CN105703708A - Photovoltaic power station monitoring system and method - Google Patents
Photovoltaic power station monitoring system and method Download PDFInfo
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- CN105703708A CN105703708A CN201610236139.5A CN201610236139A CN105703708A CN 105703708 A CN105703708 A CN 105703708A CN 201610236139 A CN201610236139 A CN 201610236139A CN 105703708 A CN105703708 A CN 105703708A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 26
- 230000003993 interaction Effects 0.000 claims abstract description 15
- 238000010248 power generation Methods 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
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- 230000008569 process Effects 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
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- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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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
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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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- 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
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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
- 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
- Y04S40/126—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 wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a photovoltaic power station monitoring system and method. The system comprises a monitoring terminal, wherein the monitoring terminal is provided with a bus, and an analogue quantity input card, a switching quantity input card, a switching quantity output card, a first processor and a second processor which are connected with the bus respectively; the switching quantity output card is connected with circuit breakers at the two ends of a transformer; and the monitoring terminal is connected with a computer in a wired and/or wireless way. The method comprises the following steps that: the monitoring terminal acquires data; the first processor and the second processor acquire data on the bus at the same time; and the second processor transmits the data to human-computer interaction equipment and communication exchange equipment. According to the photovoltaic power station monitoring system and method, dual processors are adopted innovatively, responsible for protecting and monitoring functions respectively, and used for acquiring the data on the bus at the same time and uniformly analyzing and utilizing the data, so that a demand of data timeliness is met; data sharing is realized; repeated data utilization is avoided; data consistency and availability are kept; and monitoring, protection and control of a photovoltaic power station are realized.
Description
Technical field
The present invention relates to photo-voltaic power generation station technical field, more specifically, relate to a kind of photovoltaic power station monitoring system and monitoring method。
Background technology
In recent years, there are two trend in the intelligent management for major part photovoltaic plant。
1) from the structure of photovoltaic plant Intelligent management device, it is primarily directed to single intelligent cell, then these intelligent cells is coupled together by the network equipment。Application number be 201510696114.9 Chinese invention patent application disclose a kind of area distribution formula photovoltaic generation power supply monitoring system, described area distribution formula photovoltaic generation power supply monitoring system includes serving BS platform, on-site terminal platform, communication network and photovoltaic plant operation monitoring module, described serving BS platform is connected by communication network with between on-site terminal platform, described on-site terminal platform is connected with photovoltaic plant operation monitoring modular electrical, described on-site terminal platform at least one, and each on-site terminal platform is all only connected with a photovoltaic plant operation monitoring module electrical equipment, described photovoltaic plant operation monitoring module and photo-voltaic power generation station electrical connection。Although on-site terminal platform is connected by communication by such scheme by the network equipment, but owing to transmission delay, each intelligent cell are likely to the reasons such as repeated acquisition data, such scheme cannot be carried out data sharing, it is difficult to data are carried out unified analysis, utilization, interoperability between each device is also poor, worse with the interoperability of the dispatching patcher in tradition power station and data acquisition monitoring system。
2) point two classes in terms of function aspects, one is with Monitoring and Controlling for master device, and two is the device based on relay protection。If having taken into account the substantial amounts of remote measurement of photovoltaic plant, remote signalling and distant control function, the big heavy discount of performance indications of protection；If emphasizing defencive function, Monitoring and Controlling function can only be miscellaneous function。Trace it to its cause and be actually the contradiction that big data quantity is required by protection by the requirement of real-time and monitoring。Therefore, conventional way is at least to buy the equipment being respectively provided with monitoring and defencive function, but this mode not only cost performance is extremely low, bigger have a problem in that between plurality of devices Data duplication sampling, data syn-chronization, the problems such as data exchange。
Therefore; how photovoltaic plant is carried out unified monitoring, control and protection, how to make equipment have normal service life in photovoltaic plant Intelligent Process; how to make equipment have superior cost performance, how to improve the economic benefit of photovoltaic power generation equipment or system, how make photovoltaic plant more intelligent, become the target of emphasis that those skilled in the art study all the time and pursuit。
Summary of the invention
For overcoming existing photo-voltaic power generation station monitoring device monitoring defencive function to separate, Data duplication sampling and the defect such as utilization rate is low, cannot realize data syn-chronization shares, the cost performance of the function singleness of monitoring device, many complete equipments is low; the invention discloses a kind of photovoltaic power station monitoring system, there is the function integrating protection, monitoring and controlling。
For achieving the above object, the invention discloses a kind of photovoltaic power station monitoring system, this system includes being installed on the monitor terminal that photo-voltaic power generation station is on-the-spot, monitor terminal has bus and the analog signal input card being connected respectively, On-off signal card, on-off output card, first processor, the second processor with bus, and on-off output card is connected with the chopper at transformator two ends；Monitor terminal is wiredly and/or wirelessly connected with computer。
The present invention integrates defencive function and control function, by collection, calculating, judgement and the execution of the special complete paired data of processor。The present invention innovatively gathers data by three levels, the direct acquisition process of signal and digitized, the collection connected by serial ports, accesses Third party system by mutual machine。Long-distance management device can access multiple site intelligent terminal, and respectively every monitor terminal coverage is taken remote measurement, remote signalling, remote control and protection, thus realizing the omnibearing monitoring of photovoltaic plant and protection。
Further, this system also includes the storage card that is connected with bus。There is in storage card storage chip, data cached, the first processor for storing data on systematic parameter and configuration information, data/address bus, first processor and the exchange of the second processor data process after data, the second processor process after data。
Further, analog signal input card is connected with the current transformer at transformator two ends, voltage transformer and temperature sensor respectively。
Further, On-off signal card is connected with the sensor of transformer body, and sensor includes in pressure transducer, fuel level sensor, firedamp sensor, temperature sensor at least one, obtains corresponding switching value。
Further, this system includes the serial port expanding module being connected with the second processor, and serial port expanding module is at least one with inverter, header box, ammeter to be connected, and reads the data of relevant device。
Further, this system includes the human-computer interaction device connected by RS232 serial ports and the second processor, and human-computer interaction device has human-computer interaction interface。
Further, this system includes the communication exchange device being connected with the second processor, and communication exchange device is at least one with long-distance management device, Third party system to be connected。
Another goal of the invention of the present invention is in that to provide a kind of photo-voltaic power generation station monitoring method, comprises the steps,
S1: controlling monitor terminal and gather data: On-off signal card gathers switching value data, analog signal input card gathers analog data, switching value data and analog data and transmits to bus；
S2: first processor and the second processor obtain the data in bus simultaneously:
First processor passes through bus read switch amount data, when switching value data value is " 1 ", by on-off output card output protection order, and is stored to storage card by this event information；First processor reads analog data by bus, by calculating, analyzing, it may be judged whether output trip signal, and is stored to storage card by this event information；
Second processor is read analog data by bus, is read data by serial port expanding module and read the event information in storage card, calculates power, power factor, frequency, electric flux, power quality data according to the content read；
Result after the content read, calculating is sent to human-computer interaction device and communication exchange device by the S3: the second processor, and above-mentioned data are forwarded to long-distance management device by communication exchange device equipment。
Further, switching value data includes temperature of oil in transformer, oil level, pressure relief valve's state, Buchholz relay state, circuit-breaker status, fuse state；
Guarded command includes sending trip signal to chopper, sending alert command；
Analog data includes the electric current of transformator both sides, voltage；
Judge that the condition of tripping operation includes at least one in overcurrent protection, overvoltage protection, zero-sequence current protection situation by analog data；
Event information includes the original sampling data after in before shielded device information, tripping operation or alarm cause, guard time, fault。
Further, control monitor terminal by mode locally or remotely, after the second processor receives locally or remotely order, perform locally or remotely to order；Locally or remotely order includes parameter setting command, on-off control order, the inquiry of historical data, historical data derivation；Second processor obtains the data of Third party system by communication exchange device。
The invention have the benefit that the present invention innovatively adopts dual processor, the two is simultaneously to the data acquisition in bus, data are carried out unified analysis, utilization, meet the demand to real-time property, realize data sharing, avoid Data duplication to utilize, maintain concordance and the availability of data；Dual processor is each responsible for protection and monitoring function, completes the collection of data, calculating and judgement, it is achieved to the monitoring of photo-voltaic power generation station, protection and control。
Accompanying drawing explanation
Fig. 1 is the structural representation of monitor terminal。
Fig. 2 is the workflow diagram of monitoring method。
Fig. 3 is that schematic diagram disposed by photo-voltaic power generation station field apparatus。
In figure,
1, electrical network；2, transformator；3, communication lightning-protection power distribution cabinet；4, inverter；5, DC lightning prevention switch board；6, header box；7, photovoltaic module；8, long-distance management device；9, monitor terminal；10, ammeter；11, Third party system。
Detailed description of the invention
Detailed explanation and explanation is carried out below in conjunction with the Figure of description monitoring system to the present invention and monitoring method。
The invention discloses a kind of photovoltaic power station monitoring system, it is adaptable to distributed photovoltaic power generation station, centralized photo-voltaic power generation station, be furnished with the photo-voltaic power generation station of booster transformer 2, be not furnished with the photo-voltaic power generation station etc. of booster transformer 2。Schematic diagram disposed by photo-voltaic power generation station field apparatus as shown in Figure 1,3, after multiple photovoltaic modulies 7 convert light energy into electric energy, collected by header box 6, electric energy is being sent to DC lightning prevention switch board 5 by multiple header boxs 6, DC lightning prevention switch board 5 is changed by inverter 4, from direct current, electric energy is transformed into exchange, and converging to communication lightning-protection power distribution cabinet 3, the electric energy after convergence is by delivering to electrical network 1 after transformator 2 boosting, and transformator 2 can adopt photovoltaic box type transformer。
As shown in Figure 1, 2, 3, photovoltaic power station monitoring system includes being installed on the monitor terminal 9 that photo-voltaic power generation station is on-the-spot, monitor terminal 9 has bus and the analog signal input card being connected respectively, On-off signal card, on-off output card, first processor, the second processor with bus, on-off output card is connected with the chopper at transformator two ends, control the closed and disconnected of chopper, chopper is located at high voltage side of transformer and low-pressure side, the said equipment can by the same power supply of power supply on the board of monitor terminal 9 place, it is possible to individually power；Monitor terminal 9 is wiredly and/or wirelessly connected with computer, the mode of wired connection can be optical fiber ring network, wireless connections mode can be wireless telecommunication system, computer is mountable to photovoltaic plant booster stations。This system also includes the storage card being connected with bus, there is in storage card storage chip, data cached, the first processor for storing data on systematic parameter and configuration information, data/address bus, first processor and the exchange of the second processor data process after data, the second processor process after data；From memory card architecture, the storage card of the present invention can provide structure mounting groove, data channel, interface etc. for other cards, and storage card can be selected for Compact Flash。Analog signal input card is connected with the current transformer at transformator two ends, voltage transformer and temperature sensor respectively。On-off signal card is connected with the sensor in transformator, sensor includes in pressure transducer, fuel level sensor, firedamp sensor, temperature sensor at least one, in the present embodiment, pressure transducer is pressure relief valve's sensor, fuel level sensor includes oil level and crosses low sensor, the too high sensor of oil level, firedamp sensor includes light firedamp sensor, grave gas sensor, and temperature sensor is oil temperature sensor, reaches to measure the effect of corresponding on-off model；And analog signal input card measures the electric current of monitoring for protection point, voltage signal, such as, can directly measuring electric current and the voltage of photovoltaic plant booster stations low-pressure side, analog signal input card measures on high-tension side electric current and voltage by transformer。The photovoltaic power station monitoring system of the present invention also includes the serial port expanding module being connected with the second processor, and serial port expanding module is at least one with inverter, header box, ammeter 10 to be connected。In the present embodiment, serial port expanding module can have 8 serial ports, Modbus protocol communication is adopted to communicate with other equipment, serial port expanding module is connected by RS485 serial ports with the inverter of photovoltaic plant, read array voltage belonging to this inverter, electric current, power, grid line voltage, phase current, phase power factor, mains frequency, grid-connected active power, reactive power, apparent energy, the day operation time, daily generation, annual electricity generating capacity, system adds up generating dutation, inverter state, alarm failure information, DC input voitage, electric current, input power, inverter efficiency, inverter cabinet temperature, IGBT temperature, reactor temperature etc.；Serial port expanding module is connected by RS485 serial ports with the header box of photovoltaic plant, reads each branch current of monitored header box, voltage, power, on off state, current status, crosses stream and electric current is reversely reported to the police, warnings of total fuse, current imbalance alarm, header box temperature, collect voltage, general power, add up daily generation etc.；Serial port expanding module is connected with the ammeter 10 of photovoltaic plant, measure photovoltaic plant real-time power, daily generation, the moon generated energy and the accumulative total of generating electricity。
The analog signal input card of the present invention, On-off signal card, serial port expanding module obtain initial data and calculate data, and these data read for first processor and the second processor。Especially for analog signal input card and On-off signal card, the data of these two pieces of input card collections are shared by first processor and the second processor, it is achieved the defencive function of first processor, the second processor control function。For analog signal input card, light-coupled isolation, signal condition, A/D inside it, can be adopted to be converted into digital signal and process；For On-off signal card, can passing through light-coupled isolation, hardware filtering process, bus can adopt isa bus。
The photovoltaic power station monitoring system of the present invention includes human-computer interaction device, human-computer interaction device is connected by RS232 serial ports and the second processor both-way communication, human-computer interaction device has human-computer interaction interface, and operator obtains the information within the second processor by human-computer interaction device and issues order to the second processor。This system includes the communication exchange device being connected with the second processor, communication exchange device is by Ethernet and long-distance management device 8, at least one connection in Third party system 11, communication exchange device can carry out two-way wired or wireless telecommunications with long-distance management device 8, long-distance management device 8 can be remote computer or server, single telecommunication equipment can or wireless connections wired with the control terminal at multiple scenes, offer realizes remote status and shows, data store, data analysis, remote control, parameter is arranged, control terminal program upgrade function, realize store historical data for diagnosis, prediction photo-voltaic power generation station is dynamic, concrete communications protocol can adopt IEC60870-5-104, IEC60870-5-103, IEC61850 etc., Third party system 11 can be video detection system, IP telephony system, weather monitoring system etc.。
The photovoltaic power station monitoring system of the present invention by three level collections or receive photovoltaic data: the first level be monitor terminal 9 gather in photo-voltaic power generation station switching value data, analog data, be then digitized and analytical calculation；Second level is the data being received other disposable apparatus by serial port expanding module, such as inverter, header box, intelligent electric meter 10 data, then these data is resolved, calculates and is analyzed；Third level is to be connected with Third party system 11 by communication exchange device, obtains and receives third-party data, such as data such as Video Detection, IP phone, weather monitorings, then carries out intellectual analysis and process。
As shown in Figure 2,3, the invention discloses a kind of photo-voltaic power generation station monitoring method, comprise the steps,
S1: controlling monitor terminal 9 and gather data: On-off signal card gathers switching value data, analog signal input card gathers analog data, switching value data and analog data and transmits to bus；Switching value data includes temperature of oil in transformer, oil level, pressure relief valve's state, Buchholz relay state, circuit-breaker status, fuse state, and analog data includes the electric current of transformator both sides, voltage。
S2: first processor and the second processor obtain the data in bus simultaneously: first processor passes through bus read switch amount data, when switching value data value is " 1 ", by on-off output card output protection order, guarded command includes sending trip signal to chopper, send alert command, and this event information is stored to storage card, as excessive in pressure relief valve's pressure, the gas value of grave gas relay test is excessive, oil temperature is in superhigh temperature state, low-pressure side circuit breaker trip order is sent by on-off output card, and element will be protected, time is stored in storage card, as light Buchholz relay state or oil temperature are in overtemperature state, then send alert command by on-off output card, and by alarm cause, time stores to storage card；First processor reads the calculating of analog data by bus, analyze, judge whether output trip signal, and this event information is stored to storage card, by analog data being judged the condition of tripping operation includes overcurrent protection, overvoltage protection, at least one in zero-sequence current protection situation, if meeting first processor protection entry condition, namely trip condition is met, then send trip signal by on-off output card, disconnect the chopper of step down side, and by trip reason, before time and fault, during fault, fault post-sampling original data record is in storage card；Second processor is read analog data by bus, is read data by serial port expanding module and read the event information in storage card, power, power factor, frequency, electric flux, power quality data is calculated according to the content read, specifically, inverter, header box or intelligent electric meter 10 data are gathered by serial port expanding module, according to related protocol, data being resolved, calculate, the second processor reads the fault on storage card and alarm data。
Result after the content read, calculating is sent to human-computer interaction device and communication exchange device by the S3: the second processor, and above-mentioned data are forwarded to long-distance management device 8 by communication exchange device equipment。
Event information includes the original sampling data after in before shielded device information, tripping operation or alarm cause, guard time, fault。Control monitor terminal 9 by mode locally or remotely, after the second processor receives locally or remotely order, perform locally or remotely to order；Locally or remotely order includes parameter setting command, on-off control order, the inquiry of historical data, historical data derivation, long-distance management device 8 transmitting control commands can be passed through, disconnect or close the chopper that photo-voltaic power generation station is on-the-spot, resetting or revise systematic parameter, upgrading software system etc.；Second processor obtains the data of Third party system 11 by communication exchange device。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and simple modifications etc. made in flesh and blood of the present invention, should be included within protection scope of the present invention。
Claims (10)
1. a photovoltaic power station monitoring system, it is characterized in that: this system includes being installed on the monitor terminal that photo-voltaic power generation station is on-the-spot, monitor terminal has bus and the analog signal input card being connected respectively, On-off signal card, on-off output card, first processor, the second processor with bus, and on-off output card is connected with the chopper at transformator two ends；Monitor terminal is wiredly and/or wirelessly connected with computer。
2. photovoltaic power station monitoring system according to claim 1, it is characterised in that: this system also includes the storage card being connected with bus。
3. photovoltaic power station monitoring system according to claim 2, it is characterised in that: analog signal input card is connected with the current transformer at transformator two ends, voltage transformer and temperature sensor respectively。
4. the photovoltaic power station monitoring system according to Claims 2 or 3, it is characterised in that: On-off signal card is connected with the sensor of transformer body, and sensor includes in pressure transducer, fuel level sensor, firedamp sensor, temperature sensor at least one。
5. photovoltaic power station monitoring system according to claim 4, it is characterised in that: this system includes the serial port expanding module being connected with the second processor, and serial port expanding module is at least one with inverter, header box, ammeter to be connected。
6. photovoltaic power station monitoring system according to claim 5, it is characterised in that: this system includes the human-computer interaction device connected by RS232 serial ports and the second processor, and human-computer interaction device has human-computer interaction interface。
7. photovoltaic power station monitoring system according to claim 6, it is characterised in that: this system includes the communication exchange device being connected with the second processor, and communication exchange device is at least one with long-distance management device, Third party system to be connected。
8. a photo-voltaic power generation station monitoring method, it is characterised in that: comprise the steps,
S1: controlling monitor terminal and gather data: On-off signal card gathers switching value data, analog signal input card gathers analog data, switching value data and analog data and transmits to bus；
S2: first processor and the second processor obtain the data in bus simultaneously:
First processor passes through bus read switch amount data, when switching value data value is " 1 ", by on-off output card output protection order, and is stored to storage card by this event information；First processor reads analog data by bus and judges whether output trip signal, and is stored to storage card by this event information；
Second processor is read analog data by bus, is read data by serial port expanding module and read the event information in storage card, calculates power, power factor, frequency, electric flux, power quality data according to the content read；
Result after the content read, calculating is sent to human-computer interaction device and communication exchange device by the S3: the second processor, and above-mentioned data are forwarded to long-distance management device by communication exchange device equipment。
9. photo-voltaic power generation station according to claim 8 monitoring method, it is characterised in that:
Switching value data includes temperature of oil in transformer, oil level, pressure relief valve's state, Buchholz relay state, circuit-breaker status, fuse state；
Guarded command includes sending trip signal to chopper, sending alert command；
Analog data includes the electric current of transformator both sides, voltage；
Judge that the condition of tripping operation includes at least one in overcurrent protection, overvoltage protection, zero-sequence current protection situation by analog data；
Event information includes the original sampling data after in before shielded device information, tripping operation or alarm cause, guard time, fault。
10. photo-voltaic power generation station monitoring method according to claim 8 or claim 9, it is characterised in that: control monitor terminal by mode locally or remotely, after the second processor receives locally or remotely order, perform locally or remotely to order；Locally or remotely order includes parameter setting command, on-off control order, the inquiry of historical data, historical data derivation；Second processor obtains the data of Third party system by communication exchange device。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251746A (en) * | 2016-08-22 | 2016-12-21 | 朱凌 | A kind of portable light overhead utility analog meter operation control system |
| CN106253846A (en) * | 2016-08-24 | 2016-12-21 | 青海天创新能源科技有限公司 | A kind of large-scale ground photovoltaic power station power generation performance filed detection system |
| CN106648924A (en) * | 2016-11-04 | 2017-05-10 | 南京丰道电力科技有限公司 | Device function module self-description system |
| CN108270286A (en) * | 2016-12-30 | 2018-07-10 | 孙麓轩 | Low-voltage distribution system and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957208A (en) * | 2012-09-19 | 2013-03-06 | 北开电气集团有限公司 | Intelligent monitoring device of power distribution transformer and control method thereof |
| CN103138635A (en) * | 2011-11-27 | 2013-06-05 | 陕西银星科技有限公司 | Solar photovoltaic power generation intelligent monitoring system |
| US20140142873A1 (en) * | 2012-11-16 | 2014-05-22 | Keith W. Kawate | Systems and methods of discriminating dc arcs and load switching noise |
| US20140354303A1 (en) * | 2013-05-30 | 2014-12-04 | Enphase Energy, Inc. | Method and apparatus for deriving current for control in a resonant power converter |
| CN104578413A (en) * | 2014-12-25 | 2015-04-29 | 海南泰新电气成套设备工程有限公司 | Solar photovoltaic electric field box-type substation monitoring system |
| CN205622598U (en) * | 2016-04-15 | 2016-10-05 | 王保荣 | Monitoring system for photovoltaic power station |
-
2016
- 2016-04-15 CN CN201610236139.5A patent/CN105703708A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138635A (en) * | 2011-11-27 | 2013-06-05 | 陕西银星科技有限公司 | Solar photovoltaic power generation intelligent monitoring system |
| CN102957208A (en) * | 2012-09-19 | 2013-03-06 | 北开电气集团有限公司 | Intelligent monitoring device of power distribution transformer and control method thereof |
| US20140142873A1 (en) * | 2012-11-16 | 2014-05-22 | Keith W. Kawate | Systems and methods of discriminating dc arcs and load switching noise |
| US20140354303A1 (en) * | 2013-05-30 | 2014-12-04 | Enphase Energy, Inc. | Method and apparatus for deriving current for control in a resonant power converter |
| CN104578413A (en) * | 2014-12-25 | 2015-04-29 | 海南泰新电气成套设备工程有限公司 | Solar photovoltaic electric field box-type substation monitoring system |
| CN205622598U (en) * | 2016-04-15 | 2016-10-05 | 王保荣 | Monitoring system for photovoltaic power station |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251746A (en) * | 2016-08-22 | 2016-12-21 | 朱凌 | A kind of portable light overhead utility analog meter operation control system |
| CN106251746B (en) * | 2016-08-22 | 2022-04-29 | 杭州澳宇自动化设备有限公司 | Portable photovoltaic power plant analog instrument operation control system |
| CN106253846A (en) * | 2016-08-24 | 2016-12-21 | 青海天创新能源科技有限公司 | A kind of large-scale ground photovoltaic power station power generation performance filed detection system |
| CN106648924A (en) * | 2016-11-04 | 2017-05-10 | 南京丰道电力科技有限公司 | Device function module self-description system |
| CN106648924B (en) * | 2016-11-04 | 2020-09-11 | 南京丰道电力科技有限公司 | Self-description system of device function module |
| CN108270286A (en) * | 2016-12-30 | 2018-07-10 | 孙麓轩 | Low-voltage distribution system and control method |
| CN108270286B (en) * | 2016-12-30 | 2024-01-23 | 孙麓轩 | Low-voltage power distribution system and control method |
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