CN113300474A - DC distribution power consumption early warning control system - Google Patents
DC distribution power consumption early warning control system Download PDFInfo
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- CN113300474A CN113300474A CN202110695670.XA CN202110695670A CN113300474A CN 113300474 A CN113300474 A CN 113300474A CN 202110695670 A CN202110695670 A CN 202110695670A CN 113300474 A CN113300474 A CN 113300474A
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
Abstract
The application relates to a direct current distribution power consumption early warning control system, which comprises direct current distribution equipment, power consumption monitoring equipment, switch equipment and main control equipment. The direct current distribution equipment provides direct current, and the power consumption monitoring equipment is electrically connected with the direct current distribution equipment and each load shunt respectively and is used for acquiring power consumption data of each load shunt, wherein the power consumption data can visually reflect whether a private load or private capacity expansion and other behaviors exist in each load shunt. The switch equipment is electrically connected with the direct current distribution equipment and each load branch circuit respectively, and can independently control the on-off of each load branch circuit. The main control device is electrically connected with the power consumption monitoring device and the switch device respectively, receives the power consumption data, and judges whether phenomena such as private load connection or private capacity expansion exist according to a preset power consumption data threshold value of each load shunt and the power consumption data corresponding to the power consumption data threshold value, so that a control signal is generated and sent to the corresponding switch device to control the connection and disconnection of the corresponding load shunt, and therefore electricity charge dispute is avoided.
Description
Technical Field
The application relates to the technical field of switching power supply direct current power distribution, in particular to a direct current power distribution power consumption early warning control system.
Background
In the process of providing services by the iron tower company, because individual tenants carry loads privately or expand privately, an electric charge dispute may exist between the iron tower company and the tenants.
However, the conventional switching power supply dc distribution system adopts a simple primary or secondary power-down-based control mode, which performs undifferentiated power supply after the commercial power of the base station is cut off. The undifferentiated power supply mode can not solve the problem of electric charge disputes, and can also cause insufficient power supply of the original equipment, thereby influencing the station-breaking index assessment.
Disclosure of Invention
Therefore, it is necessary to provide a dc power distribution power consumption early warning control system for solving the problem of disputes of electric charges caused by private load or private capacity expansion in the conventional dc power distribution power consumption early warning control system.
The application provides a direct current distribution power consumption early warning control system, includes:
the direct current distribution equipment is used for providing direct current for a plurality of load branches;
the power consumption monitoring equipment is electrically connected with the direct current distribution equipment and each load shunt circuit respectively and is used for acquiring power consumption data of each load shunt circuit;
the switch equipment is electrically connected with the direct current distribution equipment and each load shunt circuit respectively and is used for independently controlling the on-off of each load shunt circuit; and
and the main control equipment is electrically connected with the power consumption monitoring equipment and the switch equipment respectively and is used for receiving the power consumption data, generating a control signal according to a preset power consumption data threshold value of each load shunt and the power consumption data corresponding to the power consumption data threshold value, sending the control signal to the corresponding switch equipment to control the on-off of the corresponding load shunt, and sending a power consumption abnormity warning signal to a preset terminal.
In one embodiment, the dc power distribution power consumption early warning control system further includes a shunt overcurrent early warning device, where the shunt overcurrent early warning device is electrically connected to each load shunt and the main control device, and is configured to detect an output current of each load shunt and send the output current to the main control device, and the main control device generates a capacity early warning control signal according to the output current, a preset rated current, and a preset turn-off current, so as to control the switching on and off of the corresponding switching device.
In one embodiment, the dc distribution power consumption early warning control system further comprises a standby power demand detection device, the standby power demand detection device is connected with each load branch circuit, the switch device and the main control device are electrically connected respectively and used for detecting the alternating voltage of the switch device and sending the alternating voltage to the main control device, the main control device judges a power supply mode according to the alternating voltage and generates a power supply mode control signal according to the power supply mode and a preset power supply mode so as to control the switching of the switch device, and the preset power supply mode is mains supply or alternating current oil engine supply.
In one embodiment, the number of power consumption monitoring devices and the number of switching devices are both greater than the number of load shunts.
In one embodiment, the dc power distribution power consumption early warning control system further includes:
and the load shunt expansion equipment is electrically connected with the direct current distribution equipment through the switch equipment and is electrically connected with the power consumption monitoring equipment, wherein the switch equipment and the power consumption monitoring equipment are in one-to-one correspondence with load shunts in the load shunt expansion equipment.
In one embodiment, the dc power distribution apparatus includes:
the alternating current distribution unit is used for outputting alternating current; and
and the rectifying unit is electrically connected with the alternating current distribution unit and is used for converting alternating current provided by the alternating current distribution unit into direct current.
In one of them embodiment, direct current distribution equipment still includes battery spare power unit, battery spare power unit with the rectifier unit with the master control equipment electricity is connected, battery spare power unit is used for passing through when the commercial power supplies the rectifier unit charges to provide the spare power service after the commercial power has a power failure, master control equipment generates the spare power control signal according to the commercial power state and predetermines the power supply demand, with the control correspond battery spare power unit charges or for corresponding load power supply along separate routes.
In one embodiment, the switching device comprises:
the branch electronic switch is connected between the direct current distribution equipment and each load branch in series and used for controlling the on-off of the corresponding load branch; and
and the shunt control unit is electrically connected with the main control equipment and the shunt electronic switch respectively and is used for receiving the control signal sent by the main control equipment and controlling the shunt electronic switch to be switched on and off according to the control signal.
In one embodiment, the master device includes:
the direct current distribution control unit is electrically connected with the power consumption monitoring equipment and the switch equipment respectively; and
and the switching power supply control unit is electrically connected with the direct current power distribution control unit and used for receiving the power consumption data through the direct current power distribution control unit and generating an intermediate control signal according to the power consumption data, and the direct current power distribution control unit generates the control signal according to the intermediate control signal.
In one embodiment, the dc power distribution power consumption early warning control system further includes:
the intelligent moving loop monitoring equipment is electrically connected with the switching power supply control unit and is used for receiving the power consumption data, sending the power consumption data to a terminal, receiving a remote control signal of the terminal and sending the remote control signal to the switching power supply control unit so that the switching power supply control unit generates the intermediate control signal; the intelligent moving ring monitoring equipment is electrically connected with the main control equipment through an RS485 interface.
The application provides a direct current distribution consumption early warning control system, including direct current distribution equipment, consumption monitoring facilities, switchgear and master control equipment. The dc distribution device provides dc power to a plurality of load branches. The power consumption monitoring equipment is electrically connected with the direct current distribution equipment and each load shunt respectively and is used for acquiring power consumption data of each load shunt, wherein the power consumption data can visually reflect whether a private load is connected or the capacity is expanded privately and other behaviors exist in each load shunt. The switch equipment is electrically connected with the direct current distribution equipment and each load branch circuit respectively, and can independently control the on-off of each load branch circuit. The main control device is electrically connected with the power consumption monitoring device and the switch device respectively, receives the power consumption data, and judges whether phenomena such as private load connection or private capacity expansion exist according to a preset power consumption data threshold value of each load shunt and the power consumption data corresponding to the power consumption data threshold value, so that a control signal is generated and sent to the corresponding switch device to control the connection and disconnection of the corresponding load shunt, and therefore electricity charge dispute is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an electrical connection schematic diagram of a dc power distribution power consumption early warning control system according to an embodiment of the present disclosure;
fig. 2 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system according to an embodiment of the present disclosure;
fig. 3 is a flow chart of warning or turning off the load shunt output current capacity by the dc power distribution power consumption warning control system according to the embodiment of the present disclosure;
fig. 4 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system according to an embodiment of the present disclosure;
fig. 5 is a flowchart illustrating a power supply process of a differentiated ac engine by detecting an ac voltage in the dc power distribution power consumption early warning control system according to the embodiment of the present application;
fig. 6 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system provided in the embodiment of the present application;
fig. 7 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system provided in the embodiment of the present application;
fig. 8 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system provided in the embodiment of the present application;
fig. 9 is an electrical connection schematic diagram of another dc power distribution power consumption early warning control system provided in the embodiment of the present application;
fig. 10 is a flowchart of differentiated standby power supply and charging of different storage batteries used in a dc power distribution power consumption early warning control system according to an embodiment of the present disclosure.
Description of the reference numerals
100. A DC distribution power consumption early warning control system; 110. a direct current power distribution device; 111. an alternating current power distribution unit; 112. a rectifying unit; 113. a battery backup unit; 120. a power consumption monitoring device; 121. a voltage sampling unit; 122. a current sampling unit; 123. a power consumption monitoring unit; 130. a switching device; 131. a shunt electronic switch; 132. a shunt control unit; 133. an alert device; 140. a master control device; 141. a direct current distribution control unit; 142. a switching power supply control unit; 150. a load shunt extension device; 160. intelligent dynamic loop monitoring equipment; 170. shunt overcurrent early warning equipment; 180. a standby power demand detection apparatus.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present application provides a dc power distribution power consumption early warning control system 100. The dc power distribution power consumption early warning control system 100 includes a dc power distribution device 110, a power consumption monitoring device 120, a switching device 130, and a main control device 140. The dc distribution device 110 is configured to provide dc power to a plurality of load branches. The power consumption monitoring device 120 is electrically connected to the dc power distribution device 110 and each load branch, respectively, and is configured to obtain power consumption data of each load branch. The switching device 130 is electrically connected to the dc distribution device 110 and each of the load branches, and is configured to independently control on/off of each of the load branches. The main control device 140 is electrically connected to the power consumption monitoring device 120 and the switch device 130, and configured to receive power consumption data, generate a control signal according to a preset power consumption data threshold of each load branch and the power consumption data corresponding to the preset power consumption data threshold, send the control signal to the corresponding switch device 130 to control on/off of the corresponding load branch, and send a power consumption abnormality alarm signal to the preset terminal.
In one embodiment, after the commercial power is cut off, the dc power distribution consumption warning control system 100 may use the dc power distribution device 110 to supply power to the dc loads of the users. In this embodiment, the dc power distribution device 110 may include a backup battery. In one embodiment, the dc power distribution device 110, the power consumption monitoring device 120, the switching device 130, and the corresponding load branches are sequentially connected, that is, the dc power output by the dc power distribution device 110 first passes through the power consumption monitoring device 120, then passes through the switching device 130, and finally is provided to the load devices in the load branches.
In one embodiment, the power consumption monitoring device 120 may separately acquire the output current and the output voltage of each load branch, and simultaneously may obtain various parameters such as the total current, the power, the electric energy, the standby power time, and the like, and monitor the load power of the load branch in real time, so as to provide support for the main control device 140 to control the switch device 130 to implement the power-on and power-off management of the dc load of the user. It can be understood that when the power consumption data of the load shunt abnormally fluctuates, the main control device 140 may perform intelligent abnormal early warning, so as to avoid electric charge disputes among operators and between the operators and the iron tower company, and achieve accurate management of electric charges.
In one embodiment, by setting the switch device 130, the load branches corresponding to each air switch can be individually controlled, that is, the tenant attribute of each load branch can be independently defined, so that tenants can be flexibly grouped according to different requirements such as time and/or electricity charges, and refined electricity management of different load branches can be realized. The settings of the switching device 130 may implement a flexible power-up and power-down policy for each load shunt to accommodate various regulatory scenarios. In one embodiment, the switching device 130 may perform a timed on/off operation on different load branches, perform an on/off operation on different load branches according to conditions, authorize an on/off operation on different load branches, and the like, thereby adapting to differentiated power backup and power generation management.
In one embodiment, the main control device 140 may send out an intelligent early warning for a load branch with abnormal power consumption fluctuation according to power consumption data changes of different load branches. In this embodiment, if the main control device 140 determines that there is no power fluctuation abnormality in a certain load shunt, the corresponding load shunt may be respectively turned on for authorization to power up according to the defined tenant attribute. Therefore, the dc power distribution consumption early warning control system 100 can perform management work on the leased sites, and sites not leased are not authorized to be powered on, thereby reducing customer disputes during construction.
In one embodiment, if the main control device 140 determines that a power consumption fluctuation abnormality occurs in a certain load branch, the main control device may send a control instruction to the switch device 130 to disconnect the load branch where the corresponding switch device 130 is located, so as to implement controllable and controllable management on situations such as private loading or private expansion of tenants, and avoid electric charge disputes. Of course, the main control device 140 can also realize the functions of energy saving, consumption reduction, rental management, electric charge management, and the like by controlling electricity.
The dc power distribution power consumption early warning control system 100 provided by the present application includes a dc power distribution device 110, a power consumption monitoring device 120, a switching device 130, and a main control device 140. The dc distribution device 110 provides dc power to a plurality of load branches. The power consumption monitoring device 120 is electrically connected to the dc power distribution device 110 and each load branch, and is configured to obtain power consumption data of each load branch, where the power consumption data may visually reflect whether a private load is connected or a private capacity is expanded in each load branch. The switching device 130 is electrically connected to the dc distribution device 110 and each of the load branches, and can independently control the on/off of each of the load branches. The main control device 140 is electrically connected with the power consumption monitoring device 120 and the switch device 130, respectively, the main control device 140 receives the power consumption data, and judges whether phenomena such as private load connection or private capacity expansion exist according to a preset power consumption data threshold value of each load shunt and the power consumption data corresponding to the power consumption data threshold value, so that a control signal is generated and sent to the corresponding switch device 130 to control the connection and disconnection of the corresponding load shunt, thereby avoiding electric charge disputes among operators, operators and iron tower companies, and realizing accurate electric charge management.
Referring to fig. 2, in one embodiment, the dc power distribution power consumption early warning control system 100 further includes a shunt overcurrent early warning device 170, where the shunt overcurrent early warning device 170 is electrically connected to each load shunt and the main control device 140, respectively, and is configured to detect an output current of each load shunt and send the output current to the main control device 140, and the main control device 140 generates a capacity early warning control signal according to the output current, a preset rated current, and a preset off current, so as to control the on/off of the corresponding switch device 130.
It is understood that in conventional switching power supply dc distribution, the user load is usually directly connected to the dummy switch or fuse, and the capacity of the dummy switch or fuse is fixed. At this time, if a user with a small load is connected to a large-capacity idle switch or a fuse, when the user equipment is in an overcurrent state, due to the fact that the idle switch or the fuse has an excessively large nominal capacity, the user overcurrent cannot enable the idle switch or the fuse to be disconnected, the fault equipment cannot be timely disconnected from the switch power supply, and even fire or other accident hazards can be caused even after long-term operation. In addition, for a large-capacity air switch or a fuse, due to the large capacity and no overcurrent control method, a plurality of devices may be connected in parallel, so that the situation of private load connection occurs, and after one device fails, the device cannot be timely disconnected, so that the influence on user equipment is caused, and meanwhile, fire or other accident hidden dangers may be caused. Therefore, by arranging the shunt overcurrent early warning device 170, the capacity of the actual load of the user and the preset shunt output capacity can be monitored, and after the preset capacity is exceeded, the main control device 140 can perform capacity overrun early warning and then control the corresponding switch device 130 to turn off, so that the problem that the capacity of the user equipment is not matched with the capacity of an idle switch or a fuse is solved, and meanwhile, the condition of private load can be limited and managed.
Referring to fig. 3, in one embodiment, since there may be a device for limiting shunt capacity output between each dc shunt output of a user in the dc distribution unit system and the dc bus, the shunt overcurrent early warning device 170 may first detect an output current of each shunt, send the obtained output current to a corresponding overcurrent determining unit in the main control device 140, and compare the output current with a rated capacity of the output shunt set by the user, that is, a preset rated current. If the output current corresponding to the shunt circuit is larger than the preset rated current of the output shunt circuit, the shunt circuit overcurrent alarm can be firstly carried out; if the output current corresponding to the shunt is greater than the preset turn-off current of the output shunt, the corresponding switching device 130 may be controlled by the main control device 140 to turn off the shunt output, so that the configurable output shunt capacity of the user may be realized.
Referring to fig. 4, in one embodiment, the dc power distribution power consumption early warning control system 100 further includes a standby power demand detection device 180, where the standby power demand detection device 180 is electrically connected to the switch device 130 corresponding to each load shunt and the main control device 140, respectively, and is configured to detect an ac voltage of the switch device 130 and send the ac voltage 130 to the main control device 140, the main control device 140 determines a power supply mode according to the ac voltage, and generates a power supply mode control signal according to the power supply mode and a preset power supply mode to control the on/off of the corresponding switch device 130, where the preset power supply mode is a mains power supply or an ac oil engine power supply.
Referring to fig. 5 together, it can be understood that the conventional switching power supply dc distribution cannot detect the power supply type of the ac input, i.e. cannot distinguish between the commercial power and the ac oil engine. Because the commercial power and the alternating current oil machine cannot be distinguished, the alternating current oil machine is equal to the commercial power to work when generating electricity, all users use the electric quantity of the alternating current oil machine at the same time, the electricity can not be generated in a differentiation mode, and the power required by the alternating current oil machine is very large. Therefore, the equipment power supply requirement detection equipment 180 can directly detect the switching equipment 130, namely, the alternating voltage of the switching power supply, without being externally connected with other equipment, so that the distinction between the mains supply and the alternating current oil engine supply is realized. Therefore, after the power failure of the mains supply, the power supply mode is preset through the user information acquired by or built in the main control equipment 140, so that a differentiated power supply scheme of the alternating current oil engine is provided for different users, namely, the power supply can be cut off for users who do not need to generate electricity by the alternating current oil engine, the power supply can be continuously provided for users who need to provide electricity by the alternating current oil engine, and the flexible configuration of the alternating current oil engine according to the user requirements is realized.
In one embodiment, the number of power consumption monitoring devices 120 and the number of switching devices 130 are both greater than the number of load shunts. In this embodiment, since the number of the power consumption monitoring devices 120 and the number of the switching devices 130 are both greater than the number of the load branches, that is, the number of the power consumption monitoring devices 120 and the number of the switching devices 130 are sufficient, when the dc power distribution power consumption early warning control system 100 needs to add load branches, a load branch interface can be directly added, a complex wiring process is omitted, and the working efficiency is improved.
Referring also to fig. 6, in one embodiment, the dc power distribution consumption warning control system 100 further includes a load shunt extension device 150. The load shunt extension device 150 is electrically connected to the dc distribution device 110 through the switch device 130 and is electrically connected to the power consumption monitoring device 120, wherein the switch device 130 and the power consumption monitoring device 120 are in one-to-one correspondence with load shunts in the load shunt extension device 150. In this embodiment, the dc power distribution device 110, the power consumption monitoring device 120, the switching device 130, and the load shunt extension device 150 are sequentially connected.
In one embodiment, the load shunt spread devices 150 may be cascaded in multiple stages depending on the number of power consumption monitoring devices 120 and switching devices 130. In another embodiment, the power consumption monitoring device 120 and the switching device 130 may be additionally added to the load shunt extension device 150, and at this time, the load shunt extension device 150 may be overlapped in the dc power distribution power consumption early warning control system 100 in an unlimited number, so as to meet the requirement of multiple paths of load differential power supplies. In this embodiment, the power consumption monitoring device 120 in the load shunt extension device 150 needs to be electrically connected to the dc distribution device 110. It can be understood that the accessed load shunt expansion device 150 can perform unified management and control through the main control device 140, so as to meet the continuously expanded power supply service requirements of the iron tower sharing site operator and other tenants, reduce the transformation cost, and increase the revenue.
Referring to fig. 7-8 together, in one embodiment, the dc power distribution apparatus 110 includes an ac power distribution unit 111 and a rectification unit 112. The ac power distribution unit 111 is used to output ac power. The rectifying unit 112 is electrically connected to the ac power distribution unit 111, and is configured to convert ac power provided by the ac power distribution unit 111 into dc power. It can be understood that the ac power distribution unit 111 outputs ac power to the rectification unit 112, and the rectification unit 112 converts the ac power provided by the ac power distribution unit 111 into dc power, and provides the dc power to different load branches after filtering, so as to achieve power distribution output. In this embodiment, the dc output from the rectifying unit 112 sequentially passes through the power consumption monitoring device 120 and the switching device 130, and finally is input to the load shunt circuit.
Referring to fig. 9, in one embodiment, the dc power distribution device further includes a battery backup unit 113, the battery backup unit 113 is electrically connected to the rectifying unit 112 and the main control device 140, the battery backup unit 113 is used for charging through the rectifying unit 112 when the utility power is supplied, and providing a backup power service after the utility power is cut off, and the main control device 140 generates a backup power control signal according to the utility power state and a preset power supply requirement, so as to control the charging of the corresponding battery backup unit 113 or supply power to the corresponding load in a shunt manner.
Referring to fig. 10, it can be understood that in the dc power distribution system, the storage battery is an important backup power source for the communication equipment, and can provide power for the dc equipment of the user after the commercial power is cut off. The storage battery can be used for all users to be supplied with power in the traditional switch power supply direct current distribution, namely after the commercial power is cut off, all users use the same set of storage battery to be supplied with power, the power can not be differentiated, and more storage battery packs can only be added if the capacity of the storage battery packs is insufficient. Therefore, a differentiated battery power supply scheme can be provided for the user after the commercial power failure by arranging the battery power supply unit 113. On the basis of using the original storage battery for power supply, when the capacity of the original storage battery is insufficient, independent storage battery power supply can be independently added for a certain user according to the user demand, and the newly added storage battery only supplies power for the user and does not supply power for other users in the system. Meanwhile, after the mains supply is recovered, the newly added storage battery can be charged with the original storage battery through the original switching power supply system, namely the direct-current distribution equipment 110, the switching equipment 130 and the main control equipment 140 in the direct-current distribution power consumption early warning control system 100, and the capacity of the storage battery is recovered to be used in the next power failure.
In one embodiment, the power consumption monitoring device 120 includes a voltage sampling unit 121, a current sampling unit 122, and a power consumption monitoring unit 123. The voltage sampling unit 121 is electrically connected to the corresponding load shunt circuit, and is configured to obtain voltage data of the load shunt circuit. The current sampling unit 122 is electrically connected to the corresponding load branch, and is configured to obtain current data of the load branch. The power consumption monitoring unit 123 is electrically connected to the voltage sampling unit 121 and the current sampling unit 122, respectively, and is configured to receive the voltage data and the current data and generate power consumption data according to the voltage data and the current data. It can be understood that the voltage sampling unit 121, the current sampling unit 122, and the power consumption monitoring unit 123 may obtain power consumption data in the load shunt circuit in real time, so that the operating power consumption fluctuation of the network device may be grasped in time, and a basis is provided for the main control device 140 or the iron tower operation and maintenance monitoring platform to generate a control instruction.
In one embodiment, switching device 130 includes a shunt electronic switch 131 and a shunt control unit 132. The shunt electronic switch 131 is connected in series between the dc distribution device 110 and each load shunt, and is used to control the on/off of the corresponding load shunt. In this embodiment, the shunt electronic switch 131 is connected in series between the power consumption monitoring device 120 and each load shunt. The shunt control unit 132 is electrically connected to the main control device 140 and the shunt electronic switch 131, and is configured to receive a control signal sent by the main control device 140 and control the on/off of the shunt electronic switch 131 according to the control signal.
In one embodiment, the shunt electronic switch 131 may be disposed between the dc bus bar and each dc load shunt, that is, each output of the dc power distribution apparatus 110 is controlled by a separate electronic switch device. The electronic switch has the advantages of reliable turn-off, no arcing when the current is turned off, extremely low driving power consumption, accurate and settable current protection threshold, editable protection logic according to requirements, more sensitive and reliable short-circuit protection reflection and the like, so the shunt electronic switch 131 can realize accurate control on the on-off of each load shunt, and accurate measurement of electric quantity is realized. In this embodiment, the shunt electronic switch 131 may be a MOS transistor or a contactor.
In one embodiment, the switching device 130 further comprises an alert device 133. Alarm device 133 is electrically coupled to shunt control unit 132 for displaying the operating status of shunt electronic switch 131 unit and issuing an alarm. In another embodiment, the alarm device 133 may also be directly electrically connected to the main control device 140 for receiving the abnormal power consumption alarm signal sent by the main control device 140 to remind the staff at the site or the terminal device. In one embodiment, the warning device 133 may be a warning indicator light, which is convenient for operation or maintenance personnel of the iron tower.
In one embodiment, the main control device 140 includes a dc power distribution control unit 141 and a switching power supply control unit 142. The dc distribution control unit 141 is electrically connected to the power consumption monitoring device 120 and the switching device 130, respectively. The switching power supply control unit 142 is electrically connected to the dc power distribution control unit 141, and is configured to receive the power consumption data through the dc power distribution control unit 141, generate an intermediate control signal according to the power consumption data, and generate a control signal according to the intermediate control signal by the dc power distribution control unit 141.
In one embodiment, if the iron tower device to which the dc power distribution power consumption early warning control system 100 is to be installed already has the dc power distribution control unit 141, the dc power distribution control unit 141 may be omitted from the dc power distribution power consumption early warning control system 100 provided by the present application, and only the switching power supply control unit 142 is used to implement wiring with the existing dc power distribution control unit 141.
In one embodiment, the dc power distribution control unit 141 may include a dc power distribution unit controller, and the dc power distribution unit controller may perform on/off control of the switching device 130 according to control logic. Meanwhile, the dc distribution control unit 141 can perform fast and accurate protection according to parameters such as each path of dc output current and dc output voltage of the dc distribution device 110, so as to ensure stable and reliable operation of the dc distribution power consumption early warning control system 100.
In one embodiment, the switching power supply control unit 142 may include a switching power supply controller. The switching power supply controller can communicate with the direct-current power distribution unit controller through a control bus, so that information reported by the direct-current power distribution unit controller is converted into 485 communication codes, is connected with the intelligent moving-ring monitoring equipment 160 and is reported to the iron tower operation and maintenance monitoring platform. Meanwhile, the switching power supply control unit 142 may receive a remote control command of the iron tower operation and maintenance monitoring platform through the intelligent dynamic loop monitoring device 160, so as to control and manage the dc power distribution unit controller, and implement authorized control of power-on.
In one embodiment, the dc power distribution power consumption warning control system 100 further includes an intelligent dynamic loop monitoring device 160. The intelligent moving-loop monitoring device 160 is electrically connected to the switching power supply control unit 142, and is configured to receive power consumption data and send the power consumption data to the terminal, and receive a remote control signal from the terminal and send the remote control signal to the switching power supply control unit 142, so that the switching power supply control unit 142 generates an intermediate control signal. In one embodiment, the intelligent moving ring monitoring device 160 is electrically connected to the main control device 140 via an RS485 interface.
In one embodiment, the intelligent dynamic loop monitoring device (FSU) 160 is composed of a plurality of monitoring modules and other auxiliary devices, and is a monitoring subsystem that can directly perform data acquisition and processing for devices, sensors, and the like in the dc power distribution power consumption early warning control system 100. The intelligent dynamic loop monitoring device 160 includes functions of sampling, data processing, data relaying, and the like, and can communicate with a terminal, i.e., an iron tower operation and maintenance monitoring platform, and transmit the acquired power consumption data to the iron tower operation and maintenance monitoring platform. Meanwhile, the intelligent dynamic loop monitoring device 160 may also receive a control signal from the iron tower operation and maintenance monitoring platform, and send the control signal to a corresponding device in the dc power distribution power consumption early warning control system 100, so as to implement remote power-on or power-off.
In one embodiment, by using the communication between the intelligent moving-ring monitoring device 160 and the iron tower operation and maintenance monitoring platform, the switching of the shunt electronic switch 131 in the switch device 130 can be controlled through the mobile phone APP, so that the configuration of each load shunt and the configuration of the power-on strategy can be simply and efficiently completed, the working efficiency is improved, and the labor cost of operation and maintenance personnel is effectively reduced. It can be understood that when the switching power supply control unit 142 determines that the power consumption is abnormal, the dc power distribution power consumption early warning control system 100 can intelligently send out early warning to the abnormal fluctuation condition of the power consumption, that is, send an early warning signal to the iron tower operation and maintenance monitoring platform.
In one embodiment, the iron tower operation and maintenance staff can check the early warning signal, namely, judge and determine whether the operation is a private load or a private capacity expansion behavior through manual study, and perform shunt turn-off control through a remote manual control mode to prevent the phenomenon. In the later service process, data model extraction can be performed by acquiring and storing the real-time current, the real-time voltage and the real-time load power of each load shunt, that is, the main control device 140 can perform self intelligent judgment and make corresponding alarm and operation. In another embodiment, the iron tower operation and maintenance monitoring platform can intelligently judge whether remote power-off operation and other operations need to be executed according to a preset data model, a pre-loaded data model and a received early warning signal. Therefore, the intelligent dynamic ring monitoring device 160 can be configured to remotely power up and down to further manage renting, private load receiving or private capacity expansion behaviors, thereby avoiding power charge dispute and reducing economic loss caused by power up without renting.
In one embodiment, the dc power distribution power consumption warning control system 100 further includes a ground terminal, and the ground terminal can ensure that devices in the dc power distribution power consumption warning control system 100 are reliably grounded, so as to avoid electric shock hazard.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a direct current distribution power consumption early warning control system which characterized in that includes:
the direct current distribution equipment is used for providing direct current for a plurality of load branches;
the power consumption monitoring equipment is electrically connected with the direct current distribution equipment and each load shunt circuit respectively and is used for acquiring power consumption data of each load shunt circuit;
the switch equipment is electrically connected with the direct current distribution equipment and each load shunt circuit respectively and is used for independently controlling the on-off of each load shunt circuit; and
and the main control equipment is electrically connected with the power consumption monitoring equipment and the switch equipment respectively and is used for receiving the power consumption data, generating a control signal according to a preset power consumption data threshold value of each load shunt and the power consumption data corresponding to the power consumption data threshold value, sending the control signal to the corresponding switch equipment to control the on-off of the corresponding load shunt, and sending a power consumption abnormity warning signal to a preset terminal.
2. The direct-current power distribution power consumption early warning control system according to claim 1, further comprising a shunt over-current early warning device, wherein the shunt over-current early warning device is electrically connected to each load shunt and the main control device, and is configured to detect an output current of each load shunt and send the output current to the main control device, and the main control device generates a capacity early warning control signal according to the output current, a preset rated current and a preset off-current, so as to control the on/off of the corresponding switching device.
3. The direct-current distribution power consumption early warning control system according to claim 1 or 2, further comprising a standby power demand detection device, wherein the standby power demand detection device is electrically connected with the switching device corresponding to each load shunt circuit and the main control device respectively, and is configured to detect an alternating-current voltage of the switching device and send the alternating-current voltage to the main control device, the main control device determines a power supply mode according to the alternating-current voltage, and generates a power supply mode control signal according to the power supply mode and a preset power supply mode to control the switching of the corresponding switching device, and the preset power supply mode is a mains power supply or an alternating-current oil engine power supply.
4. The direct current power distribution power consumption early warning control system according to claim 1, wherein the number of the power consumption monitoring devices and the number of the switching devices are both greater than the number of the load branches.
5. The dc power distribution power consumption early warning control system according to claim 4, further comprising:
and the load shunt expansion equipment is electrically connected with the direct current distribution equipment through the switch equipment and is electrically connected with the power consumption monitoring equipment, wherein the switch equipment and the power consumption monitoring equipment are in one-to-one correspondence with load shunts in the load shunt expansion equipment.
6. The dc power distribution power consumption early warning control system according to claim 1, wherein the dc power distribution device comprises:
the alternating current distribution unit is used for outputting alternating current; and
and the rectifying unit is electrically connected with the alternating current distribution unit and is used for converting alternating current provided by the alternating current distribution unit into direct current.
7. The direct-current power distribution power consumption early warning control system according to claim 6, wherein the direct-current power distribution equipment further comprises a storage battery backup unit, the storage battery backup unit is electrically connected with the rectifying unit and the main control equipment, the storage battery backup unit is used for charging through the rectifying unit when the mains supply is supplied and providing a backup power service after the mains supply is powered off, and the main control equipment generates a backup power control signal according to the mains supply state and a preset power supply demand so as to control the charging of the corresponding storage battery backup unit or the shunt power supply for the corresponding load.
8. The dc power distribution power consumption early warning control system according to claim 1, wherein the switching device comprises:
the branch electronic switch is connected between the direct current distribution equipment and each load branch in series and used for controlling the on-off of the corresponding load branch; and
and the shunt control unit is electrically connected with the main control equipment and the shunt electronic switch respectively and is used for receiving the control signal sent by the main control equipment and controlling the shunt electronic switch to be switched on and off according to the control signal.
9. The dc power distribution power consumption early warning control system according to claim 1, wherein the master device comprises:
the direct current distribution control unit is electrically connected with the power consumption monitoring equipment and the switch equipment respectively; and
and the switching power supply control unit is electrically connected with the direct current power distribution control unit and used for receiving the power consumption data through the direct current power distribution control unit and generating an intermediate control signal according to the power consumption data, and the direct current power distribution control unit generates the control signal according to the intermediate control signal.
10. The dc power distribution power consumption early warning control system according to claim 9, further comprising:
the intelligent moving loop monitoring equipment is electrically connected with the switching power supply control unit and is used for receiving the power consumption data, sending the power consumption data to a terminal, receiving a remote control signal of the terminal and sending the remote control signal to the switching power supply control unit so that the switching power supply control unit generates the intermediate control signal; the intelligent moving ring monitoring equipment is electrically connected with the main control equipment through an RS485 interface.
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