CN114430195A - Power supply scheduling circuit of communication base station - Google Patents
Power supply scheduling circuit of communication base station Download PDFInfo
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- CN114430195A CN114430195A CN202210104793.6A CN202210104793A CN114430195A CN 114430195 A CN114430195 A CN 114430195A CN 202210104793 A CN202210104793 A CN 202210104793A CN 114430195 A CN114430195 A CN 114430195A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/14—Balancing the load in a network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
Abstract
The invention provides a power supply scheduling circuit of a communication base station, which comprises a photovoltaic base station power module, a battery power module, a high-voltage direct-current power module, a control module and a communication base station module, wherein the control module is respectively connected with the output end of the high-voltage direct-current power module and the output end of the photovoltaic base station power module, and meanwhile, the control module is respectively connected with the input end of the battery power module and the input end of the communication base station module; the control module is used for switching off the high-voltage direct-current power supply module under the condition that the output power of the photovoltaic base station power supply module is larger than that of the communication base station module, or switching on the high-voltage direct-current power supply module or the battery power supply module under the condition that the output power of the photovoltaic base station power supply module is smaller than that of the communication base station module. According to the invention, the control module controls the communication base station module to be respectively connected with or disconnected from the photovoltaic base station power supply module, the battery power supply module and the high-voltage direct-current power supply module, so that the electric energy loss in the power dispatching process is reduced.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a power supply scheduling circuit of a communication base station.
Background
With the development of communication technology, 5G (5th-Generation, fifth Generation mobile communication technology) has become a new market growth point in the communication field. The coverage area of the 5G communication base stations is small, and the distance between the constructed communication base stations is shortened. Along with the construction of the 5G base station of each operator, the electric load of communication base station increases, mainly through energy storage battery electricity storage when the price of electricity is in the low ebb at present, put some to reduce the operation cost when the peak. However, in the related art, a method of performing power scheduling mainly by using a centralized power supply and a centralized power storage mode needs to perform multiple conversions when an alternating current uninterruptible power supply or a 270V direct current remote supply system is used for energy storage or discharge, and the electric energy loss is large; in addition, the power of the communication base station also changes with the change of the traffic volume, and the adoption of the centralized power supply and the centralized power storage mode also causes unnecessary loss of electric energy.
Therefore, the problem that the electric energy loss of the communication base station is large in the power dispatching process exists in the prior art.
Disclosure of Invention
The embodiment of the invention provides a power supply scheduling circuit of a communication base station module, which aims to solve the problem that the electric energy loss of a communication base station is large in the power scheduling process in the prior art.
In order to solve the above problems, the present invention provides a power supply scheduling circuit of a communication base station, comprising a photovoltaic base station power module, a battery power module, a high voltage dc power module, a control module and a communication base station module,
the first input end of the control module is connected with the output end of the high-voltage direct-current power supply module, the input end of the high-voltage direct-current power supply module is connected with a mains supply, and the first signal end of the control module is connected with the mains supply;
the second input end of the control module is connected with the output end of the photovoltaic base station power supply module, the first output end of the control module is connected with the first input end of the communication base station module, the second signal end of the control module is connected with the signal end of the communication base station module, and the second output end of the control module is connected with the input end of the battery power supply module;
the signal end of the battery power supply module is connected with the third signal end of the control module, and the output end of the battery power supply module is connected with the second input end of the communication base station module;
the control module is used for disconnecting the high-voltage direct-current power supply module under the condition that the output power of the photovoltaic base station power supply module is larger than that of the communication base station module, or connecting the high-voltage direct-current power supply module or the battery power supply module under the condition that the output power of the photovoltaic base station power supply module is smaller than that of the communication base station module.
As an alternative embodiment, the control module includes a voltage stabilizing unit and an algorithm unit, wherein,
the output end of the photovoltaic base station power supply module is connected with the input end of the voltage stabilizing unit, and the output end of the voltage stabilizing unit is connected with the first input end of the communication base station module;
the first input end of the algorithm unit is connected with the output end of the photovoltaic base station, the first signal end of the algorithm unit is connected with the signal end of the communication base station, and the second signal end of the algorithm unit is connected with the signal end of the battery power supply module.
As an optional implementation manner, the arithmetic unit is used for acquiring the remaining capacity and the output voltage of the battery power supply module;
under the condition that the power generation power of the photovoltaic base station power module is greater than the load power of the communication base station module, the photovoltaic base station power module supplies power to the battery power module;
and when the residual electric quantity of the battery power supply module is full, the generated power of the photovoltaic base station power supply module is reduced.
As an optional implementation manner, the control module further includes a first switch unit and a detection unit, wherein,
the output end of the high-voltage direct current power supply module is connected with the input end of the first switch unit, the output end of the first switch unit is connected with the first input end of the communication base station module, and the output end of the high-voltage direct current power supply module is also connected with the second input end of the algorithm unit;
and the signal end of the detection unit is connected with the commercial power, and the output end of the detection unit is connected with the third input end of the algorithm unit.
As an optional implementation manner, the algorithm unit is further configured to obtain power generation power of the photovoltaic base station power module, load power of the communication base station module, and electricity price data of the utility power, where the electricity price data of the utility power is one of a low valley, a flat section, or a high peak;
under the condition that the power generation power of the photovoltaic base station power module is larger than the load power of the communication base station module, the first switch unit keeps an off state;
and under the conditions that the generated power of the photovoltaic base station power module is smaller than the load power of the communication base station module and the electricity price data of the commercial power is a low valley or a flat section, the first switch unit keeps a connected state.
As an optional implementation manner, the control module further comprises a second switch unit, wherein,
the input end of the second switch unit is connected with the output end of the battery power supply module, and the output end of the second switch unit is connected with the second input end of the communication base station module.
As an optional implementation manner, when the generated power of the photovoltaic base station power module is smaller than the load power of the communication base station module, the electricity price data of the commercial power is a peak, and the remaining power of the battery power supply is greater than a set standby power consumption, the first switch unit is turned off, and the second switch unit is turned on;
the first switch unit is connected under the condition that the power generation power of the photovoltaic base station power module is smaller than the load power of the communication base station module, the electricity price data of the commercial power is a peak, and the residual electric quantity of the battery power supply is smaller than the set standby electric quantity;
and under the condition that the photovoltaic base station power module and the high-voltage direct-current power module cannot supply power, the second switch unit is communicated.
As an alternative embodiment, in the case of the second switching unit being switched on, the unnecessary ac load devices of the communication base station module are switched off.
As an optional implementation manner, the load power of the communication base station module is the load power of the day before the corresponding time;
and under the condition that the load power of the day before the corresponding time is abnormal, the load power of the communication base station module is the load power of the two days before the corresponding time.
As an optional implementation manner, the control unit is further configured to acquire time data of deep discharge of the battery power supply module;
under the condition that the time data of the deep discharge is larger than a set threshold value, the first switch unit is disconnected, and the second switch unit is connected;
and under the condition that the output voltage of the battery power supply module is reduced to a preset deep discharge voltage value, the second switch unit is switched off.
One of the above technical solutions has the following advantages or beneficial effects:
in the embodiment of the invention, the communication base station module is controlled by the control module to be respectively connected or disconnected with the photovoltaic base station power module, the battery power module and the high-voltage direct-current power module, an alternating-current uninterrupted power supply or a 270V direct-current remote supply system is not required for storing energy, the alternating-current and direct-current conversion times are reduced, and the electric energy loss of the communication base station in the power dispatching process is further reduced.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic diagram of a power supply scheduling circuit of a communication base station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power supply scheduling circuit of another communication base station according to an embodiment of the present invention;
fig. 3 is a schematic diagram of electricity price data of the commercial power provided by the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a power supply scheduling circuit of a communication base station according to an embodiment of the present invention, and as shown in fig. 1, the present invention provides a power supply scheduling circuit of a communication base station, which is characterized by comprising a photovoltaic base station power module 10, a battery power module 20, a high-voltage dc power module 30, a control module 40 and a communication base station module 50, wherein,
a first input end of the control module 40 is connected with an output end of the high-voltage direct-current power supply module 30, an input end of the high-voltage direct-current power supply module 30 is connected with a mains supply, and a first signal end of the control module 40 is connected with the mains supply;
a second input end of the control module 40 is connected with an output end of the photovoltaic base station power module 10, a first output end of the control module 40 is connected with a first input end of the communication base station module 50, a second signal end of the control module 40 is connected with a signal end of the communication base station module 50, and a second output end of the control module 40 is connected with an input end of the battery power module 20;
the signal end of the battery power supply module 20 is connected to the third signal end of the control module 40, and the output end of the battery power supply module 20 is connected to the second input end of the communication base station module 50;
the control module 40 is used for switching off the high-voltage direct-current power supply module 30 when the output power of the photovoltaic base station power supply module 10 is larger than that of the communication base station module 50, or switching on the high-voltage direct-current power supply module 30 or the battery power supply module 20 when the output power of the photovoltaic base station power supply module 10 is smaller than that of the communication base station module 50.
In this embodiment, the input end of the control module 40 is connected to the output end of the photovoltaic base station power module 10, the output end of the battery power module 20 is connected to the output end of the high-voltage direct-current power module 30, and the output end of the control module 40 is connected to the input end of the communication base station module 50, so that the control module 40 controls the photovoltaic base station power module 10, the battery power module 20, and the high-voltage direct-current power module 30 to be connected to or disconnected from the communication base station module 50, and it is not necessary to use an ac uninterruptible power supply or a 270V dc remote supply system to store energy, thereby reducing the number of times of ac/dc conversion, and further reducing the electric energy loss of the communication base station in the power dispatching process.
The power supply scheduling circuit supplies power by adopting the photovoltaic base station power module 10 and the high-voltage direct-current power module 30, and can ensure the reliability of power supply scheduling. The photovoltaic base station power module 10 and the high-voltage direct-current power module 30 adopt 750V direct current at the same time, and the battery power module 20 also adopts 750V high-voltage input and output, so that fission can be reduced in reply, long-distance reliable transmission is guaranteed, and loss of the battery power module 20 in power supply to the communication base station module 50 is reduced. The communication base station module 50 is disposed at a far end, generally has a voltage of 48V, and needs to be reduced by connecting a dc voltage reduction device for reuse. In addition, the communication base station module 50 includes a plurality of communication base stations, and the high voltage transmission can save the supporting equipment at the far end, and reduce the cost.
In addition, the control module 40 charges the battery power module 20 through the high-voltage dc power module 30 or the photovoltaic base station power module 10, or controls the battery power module 20 to directly supply power to the communication base station module 50, and stores and releases energy through the battery power module 20, so as to implement power supply scheduling while reducing the number of times of ac/dc conversion.
As an alternative embodiment, the control module 40 comprises a voltage stabilizing unit 401 and an algorithm unit 402, wherein,
the output end of the photovoltaic base station power module 10 is connected with the input end of the voltage stabilizing unit 401, and the output end of the voltage stabilizing unit 401 is connected with the first input end of the communication base station module 50;
a first input end of the algorithm unit 402 is connected to an output end of the photovoltaic base station, a first signal end of the algorithm unit 402 is connected to a signal end of the communication base station, and a second signal end of the algorithm unit 402 is connected to a signal end of the battery power module 20.
In this embodiment, the photovoltaic base station power module 10 supplies power to the communication base station module 50 through the voltage stabilizing unit 401 and the algorithm unit 402. The voltage stabilizing unit 401 is configured to maintain an output voltage, and when the generated power of the photovoltaic base station power module 10 fluctuates and the voltage at the input end of the voltage stabilizing unit 401 changes, the voltage at the first output end of the voltage stabilizing unit 401 can be kept stable, so as to avoid the control module 40 or the communication base station module 50 from being damaged due to voltage fluctuation.
In addition, a second output end of the voltage stabilizing unit 401 is connected to a first input end of the algorithm unit 402, so that the algorithm unit 402 can obtain the generated power information of the photovoltaic base station power module 10, and the algorithm unit 402 can perform power supply scheduling according to the generated power of the photovoltaic base station power module 10.
As an alternative embodiment, the algorithm unit 402 is used to obtain the remaining capacity and output voltage of the battery power module 20;
under the condition that the power generation power of the photovoltaic base station power module 10 is greater than the load power of the communication base station module 50, the photovoltaic base station power module 10 supplies power to the battery power module 20;
when the remaining capacity of the battery power supply module 20 is full, the generated power of the photovoltaic base station power supply module 10 decreases.
In this embodiment, when the generated power of the photovoltaic base station power module 10 is greater than the load power of the communication base station module 50, the photovoltaic base station power module 10 charges the battery power module 20 to store excess energy, so that when the photovoltaic base station power module 10 cannot supply power to the communication base station module 50, the battery power module 20 is used to supply power to the communication base station module 50, and power supply scheduling is completed.
The battery power module 20 may be a high-power storage battery, such as a lithium iron phosphate battery, and has a characteristic of high cycle charge and discharge frequency, so that the power generation efficiency of the photovoltaic base station power module 10 and the peak clipping and valley filling efficiency of the commercial power are maximized.
When the remaining capacity of the battery power supply module 20 is fully charged, the generated power of the photovoltaic base station power supply module 10 is reduced to approach the load power of the communication base station module 50, thereby preventing grid connection from impacting the grid.
As an alternative embodiment, the control module 40 further comprises a first switch unit 403 and a detection unit 404, wherein,
the output end of the high-voltage direct current power supply module 30 is connected to the input end of the first switch unit 403, the output end of the first switch unit 403 is connected to the first input end of the communication base station module 50, and the output end of the high-voltage direct current power supply module 30 is also connected to the second input end of the algorithm unit 402;
the signal terminal of the detection unit 404 is connected to the utility power, and the output terminal of the detection unit 404 is connected to the third input terminal of the algorithm unit 402.
In this embodiment, the first switch unit 403 and the detection unit 404 can obtain information of the high-voltage dc power supply module 30 and the commercial power connected to the high-voltage dc power supply module 30, and the first switch unit 403 is turned off and on to disconnect or connect the high-voltage dc power supply module 30.
The input end of the detection unit 404 is connected to the mains supply, and can detect the power supply condition of the mains supply, and the first switch unit 403 is turned off when the mains supply is abnormal, so as to prevent damage to the control module 40 or the power supply scheduling circuit.
As an optional embodiment, the algorithm unit 402 is further configured to obtain the generated power of the photovoltaic base station power module 10, the load power of the communication base station module 50, and the electricity price data of the utility power, where the electricity price data of the utility power is one of a valley, a flat section, or a peak;
in the case where the generated power of the photovoltaic base station power module 10 is greater than the load power of the communication base station module 50, the first switching unit 403 remains in the off state;
when the generated power of the photovoltaic base station power module 10 is smaller than the load power of the communication base station module 50 and the electricity price data of the utility power is a low valley or a flat section, the first switch unit 403 keeps a connected state.
In this embodiment, the photovoltaic base station power module 10 and the high-voltage dc power module 30 are used as power supplies to supply power to the communication base station module 50, and stable power supply to the communication base station is realized by switching on or off the first switch unit 403.
The photovoltaic base station power module 10 can reduce the pollution while reducing the cost as clean energy, but because the generated power of the photovoltaic base station power module 10 is affected by the illumination intensity, fluctuation exists in different time periods, and the high-voltage direct-current power module 30 is required to supplement the pollution. Therefore, the generated power of the photovoltaic base station power module 10 is obtained by connecting the algorithm unit 402 and the voltage stabilization unit 401, when the generated power of the photovoltaic base station power module 10 is greater than the load power of the communication base station module 50, the first switch unit 403 keeps an off state, and when the generated power of the photovoltaic base station power module 10 is less than the load power of the communication base station module 50 and the electricity price data of the utility power is a low valley or a flat section, the first switch unit 403 keeps an on state, so that the high-voltage direct-current power module 30 serves as a supplement to maintain the stable output of the power supply scheduling circuit.
As shown in fig. 3, fig. 3 is a schematic diagram of electricity price data of the utility power provided by the embodiment of the present invention, and when the time period when the utility power is in the valley is at night, the power generation power of the photovoltaic base station power module 10 is in the lowest state, and at this time, the high-voltage direct-current power module 30 connected with the utility power is directly used for supplying power; under the condition that the utility power price is the peak, the illumination intensity is higher this moment, and photovoltaic base station power module 10 can directly supply power to communication base station module 50.
The cost of the electricity price data of the commercial power is lower than that of the photovoltaic base station power module 10 under the condition of low valley or flat section, the power generation power of the photovoltaic base station power module 10 is lower than that of the communication base station module 50, and the electricity price data of the commercial power can directly use the high-voltage direct-current power module 30 connected with the commercial power to directly supply power to the communication base station module 50 under the condition of low valley or flat section.
As an alternative embodiment, the control module 40 further comprises a second switching unit 201, wherein,
an input end of the second switch unit 201 is connected to an output end of the battery power supply module 20, and an output end of the second switch unit 201 is connected to a second input end of the communication base station module 50.
In the present embodiment, the battery power supply module 20 supplies or stops power to the communication base station module 50 by turning off or on the second switch unit 201.
As an optional implementation manner, in the case that the generated power of the photovoltaic base station power module 10 is less than the load power of the communication base station module 50, the electricity price data of the utility power is a peak, and the remaining power of the battery power is greater than the set standby power, the first switch unit 403 is turned off, and the second switch unit 201 is turned on;
under the conditions that the power generation power of the photovoltaic base station power module 10 is smaller than the load power of the communication base station module 50, the electricity price data of the commercial power is a peak, and the remaining electric quantity of the battery power supply is smaller than the set standby electric quantity, the first switch unit 403 is connected;
under the condition that the photovoltaic base station power module 10 and the high-voltage direct-current power module 30 cannot supply power, the second switch unit 201 is connected.
In the present embodiment, by turning off and on the second switch unit 201, power supply or charging of the battery power supply module 20 is realized while stable power supply from the power supply scheduling circuit to the communication base station module 50 is maintained. In the case where the electricity rate data of the commercial power is a peak, the second switching unit 201 needs to be connected or disconnected according to the remaining capacity of the battery power module 20.
In this case, no matter the battery power module 20 is in a charging or power supplying state, it is required that the remaining power of the battery power module 20 is not less than the set standby power.
The standby power amount usually set by the battery power module 20 is the power amount used by the communication base station module 50 for three hours, so that the situation that the battery power module 20 cannot supply power to the communication base station module 50 when neither the photovoltaic base station power module 10 nor the high-voltage direct-current power module 30 can supply power is prevented.
As an alternative embodiment, in the case where the second switch unit 201 is turned on, the unnecessary ac load devices of the communication base station module 50 are turned off.
In this embodiment, the battery power supply module 20 supplies power to the communication base station module 50, and the power used by the battery power supply module 20 in design only satisfies the power supply of the necessary dc load devices of the communication base station module 50 but cannot satisfy the power supply of the unnecessary ac load devices, so it is only necessary to maintain the basic functions of the communication base station module 50, that is, the normal operation of the necessary dc load devices of the communication base station module 50, and to turn off the unnecessary ac load devices of the communication base station module 50.
As an alternative embodiment, the load power of the communication base station module 50 is the load power of the previous day corresponding to the time;
in the case where there is an abnormality in the load power of the day before the corresponding time, the load power of the communication base station module 50 is the load power of the two days before the corresponding time.
In the present embodiment, since the communication base station module 50 is installed at a remote location and it is difficult to obtain the actual load power of the communication base station module 50, it is necessary to use the load power of the previous day as a reference. If the load power of the previous day causes data abnormality due to abnormality such as power failure, the load power of the previous two days needs to be used as a reference.
The load power is divided into 24 time periods by time, and the power supply scheduling circuit automatically records the load power of different time periods of each day corresponding to the time of the electricity price data of the commercial power.
In addition, since the load power of the communication base station module 50 varies, the standby power of the battery power module 20 also needs to be adjusted accordingly to satisfy the three-hour usage of the communication base station module 50.
As an optional embodiment, the control unit is further configured to obtain time data of deep discharge of the battery power supply module 20;
when the time data of the deep discharge is larger than the set threshold, the first switch unit 403 is turned off, and the second switch unit 201 is turned on;
in the case where the output voltage of the battery power module 20 drops to a preset deep discharge voltage value, the second switching unit 201 is turned off.
In the present embodiment, the capacity of the battery power module 20 is reduced with the use time, and it is necessary to check the actual capacity of the battery power module 20. In the present embodiment, the capacity of the battery is calculated based on the deep discharge of the battery power module 20, and when the battery power module 20 is in the deep discharge, it is considered that the electric quantity of the battery power module 20 is exhausted, and the actual capacity of the battery power module 20 is determined based on the calculated capacity.
When the battery power module 20 exceeds the set threshold and is not deeply discharged, the actual capacity of the battery power module 20 cannot be confirmed, so that a hidden danger exists in power supply, and the electric quantity of the battery power module 20 needs to be confirmed through active discharging. At this time, the first switch unit 403 is turned off, the second switch unit 201 is turned on, the battery power supply module 20 supplies power to the communication base station module 50, and the remaining capacity of the battery power supply module 20 is calculated from the power supply time, the power supply voltage, and the power supply current.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A power supply scheduling circuit of a communication base station is characterized by comprising a photovoltaic base station power supply module, a battery power supply module, a high-voltage direct-current power supply module, a control module and a communication base station module,
the first input end of the control module is connected with the output end of the high-voltage direct-current power supply module, the input end of the high-voltage direct-current power supply module is connected with a mains supply, and the first signal end of the control module is connected with the mains supply;
the second input end of the control module is connected with the output end of the photovoltaic base station power supply module, the first output end of the control module is connected with the first input end of the communication base station module, the second signal end of the control module is connected with the signal end of the communication base station module, and the second output end of the control module is connected with the input end of the battery power supply module;
the signal end of the battery power supply module is connected with the third signal end of the control module, and the output end of the battery power supply module is connected with the second input end of the communication base station module;
the control module is used for switching off the high-voltage direct-current power supply module under the condition that the output power of the photovoltaic base station power supply module is larger than that of the communication base station module, or switching on the high-voltage direct-current power supply module or the battery power supply module under the condition that the output power of the photovoltaic base station power supply module is smaller than that of the communication base station module.
2. The power supply scheduling circuit of claim 1, wherein the control module comprises a voltage stabilization unit and an algorithm unit, wherein,
the output end of the photovoltaic base station power supply module is connected with the input end of the voltage stabilizing unit, and the output end of the voltage stabilizing unit is connected with the first input end of the communication base station module;
the first input end of the algorithm unit is connected with the output end of the photovoltaic base station, the first signal end of the algorithm unit is connected with the signal end of the communication base station, and the second signal end of the algorithm unit is connected with the signal end of the battery power supply module.
3. The power supply scheduling circuit of claim 2, wherein the algorithm unit is configured to obtain a remaining power and an output voltage of the battery power module;
under the condition that the power generation power of the photovoltaic base station power module is greater than the load power of the communication base station module, the photovoltaic base station power module supplies power to the battery power module;
and when the residual electric quantity of the battery power supply module is full, the generated power of the photovoltaic base station power supply module is reduced.
4. The power supply scheduling circuit of claim 3, wherein the control module further comprises a first switching unit and a detection unit, wherein,
the output end of the high-voltage direct current power supply module is connected with the input end of the first switch unit, the output end of the first switch unit is connected with the first input end of the communication base station module, and the output end of the high-voltage direct current power supply module is also connected with the second input end of the algorithm unit;
and the signal end of the detection unit is connected with the commercial power, and the output end of the detection unit is connected with the third input end of the algorithm unit.
5. The power supply scheduling circuit of claim 4, wherein the algorithm unit is further configured to obtain the generated power of the photovoltaic base station power module, the load power of the communication base station module, and the electricity price data of the utility power, wherein the electricity price data of the utility power is one of a valley, a flat section, or a peak;
under the condition that the power generation power of the photovoltaic base station power module is larger than the load power of the communication base station module, the first switch unit keeps an off state;
and under the conditions that the generated power of the photovoltaic base station power module is smaller than the load power of the communication base station module and the electricity price data of the commercial power is a low valley or a flat section, the first switch unit keeps a connected state.
6. The power supply scheduling circuit of claim 5, wherein the control module further comprises a second switching unit, wherein,
the input end of the second switch unit is connected with the output end of the battery power supply module, and the output end of the second switch unit is connected with the second input end of the communication base station module.
7. The power supply scheduling circuit of claim 6, wherein when the generated power of the photovoltaic base station power module is smaller than the load power of the communication base station module, the electricity price data of the utility power is a peak, and the remaining power of the battery power supply is greater than a set standby power, the first switch unit is turned off, and the second switch unit is turned on;
under the conditions that the power generation power of the photovoltaic base station power module is smaller than the load power of the communication base station module, the electricity price data of the commercial power is a peak, and the residual electric quantity of the battery power supply is smaller than the set standby electric quantity, the first switch unit is communicated;
and under the condition that the photovoltaic base station power module and the high-voltage direct-current power module cannot supply power, the second switch unit is communicated.
8. The power supply scheduling circuit of claim 7, wherein in the case where the second switching unit is turned on, unnecessary alternating current load devices of the communication base station module are turned off.
9. The power supply scheduling circuit of claim 7, wherein the load power of the communication base station module is a load power of a day before a corresponding time;
and under the condition that the load power of the day before the corresponding time is abnormal, the load power of the communication base station module is the load power of the two days before the corresponding time.
10. The power supply scheduling circuit of claim 6, wherein the control unit is further configured to obtain time data of deep discharge of the battery power supply module;
under the condition that the time data of the deep discharge is larger than a set threshold value, the first switch unit is disconnected, and the second switch unit is connected;
and under the condition that the output voltage of the battery power supply module is reduced to a preset deep discharge voltage value, the second switch unit is switched off.
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| CN115940277B (en) * | 2023-02-07 | 2024-04-16 | 中国铁塔股份有限公司 | Energy scheduling method, device, electronic equipment and readable storage medium |
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