CN216290325U - Power supply control system - Google Patents

Power supply control system Download PDF

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Publication number
CN216290325U
CN216290325U CN202122616132.5U CN202122616132U CN216290325U CN 216290325 U CN216290325 U CN 216290325U CN 202122616132 U CN202122616132 U CN 202122616132U CN 216290325 U CN216290325 U CN 216290325U
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control module
module
central control
input
power
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刘佳琪
周超
何镧
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Hangzhou Chaoju Technology Co ltd
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Hangzhou Chaoju Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

Abstract

The present invention relates to a power supply control system, comprising: a central control module; the man-machine interaction module is in signal connection with the central control module and is used for inputting control commands; the input control module is in signal connection with the central control module and is used for controlling the input of the first target power type according to the control command; wherein the first target power type is alternating current or direct current; the redundant power supply module is in signal connection with the central control module and is used for controlling the input of the standby power supply according to the control command; the output control module is in signal connection with the central control module and is used for controlling the output of the second target power type according to the control command; wherein the second target power type is alternating current or direct current. The utility model realizes AC/DC input control, can control AC or DC input to be preferred according to actual requirements, and avoids the energy waste condition of simultaneous AC and DC power supply.

Description

Power supply control system
Technical Field
The utility model belongs to the technical field of power management, and particularly relates to a power control system.
Background
With the development of electronic equipment and internet of things technology, field unattended observation stations gradually become an observation means in the fields of weather monitoring, earthquake monitoring, safety monitoring and the like. The operational stability and reliability of the monitoring equipment in the observation station are of great importance to the observation quality. The observation station is examined by the environment and influenced by construction conditions, a professional transformer cannot be reserved in the power supply of a general field online monitoring station, and the power distribution network can directly acquire an input power supply to meet the power supply requirement of a system or meet the power supply requirement of the system through solar energy and wind energy. Therefore, in order to ensure continuous and stable operation of the monitoring equipment in the field observation system, a stable and reliable power supply needs to be provided.
At present, a power supply monitoring system is generally adopted for controlling a power supply, and the general power supply monitoring system comprises power switch parameter and state detection, storage battery state and charge-discharge control and generator set operation state detection, for example, an intelligent storage battery manager special for a disaster geological monitoring instrument disclosed in patent document with publication number CN 102306944B.
With the development of network technology, the power supply monitoring system has a network transmission function and can realize long-distance and large-range distribution. Some miniaturized power monitoring systems can also be simultaneously suitable for four types of power supplies, namely AC-DC, DC-AC and AC-AC, and the requirement of intelligent management of power monitoring is basically met. However, the problem of redundant power supply energy waste still exists in power supply monitoring, especially in the power supply of monitoring systems in remote areas. The conventional power supply monitoring system can only ensure continuous power supply, but does not consider the service life of a redundant power supply module and the problem of preferential use of green energy, so that power supply waste or high operation cost in a field observation system is caused.
SUMMERY OF THE UTILITY MODEL
Based on the above disadvantages and shortcomings in the prior art, an objective of the present invention is to at least solve one or more of the above problems in the prior art, in other words, an objective of the present invention is to provide a power control system that satisfies one or more of the above requirements, has a power supply mode preference function based on rationalization, intellectualization and low energy consumption, is simple to operate, can effectively utilize power sources, prolongs the service life of each power supply device, and can effectively monitor output parameters, thereby solving the problems of high power supply cost and high energy consumption in a field unattended observation system.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
a power control system comprising:
a central control module;
the man-machine interaction module is in signal connection with the central control module and is used for inputting control commands;
the input control module is in signal connection with the central control module and is used for controlling the input of the first target power type according to the control command; wherein the first target power type is alternating current or direct current;
the redundant power supply module is in signal connection with the central control module and is used for controlling the input of the standby power supply according to the control command;
the output control module is in signal connection with the central control module and is used for controlling the output of the second target power type according to the control command; wherein the second target power type is alternating current or direct current.
As a preferred scheme, the input control module comprises an alternating current input end, a direct current input end, a first voltage detection module and a control switch, wherein the alternating current input end is used for being connected with a mains supply, the direct current input end is used for being connected with a solar photovoltaic panel or a wind driven generator, the alternating current input end and the direct current input end are respectively connected with the first voltage detection module, and the first voltage detection module is used for detecting voltage information of the alternating current input end and the direct current input end and transmitting the voltage information to the central control module; the output ends of the alternating current input end and the direct current input end are connected to the central control module through the control switch;
and the central control module controls the switching between the input of the alternating current and the input of the direct current through the control switch according to the voltage information.
Preferably, the redundant power supply module comprises an input switch, an output switch, a storage battery and a second voltage detection module, the central control module is connected with the storage battery through the input switch and the output switch respectively, the storage battery is connected with the second voltage detection module, and the second voltage detection module is used for detecting the voltage of the storage battery and transmitting the voltage to the central control module.
Preferably, the output control module includes a power converter, a dc output terminal, an ac output terminal, and a current and voltage detection module, the central control module is connected to the power converter, the power converter is connected to the dc output terminal and the ac output terminal, the dc output terminal and the ac output terminal are connected to the current and voltage detection module, and the current and voltage detection module is configured to detect current and voltage output by the second target power type and transmit the current and voltage to the central control module.
Preferably, the power converter comprises an AC-AC converter, an AC-DC rectifier, a DC-DC converter and a DC-AC inverter, the AC-AC converter is respectively connected with the central control module and the AC output terminal, the AC-DC rectifier is respectively connected with the central control module and the DC output terminal, the DC-DC converter is respectively connected with the central control module and the DC output terminal, and the DC-AC inverter is respectively connected with the central control module and the AC output terminal.
Preferably, the number of the direct current output ends and/or the alternating current output ends is multiple.
Preferably, the human-computer interaction module is a touch screen, and is configured to input the first target power type, the second target power type, the voltage range, and the timing operation time of the standby power to form a control command, and further configured to display voltage and current information received by the central control module.
Preferably, the power control system further comprises a network communication module in signal connection with the central control module and used for transmitting the voltage and current information received by the central control module to the remote data terminal.
Preferably, the network communication module comprises a wireless communication module and a lithium battery, the wireless communication module is used for the communication connection between the central control module and the remote data terminal, and the lithium battery is used for supplying power to the wireless communication module and the central control module.
Compared with the prior art, the utility model has the beneficial effects that:
(1) alternating current and direct current input control can control alternating current or direct current input priority according to actual requirements, and automatic switching of alternating current and direct current input can be realized through voltage detection, so that not only is the continuity of power supply ensured, but also green energy is effectively utilized, and the energy waste condition of simultaneous alternating current and direct current power supply is avoided;
(2) the redundant standby power module can be charged and discharged automatically on line, manual maintenance is not needed, the service life of the storage battery is prolonged, and meanwhile, the energy-saving effect is achieved;
(3) the power input and output conditions of the power control system are transmitted through the wireless network, so that an operator can conveniently judge whether the power supply of the field online monitoring system is normal, alarm information can be provided when the power control system fails or no alternating current or direct current is input, the operator can conveniently judge the failure reason, and the operation and maintenance efficiency is improved.
Drawings
FIG. 1 is a block diagram of a power control system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of the power supply control system according to the embodiment of the utility model.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
As shown in fig. 1, the power control system of the embodiment of the present invention includes a central control module 1, an input control module, an output control module, a redundant power supply module, a human-computer interaction module 5 and a network communication module, specifically, the human-computer interaction module is in signal connection with the central control module and is used for inputting a control command; the input control module is in signal connection with the central control module and is used for controlling the input of the first target power type according to the control command; wherein the first target power type is alternating current or direct current; the redundant power supply module is in signal connection with the central control module and is used for controlling the input of the standby power supply according to the control command; the output control module is in signal connection with the central control module and is used for controlling the output of the second target power type according to the control command; wherein the second target power type is alternating current or direct current.
The input control module comprises an alternating current input end 2-1, a direct current input end 2-2, a voltage detection module 2-3 and a control switch 2-4, wherein the alternating current input end 2-1 is used for being connected with 110-240V mains supply, the direct current input end 2-2 is used for being connected with a solar photovoltaic panel or a wind driven generator, the alternating current input end 2-1 and the direct current input end 2-2 are respectively connected with the voltage detection module 2-3, and the voltage detection module 2-3 is used for detecting voltage information of the alternating current input end and the direct current input end and transmitting the voltage information to the central control module 1; the output ends of the alternating current input end and the direct current input end are connected to the central control module 1 through control switches 2-4, so that the input of alternating current or direct current or no electricity is controlled through the control switches 2-4; in addition, the central control module 1 controls the switching between the input of alternating current and the input of direct current through a control switch according to the voltage information; specifically, an operator selects a priority power supply mode, if the alternating current power supply is priority, the alternating current input end is started, and when the voltage detection module 2-3 detects that the voltage is zero, the central control module controls to start the direct current input end; if the direct current power supply is prior, the direct current input end is started, and when the voltage detected by the voltage detection module 2-3 is lower than 10V, the central control module controls the starting of the alternating current input end; finally, switching between the input of alternating current and the input of direct current is achieved, the continuity of power supply is guaranteed, green energy is effectively utilized, and the energy waste condition that alternating current and direct current supply power simultaneously is avoided.
The output control module comprises a power converter 3-1, a direct current output end 3-2, an alternating current output end 3-3 and a current and voltage detection module 3-4, the central control module 1 is connected with the power converter 3-1, the power converter 3-1 is respectively connected with the direct current output end 3-2 and the alternating current output end 3-3, the direct current output end 3-2 and the alternating current output end 3-3 are respectively connected with the current and voltage detection module 3-4, and the current and voltage detection module 3-4 is used for detecting current and voltage output by a second target power type and transmitting the current and voltage to the central control module 1. The power converter comprises an AC-AC converter, an AC-DC rectifier, a DC-DC converter and a DC-AC inverter, wherein the AC-AC converter is respectively connected with the central control module and the alternating current output end; specifically, the central control module 1 controls the operation and output voltage range of the power converter according to the input mode of the input control module and the load device connected to the output control module.
When alternating current is input: if the load equipment is alternating current equipment, an AC-AC converter of the power converter works; if the load equipment is direct current equipment, the AC-DC rectifier works.
When direct current is input: if the load equipment is alternating current equipment, a DC-AC inverter of the power converter works; if the load equipment is direct current equipment, the DC-DC converter works.
In addition, the power converter adjusts the output voltage range according to the control command of the central control module 1.
The number of the direct current output ends and/or the alternating current output ends of the embodiment of the utility model is multiple, and each pair of multiple load devices are used for supplying power in a distinguishing manner.
The redundant power supply module comprises an input switch 4-1, an output switch 4-2, a storage battery 4-3 and a voltage detection module 4-4, wherein the central control module 1 is respectively connected with the storage battery 4-3 through the input switch 4-1 and the output switch 4-2, the storage battery 4-3 is connected with the voltage detection module 4-4, and the voltage detection module 4-4 is used for detecting the voltage of the storage battery 4-3 and transmitting the voltage to the central control module;
when the voltage detection module 4-4 detects that the voltage of the storage battery is lower than a first voltage threshold value, the input switch 4-1 is turned on, and the central control module 1 controls the storage battery 4-3 to be charged;
when the voltage detection module 4-4 detects that the voltage of the storage battery is higher than the second voltage threshold, the input switch 4-1 is closed, the storage battery 4-3 is stopped to be charged, overcharging is prevented, and the service life of the storage battery is prolonged;
when the voltages of the alternating current input end and the direct current input end detected by the voltage detection module 2-3 are both zero, the central control module 1 controls the output switch 4-2 to be opened so as to use the storage battery 4-3 as a standby power supply for inputting, and the standby power supply is realized.
The man-machine interaction module 5 of the embodiment of the utility model is used for outputting a control command to the power control system by an operator. Specifically, the human-computer interaction module 5 is a touch screen, and is configured to input the first target power type, the second target power type, the voltage range, and the timing operation time of the standby power to form a control command, and further configured to display voltage and current information received by the central control module, so as to facilitate on-site viewing.
The network communication module is in signal connection with the central control module and is used for transmitting the voltage and current information received by the central control module to the remote data terminal. Specifically, the network communication module comprises a wireless communication module (exemplified by the 4G module 6-1, and may also be a 5G module, etc.) and a lithium battery 6-2, wherein the 4G module 6-1 is used for the communication connection of the central control module and the remote data terminal, and the lithium battery 6-2 is used for supplying power to the wireless communication module and the central control module. When no input exists in alternating current and direct current or the power control system has a fault, the lithium battery 6-2 supplies power for a short time, so that the fault information of the central control module is transmitted to the remote data terminal through the 4G module, and remote alarm is performed.
The central control module of the embodiment of the utility model takes a microprocessor as a core to control the operation of each functional module, the central control module receives the command of the human-computer interaction module, controls alternating current and direct current input through a voltage detection module in the input control module according to power supply preference, controls the output voltage range of a power converter of the output control module according to the type of load equipment, receives the detection of a current and voltage detection module, controls an input switch and an output switch of a redundant power supply module to charge and discharge a storage battery, and displays the operation condition of the power supply control system to an operator or a remote data end through the human-computer interaction module and a network communication module.
In addition, as shown in fig. 2, the control method of the power supply control system according to the embodiment of the present invention includes:
according to the input first target power type, the central control module controls the input of alternating current or direct current; if the input is alternating current, when the voltage detected by the first voltage detection module is zero, the central control module controls the input switched to direct current; if the voltage is the input of direct current, when the voltage detected by the first voltage detection module is lower than 10V, the central control module controls to switch to the input of alternating current; specifically, an operator selects a preferential power supply mode, the central control module is controlled to be connected with alternating current or direct current, the voltage detection module detects voltage, and when the voltage detection power supply is abnormal, the central control module is controlled to be connected with another power supply. If the alternating current power supply is prior, the alternating current input end is started, and when the voltage detection module detects that the voltage is 0, the central control module controls the starting of the direct current input end; if the direct current power supply is prior, the direct current input end is opened, and when the voltage detection module detects that the voltage is lower than 10V, the central control module controls to open the alternating current input end to realize switching.
Selecting a second target power type and a voltage range according to the load type, controlling the power converter to output the second target power type to each direct current output end or alternating current output end by the central control module, and monitoring the current and the voltage output by the second target power type through the current and voltage detection module;
setting the timing working time of the standby power supply, and when the set working time is reached, closing the input of the first target power supply type by the central control module, and opening an output switch of the redundant standby power supply module to input the standby power supply;
when the voltage of the storage battery is lower than 10V, the output switch is closed, the central control module controls the input of the first target power type, and the input switch of the redundant power supply module is opened to charge the storage battery;
when the voltage of the storage battery is higher than 12V, the input switch of the redundant power supply module is closed;
when the voltages of the alternating current input end and the direct current input end detected by the first voltage detection module are both zero, the central control module controls the output switch to be switched on so as to use the storage battery as a standby power supply and input the standby power supply;
the voltage and current information (namely, acquisition information) received by the central control module is transmitted to a remote data terminal (namely, a client) through a communication module of the network communication module;
when the power control system has a fault, for example, the input control module and the redundant power supply module cannot provide power, or other faults cause the power control system to be incapable of normally running, the lithium battery of the network communication module supplies power to the central control module and the wireless communication module temporarily, so that fault information is wirelessly transmitted to the remote data terminal to realize alarm.
The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.

Claims (9)

1. A power control system, comprising:
a central control module;
the man-machine interaction module is in signal connection with the central control module and is used for inputting control commands;
the input control module is in signal connection with the central control module and is used for controlling the input of the first target power type according to the control command; wherein the first target power type is alternating current or direct current;
the redundant power supply module is in signal connection with the central control module and is used for controlling the input of the standby power supply according to the control command;
the output control module is in signal connection with the central control module and is used for controlling the output of the second target power type according to the control command; wherein the second target power type is alternating current or direct current.
2. The power control system according to claim 1, wherein the input control module comprises an ac input end, a dc input end, a first voltage detection module and a control switch, the ac input end is used for connecting with a mains supply, the dc input end is used for connecting with a solar photovoltaic panel or a wind driven generator, the ac input end and the dc input end are respectively connected with the first voltage detection module, and the first voltage detection module is used for detecting voltage information of the ac input end and the dc input end and transmitting the voltage information to the central control module; the output ends of the alternating current input end and the direct current input end are connected to the central control module through the control switch;
and the central control module controls the switching between the input of the alternating current and the input of the direct current through the control switch according to the voltage information.
3. The power control system according to claim 2, wherein the redundant power backup module comprises an input switch, an output switch, a storage battery and a second voltage detection module, the central control module is connected with the storage battery through the input switch and the output switch respectively, the storage battery is connected with the second voltage detection module, and the second voltage detection module is used for detecting the voltage of the storage battery and transmitting the voltage to the central control module.
4. The power control system of claim 3, wherein the output control module comprises a power converter, a dc output terminal, an ac output terminal and a current and voltage detection module, the central control module is connected to the power converter, the power converter is connected to the dc output terminal and the ac output terminal, the dc output terminal and the ac output terminal are connected to the current and voltage detection module, and the current and voltage detection module is configured to detect and transmit the current and voltage outputted by the second target power type to the central control module.
5. The power control system of claim 4, wherein the power converter comprises an AC-AC converter, an AC-DC rectifier, a DC-DC converter and a DC-AC inverter, the AC-AC converter is connected with the central control module and the AC output end respectively, the AC-DC rectifier is connected with the central control module and the DC output end respectively, the DC-DC converter is connected with the central control module and the DC output end respectively, and the DC-AC inverter is connected with the central control module and the AC output end respectively.
6. The power control system of claim 5, wherein the number of said DC output terminals and/or AC output terminals is plural.
7. The power control system of claim 5, wherein the human-computer interaction module is a touch screen, and is configured to input the first target power type, the second target power type, the voltage range, and the timing operation time of the backup power to form the control command, and further configured to display the voltage and current information received by the central control module.
8. The power control system of claim 7, further comprising a network communication module in signal connection with the central control module for transmitting the voltage and current information received by the central control module to a remote data terminal.
9. The power control system of claim 8, wherein the network communication module comprises a wireless communication module and a lithium battery, the wireless communication module is used for the central control module to be in communication connection with the remote data terminal, and the lithium battery is used for supplying power to the wireless communication module and the central control module.
CN202122616132.5U 2021-10-28 2021-10-28 Power supply control system Active CN216290325U (en)

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Application Number Priority Date Filing Date Title
CN202122616132.5U CN216290325U (en) 2021-10-28 2021-10-28 Power supply control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122616132.5U CN216290325U (en) 2021-10-28 2021-10-28 Power supply control system

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CN216290325U true CN216290325U (en) 2022-04-12

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