Intelligent mixed supply control system of photovoltaic base station

Abstract

The utility model relates to an intelligent mixed supply control system of a photovoltaic base station, which comprises an oil engine rectifying machine frame, a mixed insertion rectifying machine frame and a main control machine frame, an oil engine power supply interface, an oil engine signal output interface and a direct current output interface a are arranged on a panel of the oil engine rectifying machine frame, and an air switch, a rectifying module and a battery pack are arranged in the oil engine rectifying machine frame; a commercial power supply interface and a direct current output interface b are arranged on a panel of the mixed insertion rectifier frame, and an air switch and a voltage reduction and stabilization module used for being connected with a photovoltaic device are arranged in the mixed insertion rectifier frame; an oil engine power supply interface, a mixed insertion power supply input interface and a load interface are arranged on the main control machine frame panel, the oil engine power supply interface is connected with the direct current output interface a, and the mixed insertion power supply input interface is connected with the direct current output interface b. The intelligent hybrid power supply control system for the photovoltaic base station realizes hybrid power supply access and control in power supply forms such as photovoltaic power, commercial power, a storage battery and external cooperation, and has the functions of field display and remote monitoring of power supply states and parameters.

Description

Technical Field

[0001] The utility model relates to the field of power supply technology and equipment, and particularly relates to a photovoltaic base station intelligent hybrid power supply control system. Background Art

[0002] With the wide popularization and application of the network, the construction and coverage requirements of communication base stations are constantly increasing. Correspondingly, in the suburbs, rural areas, and undeveloped areas with sparse population in the western region of our country, the power grid coverage and power supply quality are not perfect, but these areas have good lighting conditions. In order to ensure the coverage of the communication signal network, combined with the current situation of the power network and the excellent prospect of solar energy power generation, a new type of optoelectronic integrated energy cabinet that can combine mains power, solar power generation, and energy storage batteries for combined power generation is needed to provide perfect power supply for communication base stations in this area. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: combined with the current situation of the power network and the excellent prospect of solar energy power generation, to provide a photovoltaic base station intelligent hybrid power supply control system, which realizes the hybrid power supply access and control of power supply forms such as photovoltaic, mains power, storage battery, and external cooperation, and has the functions of on-site display and remote monitoring of power supply status and parameters, and is particularly suitable for equipment power supply applications in areas where the power grid coverage and power supply quality are not perfect but have good lighting conditions.

[0004] The photovoltaic base station intelligent hybrid power supply control system includes a diesel engine rectifier frame for connecting a diesel engine, a hybrid plug rectifier frame for connecting mains power and photovoltaic power, and a main control frame for switching the power supply mode. Among them, the panel of the diesel engine rectifier frame is provided with a diesel engine power supply interface, a diesel engine signal output interface, and a DC output interface a. Inside the diesel engine rectifier frame, there are an air switch, a rectification module, and a battery pack; the diesel engine power supply interface is connected to the DC output interface a through the air switch and the rectification module, and the output end of the battery pack is connected to the DC output interface a through the air switch; the panel of the hybrid plug rectifier frame is provided with a mains power supply interface and a DC output interface b. Inside the hybrid plug rectifier frame, there are an air switch and a buck-boost voltage stabilizing module for connecting photovoltaic power; the mains power supply interface is connected to the DC output interface b through the air switch and the rectification module, and the buck-boost voltage stabilizing module is connected to the DC output interface b through the air switch; the panel of the main control frame is provided with a diesel engine power supply input interface, a hybrid plug power supply input interface, and a load interface. The diesel engine power supply input interface is connected to the DC output interface a, and the hybrid plug power supply input interface is connected to the DC output interface b.

[0005] Optimally, the panel of the main control frame is further provided with a battery pack power supply interface, a standby power supply interface, and a pair of external cooperation access interfaces.

[0006] Further, a main control board, a power management module, and an air switch are arranged in the main control cabinet. The diesel generator power supply input interface, the mixed plug-in power supply input interface, the battery pack power supply interface, the backup power supply interface, and the external cooperation access interface are connected to the load interface through their respective corresponding air switches and power management modules. Each air switch in the diesel generator rectifier cabinet, the mixed plug-in rectifier cabinet, and the main control cabinet, and the power management module in the main control cabinet are in bidirectional communication connection with the main control board.

[0007] Further, a display and control area is also arranged on the panel of the main control cabinet. A display screen for displaying power supply parameters, control buttons for controlling the up and down page turning, return, and confirmation of the display content of the display screen, indicator lights for indicating power supply, alarm, fault, and network information, and sensor interfaces, network interfaces, USB interfaces, and antenna interfaces for signal connection with the internal main control board are arranged on the display and control area.

[0008] Specifically, the air switch includes a 125A×3 pluggable air switch arranged on the diesel generator power supply interface and the mains power supply interface, a 125A×4 pluggable air switch arranged on the DC output interface a and the DC output interface b, and a 125A×16 pluggable air switch arranged on the load interface.

[0009] The intelligent hybrid power supply control system for a photovoltaic base station of the present invention combines the current situation of the power network and the excellent prospect of solar power generation, realizes the hybrid power supply access and control of power supply forms such as photovoltaic, mains power, battery, and external cooperation, and has the functions of on-site display and remote monitoring of the power supply state and parameters. It is particularly suitable for equipment power supply applications in areas with imperfect power network coverage and power supply quality but good lighting conditions. Description of the Drawings

[0010] The following further describes the intelligent hybrid power supply control system for a photovoltaic base station of the present invention with reference to the drawings:

[0011] Figure 1 is a three-dimensional structure schematic diagram of the intelligent hybrid power supply control system for a photovoltaic base station;

[0012] Figure 2 is a logic structure and connection principle block diagram of the intelligent hybrid power supply control system for a photovoltaic base station.

[0013] In the figure:

[0014] 1 - diesel generator rectifier cabinet, 2 - mixed plug-in rectifier cabinet, 3 - main control cabinet, 4 - air switch, 5 - rectification module, 6 - battery pack, 7 - buck and voltage stabilization module;

[0015] 11 - Generator power supply interface, 12 - Generator signal output interface, 13 - DC output interface a; 21 - Mains power supply interface, 22 - DC output interface b; 31 - Generator power supply input interface, 32 - Mixed plug-in power supply input interface, 33 - Load interface, 34 - Battery pack power supply interface, 35 - Backup power supply interface, 36 - External cooperation access interface;

[0016] 300 - Main control board, 400 - Power management module; 310 - Display and control area, 311 - Display screen, 312 - Control buttons, 313 - Indicator lights, 314 - Sensor interface, 315 - Network port, 316 - USB interface, 317 - Antenna interface. Detailed implementation manner

[0017] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0019] The following uses specific embodiments to further describe the technical solutions of the present utility model, but the protection scope of the present utility model is not limited to the following embodiments.

[0020] Embodiment 1: As Figure 1 、 2As shown in the figure, the intelligent hybrid power supply control system of this photovoltaic base station includes a diesel generator rectifier frame 1 for connecting a diesel generator, a hybrid plug rectifier frame 2 for connecting the commercial power and photovoltaic power, and a main control frame 3 for switching the power supply mode. Among them, on the panel of the diesel generator rectifier frame 1, there are a diesel generator power supply interface 11, a diesel generator signal output interface 12, and a DC output interface a13. Inside the diesel generator rectifier frame 1, there are an air switch 4, a rectification module 5, and a battery pack 6. The diesel generator power supply interface 11 is connected to the DC output interface a13 through the air switch 4 and the rectification module 5. The output end of the battery pack is connected to the DC output interface a13 through the air switch 4. On the panel of the hybrid plug rectifier frame 2, there are a commercial power supply interface 21 and a DC output interface b22. Inside the hybrid plug rectifier frame 2, there are an air switch 4 and a step-down and voltage-stabilizing module 7 for connecting photovoltaic power. The commercial power supply interface 21 is connected to the DC output interface b22 through the air switch 4 and the rectification module 5. The step-down and voltage-stabilizing module 7 is connected to the DC output interface b22 through the air switch 4. On the panel of the main control frame 3, there are a diesel generator power supply input interface 31, a hybrid plug power supply input interface 32, and a load interface 33. The diesel generator power supply input interface 31 is connected to the DC output interface a13. The hybrid plug power supply input interface 32 is connected to the DC output interface b22.

[0021] Embodiment 2: In the intelligent hybrid power supply control system of this photovoltaic base station, a battery pack power supply interface 34, a standby power supply interface 35, and a pair of external cooperation access interfaces 36 are also provided on the panel of the main control frame 3. They are used to connect an external battery, a standby power supply, and external cooperation commercial power or a generator respectively to expand the form of power sources that can be accessed. The main control frame 3 is internally provided with a main control board 300, a power management module 400, and an air switch 4. The generator power supply input interface 31, the mixed plug power supply input interface 32, the battery pack power supply interface 34, the standby power supply interface 35, and the external cooperation access interface 36 are connected to the load interface 33 after passing through their respective corresponding air switches 4 and power management modules 400; each air switch 4 in the generator rectifier frame 1, the mixed plug rectifier frame 2, and the main control frame 3, as well as the power management module 400 in the main control frame 3, are bidirectionally communicatively connected to the main control board 300. Each serial port of the microprocessor on the main control board is connected to each air switch through a signal line. While controlling the opening and closing of the air switches of each power supply branch, the voltage, current signals of each power supply branch, and parameters such as the power supply power on the power management module are collected. A display and control area 310 is also provided on the panel of the main control frame 3. A display screen 311 for displaying power supply parameters, control buttons 312 for controlling the up and down page turning, return, and confirmation of the display content of the display screen, indicator lights 313 for indicating power supply, alarm, fault, and network information, and a sensor interface 314, a network port 315, a USB interface 316, and an antenna interface 317 for signal connection with the internal main control board 300 are provided on the display and control area 310. The sensor interface is used to connect temperature, humidity, and other environmental sensors, enabling the collection of device operating environment parameters. The network port is used for remote data transmission. The USB interface can be used to upgrade the offline main control system of the device on-site and input program adjustments. The antenna interface is used to externally connect a gain antenna to achieve stable wireless data transmission. The remaining structures and components are as described in Embodiment 1 and will not be described repeatedly.

[0022] Embodiment 3: In the intelligent hybrid power supply control system of this photovoltaic base station, the air switch 4 includes a 125A×3 plug-in type air switch provided on the generator power supply interface 11 and the commercial power supply interface 21, a 125A×4 plug-in type air switch provided on the DC output interface a13 and the DC output interface b22, and a 125A×16 plug-in type air switch provided on the load interface 33. The remaining structures and components are as described in Embodiment 1 and will not be described repeatedly.

[0023] During operation: The three-phase four-wire air switch of the generator rectifier frame is connected to the three-phase AC power supply of the generator through the generator power supply interface. After being converted into DC by the rectification module, it is output from the DC output interface a to the generator power supply interface of the main control frame. After passing through the 6P air switch, the battery pack is output from the DC output interface a to the generator power supply input interface of the main control frame. The 3P air switch of the hybrid plug-in rectifier frame is connected to the commercial power through the commercial power supply interface. After being converted into DC by the rectification module, it is output from the DC output interface b to the hybrid power supply input interface of the main control frame. The buck and voltage stabilizing module is externally connected to the photovoltaic power supply. After processing the input photovoltaic DC power, it is output from the DC output interface b to the hybrid power supply input interface of the main control frame through the 4P air switch. The power supply sequence is primary photovoltaic power supply, secondary commercial power supply, tertiary battery pack power supply, and quaternary generator power supply. The power supply at each level is automatically switched by the microprocessor in the main control frame through the pre-stored logic by controlling the branch air switches at each level, realizing intelligent management of energy conservation and emission reduction.

[0024] This intelligent hybrid power supply control system for photovoltaic base stations combines the current situation of the power grid and the excellent prospects of solar power generation, realizes the hybrid power supply access and control of power sources such as photovoltaic, commercial power, storage batteries, and external cooperation, and has the functions of on-site display and remote monitoring of the power supply status and parameters. It is especially suitable for equipment power supply applications in areas with imperfect power grid coverage and power supply quality but good lighting conditions.

[0025] The above description shows the main features, basic principles, and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments or examples, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the above embodiments or examples should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A photovoltaic base station intelligent hybrid power supply control system, characterized in that: It includes a diesel engine rectifier frame (1) for connecting a diesel engine, a mixed plug rectifier frame (2) for connecting the commercial power supply and photovoltaic power, and a main control frame (3) for switching the power supply mode. Among them, on the panel of the diesel engine rectifier frame (1), there are a diesel engine power supply interface (11), a diesel engine signal output interface (12), and a DC output interface a (13). Inside the diesel engine rectifier frame (1), there are an air switch (4), a rectification module (5), and a battery pack (6); the diesel engine power supply interface (11) is connected to the DC output interface a (13) through the air switch (4) and the rectification module (5), and the output end of the battery pack is connected to the DC output interface a (13) through the air switch (4); on the panel of the mixed plug rectifier frame (2), there are a commercial power supply interface (21) and a DC output interface b (22). Inside the mixed plug rectifier frame (2), there are an air switch (4) and a step-down and voltage-stabilizing module (7) for connecting photovoltaic power; the commercial power supply interface (21) is connected to the DC output interface b (22) through the air switch (4) and the rectification module (5), and the step-down and voltage-stabilizing module (7) is connected to the DC output interface b (22) through the air switch (4); on the panel of the main control frame (3), there are a diesel engine power supply input interface (31), a mixed plug power supply input interface (32), and a load interface (33). The diesel engine power supply input interface (31) is connected to the DC output interface a (13), and the mixed plug power supply input interface (32) is connected to the DC output interface b (22).

2. The intelligent hybrid power supply control system for a photovoltaic base station according to claim 1, wherein: On the panel of the main control frame (3), there are also a battery pack power supply interface (34), a standby power supply interface (35), and a pair of external cooperation access interfaces (36).

3. The intelligent hybrid power supply control system for a photovoltaic base station according to claim 2, wherein: Inside the main control frame (3), there are a main control board (300), a power management module (400), and an air switch (4). The diesel engine power supply input interface (31), the mixed plug power supply input interface (32), as well as the battery pack power supply interface (34), the standby power supply interface (35), and the external cooperation access interfaces (36) are connected to the load interface (33) through their respective corresponding air switches (4) and power management modules (400); the air switches (4) in the diesel engine rectifier frame (1), the mixed plug rectifier frame (2), and the main control frame (3), as well as the power management module (400) in the main control frame (3) are in bidirectional communication connection with the main control board (300).

4. The intelligent hybrid power supply control system for a photovoltaic base station according to claim 3, wherein: On the panel of the main control frame (3), there is also a display and control area (310). On this display and control area (310), there are a display screen (311) for displaying power supply parameters, control buttons (312) for controlling the up and down page turning, return, and confirmation of the display content of the display screen, indicator lights (313) for indicating power supply, alarm, fault, and network information, as well as a sensor interface (314), a network port (315), a USB interface (316), and an antenna interface (317) for signal connection with the internal main control board (300).

5. The intelligent hybrid power supply control system for a photovoltaic base station according to claim 4, wherein: The air switch (4) includes a 125A×3 plug-in type air switch provided on the generator power supply interface (11) and the mains power supply interface (21), a 125A×4 plug-in type air switch provided on the DC output interface a (13) and the DC output interface b (22), and a 125A×16 plug-in type air switch provided on the load interface (33).

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