CN104201783B - The diagnostic method of distributed generation system and communication performance thereof - Google Patents
The diagnostic method of distributed generation system and communication performance thereof Download PDFInfo
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- CN104201783B CN104201783B CN201410468851.9A CN201410468851A CN104201783B CN 104201783 B CN104201783 B CN 104201783B CN 201410468851 A CN201410468851 A CN 201410468851A CN 104201783 B CN104201783 B CN 104201783B
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- invertor
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- management device
- generation system
- distributed generation
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The present invention provides the diagnostic method of a kind of distributed generation system and communication performance thereof, and this distributed generation system comprises: multiple input power; Multiple stage invertor, connection corresponding to multiple input power, then by grid-connected bus, electrical network is connected with exchanging respectively; Management device, communicates with multiple stage invertor respectively; Remote terminal, communicates with management device; Wherein, manage that device comprises data corresponding module respectively with every platform invertor, control command communicate, and module and signal diagnose the module that communicates; Data corresponding module is used for the data gathering of multiple stage invertor and sends remote terminal; Control command communication module is used for the control command of remote terminal is sent to invertor, it is achieved to the control of invertor; The communication performance that signal diagnosis communication module is used between diagnostic manager and invertor. The present invention enables user the communication performance (especially managing device) in power generation system be diagnosed fast, Timeliness coverage communication issue.
Description
Technical field
The present invention relates to the communication technical field of distributed generation system, specifically, the present invention relates to the diagnostic method of a kind of distributed generation system and communication performance thereof.
Background technology
In distributed generation system, generator unit and management device connect transmission data, and manage device and internet connection, transfer data to database, thus provide monitoring account to use, it is achieved remote monitoring.
Fig. 1 is the simple module schematic diagram of a distributed generation system of the prior art. As shown in Figure 1, multiple input power 101 is connected with multiple stage invertor 102 respectively, and multiple stage invertor 102 is all connected with exchange electrical network 103, and management device 104 communicates with multiple stage invertor 102, transmits data and command signal. Management device 104 communicates with remote terminal 105 again, carries out the transmission etc. of data storage, display and order.
But the management device in existing distributed generation system does not all comprise, with remote terminal, the diagnostic functions that communicates, user is caused its communication performance to be diagnosed fast, Timeliness coverage communication issue.
Summary of the invention
Technical problem to be solved by this invention is to provide the diagnostic method of a kind of distributed generation system and communication performance thereof, it is possible to the communication performance (especially managing device) in power generation system is diagnosed by user fast, Timeliness coverage communication issue.
For solving the problems of the technologies described above, the present invention provides a kind of distributed generation system, comprising:
Multiple input power;
Multiple stage invertor, connection corresponding to multiple described input power, then by grid-connected bus, electrical network is connected with exchanging respectively;
Management device, communicates with invertor described in multiple stage respectively; And
Remote terminal, communicates with described management device;
Wherein, described management device comprises data corresponding module respectively with invertor described in every platform, control command module and the signal diagnosis that communicates communicates module;
Described data corresponding module is used for the data gathering of invertor described in multiple stage and sends described remote terminal; Described control command communication module is used for the control command of described remote terminal is sent to described invertor, it is achieved to the control of described invertor; Described signal diagnosis communication module is for diagnosing the communication performance between described management device and described invertor.
Can selection of land, described remote terminal comprises:
Data communication mode selects module, for selecting the data communication mode of described distributed generation system;
Master mode selects module, for selecting the master mode of described distributed generation system; And
Communication diagnostic mode selects module, is connected with the described signal of described management device diagnosis communication module, for selecting the communication diagnostic mode of described distributed generation system.
Can selection of land, the signalling methods between described invertor and described management device is wired or wireless.
Can selection of land, the wired signalling methods between described invertor and described management device comprises: power line and RS485.
Can selection of land, the wireless signalling methods between described invertor and described management device comprises: Zigbee, Z-wave, WiFi and GPRS.
For solving the problems of the technologies described above, the present invention also provides the diagnostic method of the communication performance of the distributed generation system described in a kind of above-mentioned arbitrary item, comprises step:
A. by remote terminal selected communication diagnostic mode;
B. described distributed generation system is run according to described communication diagnostic mode;
C. display and the number managing the good invertor that communicates between device;
D. number by described invertor total in the number of the good described invertor of communication and described distributed generation system contrasts;
Whether the number of the number of good described invertor and total described invertor of E. judging to communicate is identical; If not, then enter next step F, if then directly entering step I;
F. device numbering and the strength of signal of the not good described invertor that communicates between described management device is shown;
G. judge that communication issue causes by equipment failure, or Rig up error causes;
H. manage to repair described communication issue, then return to above-mentioned steps B;
I. diagnosed.
Can selection of land, the signalling methods between described invertor and described management device is wired or wireless.
Can selection of land, the wired signalling methods between described invertor and described management device comprises: power line and RS485.
Can selection of land, the wireless signalling methods between described invertor and described management device comprises: Zigbee, Z-wave, WiFi and GPRS.
Compared with prior art, the present invention has the following advantages:
The data of distributed photovoltaic system can be collected through communication, enters management device and remote terminal. The present invention adds, in management device and the remote terminal of distributed generation system, the diagnostic functions that communicates, can select to enter communication diagnostic mode, communication performance between invertor and management device is diagnosed by user rapidly, and Timeliness coverage communication issue, ensures the quality of communication.
The present invention is by adopting special communication diagnostic mode, it is possible to complete diagnosis very rapidly, eliminates the impact on systems generate electricity.
Accompanying drawing explanation
The above and other features of the present invention, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the simple module schematic diagram of a distributed generation system of the prior art;
Fig. 2 is the simple module schematic diagram of the distributed generation system of one embodiment of the invention;
Fig. 3 is the detailed module diagram (do not illustrate input power and exchange electrical network) of the distributed generation system of one embodiment of the invention;
Fig. 4 is the diagnostic method schema of the communication performance of the distributed generation system of one embodiment of the invention;
Fig. 5 is the simple module change schematic diagram of distributed generation system embodiment illustrated in fig. 2.
Embodiment
Below in conjunction with specific embodiment and Figure of description, the invention will be further described; set forth more details in the following description so that fully understanding the present invention; but the present invention obviously can implement with multiple this alternate manner described that is different from; those skilled in the art can do similar popularization, deduction when not running counter to intension of the present invention according to practical situations, therefore should with content constraints protection scope of the present invention of this specific embodiment.
The embodiment of distributed generation system
Fig. 2 is the simple module schematic diagram of the distributed generation system of one embodiment of the invention; Fig. 3 is the detailed module diagram (do not illustrate input power and exchange electrical network) of the distributed generation system of one embodiment of the invention. It is noted that these and follow-up other accompanying drawing all only exemplarily, it is not draw according to the condition of equal proportion, and should not be construed as limiting in this, as to the protection domain of the actual requirement of the present invention.
As shown in Figure 2, this distributed generation system mainly comprises multiple input power 201, multiple stage invertor 202, management device 204 and remote terminal 205. Wherein, multiple stage invertor 202 connection corresponding to multiple input power 201, then by grid-connected bus, electrical network 203 is connected with exchanging respectively. Management device 204 communicates with multiple stage invertor 202 respectively. Remote terminal 205 communicates with management device 204.
But, in the present embodiment, management device 204 all adds, with in remote terminal 205, the diagnostic functions that communicates. Specifically, as shown in Figure 3, manage that device 204 comprises data corresponding module 301 respectively with every platform invertor 202, control command communicate, and module 302 and signal diagnose the module 303 that communicates. Wherein, data corresponding module 301 for by the data gathering of multiple stage invertor 202 and send remote terminal 205; Control command communication module 302 is for being sent to invertor 202 by the control command of remote terminal 205, it is achieved to the control of invertor 202; Signal diagnosis communication module 303, for the communication performance between diagnostic manager 204 and invertor 202, does not carry out data transmission, can realize so at a high speed and diagnose accurately.
Please continuing as shown in Figure 3, this remote terminal 205 can comprise: data communication mode selects module 305, master mode to select module 306 and the diagnostic mode selection module 307 that communicates. Wherein, data communication mode selects module 305 for selecting the data communication mode of distributed generation system; Master mode selects module 306 for selecting the master mode of distributed generation system; Communication diagnostic mode selects module 307 to be connected with the signal diagnosis communication module 303 of management device 204, for selecting the communication diagnostic mode of distributed generation system.
In the present embodiment, the signalling methods between this invertor 202 and this management device 204 can be wired, such as power line (Powerline) and RS485 etc.; Can also be wireless, such as Zigbee, Z-wave, WiFi and GPRS etc.
The diagnostic method embodiment of the communication performance of distributed generation system
Fig. 4 is the diagnostic method schema of the communication performance of the distributed generation system of one embodiment of the invention. The present embodiment continues to use element numbers and the part content of previous embodiment, wherein adopts identical label to represent identical or approximate element, and optionally eliminates the explanation of constructed content. Explanation about omission part can refer to previous embodiment, and it is no longer repeated for the present embodiment.
As shown in Figure 4, the diagnostic method of the communication performance of this distributed generation system mainly comprises:
Perform step S401, by the selected communication diagnostic mode of remote terminal 205.
Perform step S402, run distributed generation system according to communication diagnostic mode.
Perform step S403, show the number of the invertor 202 communicating good between management device 204.
Perform step S404, the number of invertor 202 total in the number of invertor 202 good for communication and distributed generation system is contrasted.
Perform step S405, judge that whether the number of the number of the good invertor 202 of communication and total invertor 202 is identical. If not, then enter next step S406, if then directly entering step S409.
Perform step S406, show device numbering and the strength of signal of the invertor 202 communicating not good between management device 204.
Perform step S407, judge that communication issue causes by equipment failure, or Rig up error causes.
Perform step S408, manage to repair communication issue, then return to above-mentioned steps S402.
Performing step S409, diagnosis completes.
In the present embodiment, the signalling methods between this invertor 202 and this management device 204 can be wired, such as power line (Powerline) and RS485 etc.; Can also be wireless, such as Zigbee, Z-wave, WiFi and GPRS etc.
In addition, Fig. 5 is the simple module change schematic diagram of distributed generation system embodiment illustrated in fig. 2. As shown in Figure 5, in the present invention, the invertor 202 in former Fig. 2 can also be replaced as the equipment that other possess similar communication function, such as optimizer 206. So just can realize the communication performance between optimizer and management device being diagnosed fast, Timeliness coverage communication issue.
The data of distributed photovoltaic system can be collected through communication, enters management device and remote terminal. The present invention adds, in management device and the remote terminal of distributed generation system, the diagnostic functions that communicates, can select to enter communication diagnostic mode, communication performance between invertor and management device is diagnosed by user rapidly, and Timeliness coverage communication issue, ensures the quality of communication.
The present invention is by adopting special communication diagnostic mode, it is possible to complete diagnosis very rapidly, eliminates the impact on systems generate electricity.
Although the present invention is with better embodiment openly as above, but it is not that any those skilled in the art without departing from the spirit and scope of the present invention, can make possible variation and amendment for limiting the present invention. Therefore, every content not departing from technical solution of the present invention, any amendment, equivalent variations and the modification above embodiment done according to the technical spirit of the present invention, all falls within the protection domain that the claims in the present invention define.
Claims (8)
1. a distributed generation system, comprising:
Multiple input power (201);
Multiple stage invertor (202), connection corresponding to multiple described input power (201), then by grid-connected bus, electrical network (203) is connected with exchanging respectively;
Management device (204), communicates with invertor described in multiple stage (202) respectively; And
Remote terminal (205), communicates with described management device (204);
Wherein, described management device (204) comprises data corresponding module (301) respectively with invertor (202) described in every platform, control command module (302) and the signal diagnosis that communicates communicates module (303);
Described data corresponding module (301) for by the data gathering of invertor described in multiple stage (202) and send described remote terminal (205); Described control command communication module (302) is for being sent to described invertor (202) by the control command of described remote terminal (205), it is achieved to the control of described invertor (202); Described signal diagnosis communication module (303) is for diagnosing the communication performance between described management device (204) and described invertor (202);
Wherein, described remote terminal (205) comprising:
Data communication mode selects module (305), for selecting the data communication mode of described distributed generation system;
Master mode selects module (306), for selecting the master mode of described distributed generation system; And
Communication diagnostic mode selects module (307), is connected with the described signal of described management device (204) diagnosis communication module (303), for selecting the communication diagnostic mode of described distributed generation system.
2. distributed generation system according to claim 1, it is characterised in that, the signalling methods between described invertor (202) and described management device (204) is wired or wireless.
3. distributed generation system according to claim 2, it is characterised in that, the wired signalling methods between described invertor (202) and described management device (204) comprises power line and RS485.
4. distributed generation system according to claim 2, it is characterised in that, the wireless signalling methods between described invertor (202) and described management device (204) comprises Zigbee, Z-wave, WiFi and GPRS.
5. a diagnostic method for the communication performance of distributed generation system according to any one of the claims 1 to 4, comprises step:
A. by remote terminal (205) selected communication diagnostic mode;
B. described distributed generation system is run according to described communication diagnostic mode;
The number of the invertor (202) C. communicating good between display with management device (204);
D. number by described invertor (202) total in the number of the good described invertor (202) of communication and described distributed generation system contrasts;
Whether the number of the number of good described invertor (202) and total described invertor (202) of E. judging to communicate is identical; If not, then enter next step F, if then directly entering step I;
The device numbering of the described invertor (202) F. communicating not good between display and described management device (204) and strength of signal;
G. judge that communication issue causes by equipment failure, or Rig up error causes;
H. manage to repair described communication issue, then return to above-mentioned steps B;
I. diagnosed.
6. the diagnostic method of communication performance according to claim 5, it is characterised in that, the signalling methods between described invertor (202) and described management device (204) is wired or wireless.
7. the diagnostic method of communication performance according to claim 6, it is characterised in that, the wired signalling methods between described invertor (202) and described management device (204) comprises power line and RS485.
8. the diagnostic method of communication performance according to claim 6, it is characterised in that, the wireless signalling methods between described invertor (202) and described management device (204) comprises Zigbee, Z-wave, WiFi and GPRS.
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| DE102004025924A1 (en) * | 2004-05-27 | 2005-12-22 | Siemens Ag | Solar inverter and photovoltaic system with several solar inverters |
| US7609158B2 (en) * | 2006-10-26 | 2009-10-27 | Cooper Technologies Company | Electrical power system control communications network |
| CN102437793B (en) * | 2011-10-21 | 2014-07-23 | 浙江昱能科技有限公司 | Distributed grid-connected solar energy photovoltaic system |
| CN202384835U (en) * | 2011-11-24 | 2012-08-15 | 苏州华领太阳能电力技术有限公司 | Monitoring system of distributed photovoltaic grid-connected power inverters |
| CN102496955B (en) * | 2011-11-24 | 2013-12-04 | 浙江昱能光伏科技集成有限公司 | Intelligent photovoltaic system and method for data detection and transmission |
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Denomination of invention: Distributed power generation system and communication performance diagnosing method thereof Effective date of registration: 20190402 Granted publication date: 20160601 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Zhejiang Yuneng Technology Co., Ltd. Registration number: 2019330000091 |
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