CN215419721U - Power supply system of unit LCU cabinet - Google Patents

Power supply system of unit LCU cabinet Download PDF

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Publication number
CN215419721U
CN215419721U CN202121507554.2U CN202121507554U CN215419721U CN 215419721 U CN215419721 U CN 215419721U CN 202121507554 U CN202121507554 U CN 202121507554U CN 215419721 U CN215419721 U CN 215419721U
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China
Prior art keywords
power supply
power
switch
management circuit
supply system
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Active
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CN202121507554.2U
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Chinese (zh)
Inventor
张二猛
杜永生
周金冰
鲁宁宁
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Tianjin Huanyu Technology Co ltd
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Tianjin Huanyu 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

A power supply system of a unit LCU cabinet comprises a switch group and a power management circuit connected with the switch group, wherein the power management circuit is connected with an equipment group, a controller is connected with the power management circuit and controls the power management circuit to supply power to the equipment group; the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.

Description

Power supply system of unit LCU cabinet
Technical Field
The utility model relates to the technical field of LCU power supply, in particular to a power supply system of a unit LCU cabinet.
Background
Computer monitoring Local Control Unit (Local Control Unit) is widely used in hydropower station and pump station, LCU is generally arranged near power station production equipment, real-time monitoring and Control are carried out on the operation condition of the controlled object in situ, the LCU is a lower layer Control part of a power station computer monitoring system, original data are collected and preprocessed, various Control and regulation commands are sent out and completed through the LCU, and the LCU is a Control device which is important in the whole monitoring system and has high requirement on reliability; when the unit LCU cabinet supplies power to a plurality of devices, the power supply can interrupt the device work and even damage the devices, so that the power supply safety of the power supply system of the unit LCU cabinet is ensured and the stability of the power supply is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a power supply system of a unit LCU cabinet.
The technical problem to be solved by the utility model is realized by adopting the following technical scheme:
a power supply system of a unit LCU cabinet comprises a switch group and a power management circuit connected with the switch group, wherein the power management circuit is connected with an equipment group, a controller is connected with the power management circuit and controls the power management circuit to supply power to the equipment group;
the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.
Preferably, the switch group further includes a tap changer 1JLQA and a tap changer 3JLQA, and the power supply management circuit includes a main power supply management circuit connected to the tap changer 1JLQA and an auxiliary power supply management circuit connected to the tap changer 3 JLQA; the main power management circuit and the auxiliary power management circuit have the same structure.
Preferably, the main power management circuit includes a power controller 1PWR and a first rectifier circuit connected to the power controller 1PWR, and the power controller 1PWR controls a power signal.
Preferably, the system further comprises an environment monitoring circuit, and the output end of the main switch JLQA is connected with the environment monitoring circuit; the environment monitoring circuit is used for gathering environmental data including congealing fog sensor BH1 and temperature sensor BH2, temperature sensor BH2 is connected soft starter JRQ and is convenient for start temperature sensor BH 2.
Preferably, the lighting system further comprises an indicating circuit connected to an output terminal of the main switch JLQA, wherein the indicating circuit comprises a gate control switch SL and a lighting lamp EL connected to the gate control switch SL, and the lighting lamp EL is controlled by the gate control switch SL.
Preferably, the controller is connected with the power management circuit, and the controller includes a power module, a control module and a data exchange module.
Preferably, the equipment group comprises an electric leakage fire monitoring detector JH; and the power supply management circuit supplies power to the leakage fire monitoring detector JH through a switch JHQA.
Preferably, the equipment set comprises a touch display screen HMI; the power management circuit is connected with the touch display screen HMI for supplying power through a switch HMIQA.
Preferably, the alarm device further comprises an alarm circuit, wherein the alarm circuit comprises an alarm bell HAB and a diode VDR connected with the alarm bell HAB; the power supply management circuit is connected with the alarm bell HAB through a switch HABQA, and the power supply system gives an alarm through the alarm bell HAB when abnormal.
Preferably, the equipment group comprises a network tester CH; the power management circuit is connected with the network tester CH through a switch CHQA for supplying power.
The utility model has the advantages and positive effects that:
1. the power management circuit is connected with the equipment group, and the controller is connected with the power management circuit and controls the power management circuit to supply power to the equipment group; the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.
Drawings
FIG. 1 is a connection block diagram of the present invention;
fig. 2 is a schematic diagram of the electrical connection of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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 a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
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 invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the power supply system of the unit LCU cabinet of the present invention includes a switch group and a power management circuit connected to the switch group, wherein the power management circuit is connected to an equipment group, and a controller is connected to the power management circuit and controls the power management circuit to supply power to the equipment group;
the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.
Further, the switch group further includes a sub switch 1JLQA and a sub switch 3JLQA, and the power management circuit includes a main power management circuit connected to the sub switch 1JLQA and an auxiliary power management circuit connected to the sub switch 3 JLQA; the main power management circuit and the auxiliary power management circuit have the same structure.
Further, the main power management circuit comprises a power controller 1PWR and a first rectifying circuit connected with the power controller 1PWR, and a power signal is controlled by the power controller 1 PWR; the auxiliary power supply management circuit comprises a power supply controller 2PWR and a rectification circuit II connected with the power supply controller 2PWR, wherein the rectification circuit I comprises a diode 1VD, and the rectification circuit II comprises a diode 2VD, and the diode 1VD and the diode 2VD are used for rectifying signals.
Further, the system also comprises an environment monitoring circuit, wherein the output end of the main switch JLQA is connected with the environment monitoring circuit; the environment monitoring circuit is used for gathering environmental data including congealing fog sensor BH1 and temperature sensor BH2, temperature sensor BH2 is connected soft starter JRQ and is convenient for start temperature sensor BH 2.
Furthermore, the lighting device also comprises an indicating circuit connected with the output end of the main switch JLQA, wherein the indicating circuit comprises a gate control switch SL and a lighting lamp EL connected with the gate control switch SL, and the lighting lamp EL is controlled by the gate control switch SL.
Furthermore, the controller is connected with the power management circuit and comprises a power module, a control module and a data exchange module.
Further, the equipment group comprises an electric leakage fire monitoring detector JH; and the power supply management circuit supplies power to the leakage fire monitoring detector JH through a switch JHQA.
Further, the device group comprises a touch display screen HMI; the power management circuit is connected with the touch display screen HMI for supplying power through a switch HMIQA.
The alarm circuit comprises an alarm bell HAB and a diode VDR connected with the alarm bell HAB; the power supply management circuit is connected with the alarm bell HAB through a switch HABQA, and the power supply system gives an alarm through the alarm bell HAB when abnormal.
Further, the equipment group comprises a network tester CH; the power management circuit is connected with the network tester CH through a switch CHQA for supplying power.
The working principle is as follows:
1. the main power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, and the first main power supply and the first standby power supply can be switched;
2. the controller is connected with the power management circuit, the power management circuit is connected with the equipment group, and the controller controls the power management circuit to supply power to the equipment group; the standby power supply II is connected with the equipment group and used for supplying power to the equipment group through the standby power supply II when a power supply system is abnormal;
3. the output end of the main switch JLQA is connected with the environment monitoring circuit; the environment monitoring circuit is used for gathering environmental data including congealing fog sensor BH1 and temperature sensor BH2, temperature sensor BH2 is connected soft starter JRQ and is convenient for start temperature sensor BH 2.
4. The power supply management circuit is connected with the alarm bell HAB through a switch HABQA, and the power supply system gives an alarm through the alarm bell HAB when abnormal.
The power management circuit is connected with the equipment group, and the controller is connected with the power management circuit and controls the power management circuit to supply power to the equipment group; the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a power supply system of unit LCU cabinet which characterized in that: the power management circuit is connected with the equipment group, and the controller is connected with the power management circuit and controls the power management circuit to supply power to the equipment group;
the switch group comprises a main switch JLQA and a main switch 2JLQA, a primary power supply is connected with the input end of the main switch JLQA, the other end of the main switch JLQA is connected with a first standby power supply through the main switch 2JLQA, the primary power supply and the first standby power supply can be switched, and a second standby power supply connected with the equipment group is used for supplying power to the equipment group through the second standby power supply when a power supply system is abnormal, so that the power supply safety is ensured, and the power supply stability is improved.
2. The power supply system of the unit LCU cabinet according to claim 1, wherein: the switch group further comprises a branch switch 1JLQA and a branch switch 3JLQA, and the power management circuit comprises a main power management circuit connected with the branch switch 1JLQA and an auxiliary power management circuit connected with the branch switch 3 JLQA; the main power management circuit and the auxiliary power management circuit have the same structure.
3. The power supply system of the unit LCU cabinet according to claim 2, wherein: the main power management circuit comprises a power controller 1PWR and a first rectifying circuit connected with the power controller 1PWR, and power signals are controlled through the power controller 1 PWR.
4. The power supply system of the unit LCU cabinet according to claim 1, wherein: the output end of the main switch JLQA is connected with the environment monitoring circuit; the environment monitoring circuit is used for gathering environmental data including congealing fog sensor BH1 and temperature sensor BH2, temperature sensor BH2 is connected soft starter JRQ and is convenient for start temperature sensor BH 2.
5. The power supply system of the unit LCU cabinet according to claim 1, wherein: the indicating circuit comprises a gate control switch SL and an illuminating lamp EL connected with the gate control switch SL, and the illuminating lamp EL is controlled by the gate control switch SL.
6. The power supply system of the unit LCU cabinet according to claim 1, wherein: the controller is connected with the power management circuit and comprises a power module, a control module and a data exchange module.
7. The power supply system of the unit LCU cabinet according to claim 1, wherein: the equipment group comprises a leakage fire monitoring detector JH; and the power supply management circuit supplies power to the leakage fire monitoring detector JH through a switch JHQA.
8. The power supply system of the unit LCU cabinet according to claim 1, wherein: the equipment set comprises a touch display screen HMI; the power management circuit is connected with the touch display screen HMI for supplying power through a switch HMIQA.
9. The power supply system of the unit LCU cabinet according to claim 1, wherein: the alarm circuit comprises an alarm bell HAB and a diode VDR connected with the alarm bell HAB; the power supply management circuit is connected with the alarm bell HAB through a switch HABQA, and the power supply system gives an alarm through the alarm bell HAB when abnormal.
10. The power supply system of the unit LCU cabinet according to claim 1, wherein: the equipment group comprises a network tester CH; the power management circuit is connected with the network tester CH through a switch CHQA for supplying power.
CN202121507554.2U 2021-07-02 2021-07-02 Power supply system of unit LCU cabinet Active CN215419721U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121507554.2U CN215419721U (en) 2021-07-02 2021-07-02 Power supply system of unit LCU cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121507554.2U CN215419721U (en) 2021-07-02 2021-07-02 Power supply system of unit LCU cabinet

Publications (1)

Publication Number Publication Date
CN215419721U true CN215419721U (en) 2022-01-04

Family

ID=79646700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121507554.2U Active CN215419721U (en) 2021-07-02 2021-07-02 Power supply system of unit LCU cabinet

Country Status (1)

Country Link
CN (1) CN215419721U (en)

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