CN203674809U - Box-type transformer measuring and control device for photovoltaic power generation - Google Patents
Box-type transformer measuring and control device for photovoltaic power generation Download PDFInfo
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- CN203674809U CN203674809U CN201420063426.7U CN201420063426U CN203674809U CN 203674809 U CN203674809 U CN 203674809U CN 201420063426 U CN201420063426 U CN 201420063426U CN 203674809 U CN203674809 U CN 203674809U
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- 238000010248 power generation Methods 0.000 title abstract 2
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- 238000004804 winding Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
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- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
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- 238000004146 energy storage Methods 0.000 description 4
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a box-type transformer measuring and control device for photovoltaic power generation, which belongs to the technical field of transformer measuring and control device. The adopted technical scheme is that a front panel (1) comprises a liquid crystal module, an intelligent single chip microcomputer, a key and driving circuit and an signal lamp indicating circuit, a No.1 AC plug-in (2), a No.2 AC plug-in (3), a main CPU plug-in (4), a No.1 intelligent plug-in (5) and a No.2 intelligent plug-in (6) are sequentially arranged on the device, and are connected with each other through mainboard buses of the front panel. The box-type transformer measuring and control device adopts a reinforced unit chassis, is designed for resisting strong vibration and strong interference, ensures that the device has high reliability when installed in field with severe conditions, can perform real-time monitoring and management on electrical quantities, non-electrical quantities and on-off state of high and low voltage sides of a dual-splitting winding transformer at the same time, reduces connecting wires among the plug-ins, can perform real-time detection on plugging conditions, is adapt to a work environment with a wide temperature range of between minus 40 DEG C and 70 DEG C, and meets severe conditions of the photovoltaic electric field.
Description
Technical field
The utility model relates to a kind of photovoltaic generation case and becomes measure and control device, belongs to transformer measure and control device technical field.
Background technology
At present, grid-connected photovoltaic power station is generally built in lonely, the ground such as the severe grassland of environment, hillside, Gobi desert, and box type transformer installation site disperses, and quantity is many, patrol and examine and safeguard relative difficulty, master-control room or field operator can not know the ruuning situation that every case becomes timely and accurately.And the amount of information collection that the case of photovoltaic plant is become contributes to the working condition of master-control room or the instant understanding current device of field operator, not only can provide reliable data message for daily data analysis and accident analysis, also can carry out for some special circumstances divide-shut brake of Long-distance Control case change etc.
The box type transformer majority of photovoltaic plant is two division windings, general 35kV and following electric pressure transformer measure and control device are only applicable to two winding transformer, if for the box type transformer of photovoltaic plant, need to configure two, cost is high, and can not meet-40 ℃～70 ℃ severe operational environments, not be suitable for the box type transformer of grid-connected photovoltaic power station.
Utility model content
The utility model object is to provide a kind of photovoltaic generation case and becomes measure and control device, can all electric parameters of high and low pressure side, non-electric quantity and the on off state of two Split winding transformers be monitored in real time and be managed simultaneously, and adapt to photovoltaic DC field-40 ℃～70 ℃ of severe operational environments, solve the problems referred to above that exist in background technology.
The technical solution of the utility model is: a kind of photovoltaic generation becomes measure and control device with case, comprise front panel, exchange plug-in unit for No. one, exchange plug-in unit, host CPU (central processing unit) plug-in unit, a chip card and No. two chip cards No. two, described front panel comprises Liquid Crystal Module, intelligent single-chip microcomputer, button and drive circuit and signal lamp indicating circuit, an interchange plug-in unit, No. two interchange plug-in units, main CPU plug-in, a chip card, No. two chip cards are arranged in order on device, are connected to each other by the motherboard bus of front panel.
The described plug-in unit that exchanges for No. comprises three first via power packs and three first via voltage changers.
The described plug-in unit that exchanges for No. two comprises three the second road power packs and three No. second voltage changers.
Described main CPU plug-in comprises ARM type 32-bit microprocessor, 32 bit DSP microprocessors, RAM(random asccess memory), A/D(ac/dc) conversion, Flash Memory(flash memory), ethernet port, 485 ports, optical transmitter and receiver and interlock circuit.
A described chip card comprises 8 intelligent single-chip microcomputers, input and output drive circuit, CANBUS(serial bus system) interlock circuit, breaker tripping and closing operation circuit, trip-proof lockout, pressure atresia, breaker tripping and closing position, remote control breaker tripping and closing, remote signals and input and output relay for subsequent use.
Described No. two chip cards comprise power module and non electrical quantity protected location.
The beneficial effects of the utility model are: adopt reinforced unit cabinet, press that against violent vibration is moving, strong jamming design, guarantee that device still possesses high reliability while being installed on inclement condition on-the-spot, can all electric parameters of high and low pressure side, non-electric quantity and the on off state of two Split winding transformers be monitored in real time and be managed simultaneously, the ruuning situation that facilitates every case of field operator's understanding promptly and accurately to become, reduce the line between plug-in unit, can detect in real time patching situation,-40 ℃～70 ℃ wide temperature operational environments, meet the mal-condition of photovoltaic DC field.
Accompanying drawing explanation
Fig. 1 is the utility model specified time current protection theory diagram;
Fig. 2 is the utility model inverse-time overcurrent protection theory diagram;
Fig. 3 is the utility model under-voltage protection theory diagram;
Fig. 4 is the utility model overload protection theory diagram;
Fig. 5 is the utility model non electrical quantity protection philosophy block diagram;
Fig. 6 is front view of the present utility model;
Fig. 7 is rearview of the present utility model;
In figure: front panel 1; Exchange plug-in unit 2 No. one; Exchange plug-in unit 3 No. two; Main CPU plug-in 4; A chip card 5; No. two chip cards 6.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
A kind of photovoltaic generation becomes measure and control device with case, comprise front panel 1, exchange plug-in unit 2 for No. one, exchange plug-in unit 3 for No. two, main CPU plug-in 4, chip card 5 and No. two chip cards 6, described front panel 1 comprises Liquid Crystal Module, intelligent single-chip microcomputer, button and drive circuit and signal lamp indicating circuit, exchange plug-in unit 2 for No. one, exchange plug-in unit 3 for No. two, main CPU plug-in 4, chip card 5, No. two chip cards 6 are arranged in order on device, be connected to each other by the motherboard bus of front panel 1.
The described plug-in unit 2 that exchanges for No. comprises three first via power packs and three first via voltage changers.
The described plug-in unit 3 that exchanges for No. two comprises three the second road power packs and three No. second voltage changers.
Described main CPU plug-in 4 comprises ARM type 32-bit microprocessor, 32 bit DSP microprocessors, RAM, A/D conversion, Flash Memory, ethernet port, 485 ports, optical transmitter and receiver and interlock circuit.
A described chip card 5 comprises 8 intelligent single-chip microcomputers, input and output drive circuit, CANBUS interlock circuit, breaker tripping and closing operation circuit, trip-proof lockout, pressure atresia, breaker tripping and closing position, remote control breaker tripping and closing, remote signals and input and output relay for subsequent use.
Described No. two chip cards 6 comprise power module and non electrical quantity protected location.
Protection philosophy
1, two sections of specified time current protections
Device is established two sections of specified time current protections, and each section of electric current and time definite value can independently be adjusted, and moves back by the throwing that this two segment protect of protection pressing plate control is set respectively, and protection starts locking TV burn out detection.
2, inverse-time overcurrent protection
Device is provided with the 3rd section of overcurrent protection, optional specified time or inverse time lag, can be thrown and be moved back by soft pressing plate.This device is the altogether integrated inverse-time overcurrent protection of three specific characters, user can select the inverse time protection of any characteristic as required.
3, under-voltage protection
Device is provided with under-voltage protection, can be thrown and be moved back by soft pressing plate.Low-voltage just drops into while having mutually stream (I>0.04In) arbitrary.Rear this protection of TV broken string is thrown to move back by control word DYBS and is controlled in addition.Under-voltage protection can have control word to select tripping operation or alarm;
Note: exit as under-voltage protection after selecting the action of TV broken string, under-voltage protection time fixed value adjusting need be greater than 0.1s.
4, overload protection
Device is provided with overload protection, can be thrown and be moved back by soft pressing plate.Overload protection can be adjusted as tripping operation or alarm by control word in addition.
5, non electrical quantity protection
The protection of device non electrical quantity is provided with independent plug-in unit, is provided with non electrical quantity and directly jumps and alarm signal two classes.Non electrical quantity directly jump comprise that this body weight gas, oil temperature are high, earth pressure release etc. amount to six tunnels open into, install straight rebound road by above six kinds of non-electric charge quantity signallings at direct current 220v(110v) heavily moving, output body is jumped the contacts such as high-pressure side, low-pressure side, and above function is not subject to the impact of CPU weak electrical loop.Be provided with that the alarm of this body weight gas, the light gas alarm of body, oil temperature are high, earth pressure release Deng Shi road alarm input simultaneously;
This plug-in unit gathers above all non electrical quantity information respectively, flows to protection system, produces the information such as SOE report, shows and supervisory control system transmission for locality.When non electrical quantity tripping operation and alarm, light panel non-electric charge quantity signalling lamp, provide non electrical quantity wink to move signal and central signal contact simultaneously.
6, control loop abnormality alarming
Device gathers jumping position and the co-bit of circuit breaker; when power supply is normal, circuit breaker position auxiliary contact is when normal; must there is one to jump position or co-bit; otherwise; through 3s time delay report " control loop is abnormal " alarm signal (band operation loop signal plug-in unit) or " position of the switch is abnormal " alarm signal (without operation circuit signal plug-in unit), but not latch-up protection.
7, not energy storage alarm of spring
Device be provided with spring not energy storage open into, device and receive and open into the not energy storage of rear time delay 25s report spring, send out alarm signal.
8, pressure anomaly alarm
Device is provided with circuit breaker pressure anomaly and opens into, device and receive and open into rear time delay 1s report pressure anomaly, sends out alarm signal.
9, plant failure alarm
The hardware of protective device breaks down (comprise that definite value makes mistakes, definite value area code is made mistakes, and outputs self-checking alarming, and inner member is abnormal, and module communication is abnormal), and the LCD of device can show fault message, and latch-up protection output loop, send out central signal simultaneously.
10, remote measurement, remote signalling, distant control function
The remote measurement of the analog quantitys such as remote measurement: P1, Q1, Ia1, Ib1, Ic1, Uab1, Ubc1, Uca1, f 1, COS φ 1, P2, Q2, Ia2, Ib2, Ic2, Uab2, Ubc2, Uca2, f 2, COS φ 2, two-way 4-20MA (0-5V) is optional;
Remote signalling: 21 tunnel remote signalling are opened into collection, device remote signalling displacement, accident remote signalling;
Remote control: breaker tripping and closing are controlled in a distant place, pressing plate is thrown and is moved back, revises definite value etc.
11, record ripple
Surrounding ripple before device record protection tripping operation, the sampled data of six cycles (every cycle 48 points) after tripping operation, trip protection Hou Shangsong automation of transformation substations main website, or by accident analysis software independently, the tripping operation behavior of analysis of failure and device.
12, GPS to time
Device by with automation of transformation substations master station communication, obtain the information of date Hour Minute Second, and configure a GPS to time open into, connect the pulse per second (PPS) output of the interior gps receiver that arrives at a station, realize millisecond to time, to time precision be less than 1ms.
13, printing function
For the device that is configured to single net, configurable network printer sharing, operative installations RS-485 interface, printable definite value and action report, Self-Check Report, intake variation etc.; Another RS-485 interface can be connected to electric substation automation system, prints by main website, also can in Ethernet major network, in the time that system is idle, carry out message printing;
For the device that is configured to two nets, can be connected to electric substation automation system, print by main website, install no longer configure printer.
14, network service
Device can be selected Dual-Ethernet, two CANBUS, two 485 communication interfaces or Ethernet+485 communication modes flexibly, can directly communicate by letter with micro computer monitoring or protection manage computer, and stipulations adopt power industry standard DL/T667-1999(IEC-60870-5-103).
The utility model adopts full aluminium section bar standard PC case, high 4U, and device adopts reinforced unit cabinet, and, strong jamming moving by against violent vibration designs, and guarantees that device still possesses high reliability while being installed on inclement condition on-the-spot.The design of many CPU chip card, input and output plug-in unit is realized self check completely in real time; Each relay coil can be detected.Between each plug-in unit, based on the contact of CANBUS bus, reduce the line between plug-in unit, can detect in real time patching situation.Two 32 machine systems, system redundancy is large; 32 float-point DSP processor that defencive function adopts Texas Instruments to produce, program and data are moved in sheet; The speed of service is fast, and reliability is high.32 ARM chip microcontroller that the management function such as man-machine interface, network communication is produced by PHILIPS Co., speed is fast, and sheet internal storage capacity is large, and network interface capabilities is strong; 16 bit AD samples, certainty of measurement is high; Every cycle 48 point samplings, harmonic management ability is strong; Protection module adopts area of computer aided graphical interfaces principle (PLC) design, is convenient to series of products secondary development and function and revises, and engineering design flexibly, fast; Complete breaker operator loop, is provided with not energy storage locking closing function etc. of remote control breaker tripping and closing, pressure atresia, spring; Large color screen liquid crystal display screen, Chinese interface menu shows;-40 ℃～70 ℃ wide temperature operational environments, meet the mal-condition of photovoltaic DC field.
Claims (6)
1. a photovoltaic generation becomes measure and control device with case, it is characterized in that: comprise front panel (1), exchange plug-in unit (2) No. one, exchange plug-in unit (3) No. two, main CPU plug-in (4), a chip card (5) and No. two chip cards (6), described front panel (1) comprises Liquid Crystal Module, intelligence single-chip microcomputer, button and drive circuit and signal lamp indicating circuit, exchange plug-in unit (2) No. one, exchange plug-in unit (3) No. two, main CPU plug-in (4), a chip card (5), No. two chip cards (6) are arranged in order on device, motherboard bus by front panel (1) is connected to each other.
2. a kind of photovoltaic generation according to claim 1 becomes measure and control device with case, it is characterized in that: the described plug-in unit (2) that exchanges for No. comprises three first via power packs and three first via voltage changers.
3. a kind of photovoltaic generation according to claim 1 becomes measure and control device with case, it is characterized in that: the described plug-in unit (3) that exchanges for No. two comprises three the second road power packs and three No. second voltage changers.
4. a kind of photovoltaic generation according to claim 1 becomes measure and control device with case, it is characterized in that: described main CPU plug-in (4) comprises ARM type 32-bit microprocessor, 32 bit DSP microprocessors, RAM, A/D conversion, Flash Memory, ethernet port, 485 ports, optical transmitter and receiver and interlock circuit.
5. a kind of photovoltaic generation according to claim 1 becomes measure and control device with case, it is characterized in that: a described chip card (5) comprises 8 intelligent single-chip microcomputers, input and output drive circuit, CANBUS interlock circuit, breaker tripping and closing operation circuit, trip-proof lockout, pressure atresia, breaker tripping and closing position, remote control breaker tripping and closing, remote signals and input and output relay for subsequent use.
6. a kind of photovoltaic generation according to claim 1 becomes measure and control device with case, it is characterized in that: described No. two chip cards (6) comprise power module and non electrical quantity protected location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063426.7U CN203674809U (en) | 2014-02-13 | 2014-02-13 | Box-type transformer measuring and control device for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063426.7U CN203674809U (en) | 2014-02-13 | 2014-02-13 | Box-type transformer measuring and control device for photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674809U true CN203674809U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063426.7U Expired - Lifetime CN203674809U (en) | 2014-02-13 | 2014-02-13 | Box-type transformer measuring and control device for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290609A (en) * | 2017-07-20 | 2017-10-24 | 河南远中电力设备有限公司 | A kind of comprehensive testing device for transformer |
-
2014
- 2014-02-13 CN CN201420063426.7U patent/CN203674809U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290609A (en) * | 2017-07-20 | 2017-10-24 | 河南远中电力设备有限公司 | A kind of comprehensive testing device for transformer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |