CN112087045B - Iron tower power supply method based on differential standby power equipment - Google Patents
Iron tower power supply method based on differential standby power equipment Download PDFInfo
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- CN112087045B CN112087045B CN202010948641.5A CN202010948641A CN112087045B CN 112087045 B CN112087045 B CN 112087045B CN 202010948641 A CN202010948641 A CN 202010948641A CN 112087045 B CN112087045 B CN 112087045B
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a method for supplying power to an iron tower based on differential power supply equipment, relates to the field of power supply of the iron tower, and can meet the power supply requirements of a primary backup battery and a primary oil engine after 5G equipment of different operators is newly added in a base station. The iron tower power supply method comprises the following steps: step one, after the commercial power supply is interrupted, discharging N standby power supplies to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2; step two, alternately closing M standby power supplies, starting a generator to supply power to Y devices, and supplying power to the remaining X-Y devices by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1; step three, the standby power supply reaches a primary power-off voltage, and differential standby power is started to supply power to X devices; and step four, starting the commercial power to supply power to X devices when the commercial power supply is recovered, and charging the N standby power supplies by the commercial power. According to the invention, part or all of the M standby power supplies are provided with N-M standby power supplies in a corresponding number alternately, and the generator is used for supplying power to Y devices, so that the standby power duration can be prolonged.
Description
Technical Field
The invention relates to the field of power supply of iron towers, in particular to an iron tower power supply method based on differential standby power equipment.
Background
In 2002-2006, 5 enterprises of China Mobile, telecom, Unicom and iron Tong have accumulated 11235 billion Yuan investment for infrastructure construction, the problem of repeated investment is prominent, the utilization rate of network resources is generally low, and the utilization rate of communication optical cables is only about 1/3. The call for resource sharing between operators ensues.
Under the background of implementing the strategy of 'network Enhance of China' and promoting the sharing of telecommunication infrastructure resources, communication tower infrastructure service enterprises are born at the same time. In 2014, an iron tower company lands and mainly engages in iron tower construction, maintenance and operation; the construction, maintenance and operation of base station machine rooms, power supplies, air conditioner supporting facilities and indoor distribution systems and the maintenance of base station equipment.
6 months 6 days in 2019, the Ministry of industry and communications issued 5G commercial license plates to China telecom, China Mobile, China Unicom and China radio and television, operators in various cities successively started 5G large-scale construction, the current 5G construction mainly adopts a mode of sharing a current network base station, and the differentiated network requirements of users bring the differentiated power supply requirements of 5G and traditional 3G/4G network equipment. In order to support the development of 5G services and meet the differentiated power supply requirements of different customers and different devices of a communication base station, an iron tower power supply method based on the differentiated power supply device is urgently needed.
Disclosure of Invention
The invention provides a power supply method for an iron tower based on differential power supply equipment, which is used for meeting different power supply time lengths of 3G, 4G and 5G equipment of different operators under the condition of limited capacity of a storage battery. The equipment can realize the differentiated power supply management function according to time length, voltage, electric quantity, time period and the like according to the power supply requirement of the communication equipment, and meets the differentiated power supply requirement of a multi-user shared base station.
The technical scheme for realizing the purpose of the invention is as follows:
an iron tower power supply method based on differential power supply equipment comprises the following steps:
step one, after the commercial power supply is interrupted, discharging N standby power supplies to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2;
step two, alternately closing M standby power supplies, starting a generator to supply power to Y devices, and supplying power to the remaining X-Y devices by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1;
step three, the standby power supply reaches a primary power-off voltage, and differential standby power is started to supply power to X devices;
and step four, starting the commercial power to supply power to X devices when the commercial power supply is recovered, and charging the N standby power supplies by the commercial power.
As a further improvement of the present invention, in the second step, the generator also charges the alternate-off standby power source.
As a further improvement of the present invention, the alternately turning off M of the standby power supplies in the second step includes:
turning off the first to Mth standby power supplies, and discharging the (M +1) th to Nth standby power supplies;
then, the (M +1) th to (2M) th standby power supplies are closed, and the (first) to (M) th and (2M +1) th to (Nth standby power supplies discharge;
and so on, turn off the 2M +1 to 3M standby power … … nM +1 to (n +1) M standby power in turn.
As a further improvement of the present invention, if (N +1) M +1 is not more than N, the (N +1) th M +1 to Nth backup power supplies are discharged all the time, and if (N +1) M +1 > N, the backup power supplies are not discharged all the time.
As a further improvement of the present invention, the X devices of step one comprise:
2G equipment, 3G equipment, 4G equipment and 5G equipment of different operators;
the different operators include: mobile operator, telecom operator, Unicom operator, Network operator, and Ferro operator.
As a further improvement of the present invention, the standby power supply in the third step reaches a power-down voltage, and differential standby power is enabled to supply power to X devices, including:
in the N standby power supplies, the first standby power supply reaches a power-down voltage, and the power utilization of all 2G equipment and/or 3G equipment in the X equipment is suspended;
among the N backup power supplies, the N/2 backup power supplies reach the power-off voltage once, and the power utilization of any one or any several operator devices in the X devices is suspended.
As a further improvement of the present invention, the differentiated power supply comprises:
according to the interruption time of the commercial power, carrying out differentiated power supply on X devices;
according to different voltages of the standby power supply, carrying out differentiated standby power supply on the X devices;
and according to the power consumption of different operators, carrying out differentiated power supply on the X devices.
As a further improvement of the present invention, the differentiated power supply further includes:
when the commercial power supply is normal, the X devices are differentially powered according to different time periods of power peak valley.
As a further improvement of the present invention, between the third step and the fourth step, further comprising:
and the standby power supply reaches the secondary power-off voltage, and differential standby power supply is started to supply power to 5G equipment or 4G equipment in the X equipment.
As a further improvement of the present invention, the 5G device or the 4G device specifically includes: 5G devices or 4G devices of at least one operator.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, part or all of the M standby power supplies are alternately provided with the N-M standby power supplies in corresponding quantity, and the generator is used for supplying power to Y devices, so that the standby power duration can be prolonged.
2. By means of the 2G, 3G and 4G standby power supplies and the oil engine (diesel generator) of the existing iron tower, the invention can meet the power supply time length difference of each device required by different operators according to the requirements after the mains supply is interrupted, can meet the power supply requirements of the 2G, 3G and 4G devices of different operators and newly added 5G devices only by adding a small oil engine without adding a power supply, and solves the problem that a large quantity of small oil engines drive a large load.
Drawings
Fig. 1 is a first flowchart of an iron tower power supply method according to an embodiment of the present invention;
fig. 2 is a second flowchart of an iron tower power supply method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating alternately turning off M of the standby power supplies in step two according to the embodiment of the present invention;
fig. 4 is a third flowchart of an iron tower power supply method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a differentiated power supply device for differentiated power supply;
reference numerals: 1. a control panel; 2. a display screen; 3. a wiring terminal; 4. a power supply access port; 5. a current output port; 6. a first copper bar; 7. a flow divider; 8. a contactor; 9. a second copper bar; 10. a DC circuit breaker.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The current situation of power supply and demand in China is serious, the situation of power supply of a communication base station is severe due to reasons such as power supply and demand shortage, switching-off and power limiting, power grid failure, power grid maintenance and the like,
the base station direct current power supply system adopts a full floating charge power supply mode, namely, a switching power supply and a storage battery pack are connected in parallel to conduct floating charge power supply. When the mains supply is normal, the switch power supply supplies power to the base station wireless equipment and the transmission equipment, and meanwhile, the storage battery is subjected to floating charging; when the commercial power is cut off, the storage battery pack discharges electricity to supply power to the communication equipment before the oil engine does not supply electricity; after the oil engine supplies power or the commercial power is recovered, the switch power supply supplies power to the equipment and simultaneously carries out equalizing charge (constant voltage after current limiting) on the storage battery, and finally recovers the power supply mode of the switch power supply and the battery pack which are connected in parallel and float charged.
The direct current power distribution system preferentially ensures power supply to the transmission equipment. In the process of discharging the storage battery from the mains supply power failure to the mains supply power restoration, when the discharge voltage of the battery pack reaches the set primary power-off voltage in the switch power supply, the switch power supply disconnects the base station equipment from the power supply system to ensure that the transmission equipment continues to supply power; when the discharge voltage of the battery reaches the set secondary power-off voltage in the switching power supply, the switching power supply separates the rest transmission equipment and other equipment from the power supply system, and damage caused by deep discharge of the battery pack is avoided.
In the present city, the interval between 4G base stations is less than 300 meters, compared with 4G and 5G, the frequency is high, the number of base stations must be increased to realize continuous scale coverage of the same area, the densely distributed small base stations are one of the main characteristics of the 5G base stations, and the more densely distributed base stations mean higher energy consumption. Furthermore, masivemimo (multi-antenna technology) is another feature of 5G base stations, and in the 5G era, 5G base stations will use arrays with more antenna elements, which results in more hardware components per 5G base station. In addition, in order to satisfy the universal interconnection of the 5G era, the 5G base station will process massive data, the bandwidth of the 5G is increased by 10 times, and as the network capacity of the 5G era is rapidly increased, the power consumption of even a single site is greatly increased compared with that of the 4G.
The increased power consumption of a single base station, coupled with the increased size of the overall base station, means that 5G networks will consume several times as much power as 4G.
The invention provides a power supply method for an iron tower based on differentiated power supply equipment under the condition that the capacity of a storage battery is limited, in order to meet different power supply time lengths of 3G, 4G and 5G equipment of different operators, the differentiated power supply equipment has the functions of controlling the on-off of each household circuit and metering the electric quantity, and the power distribution equipment capable of realizing differentiated management of communication base station loads according to the power supply time lengths, the battery voltage and the battery electric quantity can be realized. The equipment can realize the differentiated power supply management function according to time length, voltage, electric quantity, time period and the like according to the power supply requirement of the communication equipment, and meets the differentiated power supply requirement of a multi-user shared base station.
As a first embodiment, please refer to fig. 1, a method for supplying power to an iron tower based on a differentiated power backup device includes the following steps:
and S101, discharging N standby power supplies after the commercial power supply is interrupted to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2.
The X devices of step S101, comprising: 2G devices, 3G devices, 4G devices and 5G devices of different operators. Different operators, including: mobile operator, telecom operator, Unicom operator, Network operator, and Ferro operator.
In the 5G era, the efficiency of a single component of a power supply needs to be improved to the efficiency of a whole station and a whole link, and the lowest energy consumption of a base station and the whole network is realized.
Because the power consumption of the 5G base station is greatly increased, the existing commercial power capacity of part of the base stations cannot meet the 5G deployment, the power consumption of the 5G base station is increased, and the investment of an operator on standby power is multiplied according to the traditional standby power strategy. In addition, the simple power supply and standby function of the traditional power supply cannot meet the requirements of the 5G era.
In step S101, the commercial power supply is interrupted and the N standby power supplies are collectively called a power supply system, the power supply system is further connected to the control unit, and the power supply system supplies power to the existing base station device and the newly added 5G base station device; the control unit comprises a first control unit and a second control unit, the first control unit is connected in series between the power supply system and the existing base station equipment and used for controlling the power on and off of the existing base station equipment, and the second control unit is connected in series between the power supply system and the newly-added 5G base station equipment and used for controlling the power on and off of the newly-added 5G base station equipment; the metering unit is connected to the first control unit and the second control unit and used for metering respective electricity consumption of the existing base station equipment and the newly-added 5G base station equipment. The invention uses the first control unit to control the power supply of the existing base station equipment, uses the second control unit to control the power supply of the newly added 5G base station equipment, the existing base station equipment can be 2G equipment, 3G equipment and 4G equipment, the newly added 5G base station equipment mainly comprises BBU (baseband processing unit) and AAU (active antenna unit). The BBU is responsible for baseband digital signal processing, and the AAU converts the baseband digital signals into analog signals, modulates the analog signals into high-frequency radio-frequency signals, amplifies power through the PA, and transmits the high-frequency radio-frequency signals through the antenna. In the process, the AAU bears a large amount of power consumption sources, so the second control unit of the invention independently controls the power supply of the newly-added 5G base station.
The power supply system comprises a commercial power supply module and a standby power supply module. Wherein. The commercial power supply module is used for supplying power to the existing base station equipment and the newly-added 5G base station equipment when the commercial power supply is normal; and the standby power supply module supplies power to the existing base station equipment and the newly-added 5G base station equipment when the mains supply is interrupted. The standby power supply module comprises N standby power supplies and a generator. After the commercial power supply is interrupted, discharging N standby power supplies to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2; alternately shutting off M standby power supplies, starting a generator to supply power to Y devices, and supplying power to the remaining X-Y devices by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1; the standby power supply reaches a primary power-off voltage, and differential standby power is started to supply power to the X devices; and when the mains supply is recovered, the mains supply is started to supply power to the X devices, and the mains supply also charges the N standby power supplies. Specifically, among the N backup power supplies, the first backup power supply reaches a power-off voltage, and power consumption of all 2G devices and/or 3G devices among the X devices is suspended. Among the N backup power supplies, the N/2 backup power supplies reach the power-off voltage once, and the power utilization of any one or any several operator devices in the X devices is suspended. And the standby power supply reaches the secondary power-off voltage, and differential standby power supply is started to supply power to 5G equipment or 4G equipment in the X equipment. And when the mains supply is recovered, the mains supply is started to supply power to the X devices, and the mains supply also charges the N standby power supplies.
Because the same iron tower is hung with equipment of different operators, the different operators include but are not limited to at least two of mobile operators, telecommunication operators, Unicom operators, radio and television operators, Internet operators and iron-communications operators. Existing devices of a mobile operator may include 2G mobile devices, 3G mobile devices and 4G mobile devices, and newly added 5G devices of the mobile operator include BBUs (mobile baseband processing units) and AAUs (mobile active antenna units); existing devices of a telecommunications carrier may include 2G, 3G and 4G telecommunications devices, and newly added 5G devices of the telecommunications carrier include BBU (telecommunications baseband processing unit) and AAU (telecommunications active antenna unit). Existing devices of the unicom operator may include 2G unicom devices, 3G unicom devices, and 4G unicom devices, and newly added 5G devices of the unicom operator include BBU (unicom baseband processing unit) and AAU (unicom active antenna unit). The existing devices of the broadcasting and television operators can comprise 2G broadcasting and television devices, 3G broadcasting and television devices and 4G broadcasting and television devices, and the newly added 5G devices of the broadcasting and television operators comprise BBUs (base band units for broadcasting and television) and AAUs (active antenna units for broadcasting and television).
And S102, alternately closing M standby power supplies, starting a generator to supply power to Y equipment, and supplying power to the remaining X-Y equipment by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1.
Specifically, Z devices out of the X devices stop using power, and the remaining X-Z devices normally use power. Starting a generator to supply power to Y devices in the X devices, supplying power to the rest X-Y devices by M standby power supplies in the N standby power supplies, and charging the rest N-M standby power supplies by the generator, wherein Y is more than or equal to 1, X-Y is more than 0, M is more than or equal to 1, and N-M is more than 0; and replacing M standby power supplies with corresponding quantity by partial or all residual N-M standby power supplies, and repeatedly replacing different standby power supplies by charging the replaced standby power supplies through the generator.
And S103, enabling the differential standby power supply to supply power to the X devices when the standby power supply reaches a primary power-off voltage.
The differential power supply in step S103 includes a control unit, the control unit controls the differential power supply, the control unit is connected to the power supply system, the control unit includes a first control unit and a second control unit, the first control unit is connected in series between the power supply system and the existing base station device and is used for controlling the power on/off of the existing base station device, and the second control unit is connected in series between the power supply system and the newly added 5G base station device and is used for controlling the power on/off of the newly added 5G base station device. The first control unit comprises a plurality of first user control units, and the first user control units correspond to a plurality of different operators; each first subscriber control unit controls the existing base station equipment of the same operator; the second control unit comprises a plurality of second subscriber control units, and the plurality of second subscriber control units also correspond to a plurality of different operators; and each second subscriber control unit controls the newly added 5G base station equipment of the same operator. Each operator corresponds to at least one first subscriber control unit and at least one second subscriber control unit.
The first sub-user control unit and the second sub-user control unit have the same structure, and are collectively called as sub-user control units in the following, and the plurality of sub-user control units correspond to a plurality of operators; the input ends of a plurality of individual control units are connected with the direct current power supply system, and each individual control unit controls all base station equipment of one operator; the plurality of household control units and the metering module are electrically connected with the processing module; the metering module is connected between the direct current power supply system and base station equipment of an operator; and acquiring the electricity utilization data of a plurality of operators, receiving the electricity utilization data sent by the metering module by the processing module, matching the electricity utilization data with the prepayment cost of the corresponding operator, and controlling the action of the household control unit according to the matching result.
Referring to fig. 5, the household control unit according to the embodiment of the present invention includes a power input port 4, a current output port 5, a first copper bar 6, a shunt 7, and a contactor 8, wherein the power input port 4 of the second copper bar 9 is connected to a dc circuit breaker 10, the dc circuit breaker 10 is connected to the first copper bar 6, the first copper bar 6 is connected to the shunt 7, the shunt 7 is connected to the contactor 8, the contactor 8 is connected to the second copper bar 9, and the second copper bar 9 is connected to one current output port 5. The power supply access 4 is a power supply access 4 of the household control unit, and the power supply access 4 is connected with the output end of the power supply system. Specifically, the household control unit comprises a power supply access port 4, a current output port 5, a first copper bar 6, a current divider 7, a contactor 8 and a second copper bar 9; the power supply access 4 is connected with a direct current breaker 10 (the direct current breaker 10 is a switching device which can close, bear and open current under normal loop conditions and can close, bear and open current under abnormal loop conditions within a specified time), the direct current breaker 10 is connected with a first copper bar 6, the first copper bar 6 is connected with a shunt 7 (the shunt 7 is a resistor with very small resistance actually, and generates voltage drop when direct current passes through the resistor, so that the direct current can be displayed by a direct current meter), the shunt 7 is connected with a contactor 8, the contactor 8 is connected with a second copper bar 9, and the second copper bar 9 is connected with a current output port 5; the household control units are at least one, and the plurality of household control units are electrically connected with the metering module; the power supply access 4 of the household control unit is connected with the input end of a power supply system, the input end of the power supply system is connected with a mains supply or a standby power supply, the power supply system converts alternating current into direct current which can be used by a power supply module and outputs the direct current from the output end of the power supply system, and the power supply input end of the power supply circuit is connected with the output end of the power supply system; at least one current output port 5 is provided, and a plurality of output ports can be respectively connected to different communication base stations of 2G, 3G, 4G and 5G, so that power can be supplied to different communication base stations and different operators; the standby power supply module is provided with at least one group of batteries.
Preferably, one end of the first copper bar 6 and one end of the second copper bar 9 are respectively connected to two main wiring ends of the contactor 8; the other end of the first copper bar 6 and the other end of the second copper bar 9 are both used for being connected with a household or one path of base station communication equipment.
The household control unit also comprises a direct current breaker 10; the end part of the first copper bar 6 far away from the contactor 8 and the end part of the second copper bar 9 far away from the contactor 8 are both connected with one side of a direct current breaker 10; the other side of the dc breaker 10 is used for connecting a household or a base station communication device. The household control unit also comprises a first conductive piece and a second conductive piece; the tip of keeping away from contactor 8 of first copper bar 6 is connected with direct current circuit breaker 10 through first electrically conductive piece, and the tip of keeping away from contactor 8 of second copper bar 9 is connected with direct current circuit breaker 10 through second electrically conductive piece. The second conductive parts of the plurality of household control units are integrally connected. The household control unit also comprises a first insulating part, and two ends of the first insulating part are respectively connected to the first conductive part and the second conductive part. The second conductive piece is positioned below the first conductive piece, and the household control unit further comprises a second insulating piece connected to the bottom surface of the second conductive piece. The current divider 7 is arranged between the first copper bar 6 and the main wiring end of the contactor 8, or between the second copper bar 9 and the corresponding main wiring end of the contactor 8.
The display screen corresponds to a plurality of household control units one by one, and a plurality of display screens 2 are connected with the control panel 1. The differentiated standby power shown in fig. 5 has two household control units and two display screens 2, and the two display screens 2 respectively correspond to the two household control units. The control panel 1 controls the plurality of display screens 2 to display the residual electric quantity of the electric equipment connected with the plurality of household control units according to the total electric quantity and the electric quantity used by the electric equipment connected with each household control unit. The total electric quantity is the electric quantity purchased by the operator for the electric equipment connected with each individual control unit.
And step S104, starting the commercial power to supply power to the X devices when the commercial power supply is recovered, and charging the N standby power supplies by the commercial power.
The power supply system comprises a commercial power supply module and a standby power supply module. Wherein. The commercial power supply module supplies power to the existing base station equipment and the newly-added 5G base station equipment when the commercial power supply is normal; and the standby power supply module supplies power to the existing base station equipment and the newly-added 5G base station equipment when the mains supply is interrupted.
Referring to fig. 3, the alternately turning off of M of the standby power supplies in step S102 includes:
step S102a, the first to mth backup power sources are turned off, and the M +1 to nth backup power sources are discharged.
Step S102b, turning off the M +1 th to 2M th standby power supplies, and discharging the first to M th and 2M +1 th to nth standby power supplies.
Step S102c, and so on, turns off the 2M +1 to 3M backup power … … nM +1 to (n +1) M backup power in sequence.
And if the (N +1) M +1 is less than or equal to N, the (N +1) M +1 to the Nth standby power supply are discharged all the time, and if the (N +1) M +1 is more than N, the standby power supply is not discharged all the time.
Each operator corresponds to at least one first subscriber control unit and at least one second subscriber control unit; the metering unit includes: the electricity consumption metering module of the existing base station equipment of each operator and the electricity consumption metering module of the newly-added 5G base station equipment of each operator are arranged; the power consumption metering module of the existing base station equipment and the power consumption metering module of the newly-added 5G base station equipment are both connected with the processing unit; the different electricity consumption metering modules of the existing base station equipment are used for metering the electricity consumption of the existing base station equipment of different operators; and the electricity consumption metering modules of the different newly-added 5G base station equipment are used for metering the electricity consumption of the newly-added 5G base station equipment of different operators.
It should be noted that, in the embodiment of the present invention, the first subscriber control unit and the second subscriber control unit have the same structure, and are hereinafter collectively referred to as a subscriber control unit, and the existing base station equipment power consumption metering module and the newly added 5G base station equipment power consumption metering module have the same structure, and are hereinafter collectively referred to as a metering module.
The intelligent power supply control and metering device for the 5G base station comprises a power supply system, a plurality of individual control units, a metering module and a processing module, wherein the plurality of individual control units correspond to a plurality of operators; the input ends of a plurality of individual control units are connected with the direct current power supply system, and each individual control unit controls all base station equipment of one operator; the plurality of household control units and the metering module are electrically connected with the processing module; the metering module is connected between the direct current power supply system and base station equipment of an operator; and acquiring the electricity utilization data of a plurality of operators, receiving the electricity utilization data sent by the metering module by the processing module, matching the electricity utilization data with the prepayment cost of the corresponding operator, and controlling the action of the household control unit according to the matching result.
Referring to fig. 5, the household control unit according to the embodiment of the present invention includes a power input port 4, a current output port 5, a first copper bar 6, a shunt 7, and a contactor 8, wherein the power input port 4 of the second copper bar 9 is connected to a dc circuit breaker 10, the dc circuit breaker 10 is connected to the first copper bar 6, the first copper bar 6 is connected to the shunt 7, the shunt 7 is connected to the contactor 8, the contactor 8 is connected to the second copper bar 9, and the second copper bar 9 is connected to one current output port 5. The power supply access 4 is a power supply access 4 of the household control unit, and the power supply access 4 is connected with the output end of the power supply system. Specifically, the household control unit comprises a power supply access port 4, a current output port 5, a first copper bar 6, a current divider 7, a contactor 8 and a second copper bar 9; the power supply access 4 is connected with a direct current breaker 10 (the direct current breaker 10 is a switching device which can close, bear and open current under normal loop conditions and can close, bear and open current under abnormal loop conditions within a specified time), the direct current breaker 10 is connected with a first copper bar 6, the first copper bar 6 is connected with a shunt 7 (the shunt 7 is a resistor with very small resistance actually, and generates voltage drop when direct current passes through the resistor, so that the direct current can be displayed by a direct current meter), the shunt 7 is connected with a contactor 8, the contactor 8 is connected with a second copper bar 9, and the second copper bar 9 is connected with a current output port 5; the household control units are at least one, and the plurality of household control units are electrically connected with the metering module; the power supply access 4 of the household control unit is connected with the input end of a power supply system, the input end of the power supply system is connected with a mains supply or a standby power supply, the power supply system converts alternating current into direct current which can be used by a power supply module and outputs the direct current from the output end of the power supply system, and the power supply input end of the power supply circuit is connected with the output end of the power supply system; at least one current output port 5 is provided, and a plurality of output ports can be respectively connected to different communication base stations of 2G, 3G, 4G and 5G, so that power can be supplied to different communication base stations and different operators; the standby power supply module is provided with at least one group of batteries.
Preferably, one end of the first copper bar 6 and one end of the second copper bar 9 are respectively connected to two main wiring ends of the contactor 8; the other end of the first copper bar 6 and the other end of the second copper bar 9 are both used for being connected with a household or one path of base station communication equipment.
The household control unit also comprises a direct current breaker 10; the end part of the first copper bar 6 far away from the contactor 8 and the end part of the second copper bar 9 far away from the contactor 8 are connected with one side of a direct current breaker 10; the other side of the dc breaker 10 is used for connecting a household or a base station communication device. The household control unit also comprises a first conductive piece and a second conductive piece; the tip of keeping away from contactor 8 of first copper bar 6 is connected with direct current circuit breaker 10 through first electrically conductive piece, and the tip of keeping away from contactor 8 of second copper bar 9 is connected with direct current circuit breaker 10 through second electrically conductive piece. The second conductive parts of the plurality of household control units are integrally connected. The household control unit further comprises a first insulating part, and two ends of the first insulating part are connected to the first conductive part and the second conductive part respectively. The second conductive piece is positioned below the first conductive piece, and the household control unit further comprises a second insulating piece connected to the bottom surface of the second conductive piece. The current divider 7 is arranged between the first copper bar 6 and the main wiring end of the contactor 8, or between the second copper bar 9 and the corresponding main wiring end of the contactor 8.
Referring to fig. 5, the metering module includes a connection terminal 3, a control board 1, the connection terminal 3 is connected to an external power source, the connection terminal 3 is electrically connected to the control board 1, and the control board 1 counts the power consumption of the household control unit. The metering module is divided into a control module and a metering module, the control module mainly controls whether power is supplied to each path or each household, when the power supply of the commercial power fails, the control module controls the power supply system to supply power to the standby power supply for the municipal power supply, and if each path or each household has priority, the control module supplies power preferentially to the power supply with high priority according to the priority. The control module adopts an LTC4414 controller for switching the input circuit of the power supply system, and the LTC4414 is a power P-EFT controller, is mainly used for controlling on-off and automatic switching of a power supply and can also be used as a high-end power switch. The power supply switching circuit is controlled by a microcontroller (mu C), and a main P-MOSFET and an auxiliary P-MOSFET of the power supply switching circuit are both composed of two back-to-back P-MOSFETs, so that when the P-MOSFET in the main power supply or the auxiliary power supply is cut off, power cannot be supplied to a load through a diode in the P-MOSFET. The power supply system further includes: and the power supply detection module is connected with the commercial power supply module and the standby power supply module and used for judging whether the current commercial power supply module or the standby power supply module supplies power to the existing base station equipment and the newly-added 5G base station equipment. The existing base station apparatuses include a 2G base station apparatus, a 3G base station apparatus, and a 4G base station apparatus.
As a second implementation manner, please refer to fig. 2, a method for supplying power to an iron tower based on differential power backup equipment includes the following steps:
step S201, after the commercial power supply is interrupted, N standby power supplies discharge power for X devices, wherein N is larger than or equal to 2, and X is larger than or equal to 2.
And S202, alternately closing M standby power supplies, starting a generator to supply power to Y devices, supplying power to the remaining X-Y devices by the remaining N-M standby power supplies, and charging the alternately closed standby power supplies by the generator, wherein Y is more than or equal to 1, and M is more than or equal to 1.
And step S203, the standby power supply reaches the primary power-off voltage, and differential standby power is started to supply power to the X devices.
And step S204, starting the commercial power to supply power to the X devices when the commercial power supply is recovered, and charging the N standby power supplies by the commercial power.
The standby power supply of step S203 reaches the first power-off voltage, and the differentiated standby power is enabled to supply power to the X devices, including:
among the N blocks of standby power supplies, the first block of standby power supply reaches a power-off voltage, and the power consumption of all 2G equipment and/or 3G equipment in the X pieces of equipment is suspended.
Among the N backup power supplies, the N/2 backup power supplies reach the power-off voltage once, and the power utilization of any one or any several operator devices in the X devices is suspended.
In some embodiments, differentiated power generation comprises:
and according to the interruption time of the commercial power, carrying out differentiated power supply on the X devices.
And according to different voltages of the standby power supply, the X devices are differentially powered.
And according to the power consumption of different operators, carrying out differentiated power supply on the X devices.
When this differentiation is equipped with power and is carried out the branch family control to different operators, the power consumption equipment of every operator on same basic station needs to be equipped with the power for a long time or the electric quantity is different, promptly after the commercial power outage, to the power supply in the different operations for a long time or the electric quantity is different. When the time length or the electric quantity of one operator is used up, the control module controls the user-divided control unit corresponding to the operator to be disconnected. The command for controlling when the individual control unit corresponding to each operator is disconnected is the preset logic control of the individual control.
During this differentiation is equipped with power control, the length of time or the electric quantity of being equipped with power that the multichannel consumer of same operator needs on same basic station is different, promptly after the commercial power outage, and the length of time or the electric quantity of power supply to different road circuit consumers are different. When the duration or the electric quantity of one path of electric equipment is used up, the control module controls the corresponding execution component of the path to be disconnected. The command for controlling when the execution component corresponding to each on-circuit device is disconnected is the preset logic control of the user-based control.
Differentiation is equipped with the electricity, still includes:
when the commercial power supply is normal, the X devices are differentially powered according to different time periods of power peak valley.
The method comprises the following steps: acquiring the time length of power supply required by different equipment of different operators; and realizing quick response according to the electricity price level and the power grid load condition: in the high-load operation time of the power plant, such as the high electricity price time period, the peak electricity utilization time period and the like, the echelon battery supplies power to the base station.
As a third embodiment, please refer to fig. 4, a method for supplying power to an iron tower based on differential power backup equipment includes the following steps:
and S401, discharging N standby power supplies after the commercial power supply is interrupted to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2.
And S402, alternately closing M standby power supplies, starting a generator to supply power to Y equipment, and supplying power to the remaining X-Y equipment by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1.
And S403, enabling the differential standby power supply to supply power to the X devices when the standby power supply reaches the primary power-off voltage.
And S404, the standby power supply reaches a secondary power-off voltage, and differential standby power supply is started to supply power to only 5G equipment or 4G equipment in the X equipment.
Step S405, when the mains supply is recovered, the mains supply is started to supply power to the X devices, and the mains supply also charges the N standby power supplies. The method comprises the following steps: acquiring the time length of power supply required by different equipment of different operators; and realizing quick response according to the electricity price level and the power grid load condition: in the high-load operation time of the power plant, such as the high electricity price time period, the peak electricity utilization time period and the like, the echelon battery supplies power to the base station.
5G equipment or 4G equipment is specifically: 5G devices or 4G devices of at least one operator.
The calculation formula of the total capacity of the standby power supply configured by the wireless base station is as follows:
wherein: q: battery capacity (Ah); k: the safety coefficient is 1.25; i: a load current (A); t: number of discharge hours (h); eta: a discharge capacity coefficient; t: the ambient temperature value of the actual battery location; α: when the battery temperature coefficient (1/° C) is more than 10 and the discharge hour rate is more than or equal to 1, taking alpha as 0.008.
According to the invention, part or all of the M standby power supplies are provided with N-M standby power supplies in a corresponding number alternately, and the generator is used for supplying power to Y devices, so that the standby power duration can be prolonged. By means of the 2G, 3G and 4G standby power supplies and the oil engine (diesel generator) of the existing iron tower, the invention can meet the power supply time length difference of each device required by different operators according to the requirements after the mains supply is interrupted, can meet the power supply requirements of the 2G, 3G and 4G devices of different operators and newly added 5G devices only by adding a small oil engine without adding a power supply, and solves the problem that a large quantity of small oil engines drive a large load.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An iron tower power supply method based on differential standby power equipment is characterized by comprising the following steps:
step one, after the commercial power supply is interrupted, discharging N standby power supplies to supply power to X devices, wherein N is more than or equal to 2, and X is more than or equal to 2; the X devices include: 2G equipment, 3G equipment, 4G equipment and 5G equipment of different operators; the different operators include: mobile operator, telecom operator, Unicom operator, Network operator and iron-pass operator;
step two, alternately closing M standby power supplies, starting a generator to supply power to Y devices, and supplying power to the remaining X-Y devices by the remaining N-M standby power supplies, wherein Y is more than or equal to 1, and M is more than or equal to 1;
step three, the standby power supply reaches a primary power-off voltage, and differential standby power is started to supply power to X devices; the standby power supply reaches a secondary power-off voltage, and differential standby power is started to supply power to only 5G equipment or 4G equipment in the X equipment;
step four, starting the commercial power to supply power to X devices when the commercial power supply is recovered, and charging the N standby power supplies by the commercial power;
step three the stand-by power supply reaches a power-off voltage, and differential stand-by power supply is started to supply power to X devices, and the method comprises the following steps:
in the N standby power supplies, the first standby power supply reaches a power-down voltage, and the power utilization of all 2G equipment and/or 3G equipment in the X equipment is suspended;
among the N backup power supplies, the N/2 backup power supplies reach the power-off voltage once, and the power utilization of any one or any several operator devices in the X devices is suspended.
2. The iron tower power supply method according to claim 1, wherein in the second step, the generator further charges a standby power supply which is turned off alternately.
3. The iron tower power supply method according to claim 1 or 2, wherein the alternately turning off of the M standby power supplies in the second step comprises:
turning off the first to Mth standby power supplies, and discharging the (M +1) th to Nth standby power supplies;
then, the (M +1) th to (2M) th standby power supplies are closed, and the (first) to (M) th and (2M +1) th to (Nth standby power supplies discharge;
and so on, turn off the 2M +1 to 3M standby power … … nM +1 to (n +1) M standby power in turn.
4. The iron tower power supply method according to claim 3, wherein if (N +1) M +1 is less than or equal to N, the (N +1) M +1 to the Nth standby power supply are discharged all the time, and if (N +1) M +1 is greater than N, the standby power supply is not discharged all the time.
5. The iron tower power supply method according to claim 1, wherein the X devices of step one comprise:
2G equipment, 3G equipment, 4G equipment and 5G equipment of different operators;
the different operators include: mobile operator, telecom operator, Unicom operator, Network operator, and Ferro operator.
6. The iron tower power supply method according to claim 1 or 5, wherein the standby power supply in the third step reaches a power-down voltage, and differential standby power is enabled to supply power to X devices, and the method comprises the following steps:
in the N standby power supplies, the first standby power supply reaches a power-down voltage, and the power utilization of all 2G equipment and/or 3G equipment in the X equipment is suspended;
among the N backup power supplies, the N/2 backup power supplies reach the power-off voltage once, and the power utilization of any one or any several operator devices in the X devices is suspended.
7. The iron tower power supply method according to claim 1, wherein the differentiated power supply comprises:
according to the interruption time of the commercial power, carrying out differentiated power supply on X devices;
according to different voltages of the standby power supply, carrying out differentiated standby power supply on the X devices;
and according to the power consumption of different operators, carrying out differentiated power supply on the X devices.
8. The iron tower power supply method according to claim 7, wherein the differentiated power supply further comprises:
when the commercial power supply is normal, the X devices are differentially powered according to different time periods of power peak valley.
9. The iron tower power supply method according to claim 1, further comprising, between the third step and the fourth step:
and the standby power supply reaches the secondary power-off voltage, and differential standby power supply is started to supply power to 5G equipment or 4G equipment in the X equipment.
10. The iron tower power supply method according to claim 9, wherein the 5G device or the 4G device is specifically: 5G devices or 4G devices of at least one operator.
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| CN112653118B (en) * | 2020-12-18 | 2023-12-22 | 重庆瑞盾科技发展有限公司 | Custom individual selection unit and intelligent standby electric control system for custom individual |
| CN113765206A (en) * | 2021-08-02 | 2021-12-07 | 华信咨询设计研究院有限公司 | Refined standby power control method, device and system for base station |
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