CN104734355A - Data collection device and method applicable to commercial photovoltaic inverter - Google Patents
Data collection device and method applicable to commercial photovoltaic inverter Download PDFInfo
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- CN104734355A CN104734355A CN201510113103.3A CN201510113103A CN104734355A CN 104734355 A CN104734355 A CN 104734355A CN 201510113103 A CN201510113103 A CN 201510113103A CN 104734355 A CN104734355 A CN 104734355A
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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
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention discloses a data collection device and method applicable to a commercial photovoltaic inverter. The data collection device comprises a micro controller basic configuration circuit module, a data collection module, a data storage module and an Ethernet communication module. According to the data collection method, on the basis of an embedded real-time operation system, data collection is carried out on the photovoltaic inverter through an RS485 bus interface Modbus protocol, collected data are stored to a Micro SD card after being processed by an STM32F107 chip, meanwhile, temporary files stored in the SD card are uploaded to a remote FTP server through a TCP/IP protocol, and local monitoring and remote monitoring of the photovoltaic inverter are achieved. The data collection device and method are diverse in function, stable in operation, applicable to the commercial photovoltaic inverter and capable of meeting various function requirements of clients.
Description
Technical field
The present invention relates to photovoltaic DC-to-AC converter monitoring field, particularly a kind of data acquisition unit and method being applicable to commercial style photovoltaic DC-to-AC converter.
Background technology
The energy is the important substance basis that the mankind depend on for existence, also be the important push agent of socio-economic development, but, along with the propelling of process of industrialization and the quick increase of world population, conventional energy resource shortage and problem of environmental pollution manifest day by day, the demand that cannot meet human social He improve the quality of living, for this reason, from the long-term goal of human development, developing green regenerative resource has been inexorable trend.
In recent years, people the research of the new energy fields such as wind energy, solar energy, biomass energy and nuclear energy and investment more and more, solar energy is as a kind of inexhaustible regenerative resource, because it is widely distributed, pollution-free and the feature such as aboundresources, obtain development and utilization widely especially.Solar power generation is divided into two kinds of forms, is photo-thermal power generation and photovoltaic generation respectively, and wherein photovoltaic generation is the main application form of solar power generation.Under the development upsurge of photovoltaic industry, various photovoltaic products occurs in succession, and photovoltaic DC-to-AC converter is in these photovoltaic products most important one.
The major function of photovoltaic DC-to-AC converter is that direct current power is changed into alternating electromotive force, but in practical engineering application, photovoltaic DC-to-AC converter not only should have superior electric energy conversion performance, also must configure the data acquisition unit of client's friendly, to realize the supervision to invertor operation major parameter and operation conditions.In recent years, along with the development of modern science and technology and the ripe gradually of embedded development technology, ARM microprocessor is more and more important in the status of industrial circle, and the stm32 series microprocessor wherein based on Cortex-M3 kernel is widely used in industrial monitoring system with its stable performance, reasonable prices and powerful Peripheral Interface function especially.This photovoltaic DC-to-AC converter data acquisition unit selects STM32F107 chip based on Cortex-M3 as core processor just, and by its abundant Peripheral Interface functional realiey the data acquisition of photovoltaic DC-to-AC converter data acquisition unit, data storing and monitoring function.
Communication performance is good, stable, the photovoltaic DC-to-AC converter data acquisition unit unit of friendly interface, greatly can improving the efficiency of management of photovoltaic plant, optimizing the performance of photovoltaic plant and providing reliable data supporting for analyzing the benefit of photovoltaic plant, significant to the application of the development and solar power generation that advance photovoltaic industry.
Summary of the invention
Main purpose of the present invention is, for above-mentioned deficiency of the prior art, a kind of data acquisition unit and the method that are applicable to commercial style photovoltaic DC-to-AC converter are provided, effectively can realize the data acquisition to photovoltaic DC-to-AC converter, data acquisition, local monitor and remote monitoring, reduce photovoltaic plant operating cost, there is very high cost performance, be very suitable for extensively promoting and using.
A kind of data acquisition unit being applicable to commercial style photovoltaic DC-to-AC converter, it comprises microcontroller circuit module, data acquisition module, data storage module and ethernet communication module, be configured with the functional interfaces such as RS485 bus, SD card (Secure Digital Memory Card) and Ethernet, described data acquisition module comprises RS485 interface, and microcontroller circuit module is connected with photovoltaic DC-to-AC converter control board by RS485 interface; Described data storage module comprises SD card storage module and EEPROM storage module; Wherein SD card storage module is for storing the data file of photovoltaic DC-to-AC converter, EEPROM storage module is used for storing the parameter of data acquisition unit and the correlated variables of photovoltaic DC-to-AC converter, data storage module is connected with microcontroller circuit module by SD card storage module, EEPROM, and ethernet communication module is connected with microcontroller circuit module by Ethernet interface.
Further, described microcontroller circuit module adopts the STM32F107 microcontroller chip based on ARM Cortex-M3 kernel, and configure power module, clock module and JTAG(Joint Test Action Group, joint test behavior tissue) debug i/f circuit module; Described power module directly adopts the direct voltage source of 5V to input as outside, and obtains stable 3.3V direct voltage, as supply power voltage by dropout voltage adjuster; Described clock module adopts the passive crystal oscillator of outside 8MHz to provide external clock reference for chip, and the outside 32.78KHz crystal oscillator adopting low speed is that real-time clock (RTC) provides clock source; Described JTAG debug i/f circuit module adopts the test protocol JTAG with international standard, major function has been download and the debugging of program.
Further, described ethernet communication module is connected with STM32F107 microcontroller chip by ethernet physical layer interface chip DP83848C, and is connected with external network by the RJ45 that model is HR911105A.
The above-mentioned acquisition method being applicable to the data acquisition unit of commercial style photovoltaic DC-to-AC converter: based on embedded real-time operating system, by RS485 bus interface Modbus agreement, data acquisition is carried out to photovoltaic DC-to-AC converter, image data is saved to Micro SD card after the process of STM32F107 chip, temporary file application TCP/IP(Transmission Control Protocol/Internet Protocol in SD card will be kept at simultaneously, transmission control protocol/Internet Protocol) agreement is uploaded to long-range ftp server, achieve the local monitor to photovoltaic DC-to-AC converter and remote monitoring.
Above-mentioned acquisition method comprises initialization, communicates with photovoltaic DC-to-AC converter control board, data storing and with host computer server communication; The parameter that described initialization comprises each component part of the data acquisition unit to photovoltaic DC-to-AC converter carries out initialization, configures and interface configuration comprising to RTC real-time clock, SD card; Described communication with photovoltaic DC-to-AC converter control board is referred to and to be communicated with photovoltaic DC-to-AC converter control board by Modbus agreement; Described data storing refers to the data received to be written in a file format in SD card and preserves; Data are sent to long-range ftp server by ICP/IP protocol by described referring to host computer server communication, realize the local monitor to photovoltaic DC-to-AC converter and remote monitoring.Comprise realize photovoltaic DC-to-AC converter data acquisition, data management, the display of internal WEB web data and the function such as remote server file transmission.
Compared to prior art, intelligence degree of the present invention is high, realizing on-the-spot display with on the basis controlled, can carry out centralization process and the remote transmission of data.The described data acquisition unit being applicable to commercial style photovoltaic DC-to-AC converter and method, based on embedded system, by field bus technique and ethernet technology, the data acquisition to multiple stage photovoltaic DC-to-AC converter, data storing, local monitor and remote data transmission can be realized; By having carried out detailed test and validation on 5KW photovoltaic DC-to-AC converter Prototyping Platform, result has shown that this photovoltaic DC-to-AC converter data acquisition unit has stronger practicality and reliability, can be applicable in actual light photovoltaic generating system.This data acquisition unit and methodological function variation, stable, be applicable to commercial style photovoltaic DC-to-AC converter, the several functions demand of client can be met.
Accompanying drawing explanation
Fig. 1 is a kind of data acquisition unit structural representation being applicable to commercial style photovoltaic DC-to-AC converter of the present invention.
Fig. 2 is a kind of a kind of example flow chart being applicable to the collecting method of commercial style photovoltaic DC-to-AC converter of the present invention.
Embodiment
Technical scheme of the present invention is described in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present invention intuitively, if have not specified part it is noted that following, be all that those skilled in the art can refer to existing techniques in realizing.
Fig. 1 is a kind of data acquisition unit general structure schematic diagram being applicable to commercial style photovoltaic DC-to-AC converter of the present invention.With reference to shown in Fig. 1, a kind of data acquisition unit and method being applicable to commercial style photovoltaic DC-to-AC converter, in hardware designs, comprise microcontroller circuit module, data acquisition module, data storage module and ethernet communication module four parts, being configured with the functional interfaces such as RS485 bus, SD card and Ethernet, is the bottom hardware basis meeting photovoltaic DC-to-AC converter monitoring function demand.
Microcontroller circuit module selects the STM32F107 microcontroller chip based on ARM Cortex-M3 kernel, this chip is produced by STMicw Electronics (ST) company, be aly integrate low in energy consumption, the interconnection type microcontroller chip of excellent performance and the advantage such as cost performance is high; Described microcontroller basic configuration circuit module comprises power circuit, clock circuit and JTAG debug i/f circuit; Described power circuit is directly connected with microcontroller chip by power interface; Described clock circuit adopts external RTC module to be directly connected with microcontroller chip; Described JTAG debugging interface is directly connected with microcontroller chip.
Select the RS485 bus interface based on Modbus agreement, this bus interface one side be directly connected with microcontroller, and a side is directly connected with photovoltaic DC-to-AC converter control board, to realize the communication between data acquisition unit and photovoltaic DC-to-AC converter.Data storage module comprises SD card storage module and EEPROM storage module; Wherein SD card module, EEPROM module are all directly connected with microcontroller.Described ethernet communication module adopts the RMII interface modes MAC built-in with STM32F107 microcontroller to control sublayer by ethernet physical layer interface chip DP83848C to carry out being connected and realize, and is connected with external network by the RJ45 that model is HR911105A.
In sum, the present invention has several functions, can realize carrying out data acquisition, data storing and communication to photovoltaic DC-to-AC converter, meets the multiple demand of user.
Fig. 2 is a kind of acquisition method flow chart being applicable to the data acquisition unit of commercial style photovoltaic DC-to-AC converter.The method based on embedded real-time operating system, application Modbus agreement and ICP/IP protocol, the collection achieving data with communicate, be effective ways photovoltaic DC-to-AC converter being carried out to Stateful Inspection.Data acquisition unit adopts based on Embedded real time operating system, realizes the functions such as the data acquisition of photovoltaic DC-to-AC converter Data Data collector, data management, the display of internal WEB web data and remote server file transmission.
Described data acquisition method comprises initialization, communicates with photovoltaic DC-to-AC converter control board, data storing and with the modules such as host computer server communication; Initialization module carries out initialization to the various piece on photovoltaic DC-to-AC converter data acquisition unit mainboard, comprising the initialization to modules such as RTC real-time clock, the configuration of SD card and GPIO mouths, with the function enabling modules play oneself under predetermined pattern; Communicated with photovoltaic DC-to-AC converter control board by Modbus agreement with photovoltaic DC-to-AC converter control board communication module; Data storage module is written to the data received in a file format in SD card and preserves; Data are sent to long-range ftp server by ICP/IP protocol by host computer server com-munication module, to ensure the realization of photovoltaic DC-to-AC converter remote monitoring.
The foregoing is only the preferred embodiments of the present invention; not thereby its protection range is limited; every equivalent structure transformation utilizing specification of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, is all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. one kind is applicable to the data acquisition unit of commercial style photovoltaic DC-to-AC converter, it is characterized in that: comprise microcontroller circuit module, data acquisition module, data storage module and ethernet communication module, be configured with the functional interfaces such as RS485 bus, SD card and Ethernet, described data acquisition module comprises RS485 interface, and microcontroller circuit module is connected with photovoltaic DC-to-AC converter control board by RS485 interface; Described data storage module comprises SD card storage module and EEPROM storage module; Wherein SD card storage module is for storing the data file of photovoltaic DC-to-AC converter, EEPROM storage module is used for storing the parameter of data acquisition unit and the correlated variables of photovoltaic DC-to-AC converter, data storage module is connected with microcontroller circuit module by SD card storage module, EEPROM, and ethernet communication module is connected with microcontroller circuit module by Ethernet interface.
2. the data acquisition unit being applicable to commercial style photovoltaic DC-to-AC converter according to claim 1, it is characterized in that: described microcontroller circuit module adopts the STM32F107 microcontroller chip based on ARM Cortex-M3 kernel, and configures power module, clock module and JTAG debug i/f circuit module; Described power module directly adopts the direct voltage source of 5V to input as outside, and obtains stable 3.3V direct voltage, as supply power voltage by dropout voltage adjuster; Described clock module adopts the passive crystal oscillator of outside 8MHz to provide external clock reference for chip, adopts the outside 32.78KHz crystal oscillator of low speed to provide clock source for real-time clock; Described JTAG debug i/f circuit module adopts the test protocol JTAG with international standard, major function has been download and the debugging of program.
3. the data acquisition unit being applicable to commercial style photovoltaic DC-to-AC converter according to claim 2, it is characterized in that: described ethernet communication module is connected with STM32F107 microcontroller chip by ethernet physical layer interface chip DP83848C, and be connected with external network by the RJ45 that model is HR911105A.
4. utilize the acquisition method being applicable to the data acquisition unit of commercial style photovoltaic DC-to-AC converter described in any one of claim 1 ~ 3, it is characterized in that: based on embedded real-time operating system, by RS485 bus interface Modbus agreement, data acquisition is carried out to photovoltaic DC-to-AC converter, image data is saved to Micro SD card after the process of STM32F107 chip, the temporary file application ICP/IP protocol be kept in SD card is uploaded to long-range ftp server simultaneously, achieves the local monitor to photovoltaic DC-to-AC converter and remote monitoring.
5. acquisition method according to claim 4, is characterized in that: comprise initialization, communicate with photovoltaic DC-to-AC converter control board, data storing and with host computer server communication; The parameter that described initialization comprises each component part of the data acquisition unit to photovoltaic DC-to-AC converter carries out initialization, configures and interface configuration comprising to RTC real-time clock, SD card; Described communication with photovoltaic DC-to-AC converter control board is referred to and to be communicated with photovoltaic DC-to-AC converter control board by Modbus agreement; Described data storing refers to the data received to be written in a file format in SD card and preserves; Data are sent to long-range ftp server by ICP/IP protocol by described referring to host computer server communication, realize the local monitor to photovoltaic DC-to-AC converter and remote monitoring.
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| CN201510113103.3A CN104734355A (en) | 2015-03-15 | 2015-03-15 | Data collection device and method applicable to commercial photovoltaic inverter |
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| CN201510113103.3A CN104734355A (en) | 2015-03-15 | 2015-03-15 | Data collection device and method applicable to commercial photovoltaic inverter |
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| CN106408917A (en) * | 2016-11-15 | 2017-02-15 | 东北师范大学 | STM32-based Plant growth factor wireless remote monitoring system |
| CN108427356A (en) * | 2018-06-04 | 2018-08-21 | 天合光能股份有限公司 | Intelligent photovoltaic data acquisition system of photovoltaic module and inverter |
| CN113872319A (en) * | 2021-08-19 | 2021-12-31 | 北京九州恒盛电力科技有限公司 | Power distribution room on-site monitoring system and method |
| CN114665509A (en) * | 2022-05-25 | 2022-06-24 | 赫里欧绿能建筑科技有限公司 | Discrete inverter system for power generation building materials and operation control method |
| CN114899949A (en) * | 2022-06-01 | 2022-08-12 | 深圳博浩远科技有限公司 | Data acquisition method and device suitable for commercial photovoltaic inverter |
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| CN113872319A (en) * | 2021-08-19 | 2021-12-31 | 北京九州恒盛电力科技有限公司 | Power distribution room on-site monitoring system and method |
| CN114665509A (en) * | 2022-05-25 | 2022-06-24 | 赫里欧绿能建筑科技有限公司 | Discrete inverter system for power generation building materials and operation control method |
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| CN114899949A (en) * | 2022-06-01 | 2022-08-12 | 深圳博浩远科技有限公司 | Data acquisition method and device suitable for commercial photovoltaic inverter |
| CN114899949B (en) * | 2022-06-01 | 2022-12-23 | 深圳博浩远科技有限公司 | Data acquisition method and device suitable for commercial photovoltaic inverter |
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Application publication date: 20150624 |