CN110609185A - Precise power distribution monitoring management system for 5G base station - Google Patents
Precise power distribution monitoring management system for 5G base station Download PDFInfo
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- CN110609185A CN110609185A CN201910795498.8A CN201910795498A CN110609185A CN 110609185 A CN110609185 A CN 110609185A CN 201910795498 A CN201910795498 A CN 201910795498A CN 110609185 A CN110609185 A CN 110609185A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 20
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention relates to a precise power distribution monitoring and management system for a 5G base station, which comprises the following steps: the incoming line monitoring module measures power grid parameters of a plurality of three-phase incoming line loops, and judges the opening and closing of a circuit breaker of each single-phase incoming line loop through voltage measurement of each single-phase incoming line loop; the direct-current feeder monitoring module measures power grid parameters of the direct-current feeder loops, and the opening and closing of circuit breakers of the direct-current feeder loops are judged by measuring the voltage of each direct-current feeder loop; the alternating-current feeder line monitoring module measures power grid parameters of a plurality of single-phase feeder line loops, and the opening and closing of a circuit breaker of each single-phase feeder line loop are judged by measuring the voltage of each single-phase feeder line loop; the switching value monitoring module monitors the switching states of the direct current feeder line loop and the alternating current feeder line loop; the current transformer measures the current of the incoming line loop and the alternating current feeder loop; the Hall sensor measures the current of the direct-current feeder line loop; the power supply module provides a working power supply for the human-computer interface and the incoming line detection module; and the human-computer interface displays the power grid parameters and the state of the switch circuit breaker.
Description
Technical Field
The invention relates to the technical field of electric power instruments, in particular to a precise power distribution monitoring and management system for a 5G base station.
Background
With the increasing maturity of 5G communication technology, commercial 5G network construction has also been gradually developed. Compared with the 4G communication technology, the 5G network adopts different technical standards, the wireless device uses a higher frequency band of 3.5GHz intermediate frequency, the signal range coverage is reduced, the number of sites required to be built is increased, and the power of the wireless master device of each site is correspondingly increased. A typical 5G single-station device group includes a baseband processing unit (BBU), a Radio Remote Unit (RRU), an antenna, an IPRAN product, a blade power supply, and other devices, and the number of the devices required in different base stations is different based on different performance, needs, compatibility, and requirements for use. Compared with the 4G base station, the power supply of the 5G base station mainly has the following problems: firstly, the power demand is greatly increased, and the typical power of a base station carrying all equipment of three operators is not less than 18 kW; secondly, the heat dissipation problem is prominent, and the working temperature of the equipment cannot exceed 55 ℃; thirdly, in order to avoid lightning stroke and conduct electricity, the RRU needs to be powered by direct current. In view of the complicated accurate distribution demand of 5G basic station, a reliable and stable power supply environment could make equipment well operation, consequently is essential to the monitoring and the management of accurate distribution, is favorable to in time discovering the problem that every equipment power supply exists, effectively avoids safety problem and loss of property because of the distribution problem brings.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides a novel 5G base station-oriented precise power distribution monitoring and management system.
The invention solves the technical problems through the following technical scheme:
the invention provides a precise power distribution monitoring management system facing a 5G base station, which is characterized by comprising an incoming line monitoring module, a feeder line monitoring module, a switching value monitoring module, a current transformer, a Hall sensor, a power supply module and a human-computer interface, wherein the feeder line monitoring module comprises a direct current feeder line monitoring module and an alternating current feeder line monitoring module;
the three-phase incoming line loop is connected to the incoming line monitoring module through a current transformer, the direct current feeder loop is connected to the direct current feeder monitoring module through a Hall sensor, the alternating current feeder loop is connected to the alternating current feeder monitoring module through the current transformer, each feeder loop is respectively connected to the switching value monitoring module, and each feeder monitoring module and the switching value monitoring module are communicated with the incoming line monitoring module through a connecting line;
the incoming line monitoring module is used for measuring power grid parameters of a plurality of three-phase incoming line loops and judging the opening and closing of a switch breaker of each single-phase incoming line loop by measuring the voltage of each single-phase incoming line loop;
the direct-current feeder line monitoring module is used for measuring the power grid parameters of the direct-current feeder line loops and judging the opening and closing of a switch circuit breaker of each direct-current feeder line loop by measuring the voltage of the direct-current feeder line loop;
the alternating-current feeder line monitoring module is used for measuring power grid parameters of a plurality of single-phase feeder line loops and judging the opening and closing of a switch circuit breaker of each single-phase feeder line loop by measuring the voltage of each single-phase feeder line loop;
the switching value monitoring module is used for monitoring the switching states of the direct-current feeder line loop and the alternating-current feeder line loop;
the current transformer is used for measuring the current of the incoming line loop and the alternating current feeder loop;
the Hall sensor is used for measuring the current of the direct current feeder line loop;
the power supply module is used for providing a DC24V working power supply for the human-computer interface and the incoming line detection module;
the human-computer interface is used for displaying the power grid parameters of the three-phase incoming line loop, the power grid parameters of the direct current and alternating current feeder line loops and the state of the switch circuit breaker.
Preferably, the incoming line monitoring module comprises: the system comprises an MCU chip, a three-phase voltage and current analog quantity input circuit, a metering chip, a switching value input circuit, a relay output circuit, a clock chip, an HMI communication interface, a PC communication interface and two bus interfaces;
the three-phase voltage and current analog input circuit is electrically connected with the metering chip, and the metering chip, the switching value input circuit, the relay output circuit, the clock chip, the HMI communication interface, the PC communication interface and the two bus interfaces are electrically connected with the MCU chip;
the metering chip is used for sampling the voltage and the current of the three-phase voltage and current analog quantity input circuit and transmitting the voltage and the current to the MCU chip; the MCU chip is used for carrying out electric energy accumulation and electric energy quality analysis on the received electric quantity data; the two bus interfaces are used for expanding the feeder line monitoring module and the switching value monitoring module; the switching value input circuit is 4 passive dry contacts, and a direct-current power supply is arranged in the switching value input circuit and is used for monitoring the states of a switch and a lightning protection device of the incoming line breaker; the relay output circuit is used for alarming and outputting; the HMI communication interface is connected with the human-computer interface to transmit data to the background system, and the PC communication interface is connected with the PC to transmit data to the background system.
Preferably, the feeder monitoring module comprises an MCU chip, a voltage-current analog input circuit, a metering chip, a clock chip and two bus interfaces, the three-phase voltage-current analog input circuit is electrically connected to the metering chip, and the metering chip, the clock chip and the two bus interfaces are electrically connected to the MCU chip.
Preferably, the feeder voltage measured by the direct current feeder monitoring module is switched on when the feeder voltage is greater than 40V, and is switched off when the feeder voltage is less than 30V; when the feeder voltage measured by the alternating current feeder monitoring module is greater than 120V, the switch-on is performed, and when the feeder voltage is less than 110V, the switch-off is performed.
Preferably, the switching value monitoring module includes an MCU chip, a clock chip, two bus interfaces and a switching value input circuit, and the clock chip, the two bus interfaces and the switching value input circuit are all electrically connected to the MCU chip.
Preferably, the current transformer is a closed current transformer, and the closed current transformer is SHI-BCT100 II.
Preferably, the Hall sensor is a closed Hall sensor, and the closed Hall sensor is WHK100BSU15D 4.
Preferably, the incoming line monitoring module is further configured to alarm the three-phase incoming line loop in real time and set alarm thresholds of the three-phase incoming line loop, including alarm enabling and alarm threshold setting of upper, lower, and lower limits of phase voltage, line voltage, current, split-phase active power, total reactive power, total power factor, frequency, zero ground voltage, zero sequence current, current imbalance, and temperature.
Preferably, the feeder monitoring module is configured to alarm the feeder circuit in real time and perform alarm threshold setting on each branch of the feeder circuit, where the alarm threshold setting includes alarm enabling and alarm threshold setting of upper, lower, and lower limits of current and active power.
Preferably, the switching value module is used for setting alarm enabling and switching-off and switching-on alarm of each branch of the feeder circuit.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the invention monitors and manages the precise power distribution, is beneficial to finding out the problem of power supply of each device in time, and effectively avoids the safety problem and property loss caused by the power distribution problem.
Drawings
Fig. 1(a) is a schematic wiring diagram of the precision power distribution monitoring and management system of the present invention, and fig. 1(b) is a typical wiring diagram of the precision power distribution monitoring and management system of the present invention.
Fig. 2(a) is a composition diagram of the incoming line monitoring module of the present invention, and fig. 2(b) is a wiring diagram of the incoming line monitoring module of the present invention.
Fig. 3(a) is a composition diagram of a feeder monitoring module of the present invention, fig. 3(b) is a wiring diagram of a dc feeder monitoring module of the present invention, and fig. 3(c) is a wiring diagram of an ac feeder monitoring module of the present invention.
Fig. 4(a) is a block diagram of the switching value monitoring module according to the present invention, and fig. 4(b) is a wiring diagram of the switching value monitoring module according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1(a) and 1(b), this embodiment provides a precision power distribution monitoring management system facing a 5G base station, which includes an incoming line monitoring module, a feeder line monitoring module, a switching value monitoring module, a current transformer, a hall sensor, a power supply module, and a human-computer interface, where the feeder line monitoring module includes a dc feeder line monitoring module and an ac feeder line monitoring module.
The three-phase incoming line loop is connected to the incoming line monitoring module through the closed current transformer, the 48V direct current feeder loop is connected to the direct current feeder monitoring module through the closed Hall sensor, the 220V alternating current feeder loop is connected to the alternating current feeder monitoring module through the closed current transformer, each feeder loop is connected to the switching value monitoring module, and each feeder monitoring module and the switching value monitoring module are communicated with the incoming line monitoring module through a connecting line.
The incoming line monitoring module is used for measuring power grid parameters of 2 three-phase incoming line loops and judging the opening and closing of a switch breaker of each single-phase incoming line loop by measuring the voltage of each single-phase incoming line loop.
The direct-current feeder line monitoring module is used for measuring the power grid parameters of the direct-current feeder line loops and judging the opening and closing of the switch circuit breakers of the direct-current feeder line loops by measuring the voltage of each direct-current feeder line loop.
The alternating-current feeder monitoring module is used for measuring power grid parameters of a plurality of (for example, 30) single-phase feeder circuits, and judging the opening and closing of a switch breaker of each single-phase feeder circuit through the measurement of the voltage of the single-phase feeder circuit.
The switching value monitoring module is used for monitoring the switching states of the direct-current feeder line loop and the alternating-current feeder line loop.
And the closed current transformer SHI-BCT100 II is used for measuring the current of the incoming line loop and the alternating current feeder loop, and the maximum measuring current is 120A.
A closed hall sensor WHK100BSU15D4, nominal input signal 100A, for measuring the current of the dc feeder loop.
The power supply module is used for providing a DC24V working power supply for the human-computer interface and the incoming line detection module, and also can provide an external power supply for the switching value input of the switching value monitoring module.
The human-computer interface is used for displaying the power grid parameters of the three-phase incoming line loop, the power grid parameters of the direct current and alternating current feeder line loops and the state of the switch circuit breaker.
Wherein, as shown in fig. 2(a) and 2(b), the incoming line monitoring module includes: MCU chip, three-phase voltage electric current analog quantity input circuit, measurement chip RN7302, switching value input circuit, relay output circuit, clock chip RTC, HMI communication interface, PC communication interface and two bus interface (RS485 interfaces), the STM32F103RC chip is selected for use to the MCU chip.
The three-phase voltage and current analog quantity input circuit is electrically connected with the metering chip RN7302, and the metering chip RN7302, the switching value input circuit, the relay output circuit, the clock chip RTC, the HMI communication interface, the PC communication interface and the two bus interfaces are electrically connected with the MCU chip.
The metering chip RN7302 is used for sampling the voltage and the current of the three-phase voltage and current analog quantity input circuit and transmitting the voltage and the current to the MCU chip; the MCU chip is used for carrying out electric energy accumulation and electric energy quality analysis on the received electric quantity data; the two bus interfaces are used for expanding the feeder line monitoring module and the switching value monitoring module; the switching value input circuit is 4 passive dry contacts, and a direct-current power supply is arranged in the switching value input circuit and is used for monitoring the states of a switch and a lightning protection device of the incoming line breaker; the relay output circuit is used for alarming and outputting; the HMI communication interface is connected with the human-computer interface to transmit data to the background system, and the PC communication interface is connected with the PC to transmit data to the background system. The incoming line monitoring module monitors parameters such as phase voltage, line voltage, zero ground voltage, phase current, voltage/current unbalance, active power, reactive power, apparent power, power factor, frequency, bidirectional active and reactive power, voltage/current total harmonic distortion rate and subharmonic content (2-63 times), temperature and the like of an incoming line loop in real time. The system has a multi-rate electric energy record and stores the electric energy in the last 10 years. There are 1024 SOE event records, 1024 real-time alarm records, 12800 alarm records. The wiring diagram of the incoming line monitoring module is shown in fig. 2 (b).
As shown in fig. 3(a), 3(b) and 3(c), the feeder line monitoring module includes an MCU chip, a voltage-current analog input circuit, a metering chip RN7302, a clock chip RTC and two bus interfaces (i.e., RS485 interfaces), the three-phase voltage-current analog input circuit is electrically connected to the metering chip, and the metering chip, the clock chip and the two bus interfaces are electrically connected to the MCU chip. The power grid parameters of 15/30 single-phase loops are measured, wherein the parameters comprise voltage, current, power, electric energy, demand, extreme values, harmonic waves and the like, and the monitoring module can be expanded through the bus interface. And the system is divided into a direct current feeder monitoring module and an alternating current feeder monitoring module according to the difference of the measured feeder voltage, and the direct current feeder and the alternating current feeder are measured respectively.
The circuit breaker of the circuit switch can be judged to be switched on and switched off by measuring the voltage of each circuit, the direct current feeder line monitoring module is switched on when the voltage of the feeder line measured by the direct current feeder line monitoring module is greater than 40V, and is switched off when the voltage of the feeder line measured by the direct current feeder line monitoring module is less than 30V; when the feeder voltage measured by the alternating current feeder monitoring module is greater than 120V, the switch-on is performed, and when the feeder voltage is less than 110V, the switch-off is performed. The wiring diagrams of the feeder monitoring module are shown in fig. 3(b) and 3 (c).
As shown in fig. 4(a) and 4(b), the switching value monitoring module includes: MCU chip, clock chip, two bus interface (be RS485 interfaces) and switching value input circuit. And the 60-path switch state is monitored, the active wet contact is connected, the monitoring module can be expanded through the bus interface, and the clock chip, the two bus interfaces and the switching value input circuit are electrically connected with the MCU chip. The connection diagram of the terminals 300 and 305 of the switching value monitoring module is shown in fig. 4(b), and other circuits are similar.
The current transformer is a closed current transformer, and the closed current transformer is SHI-BCT100 II.
The Hall sensor is a closed Hall sensor, and the closed Hall sensor is WHK100BSU15D 4.
The hot plug device supports hot plug of the expansion module, and can carry out module installation or replacement work in a working state.
The incoming line monitoring module is also used for real-time alarming of the three-phase incoming line loop and setting alarming threshold values of the three-phase incoming line loop, and comprises alarming enabling and alarming threshold value setting of upper limit, lower limit and lower limit of phase voltage, line voltage, current, split-phase active power, total reactive power, total power factor, frequency, zero ground voltage, zero sequence current, current unbalance and temperature.
The feeder line monitoring module is used for real-time alarming of the feeder line loop and setting alarm threshold values of each branch of the feeder line loop, wherein the alarm threshold values comprise alarm enabling values and alarm threshold setting values of upper limit, lower limit and lower limit of current and active power.
And the switching value module is used for carrying out alarm enabling setting and switching-off and switching-on alarm setting on each branch of the feeder circuit.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A precision power distribution monitoring management system facing a 5G base station is characterized by comprising an incoming line monitoring module, a feeder line monitoring module, a switching value monitoring module, a current transformer, a Hall sensor, a power supply module and a human-computer interface, wherein the feeder line monitoring module comprises a direct current feeder line monitoring module and an alternating current feeder line monitoring module;
the three-phase incoming line loop is connected to the incoming line monitoring module through a current transformer, the direct current feeder loop is connected to the direct current feeder monitoring module through a Hall sensor, the alternating current feeder loop is connected to the alternating current feeder monitoring module through the current transformer, each feeder loop is respectively connected to the switching value monitoring module, and each feeder monitoring module and the switching value monitoring module are communicated with the incoming line monitoring module through a connecting line;
the incoming line monitoring module is used for measuring power grid parameters of a plurality of three-phase incoming line loops and judging the opening and closing of a switch breaker of each single-phase incoming line loop by measuring the voltage of each single-phase incoming line loop;
the direct-current feeder line monitoring module is used for measuring the power grid parameters of the direct-current feeder line loops and judging the opening and closing of a switch circuit breaker of each direct-current feeder line loop by measuring the voltage of the direct-current feeder line loop;
the alternating-current feeder line monitoring module is used for measuring power grid parameters of a plurality of single-phase feeder line loops and judging the opening and closing of a switch circuit breaker of each single-phase feeder line loop by measuring the voltage of each single-phase feeder line loop;
the switching value monitoring module is used for monitoring the switching states of the direct-current feeder line loop and the alternating-current feeder line loop;
the current transformer is used for measuring the current of the incoming line loop and the alternating current feeder loop;
the Hall sensor is used for measuring the current of the direct current feeder line loop;
the power supply module is used for providing a working power supply for the human-computer interface and the incoming line detection module;
the human-computer interface is used for displaying the power grid parameters of the three-phase incoming line loop, the power grid parameters of the direct current and alternating current feeder line loops and the state of the switch circuit breaker.
2. The precise power distribution monitoring and management system for the 5G base station as recited in claim 1, wherein the incoming line monitoring module comprises: the system comprises an MCU chip, a three-phase voltage and current analog quantity input circuit, a metering chip, a switching value input circuit, a relay output circuit, a clock chip, an HMI communication interface, a PC communication interface and two bus interfaces;
the three-phase voltage and current analog input circuit is electrically connected with the metering chip, and the metering chip, the switching value input circuit, the relay output circuit, the clock chip, the HMI communication interface, the PC communication interface and the two bus interfaces are electrically connected with the MCU chip;
the metering chip is used for sampling the voltage and the current of the three-phase voltage and current analog quantity input circuit and transmitting the voltage and the current to the MCU chip; the MCU chip is used for carrying out electric energy accumulation and electric energy quality analysis on the received electric quantity data; the two bus interfaces are used for expanding the feeder line monitoring module and the switching value monitoring module; the switching value input circuit is 4 passive dry contacts, and a direct-current power supply is arranged in the switching value input circuit and is used for monitoring the states of a switch and a lightning protection device of the incoming line breaker; the relay output circuit is used for alarming and outputting; the HMI communication interface is connected with the human-computer interface to transmit data to the background system, and the PC communication interface is connected with the PC to transmit data to the background system.
3. The precise power distribution monitoring and management system facing the 5G base station as claimed in claim 1, wherein the feeder monitoring module comprises an MCU chip, a voltage and current analog input circuit, a metering chip, a clock chip and two bus interfaces, the three-phase voltage and current analog input circuit is electrically connected with the metering chip, and the metering chip, the clock chip and the two bus interfaces are electrically connected with the MCU chip.
4. The precise power distribution monitoring and management system facing a 5G base station as claimed in claim 1, wherein the feeder voltage measured by the direct current feeder monitoring module is switched on when being greater than 40V and is switched off when being less than 30V; when the feeder voltage measured by the alternating current feeder monitoring module is greater than 120V, the switch-on is performed, and when the feeder voltage is less than 110V, the switch-off is performed.
5. The precise power distribution monitoring and management system facing the 5G base station as claimed in claim 1, wherein the switching value monitoring module comprises an MCU chip, a clock chip, two bus interfaces and a switching value input circuit, and the clock chip, the two bus interfaces and the switching value input circuit are all electrically connected with the MCU chip.
6. The precise power distribution monitoring and management system facing a 5G base station as claimed in claim 1, wherein the current transformer is a closed current transformer, and the closed current transformer is SHI-BCT100 II.
7. The 5G base station-oriented precise power distribution monitoring and management system as claimed in claim 1, wherein the Hall sensor is a closed Hall sensor, and the closed Hall sensor is WHK100BSU15D 4.
8. The precision power distribution monitoring and management system facing a 5G base station as claimed in claim 1, wherein the incoming line monitoring module is further used for real-time alarming of the three-phase incoming line loop and setting alarming threshold values of the three-phase incoming line loop, including alarming enabling and alarming threshold setting of upper, lower and lower limits of phase voltage, line voltage, current, split-phase active power, total reactive power, total power factor, frequency, zero ground voltage, zero sequence current, current unbalance and temperature.
9. The precision power distribution monitoring management system facing a 5G base station as claimed in claim 1, wherein the feeder monitoring module is used for real-time alarming of the feeder loop and alarm threshold setting of each branch of the feeder loop, including alarm enabling and alarm threshold setting of upper, lower and lower limits of current and active power.
10. The precise power distribution monitoring and management system facing a 5G base station as claimed in claim 1, wherein the switching value module is used for setting alarm enabling and switching-off and switching-on alarm for each branch of the feeder circuit.
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