CN106681365A - Photovoltaic power station monitoring system - Google Patents
Photovoltaic power station monitoring system Download PDFInfo
- Publication number
- CN106681365A CN106681365A CN201510757042.4A CN201510757042A CN106681365A CN 106681365 A CN106681365 A CN 106681365A CN 201510757042 A CN201510757042 A CN 201510757042A CN 106681365 A CN106681365 A CN 106681365A
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- China
- Prior art keywords
- zigbee
- photovoltaic power
- gprs
- power generation
- controller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000010248 power generation Methods 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 29
- 238000004146 energy storage Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
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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
- H02S20/00—Supporting structures for PV modules
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic power station monitoring system, which comprises a Zigbee device, a GPRS device, a photovoltaic power generation device communicated with the Zigbee device and a Zigbee/GPRS gateway communicated with the Zigbee device and the GPRS device, wherein the Zigbee/GPRS gateway is also connected with an optical signal transmitter; the photovoltaic power generation device comprises a solar cell, a controller communicated with the Zigbee device, an energy storage device connected with the controller and an inverter connected with the controller. The automatic sunlight tracking function of a photovoltaic power panel can be realized in a low-power consumption and low-cost mode, the photovoltaic power generation efficiency can be improved, and distributed remote monitoring on photovoltaic power generation systems scattered in different areas can be realized.
Description
Technical field
The present invention relates to field of power, more particularly, to photovoltaic power station monitoring system.
Background technology
The energy is the driving force of social prosperity and development, and the activities of the mankind all be unable to do without it.The average growth rate of current population constantly applies pressure to the demand of the energy, and after oil shock of 1973 crisis, people are seeking always the development of new energy technology.The utilization of the regenerative resources such as solar energy, water energy, wind energy, tide energy, biological energy source is generally had an optimistic view of, and the use of regenerative resource is reasonably on a large scale the main path that eliminates the negative effect that coal, oil are brought.Wherein, solar energy is most important clean energy resource, is analyzed from the forming process of energy, and the energy of other forms present on the earth is nearly all transformed next from solar energy.Solar energy cleaning is pollution-free, aboundresources, is acknowledged as the new forms of energy of most effective replacement fossil energy.
The direct utilization of solar energy is broadly divided into two fields：Solar thermal energy and photovoltaic generation.Solar thermal energy is widely used now, for example solar water heater, and it can be provided in the local heat supply under certain condition, but this partial heat energy be converted into can teletransmission electric energy or mechanical energy efficiency it is very low.Photovoltaic generation is a kind of forms of electricity generation by the way that solar energy to be converted directly into electric energy, is mainly changed by solar photocell.For comparing solar thermal energy, photovoltaic generation has the advantages that high conversion efficiency.Although with the development of photovoltaic power generation technology, the cost and electricity price of photovoltaic generation are also constantly declining.But existing photovoltaic power generation technology still has that cost of investment is higher, it is mainly reflected in two aspects：One is that electric power converter is less efficient；Another is that control system cost and efficiency are higher.
The content of the invention
The purpose of the present invention is the defect for overcoming above-mentioned prior art, there is provided photovoltaic power station monitoring system, using the structure of new control system, with low-power consumption, is realized with a low cost the solar automatic tracking function of photovoltaic power generation plate, improves photovoltaic efficiency；And the photovoltaic generating system to being dispersed in zones of different carries out distributed speech recognition.
The purpose of the present invention is achieved through the following technical solutions：Photovoltaic power station monitoring system, the photovoltaic power generation apparatus connected with Zigbee equipment including Zigbee equipment, GPRS device and the Zigbee/GPRS gateways for connecting Zigbee equipment and GPRS device, the Zigbee/GPRS gateways are also associated with optical signal transmitter；The photovoltaic power generation apparatus include the inverter that the energy storage device that the controller that solar cell is connected with Zigbee equipment is connected with controller is connected with controller.
In the present invention, Zigbee is a kind of low cost, the short-distance wireless communication technology of low-power consumption, can be made up of one to 65000 Zigbee module.In the range of whole network, can realize being in communication with each other between each Zigbee module, and each equipment can be attached by router-module, therefore Zigbee network has extraordinary connective and autgmentability.By the connection of Zigbee network, the wireless connection of large-scale photovoltaic TRT not only can be realized, and allow equipment on-line to be automatically added to network, substantially increase the maintainability of system, reduce the input of human resources.GPRS device is general packet radio service technology, and it is a kind of available mobile data services of gsm mobile telephone user, as long as remote terminal has GPRS or Internet functions, it is possible to easily realize remote real-time monitoring.Because it has the advantages that to have a very wide distribution and long-term online, it is especially suitable for applying in the more severe area of some geographical environments, therefore solves the problems, such as the geographical distribution of photovoltaic generating system well.Optical signal transmitter is independently of photovoltaic power generation apparatus, by the way that the optical signal that optical signal transmitter is obtained is passed into Zigbee/GPRS gateways, then other photovoltaic power generation apparatus are given by data distribution by Zigbee/GPRS gateways, realize the solar automatic tracking of all photovoltaic power generation apparatus, this not only greatly reduces the cost and energy consumption that system carries out from motion tracking, and improves the maintainability of system.
The output voltage of solar cell has a negative characteristic with the rising of temperature in photovoltaic power generation apparatus, and temperature often raises 1 degree, and the open-circuit voltage of silicon solar cell just declines 0.4%, and power output will also reduce 0.4% ~ 0.5%；And its output voltage changes with the angle change of sunshine again, when solar panel and light are into 90 degree of angles, its output voltage is maximum.The discharge and recharge of controller major control battery so as to reach Best Practical state, it can be said that it is the core of photovoltaic power generation apparatus.Inverter is divided into square-wave inverter, ladder inverter and sinewave inverter, and it produces the output signal of different qualities mainly according to the demand of application.
When the present invention is applied, optical signal transmitter adjusts the anglec of rotation, the real-time detection sunlight intensity information of transverse and longitudinal shaft step motor by local track of sun moving law and clock information, and the sunshine angle information of sunlight intensity maximum point in rotating range is preserved, as the pilot angle of each photovoltaic power generation apparatus.Optical signal transmitter sends the intensity and angle signal of sunshine to Zigbee/GPRS gateways is used for the control of next stage, simultaneously clock information is sent to optical signal transmitter for clock synchronization by Zigbee/GPRS gateways, photovoltaic power generation apparatus optical signal being sent to by Zigbee equipment in net, photovoltaic power generation apparatus receive from the optical signal data of Zigbee/GPRS gateways to realize feeding back sunshine from motion tracking and running parameter by Zigbee child nodes module.
To realize the connection of optical signal transmitter and Zigbee/GPRS gateways, further, the optical signal transmitter is connected by serial network with the Zigbee/GPRS gateways.
Further, the GPRS device is also associated with remote monitoring center.In the present invention, the data from Zigbee/GPRS gateways, and the clock data of synchronous each Zigbee/GPRS gateways are monitored by GPRS network.Other equipment with GPRS functions, such as notebook computer etc. can also receive the data from Zigbee/GPRS gateways after certain system authentication as remote monitoring center.When the present invention is applied, the running parameter of each photovoltaic power generation apparatus collected and the running parameter of optical signal transmitter are fed back to remote monitoring center for system monitoring by Zigbee/GPRS gateways by GPRS network, and remote monitoring center is also by the clock data of synchronous each Zigbee/GPRS gateway.
To realize the use of photovoltaic generation, further, the controller is connected with DC load, and the inverter is connected with AC load.
The invention has the advantages that：In the present invention, by the connection of Zigbee network, the wireless connection of large-scale photovoltaic TRT not only can be realized, and allow equipment on-line to be automatically added to network, substantially increase the maintainability of system, reduce the input of human resources.Because GPRS has the advantages that to have a very wide distribution and long-term online, it is especially suitable for applying in the more severe area of some geographical environments, therefore the present invention solves the problems, such as well the geographical distribution of photovoltaic generating system.By the way that the optical signal that optical signal transmitter is obtained is passed into Zigbee/GPRS gateways, then other photovoltaic power generation apparatus are given by data distribution by Zigbee/GPRS gateways, realize the solar automatic tracking of all photovoltaic power generation apparatus, this not only greatly reduces the cost and energy consumption that system carries out from motion tracking, and improves the maintainability of system.
Description of the drawings
Fig. 1 is the structural representation of one specific embodiment of photovoltaic power station monitoring system of the present invention；
Fig. 2 is the structural representation of one specific embodiment of photovoltaic power generation apparatus in photovoltaic power station monitoring system of the present invention.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
As shown in Fig. 1 ~ Fig. 2, photovoltaic power station monitoring system, the photovoltaic power generation apparatus connected with Zigbee equipment including Zigbee equipment, GPRS device and the Zigbee/GPRS gateways for connecting Zigbee equipment and GPRS device, the Zigbee/GPRS gateways are also associated with optical signal transmitter；The photovoltaic power generation apparatus include the inverter that the energy storage device that the controller that solar cell is connected with Zigbee equipment is connected with controller is connected with controller.
In the present embodiment, Zigbee is a kind of low cost, the short-distance wireless communication technology of low-power consumption, can be made up of one to 65000 Zigbee module.In the range of whole network, can realize being in communication with each other between each Zigbee module, and each equipment can be attached by router-module, therefore Zigbee network has extraordinary connective and autgmentability.By the connection of Zigbee network, the wireless connection of large-scale photovoltaic TRT not only can be realized, and allow equipment on-line to be automatically added to network, substantially increase the maintainability of system, reduce the input of human resources.GPRS device is general packet radio service technology, and it is a kind of available mobile data services of gsm mobile telephone user, as long as remote terminal has GPRS or Internet functions, it is possible to easily realize remote real-time monitoring.Because it has the advantages that to have a very wide distribution and long-term online, it is especially suitable for applying in the more severe area of some geographical environments, therefore solves the problems, such as the geographical distribution of photovoltaic generating system well.Optical signal transmitter is independently of photovoltaic power generation apparatus, by the way that the optical signal that optical signal transmitter is obtained is passed into Zigbee/GPRS gateways, then other photovoltaic power generation apparatus are given by data distribution by Zigbee/GPRS gateways, realize the solar automatic tracking of all photovoltaic power generation apparatus, this not only greatly reduces the cost and energy consumption that system carries out from motion tracking, and improves the maintainability of system.
The output voltage of solar cell has a negative characteristic with the rising of temperature in photovoltaic power generation apparatus, and temperature often raises 1 degree, and the open-circuit voltage of silicon solar cell just declines 0.4%, and power output will also reduce 0.4% ~ 0.5%；And its output voltage changes with the angle change of sunshine again, when solar panel and light are into 90 degree of angles, its output voltage is maximum.The discharge and recharge of controller major control battery so as to reach Best Practical state, it can be said that it is the core of photovoltaic power generation apparatus.Inverter is divided into square-wave inverter, ladder inverter and sinewave inverter, and it produces the output signal of different qualities mainly according to the demand of application.
During the present embodiment application, optical signal transmitter adjusts the anglec of rotation, the real-time detection sunlight intensity information of transverse and longitudinal shaft step motor by local track of sun moving law and clock information, and the sunshine angle information of sunlight intensity maximum point in rotating range is preserved, as the pilot angle of each photovoltaic power generation apparatus.Optical signal transmitter sends the intensity and angle signal of sunshine to Zigbee/GPRS gateways is used for the control of next stage, simultaneously clock information is sent to optical signal transmitter for clock synchronization by Zigbee/GPRS gateways, photovoltaic power generation apparatus optical signal being sent to by Zigbee equipment in net, photovoltaic power generation apparatus receive from the optical signal data of Zigbee/GPRS gateways to realize feeding back sunshine from motion tracking and running parameter by Zigbee child nodes module.
To realize the connection of optical signal transmitter and Zigbee/GPRS gateways, it is preferable that the optical signal transmitter is connected by serial network with the Zigbee/GPRS gateways.
Preferably, the GPRS device is also associated with remote monitoring center.In the present invention, the data from Zigbee/GPRS gateways, and the clock data of synchronous each Zigbee/GPRS gateways are monitored by GPRS network.Other equipment with GPRS functions, such as notebook computer etc. can also receive the data from Zigbee/GPRS gateways after certain system authentication as remote monitoring center.When the present invention is applied, the running parameter of each photovoltaic power generation apparatus collected and the running parameter of optical signal transmitter are fed back to remote monitoring center for system monitoring by Zigbee/GPRS gateways by GPRS network, and remote monitoring center is also by the clock data of synchronous each Zigbee/GPRS gateway.
To realize the use of photovoltaic generation, it is preferable that the controller is connected with DC load, the inverter is connected with AC load.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to which the specific embodiment for assert the present invention is confined to these explanations.For general technical staff of the technical field of the invention, the other embodiment drawn under without departing from technical scheme should be included in protection scope of the present invention.
Claims (4)
1. photovoltaic power station monitoring system, it is characterised in that：The photovoltaic power generation apparatus connected with Zigbee equipment including Zigbee equipment, GPRS device and the Zigbee/GPRS gateways for connecting Zigbee equipment and GPRS device, the Zigbee/GPRS gateways are also associated with optical signal transmitter；
The photovoltaic power generation apparatus include the inverter that the energy storage device that the controller that solar cell is connected with Zigbee equipment is connected with controller is connected with controller.
2. photovoltaic power station monitoring system according to claim 1, it is characterised in that：The optical signal transmitter is connected by serial network with the Zigbee/GPRS gateways.
3. photovoltaic power station monitoring system according to claim 1, it is characterised in that：The GPRS device is also associated with remote monitoring center.
4. photovoltaic power station monitoring system according to claim 1, it is characterised in that：The controller is connected with DC load, and the inverter is connected with AC load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757042.4A CN106681365A (en) | 2015-11-08 | 2015-11-08 | Photovoltaic power station monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757042.4A CN106681365A (en) | 2015-11-08 | 2015-11-08 | Photovoltaic power station monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106681365A true CN106681365A (en) | 2017-05-17 |
Family
ID=58863277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510757042.4A Pending CN106681365A (en) | 2015-11-08 | 2015-11-08 | Photovoltaic power station monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106681365A (en) |
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2015
- 2015-11-08 CN CN201510757042.4A patent/CN106681365A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
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| WD01 | Invention patent application deemed withdrawn after publication |