TWI422050B - Controlling apparatus for a concentration photovoltaic system - Google Patents

Description

Diagnostic centralized monitoring device for high concentration solar power generation system

The invention relates to a diagnostic centralized monitoring device for a high concentration solar photovoltaic power generation system, in particular to a diagnostic centralized monitoring device capable of performing a central control function in a high concentration solar photovoltaic power generation system.

Since the angle of illumination of the sun is different during the day, the conventional solar panel can not be used according to the rotation angle of the earth and always faces the sunlight. Therefore, the conventional technology cannot guarantee that the solar panel can always obtain the maximum light intensity. .

In view of this, a solar tracker has been developed which is a mechanism for mounting a solar cell module on its support, which is continuously aligned with the sun. In order to keep the surface of the bracket continuously aligned with the sun, it is necessary to have a sensor and a controller for detecting the change of the position of the sun to detect and control the solar tracker so that the surface of the bracket is continuously aligned with the sun, thereby obtaining the solar cell module. The highest power generation of the group. However, according to the current common tracking solar cells, although they have a solar tracking function, they can always be perpendicular to the incident light of the sun, but for this reason, the structural design is relatively complicated, which not only increases the difficulty of maintenance, but also when necessary. It is still necessary to be assisted by the technician, so the cost of the user is caused by maintenance or repair.

In addition, most of the practical applications of the solar photovoltaic power generation system are mainly applied directly, and the optimal angle of the sun, the direct direct angle of the sun, and even the generated direct current are converted by the direct current converter for the use area. There is no better immediate monitoring and control of the conversion efficiency of the AC to the supply. Therefore, the system configuration is not ideal and the maintenance is difficult, which wastes a lot of resources and costs. Therefore, the general practitioners cannot meet the needs of the user in actual use.

The main object of the present invention is to perform a central control function in a high concentration solar photovoltaic power generation system, overcome the above problems encountered in the prior art, and provide a state in which the diagnostic centralized monitoring unit supervises and controls the state of each working unit and issues control. The command has a diagnostic centralized monitoring device.

For the purpose of the above, the present invention is a diagnostic centralized monitoring device for a high concentration solar photovoltaic power generation system, which is characterized by a diagnostic centralized monitoring entity supervising and controlling the state between the working units and issuing control commands, and each working unit is independent. The utility model comprises at least a basic unit having an alignment mode, a night mode and a recovery mode, a diagnosis unit performing a diagnosis function when the direct sunlight power is less than a sunlight intensity value, an initialize mode and a download mode (Down Load mode). The maintenance unit, a safety unit having an air speed mode and an earthquake mode, and an inspection unit for comparing and updating the time each morning. Thereby, the control command of the origin and the positioning can be transmitted to the controller every day, and when the high-concentration solar power generation system has a direct sunlight power of less than a sunlight intensity, a control command that does not follow the day can be transmitted to The controller, during which the Global Positioning System (GPS) time is transmitted to the controller every hour, thereby The controller's instant clock is calibrated every hour, and the above information can also be recorded on the device for reference.

Please refer to FIG. 1 and FIG. 2 for a schematic view of the structure of the present invention and a schematic view of the use of the present invention. As shown in the figure: The present invention is a diagnostic centralized monitoring device for a high concentration solar power generation system, which can perform a central control function in a high concentration solar power generation system. The diagnostic centralized monitoring device 1 is composed of a diagnostic centralized monitoring body 10 for supervising and controlling the state between the working units and issuing control commands, and each working unit is independent, and includes at least one basic unit 11, a diagnostic unit 12, and a maintenance unit. The unit 13 is composed of a safety unit 14 and an inspection unit 15.

The basic unit 11 includes an alignment mode 111 for receiving the control command issued by the diagnostic centralized monitoring body 10 and executing at least one driving direction of the solar tracker 2, and one for controlling the at least one The sunlight tracker 2 is leveled to avoid the nighttime mode 112 in which the weather is unstable, and a recovery mode 113 for performing the recovery mechanism after the maintenance of the at least one solar tracker 2 described above.

The diagnostic unit 12 is configured to inspect a solar sensor 21 on the at least one solar tracker 2 and perform a diagnostic function thereon, when the solar sensor 21 is diagnosed When the break is normal, the azimuth/elevation motor 22 and the inverter 23 are inspected.

The maintenance unit 13 includes an initialize mode 131 for extracting the azimuth/elevation angle value of each of the solar trackers 2 after the at least one solar tracker 2 is installed or reinstalled. And being electrically connected to the at least one solar tracker 2 for remotely downloading the download mode (Down Load) mode 132 of the controller 24 control program.

The safety unit 14 includes an air speed mode 141 for causing the solar sensor 21 to trip and commanding the solar tracker 2 to level off when the wind speed is too high, and a solar sensor 21 for use in an earthquake. Jumping and commanding the sunlight tracker 2 to level the earthquake mode 142.

The inspection unit 15 is adapted to compare the time of the controller 24 described above every morning and to update when not equal. As described above, a new diagnostic centralized monitoring device 1 is constructed.

When the present invention utilizes the above-described diagnostic centralized monitoring device 1 to supervise the high-concentration solar power generation system, in a preferred embodiment, when the high-concentration solar power generation system is in Direct Normal Irradiance (DNI) When the value of the sunlight intensity (W/m ² ) is less than a certain time, the diagnostic centralized monitoring body 10 reads the azimuth/elevation angle of each solar tracker 2 and compares the track values to start the The alignment mode 111 of the base unit 11 transmits a control command that does not follow the day to the controller 24, so that the controller 24 stops the tracking of the solar tracker 2; if the high-concentration solar power generation system has a direct power greater than the solar light When the solar intensity value is greater than a predetermined angle, the alignment mode 111 of the basic unit 11 is activated by the diagnostic centralized monitoring body 10 to transmit a positioning control command to the controller 24, which is driven by the controller 24. The azimuth/elevation motor 22 tracks the solar tracker 2 to a specified angular position; and when the sun goes down, the diagnostic centralized monitoring body 10 activates the basic The alignment mode 111 of the unit 11 transmits a control command of the origin to the controller 24, and the controller 24 drives the azimuth/elevation motor 22 to turn the solar tracker 2 back to the east, and the sun rises every other day. When you start, you can continue to track the sun.

When the sun goes down, the night mode 112 that activates the basic unit 11 transmits a leveling control command to the controller 24, and the controller 24 drives the azimuth/elevation motor 22 to flatten the solar tracker 2 as a whole. Moreover, after the solar tracker 2 is repaired, the diagnostic centralized monitoring body 10 also initiates the recovery mode 113 of the basic unit 11 to transmit a control command of the recovery mechanism to the controller 24, whereby the controller 24 is Driving the azimuth/elevation motor 22 returns the solar tracker 2 to its original mechanism state.

When the direct concentration power of the solar concentrating solar power generation system is less than a solar light intensity value, the diagnostic unit 12 is activated by the diagnostic centralized monitoring body 10 to perform a diagnostic function, and the sunlight located on the solar tracker 2 is checked. The sensor 21, the azimuth/elevation angle motor 22 and the external inverter 23 are provided. The diagnostic centralized monitoring main body 10 starts the inspection unit 15 to transmit a Global Positioning System (GPS) time to the controller 24 every hour, thereby realizing the Real Time Clock of the controller 24. The calibration is performed every hour and the above information is also recorded in the diagnostic centralized monitoring device 1 for reference.

In summary, the present invention is a diagnostic centralized monitoring device for a high-concentration solar power generation system, which can effectively improve various shortcomings of the conventional use, and can transmit back to the origin and the positioning control command to the controller every day, and when the concentrated sunlight is high. The power generation system transmits a control command that does not follow the day to the controller when the direct power of the sunlight is less than a solar intensity value, and transmits the GPS time to the controller every hour, thereby using the instant clock of the controller. It is calibrated every hour, and the above information can also be recorded in the device for reference, so that the invention can be made more progressive, more practical and more suitable for the user. The key requirements are to file a patent application in accordance with the law.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

1‧‧‧Diagnostic centralized monitoring device

10‧‧‧With diagnostic centralized monitoring subject

11‧‧‧Basic unit

111‧‧‧Alignment mode

112‧‧‧ night mode

113‧‧‧Restoration mode

12‧‧‧Diagnostic unit

13‧‧‧Maintenance unit

131‧‧‧Initial mode

132‧‧‧Download mode

14‧‧‧Safety unit

141‧‧‧ wind speed mode

142‧‧‧ earthquake mode

15‧‧‧Check unit

2‧‧‧Sunlight Tracker

21‧‧‧Sunlight sensor

22‧‧‧Azimuth/elevation motor

23‧‧‧Inverter

24‧‧‧ Controller

Figure 1 is a schematic diagram of the architecture of the present invention.

Fig. 2 is a schematic view showing the use of the present invention.

10‧‧‧With diagnostic centralized monitoring subject

11‧‧‧Basic unit

111‧‧‧Alignment mode

112‧‧‧ night mode

113‧‧‧Restoration mode

12‧‧‧Diagnostic unit

13‧‧‧Maintenance unit

131‧‧‧Initial mode

132‧‧‧Download mode

14‧‧‧Safety unit

141‧‧‧ wind speed mode

142‧‧‧ earthquake mode

15‧‧‧Check unit

Claims (4)

A diagnostic centralized monitoring device for a high-concentration solar power generation system is a diagnostic centralized monitoring entity that supervises and controls the state between the working units and issues control commands, and each working unit is independent, including: a basic unit containing one And an aligning mode for receiving a control command issued by the diagnostic centralized monitoring body and performing at least one direction of the tracker, a night mode for controlling the at least one solar tracker leveling, and a recovery mode for performing a recovery mechanism after the at least one solar tracker is repaired; a diagnostic unit for inspecting a solar sensor on the at least one solar tracker and Performing a diagnostic function, when the solar sensor is diagnosed as normal, then checking the azimuth/elevation angle motor and the inverter (Inverter); a maintenance unit containing one for the at least one solar tracker installed After or reinstalling the azimuth drive, take the initial (Initialize) mode of the azimuth/elevation deviation value of each solar tracker, One is electrically connected to the at least one solar tracker for remotely downloading a controller (Down Load) mode of the controller control program; and a security unit is configured to enable the sunlight to be sensed when the wind speed is too large Disengages and commands the wind tracker to flatten the wind speed mode, and a seismic mode that causes the solar sensor to trip and command the solar tracker to level out during an earthquake; An inspection unit is configured to compare the controller time every morning and update when not equal; wherein the night mode transmits a leveling control command to the controller, and the controller drives the azimuth/ An elevation motor that flattens the solar trackers; and the recovery mode transmits a control command of the recovery mechanism to the controller, and the controller drives the azimuth/elevation motor to restore the solar trackers to the original There is a mechanism state. A diagnostic centralized monitoring device for a high concentration solar photovoltaic power generation system according to claim 1, wherein the high concentration solar power generation system has a Direct Normal Irradiance (DNI) less than a sunlight intensity (W/ When the value of m2) continues for a period of time, the diagnostic centralized monitoring main system reads the azimuth/elevation angle of each solar tracker, compares the track value, and starts the alignment mode in the basic unit to transmit a no-following day. The control command is sent to the controller to cause the controller to stop tracking by the solar tracker. A diagnostic centralized monitoring device for a high-concentration solar power generation system according to claim 1, wherein the high-concentration solar power generation system has a direct sunlight power greater than a sunlight intensity value, that is, greater than a predetermined angle The alignment mode in the basic unit is initiated by the diagnostic centralized monitoring body to transmit a positioning control command to the controller, and the controller drives the solar tracker to a specified angular position. High-concentration solar power generation system according to item 1 of the patent application scope The diagnostic centralized monitoring device, wherein the high concentration solar power generation system performs a diagnostic function by the diagnostic unit when the direct sunlight power is less than a solar intensity value.