CN106681364A - Tracking system for monitoring power station - Google Patents
Tracking system for monitoring power station Download PDFInfo
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- CN106681364A CN106681364A CN201510753508.3A CN201510753508A CN106681364A CN 106681364 A CN106681364 A CN 106681364A CN 201510753508 A CN201510753508 A CN 201510753508A CN 106681364 A CN106681364 A CN 106681364A
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- zigbee
- gprs
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- tracking system
- power station
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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
- 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]
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Abstract
The invention discloses a tracking system for monitoring a power station. The tracking system includes a Zigbee device, a GPRS device, photovoltaic power generation apparatuses and a Zigbee/GPRS gateway. The Zigbee/GPRS gateway is also connected to an optical signal transmitter. Each photovoltaic power generation apparatus includes a solar battery, a controller, an energy storage apparatus, and an inverter. The Zigbee/GPRS gateway also includes a Zigbee module, a GPRS module, a serial communication module and a processor. The optical signal transmitter includes a mechanical structure and a control board. According to the invention, the optical signal transmitter is capable of independently detecting optical signal information which is collectively transmitted by the Zigbee device to each photovoltaic power generation apparatus for automatically tracking sunlight, so that the system flexibly addresses the problem of large-energy consumption and high cost required in automatic sunlight tracking at large-scale photovoltaic power stations.
Description
Technical field
The present invention relates to field of power, more particularly, to the tracking system in monitoring power station.
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 the tracking system in monitoring power station, 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：The tracking system in monitoring power station, 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；
The optical signal transmitter is included for realizing that photovoltaic panel is physically rotated with the frame for movement of detection and localization and control panel for realizing automatic track algorithm, signals collecting, the frame for movement includes photovoltaic electroplax, alignment sensor module, rotation platform, transverse and longitudinal stepper motor and longitudinal axis stepper motor, and the control panel includes MCU module, driving stepper motor module and communication module.
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 to 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.Specifically, alignment sensor module be used for detect transverse axis stepper motor X direction the anglec of rotation and longitudinal axis stepper motor y direction the anglec of rotation, its by pulse mode realize.Transverse axis stepper motor and longitudinal axis stepper motor are the digital control motors that electric impulse signal is transformed into angular displacement, in the case of non-overload, its rotating speed, the position for stopping are solely dependent upon the frequency and umber of pulse of pulse signal, and do not affected by load change, simultaneously its there was only periodic error and without cumulative errors, thus high precision.MCU module is used to realize the functions such as twin shaft step motor control, current sample, the acquisition of alignment sensor module by signal and data transfer, other peripheral hardwares are controlled simultaneously, and driving stepper motor module is then used for the micro-stepping control of transverse axis stepper motor and longitudinal axis stepper motor in the presence of MCU module.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 function of MCU module, further, the MCU module is TMS320F28035DPS microprocessors.
To realize the function of driving stepper motor module, further, the driving stepper motor module is TA8435 stepper motor driving circuits.
To realize the programming to control panel, further, the control panel also includes programming port, and the programming port is connected with PC.
To realize the connection of optical signal transmitter and Zigbee/GPRS gateways, further, the communication module is connected by serial network with the serial communication module.
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, using network technology of the Zigbee equipment in combination with GPRS, the problems such as special general photo-voltaic power generation station Regional Distribution, difficult monitoring and easily aging wiring is solved, photovoltaic generating system low cost, low-power consumption and high maintainable monitor in real time is realized.Optical signal transmitter is carried out into the independent detection of optical signal information independently of photovoltaic power generation apparatus, and be sent to each photovoltaic power generation apparatus and carry out solar automatic tracking by the unification of Zigbee equipment, this neatly solves the problems, such as that large-scale photovoltaic power station carries out needing to consume mass energy and cost during solar automatic tracking.
Description of the drawings
Fig. 1 is the structural representation of one specific embodiment of tracking system in monitoring power station of the present invention；
Fig. 2 be monitoring power station of the present invention tracking system in one specific embodiment of photovoltaic power generation apparatus structural representation；
Fig. 3 be monitoring power station of the present invention tracking system in one specific embodiment of Zigbee/GPRS gateways structural representation；
Fig. 4 be monitoring power station of the present invention tracking system in one specific embodiment of optical signal transmitter structural representation.
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 Figures 1 to 4, the tracking system in monitoring power station, 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；
The Zigbee/GPRS gateways include the GPRS module and the serial communication module and the processor for controlling Zigbee module and GPRS module of the connection of optical signal transmitter of the Zigbee module for connecting Zigbee equipment and GPRS device connection；
The optical signal transmitter is included for realizing that photovoltaic panel is physically rotated with the frame for movement of detection and localization and control panel for realizing automatic track algorithm, signals collecting, the frame for movement includes photovoltaic electroplax, alignment sensor module, rotation platform, transverse and longitudinal stepper motor and longitudinal axis stepper motor, and the control panel includes MCU module, driving stepper motor module and communication module.
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 to 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.Specifically, alignment sensor module be used for detect transverse axis stepper motor X direction the anglec of rotation and longitudinal axis stepper motor y direction the anglec of rotation, its by pulse mode realize.Transverse axis stepper motor and longitudinal axis stepper motor are the digital control motors that electric impulse signal is transformed into angular displacement, in the case of non-overload, its rotating speed, the position for stopping are solely dependent upon the frequency and umber of pulse of pulse signal, and do not affected by load change, simultaneously its there was only periodic error and without cumulative errors, thus high precision.MCU module is used to realize the functions such as twin shaft step motor control, current sample, the acquisition of alignment sensor module by signal and data transfer, other peripheral hardwares are controlled simultaneously, and driving stepper motor module is then used for the micro-stepping control of transverse axis stepper motor and longitudinal axis stepper motor in the presence of MCU module.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 function of MCU module, it is preferable that the MCU module is TMS320F28035DPS microprocessors.
To realize the function of driving stepper motor module, it is preferable that the driving stepper motor module is TA8435 stepper motor driving circuits.
To realize the programming to control panel, it is preferable that the control panel also includes programming port, the programming port is connected with PC.
To realize the connection of optical signal transmitter and Zigbee/GPRS gateways, it is preferable that the communication module is connected by serial network with the serial communication module.
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 (7)
1. the tracking system in power station is monitored, 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；
The optical signal transmitter is included for realizing that photovoltaic panel is physically rotated with the frame for movement of detection and localization and control panel for realizing automatic track algorithm, signals collecting, the frame for movement includes photovoltaic electroplax, alignment sensor module, rotation platform, transverse and longitudinal stepper motor and longitudinal axis stepper motor, and the control panel includes MCU module, driving stepper motor module and communication module.
2. the tracking system in monitoring power station according to claim 1, it is characterised in that：The MCU module is TMS320F28035DPS microprocessors.
3. the tracking system in monitoring power station according to claim 1, it is characterised in that：The driving stepper motor module is TA8435 stepper motor driving circuits.
4. the tracking system in monitoring power station according to claim 1, it is characterised in that：The control panel also includes programming port, and the programming port is connected with PC.
5. the tracking system in monitoring power station according to claim 1, it is characterised in that：The communication module is connected by serial network with the serial communication module.
6. the tracking system in monitoring power station according to claim 1, it is characterised in that：The GPRS device is also associated with remote monitoring center.
7. according to any one in claim 1 ~ 6 monitoring power station tracking system, 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 |
|---|---|---|---|
| CN201510753508.3A CN106681364A (en) | 2015-11-08 | 2015-11-08 | Tracking system for monitoring power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753508.3A CN106681364A (en) | 2015-11-08 | 2015-11-08 | Tracking system for monitoring power station |
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| CN106681364A true CN106681364A (en) | 2017-05-17 |
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| CN201510753508.3A Pending CN106681364A (en) | 2015-11-08 | 2015-11-08 | Tracking system for monitoring power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769388A (en) * | 2017-12-01 | 2018-03-06 | 江苏聚亿智能科技有限公司 | Photovoltaic generating system |
| CN109669483A (en) * | 2018-12-11 | 2019-04-23 | 内蒙古伊泰新能源开发有限公司 | The method and device of orientation tracking, solar tracking system |
-
2015
- 2015-11-08 CN CN201510753508.3A patent/CN106681364A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769388A (en) * | 2017-12-01 | 2018-03-06 | 江苏聚亿智能科技有限公司 | Photovoltaic generating system |
| CN109669483A (en) * | 2018-12-11 | 2019-04-23 | 内蒙古伊泰新能源开发有限公司 | The method and device of orientation tracking, solar tracking system |
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