WO2021109519A1

WO2021109519A1 - Smart power distribution box applicable to alternating-current communication base station

Info

Publication number: WO2021109519A1
Application number: PCT/CN2020/094990
Authority: WO
Inventors: 邓士伟; 苗青
Original assignee: 江苏智臻能源科技有限公司
Priority date: 2019-12-02
Filing date: 2020-06-08
Publication date: 2021-06-10
Also published as: CN111049029A

Abstract

Disclosed in the present invention is a smart power distribution box applicable to an alternating-current communication base station, comprising a main power distribution box, a Mobile power distribution box, a Unicom power distribution box and a Telecom power distribution box, each power distribution box comprising an independent electronic door lock and power utilization air switch group. The main power distribution box comprises a double-power source interlock switch, which comprises a double-power source connection interface capable of connecting power grid and oil engine power sources, and comprises four outgoing lines to be connected to four power utilization air switch groups, providing independent power supply for station power utilization, Mobile operator equipment, Unicom operator equipment and Telecom operator equipment; the main power distribution box comprises a smart power utilization management and control terminal for acquiring an incoming voltage, an incoming leakage current and four outgoing currents, which has an independent switch quantity acquisition and control interface for four alternating-current contactors and four electronic door locks, and has functions of operator shunt measurement and operator power distribution management, thereby achieving smart power utilization management of an alternating-current communication base station, avoiding line installation and connection without permission, and improving the management level of the alternating-current communication base station.

Description

Intelligent distribution box suitable for AC communication base station

Technical field

The invention belongs to the field of power distribution applications, and is an intelligent power distribution box, and specifically relates to a power distribution smart power distribution box that is suitable for AC communication base stations and realizes commercial power branch metering of operators and intelligent management and control of power distribution of operators.

Background technique

China Tower Corporation is a large-scale state-owned communications tower infrastructure service company. It is responsible for the construction and maintenance of equipment rooms, towers, and power supplies. It has the characteristics of a large number of operating base stations and large power consumption. Generally, the communication base stations under the jurisdiction of the tower company are divided into AC communication stations, DC communication base stations and hybrid communication base stations. They are unattended and lack limited power operation management and control methods. The annual loss due to the inability to effectively supervise is high. Among them, the AC communication base station has more problems than the other two types of base stations. The main manifestations are chaotic wiring, inability to branch and meter, chaotic charges, lack of access management, old distribution boxes, and hidden dangers of electricity theft.

In view of the above problems, there is an urgent need to build a base station smart power operation management and control system, tap the pain points of the base station’s profit loss, earnestly perform in-depth monitoring of the operation link to reduce operating losses, and use base station resources to explore new profit growth points. Make improvements in the following areas:

The first is to improve the level of refined collection of base stations, to achieve high-precision calculation of power consumption by operators, multi-level measurement of power distribution data, and identification and calculation of base station operating equipment to increase the perception of base station data;

The second is to strengthen the lean management capabilities of base stations. On the one hand, the operation management and control of operator equipment, access management and control of diesel equipment, operation management of battery equipment, and power theft analysis of non-base station equipment are used to reduce tower companies and operators. Operating losses; on the other hand, through the operator’s bill management and control, the tower company’s capital flow efficiency is improved;

The third is to tap the multi-dimensional efficiency enhancement methods of the base station, rationally use the two major resources of base station battery energy storage and air conditioning, and obtain energy conservation and interactive subsidies through energy conservation, participation in grid supply and demand interaction, and comprehensive energy efficiency diagnosis, so as to achieve a breakthrough in the company's overall efficiency;

The fourth is to improve the intelligent operation and maintenance capabilities of base stations, realize accurate perception of base station failures, visual display of operating data, and process management and control of base station operation and maintenance, ensure power supply quality, power safety, and power supply efficiency, reduce operation and maintenance pressure, and reduce factors Failure loss caused by poor base station operation and maintenance.

However, at the level of power distribution perception in the communication base station system, there are no targeted terminals and distribution boxes to achieve effective terminal power distribution management and power data collection perception.

Summary of the invention

In order to overcome the shortcomings of the prior art, the present invention provides an intelligent power distribution box suitable for AC communication base stations.

In order to achieve the above objectives, the present invention adopts the following technical solutions: an intelligent distribution box suitable for AC communication base stations, including a main distribution box, a mobile distribution box, a Unicom distribution box, and a telecommunications distribution box. The electric box includes the oil machine power interface, the power grid inlet interface, four AC contactors, the base station intelligent power control terminal, air switch, three-phase current transformer, leakage current transformer, dual power supply interlock switch and single-phase current transformer , The oil engine power interface and the power grid inlet interface are both connected to a dual power supply interlock switch through three-phase wiring, and the output end of the dual power supply interlock switch is divided into four lines and passes through the four AC contactors respectively, and then respectively Connect to the inside of the main distribution box, mobile distribution box, Unicom distribution box and telecommunications distribution box; the dual power interlock switch has an independent three-phase line outgoing through the air switch, and then connects to the base station intelligent use The electric control terminal is used as the power supply for the base station's intelligent electric control terminal. The base station's intelligent electric control terminal realizes the three-phase voltage acquisition of the connected electricity; the connection line between the power grid inlet interface and the dual power supply interlock switch is provided with a power supply. The three-phase current transformer and the leakage current transformer, the connection lines of the dual power supply interlock switch and the four AC contactors are all provided with the single-phase current transformer, and the base station intelligent electricity control terminal is connected Three-phase current transformers and the four single-phase current transformers, the base station intelligent power management terminal collects the three-phase current of the total incoming line through the three-phase current transformer, and collects the four-phase current of the dual power supply interlock switch through the single-phase current transformer. Route the outgoing line current, and collect the three-phase total incoming line leakage current through the leakage current transformer.

Furthermore, the shells of the main distribution box, the mobile distribution box, the Unicom distribution box and the telecommunications distribution box are all equipped with electronic door locks for matching the main distribution box, the mobile distribution box, and the Unicom distribution box. The shells of the electric box and the telecommunications distribution box are locked. The main distribution box, mobile distribution box, Unicom distribution box and telecommunications distribution box are respectively equipped with station air switch groups and mobile operator equipment. The electric air switch group, the electric air switch group for equipment of China Unicom operator and the electric air switch group for equipment of telecommunications operator, the output ends of the dual power interlock switch are divided into four lines after passing through the four AC contactors, respectively Connect to the main distribution box and the mobile power distribution unit through the access station power air switch group, mobile operator equipment power air switch group, Unicom operator equipment power air switch group, and telecom operator equipment power air switch group. The internal structure of the above four boxes, Unicom distribution boxes and telecommunications distribution boxes.

Furthermore, the intelligent power management terminal of the base station includes three-phase voltage access terminals, 9 current access terminals, 8 DI ports, 8 DO ports, 1 RS485 interface and 1 4G module. The intelligent electricity management and control terminal is used for sub-operator metering and power distribution management for different operators; the three-phase voltage access terminal is connected to the output end of the dual power supply interlock switch, and the information of the dual power supply interlock switch is collected. Outgoing three-phase voltage, the first three of the 9 current access terminals are respectively connected to the three-phase current interface of the current transformer to collect the three-phase current of the current transformer; the fourth path of the current access terminal is connected to the The leakage current transformer collects the leakage current of the three-phase incoming line of the leakage current transformer; the fifth, sixth, seventh and eighth routes of the current access terminal respectively pass through the four single-phase current transformers, Collect the outgoing currents of the four AC contactors; 8 DI ports and 8 DO ports, connected in eight pairs to the ports of the four AC contactors and the ports of the four electronic door locks ; The RS485 interface and 4G module are configured with communication equipment to communicate with external systems and equipment.

Beneficial effects: Compared with the prior art, the present invention has the following advantages: the distribution boxes of the present invention all include independent electronic door locks and electric and air switch sets, and the total distribution box includes dual power supply interlock switches and has dual power supplies. The access interface can be connected to the power grid and diesel engine power supply. It has four outlets to connect to four electrical and air circuit breakers, and the electrical and air circuit breakers are connected to the application electrical and air circuit breakers to provide station power and mobile operators. Independent power supply for equipment, equipment of China Unicom operators and equipment of telecom operators; the main distribution box contains intelligent power management and control terminals, collecting incoming line voltage, incoming line leakage current and four-way outgoing current, with AC contactors and four electronic doors The independent control interface of the lock has the functions of sub-operator metering and operator power distribution management; the present invention provides intelligent power distribution boxes suitable for AC communication base stations to achieve operator commercial power branch metering and operator power distribution intelligent management and control , So as to avoid unauthorized connection, improve the management level of communication communication base station, and provide conditions for the construction of the base station's smart electricity operation management system.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention,

Figure 2 is a schematic diagram of the terminal structure of the base station intelligent electricity management and control terminal of the present invention.

Among them, 1-total distribution box, 2- mobile distribution box, 3- Unicom distribution box, 4- telecommunications distribution box, 5- electronic door lock, 101- diesel engine power interface, 102- grid inlet interface, 103-AC contactor, 104-station electric air switch group, 105-base station intelligent electric control terminal, 106-air switch, 107-three-phase current transformer, 108-leakage current transformer, 109-dual power supply interlock switch , 1010-single-phase current transformer, 1051-three-phase voltage access terminal, 1052-current access terminal, 1053-DI port, 1054-DO port, 1055-RS485 interface, 1056-4G module, 201-mobile operator Equipment electric air switch group, 301-Unicom operator equipment electric air switch group, 401-Telecom operator equipment electric air switch group.

Detailed ways

In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art have Modifications in equivalent forms fall within the scope defined by the appended claims of this application.

As shown in Figure 1, the smart distribution box suitable for AC communication base stations includes a main distribution box 1, a mobile distribution box 2, a Unicom distribution box 3, and a telecommunications distribution box 4. The main distribution box 1 includes oil Machine power interface 101, grid inlet interface 102, four AC contactors 103, base station intelligent power management terminal 105, air switch 106, three-phase current transformer 107, leakage transformer 108, dual power supply interlock switch 109 and single Phase current transformer 1010, diesel engine power interface 101 and grid inlet interface 102 are all connected to dual power supply interlock switch 109 through three-phase wiring. The output end of dual power supply interlock switch 109 is divided into four lines and passes through four AC contactors. 103, and then connected to the main distribution box 1, the mobile distribution box 2, the Unicom distribution box 3 and the telecommunications distribution box 4; the dual power interlock switch 109 has an independent three-phase line outgoing through the air switch 106, Then it is connected to the base station intelligent electricity control terminal 105 as the power supply of the base station intelligent electricity control terminal 105. The base station intelligent electricity control terminal 105 realizes the three-phase voltage acquisition of the connected electricity; the grid inlet interface 102 is interlocked with the dual power supply A three-phase current transformer 107 and a leakage transformer 108 are provided on the connection line of the switch 109, and a single-phase current transformer 1010 is provided on the connection line of the dual power supply interlock switch 109 and the four AC contactors 103. The base station uses intelligent electricity. The control terminal 105 is connected to a three-phase current transformer 107 and four single-phase current transformers 1010. The base station intelligent power management terminal 105 collects the total incoming three-phase current through the three-phase current transformer 107, and collects it through the single-phase current transformer 1010 The four-way outgoing current of the dual power supply interlock switch 109 is used to collect the three-phase total incoming line leakage current through the leakage transformer 108.

As a specific implementation of the present invention, as shown in FIG. 1, the main distribution box 1, mobile distribution box 2, Unicom distribution box 3, and telecommunications distribution box suitable for the intelligent distribution box of an AC communication base station are shown in FIG. The shells of 4 are equipped with electronic door locks 5, which are used to lock the shells of the main distribution box 1, the mobile distribution box 2, the Unicom distribution box 3 and the telecommunications distribution box 4. The main distribution box 1 , Mobile power distribution box 2, Unicom power distribution box 3 and telecommunications power distribution box 4 are respectively equipped with station electrical air switch group 104, mobile operator equipment electrical air switch group 201, and China Unicom operator equipment electrical air switch group 301 The output terminal of the dual power supply interlock switch 109 is divided into four lines and passes through the four AC contactors 103, and then passes through the electric air switch group 104 of the access station and the mobile operator equipment respectively. Electric air switch group 201, China Unicom operator equipment electric air switch group 301, and telecommunications operator equipment electric air switch group 401 are respectively connected to the main distribution box 1, the mobile distribution box 2, the China Unicom distribution box 3 and the telecommunications The internal structure of the distribution box 4 of the above four.

As shown in Figure 2, the base station intelligent electricity control terminal 105 includes three-phase voltage access terminals 1051, 9 current access terminals 1052, 8 DI ports 1053, 8 DO ports 1054, 1 RS485 interface 1055, and 1 4G module 1056, the base station intelligent electricity management terminal 105 is used for sub-operator metering and power distribution management for different operators; the three-phase voltage access terminal 1051 is connected to the output terminal of the dual power supply interlock switch 109 to collect dual power supply interlocks Outgoing three-phase voltage of the switch 109, the first three of the 9 current access terminals 1052 are respectively connected to the three-phase current interface of the current transformer 107 to collect the three-phase current of the current transformer 107; current access to the fourth channel of the terminal 1052 Connect the leakage current transformer 108 to collect the three-phase incoming leakage current of the leakage current transformer 108; the fifth, sixth, seventh and eighth paths of the current access terminal 1052 respectively pass through four single-phase current transformers 1010 , Collect the outgoing current of four AC contactors 103; 8 DI ports 1053 and 8 DO ports 1054, connected in eight pairs to the ports of four AC contactors 103 and four ports of electronic door lock 5; RS485 interface 1055 Configure communication equipment with 4G module 1056 to communicate with external systems and equipment.

The base station intelligent electricity management and control terminal 105 of the present invention has a sub-operator metering function and an operator power distribution management function. The sub-operator metering function specifically includes: through the collected three-phase incoming line voltage, incoming line current, and four AC contactors Calculate the 15-minute, daily, monthly, and annual cumulative power value of the total station power consumption, mobile, telecommunications, and China Unicom; support 15-minute time-level cumulative power, daily cumulative power, monthly cumulative power, and annual cumulative power cycle Send; support daily, monthly, and annual cumulative power values, and send them independently by operators; support 15 branch-level real-time voltage and current periodic uploads. The operator’s power distribution management functions specifically include: through the collected three-phase incoming line leakage current value, the equipment leakage current threshold can be used to trigger the transmission of a leakage alarm event that exceeds the threshold; the terminal has the control capability of four AC contactors to provide sub-operations The contactor of commercial equipment remotely controls the communication interface, and other systems and equipment can issue power-off and recovery control instructions to power off and recover the operator’s overall equipment through the remote control communication interface; the terminal has the ability to control the switch position of four electronic door locks , Provide sub-operator distribution box remote opening and closing communication interface, main distribution box remote opening and closing communication interface, other systems and equipment can issue cabinet door opening control instructions through remote control communication interface, and perform control on the corresponding distribution box. Open the box; the terminal has the ability to collect the switch position of four electronic door locks, and can analyze the abnormal state of the four cabinet doors to generate the abnormal event of the cabinet door and send it. The abnormal state judgment logic is: when the cabinet door is open and there is no corresponding configuration The door opening control command of the electric box door; or there is a door opening control command corresponding to the distribution box door, but the door is opened for more than 1 hour; the terminal has the switch position acquisition and control capabilities of four electronic door locks, which can be When the cabinet door changes from open to closed state, with a delay of 10 seconds, a close signal is sent to the corresponding electronic door lock through the DO port to lock the cabinet door.

By providing an intelligent power distribution box suitable for AC communication base stations, the present invention realizes operator commercial power branch metering and operator power distribution intelligent management and control, thereby avoiding unauthorized connection, improving the management level of AC communication base stations, and providing intelligent use for base stations. Provide conditions for the construction of the electricity operation management and control system.

For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended to fall within the claims. All changes within the meaning and scope of the equivalent elements of are included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

In addition, it should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only includes an independent technical solution. This narration in the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole The technical solutions in the various embodiments can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

An intelligent power distribution box suitable for AC communication base stations, which is characterized in that it includes a main power distribution box (1), a mobile power distribution box (2), a Unicom power distribution box (3) and a telecommunications power distribution box (4),

The main distribution box (1) includes a diesel engine power interface (101), a power grid inlet interface (102), four AC contactors (103), a base station intelligent power control terminal (105), and an air switch (106) , Three-phase current transformer (107), leakage current transformer (108), dual power supply interlock switch (109) and single-phase current transformer (1010),

Both the diesel engine power supply interface (101) and the power grid inlet interface (102) are connected to a dual power supply interlock switch (109) through three-phase wiring, and the output end of the dual power supply interlock switch (109) is divided into four lines, respectively After passing through the four AC contactors (103), they are respectively connected to the inside of the main distribution box (1), the mobile distribution box (2), the Unicom distribution box (3) and the telecommunications distribution box (4);

The dual power supply interlock switch (109) has an independent three-phase line outgoing through the air switch (106), and then connects to the base station intelligent electricity control terminal (105), which serves as the base station intelligent electricity control terminal (105) The power supply of the base station, the intelligent power control terminal (105) of the base station realizes the three-phase voltage collection of the connected power;

The three-phase current transformer (107) and the leakage current transformer (108) are provided on the connection line between the grid inlet interface (102) and the dual power supply interlock switch (109), and the dual power supply interlock switch ( 109) The single-phase current transformer (1010) is provided on the connection lines with the four AC contactors (103), and the base station intelligent power control terminal (105) is connected to the three-phase current transformer (107) ) And the four single-phase current transformers (1010), the base station intelligent power management terminal (105) collects the three-phase current of the total incoming line through the three-phase current transformer (107), and then through the single-phase current transformer (1010) Collect the four-way outgoing current of the dual power supply interlock switch (109), and collect the three-phase total incoming line leakage current through the leakage current transformer (108).
The intelligent power distribution box according to claim 1, characterized in that: the main power distribution box (1), the mobile power distribution box (2), the Unicom power distribution box (3) and the telecommunications power distribution box (4) There are electronic door locks (5) on the shells, which are used to carry out the housing of the main distribution box (1), mobile distribution box (2), Unicom distribution box (3) and telecommunications distribution box (4). Locked, the main distribution box (1), mobile distribution box (2), Unicom distribution box (3) and telecommunications distribution box (4) are respectively provided with a station air switch group (104), mobile The electric air switch group (201) for the equipment of the operator, the electric air switch group (301) for the equipment of China Unicom and the air switch group (401) for the equipment of the telecom operator, the output of the dual power supply interlock switch (109) After the four lines pass through the four AC contactors (103) respectively, they pass through the electric air switch group (104) for the access station, the electric air switch group for mobile operator equipment (201), and the equipment used by China Unicom. Electric air switch group (301) and telecommunications operator equipment electric air switch group (401) to connect the main distribution box (1), mobile distribution box (2), Unicom distribution box (3) and telecommunications power distribution box respectively Box (4) The internal structure of the above four.
The intelligent power distribution box according to claim 2, characterized in that: the base station intelligent power consumption control terminal (105) includes a three-phase voltage access terminal (1051), 9 current access terminals (1052), and 8 current access terminals (1052). DI port (1053), 8 D0 ports (1054), 1 RS485 interface (1055) and 1 4G module (1056). The base station intelligent electricity control terminal (105) is used for sub-operator metering and measurement The operator conducts power distribution management;

The three-phase voltage access terminal (1051) is connected to the output terminal of the dual power supply interlock switch (109), and the three-phase voltage of the output line of the dual power supply interlock switch (109) is collected. The first three paths of the terminal (1052) are respectively connected to the three-phase current interface of the current transformer (107) to collect the three-phase current of the current transformer (107); the fourth path of the current access terminal (1052) is connected to the The leakage current transformer (108) collects the leakage current of the three-phase incoming line of the leakage current transformer (108); the fifth, sixth, seventh and eighth routes of the current access terminal (1052) respectively pass through four One of the single-phase current transformers (1010) collects the outgoing current of the four AC contactors (103); eight of the DI ports (1053) and eight of the D0 ports (1054) are in eight pairs Connect the four ports of the AC contactor (103) and the four ports of the electronic door lock (5) respectively; the RS485 interface (1055) and the 4G module (1056) are configured with communication equipment to communicate with external systems and equipment communication.