CN111884319A - Power supply and distribution system of power changing station and power changing station - Google Patents

Power supply and distribution system of power changing station and power changing station Download PDF

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Publication number
CN111884319A
CN111884319A CN202010685166.7A CN202010685166A CN111884319A CN 111884319 A CN111884319 A CN 111884319A CN 202010685166 A CN202010685166 A CN 202010685166A CN 111884319 A CN111884319 A CN 111884319A
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CN
China
Prior art keywords
load
type
power supply
power
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010685166.7A
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Chinese (zh)
Inventor
和堂勇
杨全凯
王志海
牛欢欢
陈琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Jizhi New Energy Automobile Technology Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202010685166.7A priority Critical patent/CN111884319A/en
Publication of CN111884319A publication Critical patent/CN111884319A/en
Pending legal-status Critical Current

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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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B7/00—Enclosed substations, e.g. compact substations
    • H02B7/06—Distribution substations, e.g. for urban network
    • 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
    • H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Human Computer Interaction (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention relates to the technical field of power supply and distribution, in particular to a power supply and distribution system of a power changing station, which comprises an incoming line power distribution cabinet, an uninterrupted power distribution cabinet, a first type load and a second type load; the incoming line power distribution cabinet is electrically connected with the first type of load and the uninterrupted power distribution cabinet respectively, and the uninterrupted power distribution cabinet is electrically connected with the second type of load; the power supply loops of the first type of load and the second type of load are both provided with a circuit breaker and a contactor, and the circuit breaker and the contactor are both provided with auxiliary contacts; the second type of load comprises a station control system, the station control system is respectively electrically connected with the contactor and the auxiliary contact, and the station control system is used for carrying out closed-loop control on the on-off of power supply loops of the first type of load and the second type of load. The power supply and distribution system can realize closed-loop control on the power supply loop of each load according to the signals of the auxiliary contacts, and improves the safety and the convenience of the power supply and distribution system.

Description

Power supply and distribution system of power changing station and power changing station
Technical Field
The invention relates to the technical field of power supply and distribution, in particular to a power supply and distribution system of a power changing station and the power changing station.
Background
With the popularization of new energy vehicles, how to effectively provide quick and effective energy supply for vehicles with insufficient energy becomes a very much concerned problem for vehicle owners and various manufacturers. Taking an electric vehicle as an example, the current mainstream electric energy supply scheme comprises a charging scheme and a battery replacement scheme. Compared with the charging scheme, the battery replacement scheme is one of the main development directions of electric energy supply, because the replacement of the power battery can be completed in a short time and has no obvious influence on the service life of the power battery.
The battery replacement scheme is generally completed in a power replacement station, an electric vehicle power replacement system, a battery pack charging system, a control system and a monitoring fire-fighting system are generally arranged in the power replacement station, the integration level of the systems is high, the power utilization power is high, and the structure is complex, so that high requirements are provided for the design work of the power replacement station, and simultaneously, strict requirements are correspondingly provided for a power supply and distribution system of the power replacement station.
The power supply and distribution system of the existing electric automobile power changing station comprises a power distribution cabinet and a load module electrically connected with the power distribution cabinet, and the on-off states of a plurality of loads are integrally controlled by a controller in the power distribution process so as to obtain the power distribution effect. The convenience of the power distribution mode is not enough, and the power distribution process has great potential safety hazard, and the safety of the power distribution mode still needs to be improved.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a power supply and distribution system of a power change station and a power change station, which can improve the safety and convenience of the power supply and distribution system.
In order to solve the problems, the invention provides a power supply and distribution system of a power changing station, which comprises an incoming line power distribution cabinet, an uninterrupted power distribution cabinet, a first type of load and a second type of load; the incoming line power distribution cabinet is electrically connected with the first type of load and the uninterrupted power distribution cabinet respectively, and the uninterrupted power distribution cabinet is electrically connected with the second type of load; the power supply loops of the first type of load and the second type of load are both provided with a circuit breaker and a contactor, and the circuit breaker and the contactor are both provided with auxiliary contacts; the second type of load comprises a station control system, the station control system is respectively electrically connected with the contactor and the auxiliary contact, and the station control system is used for carrying out closed-loop control on the on-off of power supply loops of the first type of load and the second type of load.
Furthermore, the system also comprises a remote control system, the remote control system is in communication connection with the station control system, and the remote control system can control the on-off of the contactor by sending a control instruction to the station control system, so that the on-off of the power supply loops of the first type of load and the second type of load is controlled.
Specifically, first kind load includes uninterrupted power source, the inlet wire switch board passes through uninterrupted power source with uninterrupted power source electricity is connected, uninterrupted power source be used for to uninterrupted power source supplies power.
Further, the inlet wire switch board with uninterrupted power distribution cabinet all is provided with the power supply interruption device that opens the door, the power supply interruption device that opens the door includes cabinet door switch and main circuit breaker, cabinet door switch with main circuit breaker mechanical connection.
Further, the inlet wire switch board with uninterrupted power distribution cabinet all is provided with warning device, warning device with the control system electricity of standing is connected, the control system of standing still is used for judging whether first type load with the power supply circuit of second type load is normal, works as when the power supply circuit of first type load is unusual, controls the warning device of inlet wire switch board sends out the warning, works as when the power supply circuit of second type load is unusual, controls the warning device of uninterrupted power distribution cabinet sends out the warning.
Specifically, the warning device comprises a light warning device and/or a sound warning device.
Furthermore, the incoming line switch board with uninterrupted power distribution cabinet all is provided with on-the-spot control device, on-the-spot control device with the control system electricity that stands is connected, on-the-spot control device is used for right first type load with the on-the-spot control is carried out to second type load, on-the-spot control device includes one or more in scram button, control button, change over switch and the intelligent terminal.
Furthermore, the incoming line switch board with uninterrupted power distribution cabinet all is provided with the pilot lamp, the pilot lamp with the control system electricity that stands is connected, the pilot lamp is used for showing the break-make condition of the power supply circuit of first type load with the second type load.
Further, the first type of load comprises a water cooling unit, an air conditioner/fan, an off-station lighting system and a standby socket; the second type of load comprises a battery replacement device, a stacker crane, a charger system, a monitoring fire-fighting system, an environment control system and an in-station lighting/access control system.
The invention further protects a power conversion station, which comprises the power supply and distribution system of the power conversion station.
Due to the technical scheme, the invention has the following beneficial effects:
(1) according to the power supply and distribution system of the power changing station, the circuit breaker and the contactor are arranged in the power supply circuit of each load, and the auxiliary contact is configured for each circuit breaker and each contactor, so that the station control system can realize closed-loop control on the power supply circuit of each load according to the signal of the auxiliary contact, and the safety of the power supply and distribution system of the power changing station is improved.
(2) According to the power supply and distribution system of the power changing station, the independent indicator lamp and the independent control button are configured for the power supply loop of each load, so that the on-off condition of the power supply loop of each load can be visually displayed, and the independent control of each load is realized; the contactor on the power supply loop of each load is connected into the station control system, and the station control system is connected into the remote control system, so that the remote control function can be realized, and the convenience of the power supply and distribution system of the power changing station is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a power supply and distribution system of a power conversion station according to an embodiment of the present invention;
fig. 2 is a load schematic diagram of a power supply and distribution system of a power conversion station according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an incoming line distribution cabinet according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an uninterruptible power distribution cabinet according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an indicator light and a switch of the incoming line distribution cabinet according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an indicator light and a switch of an uninterruptible power distribution cabinet according to an embodiment of the present invention.
The system comprises a 10-incoming line power distribution cabinet, a 20-uninterruptible power distribution cabinet, a 30-first type load, a 31-uninterruptible power supply, a 40-second type load, a 41-station control system, a 50-circuit breaker, a 60-contactor and a 70-auxiliary contact.
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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to the specification, fig. 1 to 6, one embodiment of the invention provides a power supply and distribution system of a power changing station. As shown in fig. 1, the system may include: the system comprises an incoming line power distribution cabinet 10, an uninterruptible power distribution cabinet 20, a first type load 30 and a second type load 40; the incoming line power distribution cabinet 10 is electrically connected with the first type load 30 and the uninterruptible power distribution cabinet 20 respectively, and the uninterruptible power distribution cabinet 20 is electrically connected with the second type load 40; a circuit breaker 50 and a contactor 60 are arranged on the power supply circuit of each of the first type load 30 and the second type load 40, and an auxiliary contact 70 is arranged on each of the circuit breaker 50 and the contactor 60; the second type of load 40 includes a station control system 41, the station control system 41 is electrically connected to the contactor 60 and the auxiliary contact 70, and the station control system 41 is configured to perform closed-loop control on/off of power supply circuits of the first type of load 30 and the second type of load 40.
Specifically, the circuit breaker 50 may be used to protect a power supply circuit where the circuit breaker 50 is located, and when a short-circuit fault or a severe overload occurs in the power supply circuit, the circuit breaker 50 may cut off a current of the power supply circuit. The contactor 60 can be used for controlling the on-off of a power supply loop where the contactor 60 is located, the contactor 60 is connected to the station control system 41 through a signal, and the station control system 41 can control the on-off of the power supply loops of the first type load 30 and the second type load 40 by controlling the on-off of the contactor 60; the auxiliary contact 70 is in signal connection with the station control system 41, and the station control system 41 can implement closed-loop control on the power supply loops of the first type load 30 and the second type load 40 according to the signal of the auxiliary contact 70.
In an embodiment of the present invention, the first type of load 30 may include an Uninterruptible Power Supply (UPS) 31, the incoming line power distribution cabinet 10 may be electrically connected to the uninterruptible power distribution cabinet 20 through the UPS 31, and the UPS 31 is configured to supply power to the uninterruptible power distribution cabinet 20.
Specifically, inlet wire switch board 10 can utilize national power 380V power to supply power, UPS 31 can utilize inlet wire switch board 10's input power source charges, can be right under the unexpected condition of power supply uninterrupted power distribution cabinet 20 lasts the power supply, realizes uninterrupted power distribution cabinet 20's uninterrupted power demand.
In the embodiment of the present invention, referring to fig. 2 of the specification, the first type of load 30 may further include a water chiller, an air conditioner/fan, an off-site lighting system, and a spare socket; the second type of load 40 may further include a battery replacement device, a stacker crane, a charger system, a monitoring fire protection system, an environmental control system, and an in-station lighting/access control system.
In practical applications, the power supply loops of the first type of load 30 and the second type of load 40 may further include a relay or a 24V ac/dc power supply, the relay is electrically connected to the station control system 41, and the station control system 41 may control the on/off of the power supply loops of the first type of load 30 and the second type of load 40 according to a signal of the relay. Illustratively, referring to the attached drawings 3 and 4 in combination with the description, a relay may be disposed in a power supply loop of the air conditioner/fan and a power supply loop of the lighting/access control system in the station, and a 24V ac/dc power supply may be disposed in a power supply loop of the power changing platform power supply and a power supply loop of the stacker power supply.
In the embodiment of the present invention, both the incoming line power distribution cabinet 10 and the uninterruptible power distribution cabinet 20 are provided with a door opening power-off device, where the door opening power-off device includes a cabinet door switch and a main circuit breaker, and the cabinet door switch is mechanically connected to the main circuit breaker.
Specifically, when the cabinet door switch is opened, the main circuit breaker can be disconnected, so that the door opening and power off functions can be realized. The cabinet door switch signal can also be accessed to the station control system 41, and the station control system 41 can control the on/off of the power supply loops of the first type load 30 and the second type load 40 according to the cabinet door switch signal.
In the embodiment of the present invention, the incoming line power distribution cabinet 10 and the uninterruptible power distribution cabinet 20 are both provided with warning devices, the warning devices are electrically connected to the station control system 41, the station control system 41 can also be used for determining whether the power supply loops of the first type of load 30 and the second type of load 40 are normal, when the power supply loop of the first type of load 30 is abnormal, the warning device of the incoming line power distribution cabinet 10 is controlled to send a warning, and when the power supply loop of the second type of load 40 is abnormal, the warning device of the uninterruptible power distribution cabinet 20 is controlled to send a warning.
Specifically, the warning device may include a light warning device and/or a sound warning device. The station control system 41 can judge the abnormal condition of the power supply loops of the first type load 30 and the second type load 40 according to the signals of the contactor 60 and the auxiliary contact 70, and when a certain power supply loop is abnormal, the electrical fault can be displayed by controlling the light alarm to flash and/or controlling the sound alarm to give an alarm.
In the embodiment of the present invention, both the incoming line power distribution cabinet 10 and the uninterruptible power distribution cabinet 20 are provided with indicator lamps, the indicator lamps are electrically connected to the station control system 41, and the indicator lamps are used for displaying the on-off condition of the power supply loops of the first type load 30 and the second type load 40.
Specifically, the power supply of the indicator light is connected to the station control system 41, the station control system 41 can control the indicator light according to the on-off condition of the auxiliary contact 70, when the power supply loop of a certain load is connected, the indicator light corresponding to the power supply loop can be controlled to be turned on, the indicator light can visually display the on-off condition of the power supply loop of each load, and the convenience of the system is improved. In practical applications, one indicator light may be provided for each of the first type of load 30 and the second type of load 40, or one indicator light may be provided for a plurality of loads. Illustratively, with reference to fig. 5 and 6 in conjunction with the description, the indicator lights may include a water chiller indicator light, an air conditioner/fan indicator light, a power changing platform indicator light, an environmental control system indicator light, and the like.
In the embodiment of the present invention, both the incoming line power distribution cabinet 10 and the uninterruptible power distribution cabinet 20 are provided with an on-site control device, the on-site control device is electrically connected to the station control system 41, the on-site control device is used for on-site control of the first type of load 30 and the second type of load 40, and the on-site control device includes one or more of an emergency stop button, a control button, a change-over switch and an intelligent terminal.
Specifically, the signal of the field control device is connected to the station control system 41, and the station control system 41 can control the on/off of the power supply loops of the first type load 30 and the second type load 40 according to the signal of the field control device. In practical application, at least one field control device can be arranged for each first type load 30 and each second type load 40, and the power supply loop of each load can be independently controlled under the condition that the cabinet door is not opened, so that the convenience of the system is improved. Illustratively, referring to fig. 5 and fig. 6 in conjunction with the description, the field control device may include an uninterruptible power supply control button, an off-station lighting control button, a charging cabinet control button, a lighting/entrance guard control button, an emergency stop button, a local/remote mode switch, etc., which may be connected to the station control system 41 to implement local/remote mode switching; the emergency stop button can be switched into the station control system 41, and in case of emergency, pressing this button can open the contactors 60 in all power supply circuits.
In a possible embodiment, the system may further include a remote control system, which is in communication connection with the station control system 41, and the remote control system may control the on/off of the contactor 60 by sending a control command to the station control system 41, so as to control the on/off of the power supply circuit of the first type of load 30 and the second type of load 40.
Specifically, by connecting a remote control system to the station control system 41 in a communication manner, it is possible to realize remote control of each load by the remote control system, and realize a remote control function of the system.
An embodiment of the invention further provides a power conversion station, which comprises the power supply and distribution system of the power conversion station.
In summary, the power supply and distribution system of the power exchanging station has the following beneficial effects:
according to the power supply and distribution system of the power changing station, the circuit breaker and the contactor are arranged in the power supply circuit of each load, and the auxiliary contact is configured for each circuit breaker and each contactor, so that the station control system can realize closed-loop control on the power supply circuit of each load according to the signal of the auxiliary contact, and the safety of the power supply and distribution system of the power changing station is improved.
According to the power supply and distribution system of the power changing station, the independent indicator lamp and the independent control button are configured for the power supply loop of each load, so that the on-off condition of the power supply loop of each load can be visually displayed, and the independent control of each load is realized; the contactor on the power supply loop of each load is connected into the station control system, and the station control system is connected into the remote control system, so that the remote control function can be realized, and the convenience of the power supply and distribution system of the power changing station is improved.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.

Claims (10)

1. The power supply and distribution system of the power changing station is characterized by comprising an incoming line power distribution cabinet (10), an uninterrupted power distribution cabinet (20), a first type of load (30) and a second type of load (40);
the incoming line power distribution cabinet (10) is electrically connected with the first type of load (30) and the uninterrupted power distribution cabinet (20) respectively, and the uninterrupted power distribution cabinet (20) is electrically connected with the second type of load (40);
a circuit breaker (50) and a contactor (60) are arranged on power supply circuits of the first type of load (30) and the second type of load (40), and auxiliary contacts (70) are arranged on the circuit breaker (50) and the contactor (60);
the second-class load (40) comprises a station control system (41), the station control system (41) is electrically connected with the contactor (60) and the auxiliary contact (70) respectively, and the station control system (41) is used for carrying out closed-loop control on the on-off of power supply circuits of the first-class load (30) and the second-class load (40).
2. The system according to claim 1, characterized in that it further comprises a remote control system, said remote control system being in communication connection with said station control system (41), said remote control system being capable of controlling the switching of said contactor (60) by sending control commands to said station control system (41), thereby controlling the switching of the power supply circuits of said first type of load (30) and said second type of load (40).
3. The system according to claim 1 or 2, characterized in that said first type of load (30) comprises an uninterruptible power supply (31), said incoming line distribution cabinet (10) being electrically connected to said uninterruptible distribution cabinet (20) through said uninterruptible power supply (31), said uninterruptible power supply (31) being adapted to supply power to said uninterruptible distribution cabinet (20).
4. The system according to claim 1 or 2, characterized in that both said incoming line switch cabinet (10) and said uninterruptible power distribution cabinet (20) are provided with door opening power-off devices comprising a cabinet door switch and a main breaker, said cabinet door switch being mechanically connected to said main breaker.
5. The system according to claim 1 or 2, characterized in that the incoming line switch board (10) and the uninterruptible power distribution board (20) are both provided with warning devices, the warning devices are electrically connected with the station control system (41), the station control system (41) is further configured to determine whether the power supply loops of the first type of load (30) and the second type of load (40) are normal, when the power supply loop of the first type of load (30) is abnormal, the warning devices of the incoming line switch board (10) are controlled to give a warning, and when the power supply loop of the second type of load (40) is abnormal, the warning devices of the uninterruptible power distribution board (20) are controlled to give a warning.
6. The system of claim 5, wherein the warning device comprises a light warning device and/or an audible warning device.
7. The system according to claim 1 or 2, characterized in that said incoming distribution cabinet (10) and said uninterruptible distribution cabinet (20) are each provided with a field control device, said field control device being electrically connected to said station control system (41), said field control device being adapted to perform a field control of said first type of load (30) and said second type of load (40), said field control device comprising one or more of an emergency stop button, a control button, a change-over switch and a smart terminal.
8. The system according to claim 1 or 2, characterized in that both the incoming line distribution cabinet (10) and the uninterruptible distribution cabinet (20) are provided with indicator lights, which are electrically connected to the station control system (41), and which are used to display the on/off status of the power supply circuits of the first type of load (30) and the second type of load (40).
9. System according to claim 1 or 2, characterized in that said loads of the first type (30) comprise water chiller units, air conditioners/fans, off-site lighting systems and spare sockets; the second type of load (40) comprises a battery replacement device, a stacker crane, a charger system, a monitoring fire-fighting system, an environment control system and an in-station lighting/access control system.
10. A power conversion station, characterized by comprising a power supply and distribution system of the power conversion station as claimed in any one of claims 1 to 9.
CN202010685166.7A 2020-07-16 2020-07-16 Power supply and distribution system of power changing station and power changing station Pending CN111884319A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113394872A (en) * 2021-05-28 2021-09-14 蓝谷智慧(北京)能源科技有限公司 Power supply and distribution system of power conversion station and control method of power supply and distribution system
CN114394027A (en) * 2022-02-22 2022-04-26 国网安徽电动汽车服务有限公司 Method for guaranteeing remote restart safety of electric automobile charging pile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113394872A (en) * 2021-05-28 2021-09-14 蓝谷智慧(北京)能源科技有限公司 Power supply and distribution system of power conversion station and control method of power supply and distribution system
CN114394027A (en) * 2022-02-22 2022-04-26 国网安徽电动汽车服务有限公司 Method for guaranteeing remote restart safety of electric automobile charging pile

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