CN111417241A - Photovoltaic power station lighting box and control method thereof - Google Patents
Photovoltaic power station lighting box and control method thereof Download PDFInfo
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- CN111417241A CN111417241A CN202010174474.3A CN202010174474A CN111417241A CN 111417241 A CN111417241 A CN 111417241A CN 202010174474 A CN202010174474 A CN 202010174474A CN 111417241 A CN111417241 A CN 111417241A
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a photovoltaic power station illumination box, which comprises a box body and also comprises: a light intensity detector and a first control device; the light intensity detector is electrically connected with the first control device; the first control device obtains a light intensity detection signal of the light intensity detector and controls the connection or disconnection of the lighting loop of the photovoltaic power station according to the light intensity detection signal. A control method of the photovoltaic power station lighting box is also disclosed. Acquire photovoltaic power plant's ambient light intensity through light intensity detector, the illumination return circuit of photovoltaic power plant is switched on automatically when light intensity is not enough, self-closing illumination return circuit when light intensity is sufficient, the shortcoming of photovoltaic power plant lighting system among the prior art because of season change to fortune dimension personnel's dependence and regional adaptability is poor has been overcome, photovoltaic power plant lighting system's intelligent control level has been improved, the convenience of converging box, panel and other equipment inspection and maintenance to photovoltaic power plant has been improved.
Description
Technical Field
The invention relates to the field of illumination control of photovoltaic power stations, in particular to a photovoltaic power station illumination box and a control method thereof.
Background
At present, in the use and maintenance of photovoltaic power plant, for the maintenance convenience that improves collection flow box and panel, the environment that has extensively used intelligent lighting technology to collection flow box and panel, the application illumination box and intelligent lighting control can effectively improve the lighting control who converges flow box and panel and locate the environment. If photovoltaic power plant's intelligent lighting control system design is unreasonable, under the not enough condition of ambient light, can not start lighting device in the time that is fit for in time, can cause the inconvenience to collection flow box and panel inspection and maintenance, lead to the maintenance degree of difficulty to increase.
The intelligent lighting control system commonly used in the existing photovoltaic power station has insufficient sensitivity to light, generally adopts a time control mode, and gradually delays the time of turning on the electric lamp or the electric appliance every day and gradually advances the time of turning off the electric lamp or the electric appliance every day when the electric lamp or the electric appliance is transited from winter to summer; when the summer is transited to the winter, the time for turning on the electric lamp or the electric appliance is gradually advanced every day, and the time for turning off the electric lamp or the electric appliance is gradually delayed. The time control mode needs to be adjusted continuously according to the change of seasons, and operation and maintenance personnel are required to accurately grasp the change of time. Another control mode is that the time of switching on or off the lamp or the electric appliance can be automatically and finely adjusted every day according to the difference of the longitude and latitude of the local area and the morning and evening of sunrise and sunset. The control mode according to the longitude and latitude has large limitation, low adaptability and poor universality aiming at regions with different longitude and latitude of the world, and can not meet the use requirements of users. The two control modes are limited in time and longitude and latitude areas, and cannot sensitively sense the light and shade of light and control a switch to start illumination.
Disclosure of Invention
The embodiment of the invention aims to provide a photovoltaic power station illumination box and a control method thereof, which are used for acquiring the ambient light intensity of a photovoltaic power station through a light intensity detector, automatically switching on an illumination loop of the photovoltaic power station when the light intensity is insufficient, and automatically switching off the illumination loop when the light intensity is sufficient, so that the defects of dependence of a photovoltaic power station illumination system on operation and maintenance personnel and poor regional adaptability caused by seasonal changes in the prior art are overcome, the intelligent control level of the photovoltaic power station illumination system is improved, and the convenience for inspection and maintenance of a photovoltaic power station junction box, a cell panel and other equipment is improved.
In order to solve the above technical problem, a first aspect of the present invention provides a lighting box for a photovoltaic power station, including a box body, further including: a light intensity detector and a first control device;
the light intensity detector is electrically connected with the first control device;
the first control device obtains a light intensity detection signal of the light intensity detector and controls the connection or disconnection of the lighting loop of the photovoltaic power station according to the light intensity detection signal.
Further, the light intensity detector comprises a first light intensity detection component;
the first light intensity detection assembly comprises a plurality of first light intensity detection devices arranged on the outer surface of the lighting box of the photovoltaic power station;
the plurality of first light intensity detection devices are respectively and electrically connected with the first control device.
Further, the plurality of first light sensation detection devices are respectively arranged on the top wall and/or the side wall of the outer surface of the photovoltaic power station lighting box.
Furthermore, the lighting loop of the photovoltaic power station comprises a plurality of lighting branches, and the plurality of lighting branches correspond to a plurality of working areas of the photovoltaic power station respectively;
the first control device is electrically connected with the plurality of lighting branches and respectively controls the connection or disconnection of the plurality of lighting branches.
Further, the light intensity detector further includes: a second light intensity detection component;
the second light intensity detection assembly comprises a plurality of second light intensity detection devices which are respectively arranged in a plurality of working areas of the photovoltaic power station;
and the first control device respectively controls the on or off of the illumination branches corresponding to the working areas according to the light intensity detection signals of the second light intensity detection devices.
Furthermore, the plurality of second light intensity detection devices are electrically connected with the first control device in a wired mode and/or a wireless mode respectively.
Further, photovoltaic power plant lighting box still includes: a mode switching switch and a second control device;
the mode selector switch is electrically connected with the first control device or the second control device and is electrically connected with a control power supply circuit breaker;
the second control device is used for manually controlling the on or off of the lighting circuit of the photovoltaic power station;
the mode selector switch is used for switching the connection between the first control device or the second control device and the control power supply circuit breaker.
The invention provides a control method of a photovoltaic power station lighting box, which is used for controlling the photovoltaic power station lighting box and comprises the following steps:
acquiring a detection signal of a light intensity detector;
judging whether the value of the detection signal is less than or equal to a first preset value or not;
and when the value of the detection signal is smaller than or equal to the first preset value, controlling the conduction of the lighting loop of the photovoltaic power station through a first control device.
The invention provides a control method of a lighting box of a photovoltaic power station, which is used for controlling the lighting box of the photovoltaic power station and comprises the following steps:
acquiring detection signals of a plurality of second light intensity detection devices;
judging whether the value of the detection signal of each second light intensity detection device is less than or equal to the first preset value or not;
and when the value of the detection signal of any one second light intensity detection device is smaller than or equal to a first preset value, controlling the conduction of the lighting branch of the photovoltaic power station working area corresponding to the second light intensity detection device through a first control device.
The fourth aspect of the invention provides a control method for a lighting box of a photovoltaic power station, which is used for controlling the lighting box of the photovoltaic power station and comprises the following steps:
the control mode switch is connected with a second control device, so that the second control device is electrically connected with the power supply circuit device;
and the second control device is used for manually controlling the on or off of the lighting loop of the photovoltaic power station.
The technical scheme has the following beneficial technical effects:
acquire photovoltaic power plant's ambient light intensity through light intensity detector, the illumination return circuit of photovoltaic power plant is switched on automatically when light intensity is not enough, self-closing illumination return circuit when light intensity is sufficient, the shortcoming of photovoltaic power plant lighting system among the prior art because of season change to fortune dimension personnel's dependence and regional adaptability is poor has been overcome, photovoltaic power plant lighting system's intelligent control level has been improved, the convenience of converging box, panel and other equipment inspection and maintenance to photovoltaic power plant has been improved.
Drawings
FIG. 1 is a schematic diagram of the position of a light intensity detection assembly provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a lighting box of a photovoltaic power station provided by an embodiment of the invention;
FIG. 3 is a schematic circuit diagram of a photovoltaic power plant lighting box provided by an embodiment of the invention;
FIG. 4 is a flowchart of a first photovoltaic power plant lighting box control method provided by an embodiment of the invention;
FIG. 5 is a flowchart of a second photovoltaic power plant lighting box control method provided by the embodiment of the invention;
fig. 6 is a flowchart of a third photovoltaic power plant lighting box control method provided by the embodiment of the invention.
Reference numerals:
1. the lighting protection device comprises an incoming line breaker, 2, a contactor, 3, a protection breaker, 4, a lightning protection device, 5-8, a lighting power supply breaker, 9, a control power supply breaker, 10, a mode switching switch, 11, a first control device, 12, a power supply bus copper bar, 13, a light intensity detector, 14 and a box body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example one
Referring to fig. 1 and 2, the photovoltaic power station lighting box includes a box body 14, and further includes an incoming line breaker 1, a contactor 2, a protection breaker 3, a lightning protection device 4, lighting power circuit breakers 5-8, a control power circuit breaker 9, and a power supply busbar 12.
As shown in fig. 1, the lower end of an incoming line breaker 1 is connected with the upper end of a contactor 2, and the lower end of the contactor 2 is connected with a power supply busbar 12; the protection circuit breaker 3 and the lightning protector 4 are connected with the power supply busbar 12 to realize lightning protection monitoring and protection; the lighting power supply circuit breakers 5-8 are connected with the power supply bus copper bar 12 to provide lighting power supply; the control power supply circuit breaker 9 is connected with the lower end of the incoming line circuit breaker 1 and provides power for the automatic and manual control lighting loop.
Referring to fig. 1, the present embodiment provides a photovoltaic power station lighting box, which includes a box body 14, and further includes: a light intensity detector 13 and a first control means 11. The light intensity detector 13 is electrically connected to the first control device 11. The first control device 11 obtains a light intensity detection signal of the light intensity detector 13, and controls the on/off of the lighting loop of the photovoltaic power station according to the light intensity detection signal.
Referring to fig. 2, in the present embodiment, the light intensity detector 13 includes a first light intensity detecting element. The first light intensity detection component comprises a plurality of first light intensity detection devices arranged on the outer surface of the lighting box body 14 of the photovoltaic power station.
The first light intensity detection assembly can be arranged on the outer surface of the lighting box body 14 of the photovoltaic power station. Optionally, the first light intensity detecting assembly may be disposed on the same side wall or different side walls of the outer surface of the lighting box body 14 of the photovoltaic power station, or may be disposed on a top wall of the outer surface of the lighting box body 14 of the photovoltaic power station, so as to better detect the light intensity of the environment where the photovoltaic power station is located.
The plurality of first light intensity detection devices are electrically connected with the first control device 11 respectively, so that light intensity detection signals are transmitted to the first control device 11 in real time. After receiving the light intensity detection signal, the first control device 11 compares the value of the light intensity detection signal with a first preset value.
When first light intensity detection subassembly includes a plurality of first light intensity detection device, in order to improve the accuracy of light intensity detection signal numerical value, first controlling means 11 can get the average value with a plurality of numerical values of the first light intensity detection signal of a plurality of that receive, compares this average value with first preset numerical value, avoids sheltering from because of the accident, artificially shelters from and sets up the maloperation that detection error that causes because of first light intensity detection subassembly sets up reasons such as photovoltaic power plant illumination box lateral wall position orientation caused and causes.
When the light intensity detection signal value is smaller than or equal to a first preset value, indicating that the ambient light intensity of the photovoltaic power station is lower than the requirement, and needing to turn on a lighting system of the photovoltaic power station, so that the ambient light of the photovoltaic power station is sufficient, and the light is sufficient when operation and maintenance personnel overhaul the equipment; when the light intensity detection signal value is larger than a first preset value, the light intensity detection signal indicates that the ambient light intensity of the photovoltaic power station can meet the requirement of operation and maintenance personnel on operating the equipment, and an illumination loop of the photovoltaic power station does not need to be opened.
Referring to fig. 3, one end of the incoming line breaker 1 is connected to an external incoming line power supply, and manual and automatic control selection of the lighting circuit is performed through the knob-on mode selector switch 10. Through mode change over switch 10, can carry out control mode's selection as required, when the permanent illumination of needs, when not influenced by external factors, can directly communicate manual control, the inlet wire power of the intercommunication of switch-on contactor 2's control coil switch-on contactor 2 switches on the illumination return circuit of photovoltaic power plant, when needing photovoltaic power plant illumination case automatic control illumination return circuit, can select mode change over switch 10's automatic control, by installing light intensity detector 13 on box 14, carry out light luminance response, when light luminance is dark, the inside sensitization backward diode that sets up of first controlling means 11 switches on, communicate inside node return circuit, output closed signal to the contactor 2 coil return circuit that has connected, start contactor 2, supply power for the illumination return circuit, make the illumination return circuit open work. When the mode selector switch 10 is rotated to the stop position, the entire lighting circuit is completely disconnected.
Optionally, a storage unit is arranged in the first control device 11, and the first preset value is stored in the storage unit and used for comparing with a value of a light intensity detection signal detected by the light intensity detection assembly to determine whether to turn on the lighting system of the photovoltaic power station.
Referring to fig. 4, the present embodiment further discloses a control method for the lighting box of the photovoltaic power station, including the following steps:
s110, acquiring a detection signal of the first light intensity detection component.
S210, judging whether the value of the detection signal is less than or equal to a first preset value.
And S310, controlling the conduction of the lighting loop of the photovoltaic power station through the first control device when the numerical value of the detection signal is smaller than or equal to a first preset numerical value.
When the first light intensity detection assembly comprises a first light intensity detection device, the value of a light intensity detection signal of the first light intensity detection device is compared with a first preset value to serve as the basis for turning on or off the photovoltaic power station lighting system.
Optionally, when the first light intensity detection assembly includes a plurality of first light intensity detection signals, in order to improve accuracy of the light intensity detection signals, an average value of values of the plurality of first light intensity detection signals may be compared with a first preset value, and the average value is used as a basis for turning on or off the photovoltaic power station lighting system.
Optionally, in order to further improve the accuracy of the control of the lighting loop of the photovoltaic power station and eliminate the influence caused by accidental shielding, the first control device 11 further includes a timing unit, and when the value of the light intensity detection signal of the first light intensity detection assembly is smaller than or equal to a first preset value, the timing unit starts timing. When the value of the light intensity detection signal of the first light intensity detection assembly is smaller than or equal to the first preset value and the duration of the first preset value is larger than the second preset value, the first control device 11 controls the conduction of the lighting loop of the photovoltaic power station and starts the lighting system. When the value of the light intensity detection signal of the first light intensity detection assembly is smaller than or equal to the first preset value, and the duration time of the light intensity detection signal of the first light intensity detection assembly is smaller than the second preset value, the situation is considered to be caused by accidental shielding of the first light intensity detection assembly, and the lighting system of the photovoltaic power station does not need to be started.
Optionally, in this embodiment, the lighting box of the photovoltaic power station further includes: a second control device and a mode switch. The mode selector switch is electrically connected with the first control device or the second control device and is electrically connected with the control power supply circuit breaker. The second control device is arranged in the photovoltaic power station lighting box and used for manually controlling the on/off of the photovoltaic power station lighting loop by a user. The mode switch can control the lighting loop of the photovoltaic power station to be automatically controlled by the first control device 11 according to the light intensity detection signal, and can also be used for manually operating the second control device by a user to manually select the on or off of the lighting loop. By setting the mode change-over switch, the control mode of the lighting box of the photovoltaic power station is expanded, operation and maintenance personnel can intervene on or off the lighting loop, and the use convenience of the lighting box of the photovoltaic power station is improved.
Referring to fig. 5, the present embodiment further provides a method for controlling a lighting box of a photovoltaic power station, for controlling the lighting box of the photovoltaic power station, including the following steps:
and S120, controlling the mode change-over switch to be connected with the second control device, so that the second control device is electrically connected with the power circuit device.
And S220, manually controlling the on or off of the lighting loop of the photovoltaic power station through a second control device.
The control mode can diversify the control of the lighting loop (or a plurality of lighting branches) of the photovoltaic power station, the flexible switching of the control mode is realized when manual intervention is needed, and the convenience of operation and maintenance personnel is improved.
Example two
Compared with the first embodiment, the second embodiment is different only in the position and connection manner of the light intensity detector 13.
When the photovoltaic power station scope is great, can divide into the work area of a plurality of difference with it, every work area is provided with solitary illumination branch road, and the detection of light intensity and the control of illumination branch road can be realized respectively to different work areas. The light intensity detection signal of the light intensity detector 13 is acquired by the first control device 11 to realize automatic control, and the mode switching switch can be switched to the second control module, so that operation and maintenance personnel can conveniently and respectively control the illumination branch circuits corresponding to the working areas, convenience in overhauling the equipment is improved, and the illumination system of the working area with sufficient light is closed, so that energy and cost are saved.
The light intensity detector 13 comprises a second light intensity detection assembly comprising a number of second light intensity detection devices. The plurality of second light intensity detection devices are electrically connected to the first control device 11, respectively.
Optionally, the plurality of second light intensity detection devices respectively correspond to a plurality of working areas of the photovoltaic power station, and detect light intensity of each working area. Preferably, the plurality of second light intensity detection devices correspond to the plurality of working areas one to one. The first control device 11 controls the on and off of the illumination branches of the corresponding working area according to the light intensity detection signal of each second light intensity detection device. The control mode can improve the control efficiency of the photovoltaic power station lighting system, reduce the cost and save the energy.
Optionally, the plurality of second light intensity detection devices may be electrically connected to the first control device 11 in a wired and/or wireless manner, so as to improve the reliability of the lighting system controlled by the lighting box of the photovoltaic power station.
Referring to fig. 6, the present embodiment further provides a method for controlling a lighting box of a photovoltaic power station, for controlling the lighting box of the photovoltaic power station, including the following steps:
and S130, acquiring detection signals of a plurality of second light intensity detection devices.
S230, determining whether the value of the detection signal of each second light intensity detecting device is less than or equal to a first preset value.
S330, when the value of the detection signal of any second light intensity detection device is smaller than or equal to a first preset value, the lighting branch of the photovoltaic power station working area corresponding to the second light intensity detection device is controlled to be conducted through the first control device.
According to the control method of the photovoltaic power station illumination box, the light intensity detection signals of a plurality of second light intensity detection devices arranged in different photovoltaic power station working areas are obtained in real time or according to the preset time interval, and whether the light intensity detection signals are smaller than or equal to the first preset value or not is judged one by one. And when any light intensity detection signal is less than or equal to a first preset value, controlling the conduction of the lighting branch in the corresponding working area. And when any light intensity detection signal is greater than a first preset value, controlling the lighting branch in the corresponding working area to be switched off. By the control mode, the situation that all the illumination branches of all the working areas of the photovoltaic power station are opened due to the fact that the light intensity of one or more working areas is lower than the requirement can be avoided; the light intensity of one or more working areas can be prevented from meeting the requirements, and the lighting branches of all the working areas of the whole photovoltaic power station are completely closed, so that the control precision of different working areas of the photovoltaic power station is improved, the use cost of the photovoltaic power station on a lighting system is reduced, the energy is saved, and great convenience is brought to maintenance of a header box, a battery panel and other equipment of the photovoltaic power station by operation and maintenance personnel.
The embodiment of the invention aims to protect a photovoltaic power station lighting box, which comprises: a light intensity detector and a first control device. The light intensity detector is electrically connected with the first control device, and the first control device acquires a light intensity detection signal of the light intensity detector and controls the on/off of the lighting loop of the photovoltaic power station according to the light intensity detection signal. The technical scheme of the embodiment of the invention has the following effects:
acquire photovoltaic power plant's ambient light intensity through the luminous intensity determine module, the illumination return circuit of automatic switch-on photovoltaic power plant when light intensity is not enough, self-closing illumination return circuit when light intensity is sufficient, the shortcoming of photovoltaic power plant lighting system because of season change to fortune dimension personnel's dependence and regional adaptability is poor among the prior art has been overcome, photovoltaic power plant lighting system's intelligent control level has been improved, the convenience to photovoltaic power plant collection flow box, panel and other equipment inspection and maintenance has been improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The utility model provides a photovoltaic power plant illumination case, includes the box, its characterized in that still includes: a light intensity detector and a first control device;
the light intensity detector is electrically connected with the first control device;
the first control device obtains a light intensity detection signal of the light intensity detector and controls the connection or disconnection of the lighting loop of the photovoltaic power station according to the light intensity detection signal.
2. The photovoltaic power plant lighting box of claim 1, wherein the light intensity detector comprises a first light intensity detection assembly;
the first light intensity detection assembly comprises a plurality of first light intensity detection devices arranged on the outer surface of the lighting box of the photovoltaic power station;
the plurality of first light intensity detection devices are respectively and electrically connected with the first control device.
3. The photovoltaic power plant lighting box of claim 2,
the plurality of first light sensation detection devices are respectively arranged on the top wall and/or the side wall of the outer surface of the lighting box of the photovoltaic power station.
4. The photovoltaic power plant lighting box of claim 2 or 3,
the lighting loop of the photovoltaic power station comprises a plurality of lighting branches, and the lighting branches correspond to a plurality of working areas of the photovoltaic power station respectively;
the first control device is electrically connected with the plurality of lighting branches and respectively controls the connection or disconnection of the plurality of lighting branches.
5. The photovoltaic power plant lighting box of claim 4,
the light intensity detector further comprises: a second light intensity detection component;
the second light intensity detection assembly comprises a plurality of second light intensity detection devices which are respectively arranged in a plurality of working areas of the photovoltaic power station;
and the first control device respectively controls the on or off of the illumination branches corresponding to the working areas according to the light intensity detection signals of the second light intensity detection devices.
6. The photovoltaic power plant lighting box of claim 5,
the plurality of second light intensity detection devices are respectively and electrically connected with the first control device in a wired mode and/or a wireless mode.
7. The photovoltaic power plant lighting box of any one of claims 1-6, further comprising: a mode switching switch and a second control device;
the mode selector switch is electrically connected with the first control device or the second control device and is electrically connected with a control power supply circuit breaker; the second control device is used for manually controlling the on or off of the lighting circuit of the photovoltaic power station;
the mode selector switch is used for switching the connection between the first control device or the second control device and the control power supply circuit breaker.
8. A photovoltaic power plant lighting box control method for controlling the photovoltaic power plant lighting box of any one of claims 1-3, comprising the steps of:
acquiring a detection signal of a light intensity detector;
judging whether the value of the detection signal is less than or equal to a first preset value or not;
and when the value of the detection signal is smaller than or equal to the first preset value, controlling the conduction of the lighting loop of the photovoltaic power station through a first control device.
9. A photovoltaic power plant lighting box control method for controlling the photovoltaic power plant lighting box of claim 5 or 6, comprising the steps of:
acquiring detection signals of a plurality of second light intensity detection devices;
judging whether the value of the detection signal of each second light intensity detection device is less than or equal to the first preset value or not;
and when the value of the detection signal of any one second light intensity detection device is smaller than or equal to a first preset value, controlling the conduction of the lighting branch of the photovoltaic power station working area corresponding to the second light intensity detection device through a first control device.
10. A photovoltaic power plant lighting box control method for controlling the photovoltaic power plant lighting box of claim 7, comprising the steps of:
the control mode switch is connected with a second control device, so that the second control device is electrically connected with the power supply circuit device;
and the second control device is used for manually controlling the on or off of the lighting loop of the photovoltaic power station.
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