaic power supply into input contact.In one embodiment, open described in and be provided with 32 road forceful electric power into module 6 and open and gather the signal such as voltage, electric current of photo-voltaic power supply into input contact.Output integrated 8 tunnels of module 7 and can weave into the control of relay outlet for photo-voltaic power supply.
The case of the quality of power supply on-line monitoring of the support photo-voltaic power supply of the second embodiment of the present utility model becomes measure and control device not only multiple functional, superior performance, easy to use, and in order to improve plant running reliability, realize concentrating and transmission of information in the design, decrease secondary distribution, convenient maintenance in the future simultaneously.
Fig. 3 is the cabinet inner structure schematic diagram that the case of the quality of power supply on-line monitoring of support photo-voltaic power supply according to the 3rd embodiment of the present utility model becomes measure and control device.See Fig. 3, support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes the all-metal industry control cabinet that measure and control device is back plate type structure.
Backboard bus module 2 electric connection of power supply module 3, communication cpu module 4, exchange module 5, open into module 6, output module 7 and power quality analysis module 8.
Described power module 3 comprises AC power 9, switch unit 10 and DC power supply 11, when AC power 9 is interrupted, described switch unit 10 switches described DC power supply 11 to keep uninterrupted power supply, when described AC power 9 restores electricity, described in the switchback of described switch unit 10, AC power 9 is powered.Power module 3 provides AC power 9 and the standby DC power supply 11 of work for device, and AC power 9 supports that AC/DC supplies power with double circuit.The DC power supply 11 of standby adopts chargeable storage to power.
Communication cpu module 4 comprises ARM core CPU industrial handlers 12 and an interface module 15, wherein, comprise electric mouth, optical fiber interface, Ethernet interface, RS485 serial ports and the described interface module 15 of GPS interface and be connected a described ARM core CPU industrial handlers 12, a described ARM core CPU industrial handlers 12 is by the signal transacting of reception and communicate with photovoltaic power supply system, in one embodiment, a described ARM core CPU industrial handlers 12 communicates with photovoltaic system and other intelligent apparatus.
Power quality analysis module 8 comprises the 2nd ARM core CPU industrial handlers 18, dual-ported memory 19, DSP core CPU industrial handlers 20, wherein, described DSP core CPU industrial handlers 20 is monitored and calculates power quality data, and by the data interaction of described dual-ported memory 19 to described 2nd ARM core CPU industrial handlers 18, described 2nd ARM core CPU industrial handlers 18 carries out data storage and carries out harmonic analysis.Electric energy quality monitoring analytic function amount of calculation is larger, therefore, the DSP+ARM double-core industrial handlers that power quality analysis module 8 adopts is the floating-point signal processor that power consumption is lower, fully can meet the high energy efficiency of quality of power supply on-line monitoring analytical applications, the demand of connective design to high integration peripheral hardware, dissipation more low in calories.Power quality analysis module 8 can be supported the metering of electric energy and analyze the functions such as harmonic wave, m-Acetyl chlorophosphonazo, high order harmonic component, adds up photo-voltaic power supply energy output and the monitoring transformer of photo-voltaic power supply and the magnetic saturation phenomenon of electromagnetic component and prevent mechanical load generation torque pulsation for user.In one embodiment, power quality analysis module 8 is configured with wireless communication module 24 and defencive function module 25 to support the wireless communications modes such as GPRS/CDMA/3G/4G.In the place of inconvenient deployed fiber, wireless public network mode can be adopted to communicate, defencive function module 25 pairs of power quality analysis modules 8 provide the protective effects such as protecting against shock.Power quality analysis module 8 is configured with the ferroelectric memory 27 for recorded information, the clock circuit 28 that are connected with a described ARM core CPU industrial handlers 18 and guarantees the outer watchdog circuit 29 of program reliable operation, prevents program fleet.
The case of the photo-voltaic power supply of the 3rd embodiment of the present utility model becomes measure and control device not only multiple functional, superior performance, easy to use, and in order to improve plant running reliability, realizes the storage guaranteed program reliable operation and realize information and data in the design.
Although be below described embodiment of the present utility model by reference to the accompanying drawings, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art, under the enlightenment of this specification and when not departing from the scope that the utility model claim is protected, can also make a variety of forms, and these all belong to the row of the utility model protection.

Claims (10)

1. support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device for one kind, it comprise cabinet (1) with the backboard bus module (2) be located in described cabinet (1), power module (3), communication cpu module (4), power quality analysis module (8), exchange module (5), open into module (6) and output module (7), wherein
Described backboard bus module (2) electric connection of power supply module (3), communication cpu module (4), power quality analysis module (8), exchange module (5), open into module (6) and output module (7);
Described power module (3) comprises AC power (9), switch unit (10) and DC power supply (11), when AC power (9) is interrupted, described switch unit (10) switches described DC power supply (11) to keep uninterrupted power supply, when described AC power (9) restores electricity, AC power (9) power supply described in described switch unit (10) switchback;
Described communication cpu module (4) comprises ARM core CPU industrial handlers (12) and interface module (15), wherein, comprise electric mouth, optical fiber interface, Ethernet interface, RS485 serial ports and the described interface module (15) of GPS interface and be connected described ARM core CPU industrial handlers (12), described ARM core CPU industrial handlers (12) is by the signal transacting of reception and communicate with photovoltaic power supply system;
Described power quality analysis module (8) comprises the 2nd ARM core CPU industrial handlers (18), dual-ported memory (19), DSP core CPU industrial handlers (20), wherein, described DSP core CPU industrial handlers (20) monitoring and calculating power quality data, and by described dual-ported memory (19) data interaction to described 2nd ARM core CPU industrial handlers (18), described 2nd ARM core CPU industrial handlers (18) carries out data storage and carries out harmonic analysis;
Two exchange module (5) and are equipped with power pack (16) and voltage changer (17) and make eachly to exchange the collection that module (5) at least supports 6 voltages, 6 electric currents and 2 zero-sequence currents;
Described opening is provided with forceful electric power into module (6) and opens and open into signal into input contact for gathering photo-voltaic power supply;
The control of relay outlet for photo-voltaic power supply can be weaved in described integrated 8 tunnels of module (7) of outputing.
2. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 1, is characterized in that: described interface module (15) comprises video monitoring module (21) and WIFI expansion module (22) further.
3. as claimed in claim 1 support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device, it is characterized in that: described DC power supply (11) is for chargeable storage and be configured with cell activation module (23).
4. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 1, is characterized in that: the all-metal industry control cabinet that described cabinet (1) is back plate type structure.
5. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 1, is characterized in that: described DSP core CPU industrial handlers (20) is connected with temperature control module (13) by isolation communicating circuit.
6. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 5, it is characterized in that: described DSP core CPU industrial handlers (20) is also provided with alarm module (14), described alarm module (14) is connected with described temperature control module (13), produces alarm signal when temperature of cable junction exceedes the preset temperature of temperature control module (13).
7. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 1, is characterized in that: described power quality analysis module (8) is configured with wireless communication module (24) and defencive function module (25).
8. the case change measure and control device supporting the quality of power supply on-line monitoring of photo-voltaic power supply as claimed in claim 1, is characterized in that: described power quality analysis module (8) is configured with telecommunication management and photoelectric conversion module (26) concentrating and transmitting for the communication information.
9. as claimed in claim 1 support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device, it is characterized in that: described power quality analysis module (8) is configured with the ferroelectric memory for recorded information (27), the clock circuit (28) that are connected with described 2nd ARM core CPU industrial handlers (18) and guarantees the outer watchdog circuit (29) of program reliable operation.
10. as claimed in claim 1 support that the case of the quality of power supply on-line monitoring of photo-voltaic power supply becomes measure and control device, it is characterized in that: described in open and adopt photoelectric isolating circuit input to protect to reduce electromagnetic interference and to be formed internal circuit into module (6).
CN201520386682.4U 2015-06-05 2015-06-05 Case of supporting photovoltaic power's electric energy quality on -line monitoring becomes measurement and control device Active CN204761158U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106201627A (en) * 2016-07-21 2016-12-07 南京大全自动化科技有限公司 A kind of new forms of energy photovoltaic case becomes TT&C system and teleprogram method for edition management thereof
CN107065633A (en) * 2016-08-29 2017-08-18 特变电工南京智能电气有限公司 A kind of novel intelligent integrated test control terminal
CN112198361A (en) * 2020-10-12 2021-01-08 宁夏凯晨电气集团有限公司 Electric singular point monitoring device based on frequency energy ratio

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106201627A (en) * 2016-07-21 2016-12-07 南京大全自动化科技有限公司 A kind of new forms of energy photovoltaic case becomes TT&C system and teleprogram method for edition management thereof
CN107065633A (en) * 2016-08-29 2017-08-18 特变电工南京智能电气有限公司 A kind of novel intelligent integrated test control terminal
CN112198361A (en) * 2020-10-12 2021-01-08 宁夏凯晨电气集团有限公司 Electric singular point monitoring device based on frequency energy ratio

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