CN202217189U - Tracking controller used for preventing power peak from sudden change and used in large-scale photovoltaic power station - Google Patents
Tracking controller used for preventing power peak from sudden change and used in large-scale photovoltaic power station Download PDFInfo
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- CN202217189U CN202217189U CN2011203071903U CN201120307190U CN202217189U CN 202217189 U CN202217189 U CN 202217189U CN 2011203071903 U CN2011203071903 U CN 2011203071903U CN 201120307190 U CN201120307190 U CN 201120307190U CN 202217189 U CN202217189 U CN 202217189U
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- power station
- tracking
- scale photovoltaic
- tracking control
- photovoltaic power
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Abstract
The utility model provides a tracking controller used for preventing a power peak from a sudden change and used in a large-scale photovoltaic power station and belongs to a field of sun light tracking device. The tracking controller used for preventing a power peak from a sudden change and used in a large-scale photovoltaic power station includes a motor. An input terminal of the motor connects with tracking controllers. It is characterized in that a switchboard is arranged in the utility model. The switchboard connects with the multiple tracking controllers through a 485 bus. The tracking controllers are distributed in line-column-type regions. All tracking systems in the large-scale photovoltaic power station are divided by regions. Each position adjustment of the tracking systems is conducted in a region sequence. After the adjustment of a first region is finished, the adjustment of a second region starts. In this way, the input power peak of the power station at the same time can be reduced substantially. The tracking controller used for preventing the power peak from the sudden change and used in the large-scale photovoltaic power station in the utility model has high reliability and high tracking precision, and can realize an aim of preventing the power peak from the sudden change in the large-scale photovoltaic power station. The maintenance cost is reduced. And the reliability of power station operation is improved.
Description
Technical field
The utility model provides a kind of solar tracking device that is applied to solar power plant, and especially a kind of large-scale photovoltaic power station is with the tracking control unit that prevents that the power waves overshooting from becoming.
Background technology
Sun power is one of most important energy in the various regenerative resources, and under world energy consumption megatrend totally, the development of future world must be fired energy war.Development and use sun power becomes a big theme and common action of international community, and national governments all are used as solar energy resources the important content of national sustainable development strategy.Various solar products have obtained number of applications.Especially solar electrical energy generation develops very rapid.Countries in the world are helped the development of sun power clean energy resource one after another.
The tracking control unit in present single double-axis tracking power station adopts time control and light-operated two kinds, and wherein reliable and popular with time control, tracking control unit is according to residing longitude and latitude and current time; Calculate the coordinate of the sun on high, drive motor rotates then, with support towards the sun; And (generally being one minute) starter motor is adjusted once at set intervals; If follow the tracks of in the power station (installed capacitys of several megawatts even tens megawatts) at large-scale photovoltaic, the motor of all trackers starts simultaneously, because number of motors is huge; Power station moment institute wasted work rate can soar to high suddenly; The sudden change of emergent power crest influences power grid security, and the as easy as rolling off a log line of laying in the power station that burns out.
The utility model content
According to the deficiency of above prior art, the technical matters that the utility model will solve is: a kind of reliability height is provided, follows the trail of accurate large-scale photovoltaic power station with the tracking control unit that prevents that the power waves overshooting from becoming.
The utility model solves the technical scheme that its technical matters adopted: a kind of large-scale photovoltaic power station is with the tracking control unit that prevents that the power waves overshooting from becoming; Comprise motor; The input end connection tracking controller of motor; It is characterized in that: exchange is set, and exchange connects some tracking control units through 485 buses, and tracking control unit is the determinant areal distribution.
Tracking control units all in the large-scale photovoltaic power station is carried out area dividing; Use the tracker team control center that runs in the upper exchange in power station the tracking control unit of zones of different to be write the different orientation adjustment time through 485 communication interfaces; Undertaken by zone sequence when tracker is carried out orientation adjustment each time, after adjustment was accomplished in first zone, second zone adjusted; By that analogy, can significantly reduce the power input peak value in same time power station like this.
Wherein preferred version is:
Described tracking control unit is provided with clock chip, and the clock chip of the tracking control unit of zones of different is provided with the different orientation adjustment time.Built-in has clock chip in the tracking control unit, guarantees that the time in the tracking control unit is consistent, and in drive motor rotation at set intervals, with adjustment tracker orientation, accomplishes the tracking adjustment of overall optical overhead utility.The tracking control unit of zones of different is provided with the different orientation adjustment time, avoids all tracking control units starter motor simultaneously, and causes the power station power input to skyrocket.
The utility model large-scale photovoltaic power station is with preventing that the beneficial effect that tracking control unit had that the power waves overshooting becomes from being: exchange is set; Exchange connects some tracking control units through 485 buses; Tracking control unit is the determinant areal distribution, and trackers all in the large-scale photovoltaic power station is carried out area dividing, is undertaken by zone sequence when tracker is carried out orientation adjustment each time; After adjustment is accomplished in first zone; Second zone adjusted, and by that analogy, can significantly reduce the power input peak value in same time power station like this.The utility model reliability is high, tracking is accurate, can realize that the power waves overshooting that prevents of large-scale photovoltaic power station becomes, and has reduced maintenance cost, has improved generating efficiency.
Description of drawings
Fig. 1 is the electrical principle block scheme of the utility model;
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
As shown in Figure 1, exchange connects some tracking control units through 485 buses, and tracking control unit is the determinant areal distribution.The output terminal of the input end connection tracking controller of motor.Described tracking control unit is provided with clock chip, and the clock chip of the tracking control unit of zones of different is provided with the different orientation adjustment time.
Tracking control units all in the large-scale photovoltaic power station is carried out area dividing; Use the tracker team control center that runs in the upper exchange in power station the tracking control unit of zones of different to be write the different orientation adjustment time through 485 communication interfaces; Undertaken by zone sequence when tracker is carried out orientation adjustment each time, after adjustment was accomplished in first zone, second zone adjusted; By that analogy, can significantly reduce the power input peak value in same time power station like this.
Built-in has clock chip in the tracking control unit, guarantees that the time in the tracking control unit is consistent, and in drive motor rotation at set intervals, with adjustment tracker orientation, accomplishes the tracking adjustment of overall optical overhead utility.
Exchange in the utility model, tracking control unit are common prior art, its setting and be used for industry technician and grasp.
Principle of work and use:
In order to prevent the starter motor rotation simultaneously at one time of all tracking control units; The time interval that starter motor rotates is set; For example can be the 10th second of per minute, the 20th second etc., the time interval of orientation adjustment remained unchanged; Reach the tracker that staggers and carried out the time point of orientation adjustment, thereby reached the function that reduces the driving power peak value.
Each monomer tracker is equipped with a tracking control unit.When needs carry out orientation adjustment:
The first step, the first row tracker at first drive motor is carried out orientation adjustment;
In second step, after the first row tracker orientation adjustment finished, secondary series was adjusted;
In the 3rd step, by that analogy, accomplish whole angular setting.
Claims (2)
1. a large-scale photovoltaic power station is with the tracking control unit that prevents that the power waves overshooting from becoming; Comprise motor, the input end connection tracking controller of motor is characterized in that: exchange is set; Exchange connects some tracking control units through 485 buses, and tracking control unit is the determinant areal distribution.
2. large-scale photovoltaic power station according to claim 1 is with the tracking control unit that prevents that the power waves overshooting from becoming; It is characterized in that: described tracking control unit is provided with clock chip, and the clock chip of the tracking control unit of zones of different is provided with the different orientation adjustment time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203071903U CN202217189U (en) | 2011-08-23 | 2011-08-23 | Tracking controller used for preventing power peak from sudden change and used in large-scale photovoltaic power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203071903U CN202217189U (en) | 2011-08-23 | 2011-08-23 | Tracking controller used for preventing power peak from sudden change and used in large-scale photovoltaic power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217189U true CN202217189U (en) | 2012-05-09 |
Family
ID=46016436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203071903U Expired - Fee Related CN202217189U (en) | 2011-08-23 | 2011-08-23 | Tracking controller used for preventing power peak from sudden change and used in large-scale photovoltaic power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217189U (en) |
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2011
- 2011-08-23 CN CN2011203071903U patent/CN202217189U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120823 |