CN111555434B - Model selection method and device for UPS system of power station replacement and storage medium - Google Patents

Model selection method and device for UPS system of power station replacement and storage medium Download PDF

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Publication number
CN111555434B
CN111555434B CN202010337652.XA CN202010337652A CN111555434B CN 111555434 B CN111555434 B CN 111555434B CN 202010337652 A CN202010337652 A CN 202010337652A CN 111555434 B CN111555434 B CN 111555434B
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power
ups
station
power consumption
swapping
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CN111555434A (en
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杨欣
杨全凯
王志海
张志强
陈狄松
吴元和
韩磊
王雷
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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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
    • H02J9/062—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 for AC powered loads
    • 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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to the technical field of new energy vehicles, and provides a model selection method and a model selection device for a UPS system of a power station changing system and a storage medium. The method comprises the following steps: acquiring load required power of a power swapping station; acquiring power-on starting power of a power conversion system of a power conversion station; determining the model of the UPS host according to the load demand power and the power-on starting power; acquiring power consumption information when the power switching station is powered off, wherein the power consumption information comprises the total power switching consumption of a power switching system; determining the type of the UPS battery according to the power consumption information; and determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery. The total power conversion power consumption of the power conversion system designed by the invention can meet the minimum power consumption requirement of the power conversion system after the power supply station is powered off, and ensure the work after the power supply station is powered off; the battery capacity of the selected UPS battery is small, and the cost can be reduced. The invention provides a better model selection strategy of the UPS by combining the practical application scene of the power station.

Description

Model selection method and device for UPS system of power station replacement and storage medium
Technical Field
The invention relates to the technical field of new energy vehicles, in particular to a model selection method and a model selection device for a UPS system of a power station and a storage medium.
Background
Ups (uninterruptible Power supply), i.e., an uninterruptible Power supply, is a system device that connects a battery to a host and converts direct current Power to commercial Power through a module circuit such as a host inverter. The power supply device is mainly used for providing stable and uninterrupted power supply for a single computer, a computer network system or other power electronic equipment such as an electromagnetic valve, a pressure transmitter and the like.
In order to ensure that the new energy automobile power exchanging station can continuously execute the power exchanging action when the commercial power is abnormal and the power is cut off, prevent the power exchanging from being stopped due to the power abnormality and the power cut off, and avoid the situation that the power exchanging vehicle is trapped in the power exchanging station and cannot move, a UPS system is arranged in the power exchanging station to provide uninterrupted power supply for the power exchanging station, and meanwhile, the power consumption quality of the whole follow-up electric equipment can be greatly improved.
The UPS system mainly comprises a power conversion system, a monitoring system, a fire-fighting system, a lighting system and the like, and the UPS host needs to adopt a three-in three-out type because the power required by the power conversion equipment is three-phase power.
The conventional power station in the market is not provided with a UPS system, the working conditions of mains supply abnormality and power failure are not considered, and a reasonable UPS host and a UPS battery model selection strategy are not carried out.
Therefore, it is necessary to provide a solution to the problem of unreasonable selection of the UPS host and the UPS battery in the prior art.
Disclosure of Invention
In order to solve the problem of unreasonable model selection of a UPS host and a UPS battery in the prior art, the invention provides a model selection method, a model selection device and a storage medium of a UPS system of a power station changing system.
The invention provides a model selection method of a UPS system of a power swapping station, which comprises the following steps:
acquiring load required power of a power swapping station;
acquiring power-on starting power of a power conversion system of the power conversion station;
determining the model of the UPS host according to the load demand power and the power-on starting power;
acquiring power consumption information when the power switching station is powered off, wherein the power consumption information comprises the total power switching power consumption of a power switching system;
determining the type of the UPS battery according to the power consumption information;
and determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
The further improvement of the model selection method for the UPS system of the power swapping station provided by the present invention is that the obtaining of the load demand power of the power swapping station includes:
acquiring peak power of the power swapping station in a first state, a power factor of the power swapping device and a preset output power factor of the UPS host;
and determining the load required power according to the peak power, the power factor and the preset output power factor.
The further improvement of the model selection method for the power swapping station UPS system provided by the present invention is that the determining the model of the UPS host according to the load demand power and the power-on start power includes:
acquiring a preset coefficient;
determining the product of the preset coefficient and the power-on starting power;
determining a value range of the rated power of the UPS host machine according to the product and the load required power;
and determining the model of the UPS host according to the value range.
The further improvement of the model selection method for the UPS system of the power swapping station provided by the present invention is that the obtaining of the power consumption information of the power swapping station includes:
acquiring single power switching power consumption of the power switching system and the power switching times after power failure;
and determining the total power consumption of the battery swapping system according to the single battery swapping power consumption of the battery swapping system and the battery swapping times.
The further improvement of the model selection method of the UPS system of the power swapping station provided by the invention is that the power consumption information further comprises standby power consumption of the power swapping system, power consumption of the lighting system, power consumption of the monitoring system, power consumption of the fire-fighting system and power consumption of the transfer equipment.
The further improvement of the model selection method of the power conversion station UPS system provided by the invention is that the standby power consumption of the power conversion system is the power consumption when the power conversion system is in a standby state, the standby state is the power failure of the motor load of the charging bin and the power conversion bin, and the standby power consumption of the power conversion system comprises the non-motor power consumption of the charging bin.
In a further improvement of the model selection method for the UPS system of the power swapping station provided by the present invention, the power consumption of the lighting system includes a first lighting power consumption of a first lighting circuit and a second lighting power consumption of a second lighting circuit, the first lighting circuit is configured to provide lighting for the monitoring system, and the second lighting circuit is configured to provide lighting for other devices in the power swapping station except for the monitoring system in the power swapping period after the power failure.
The further improvement of the model selection method for the power conversion station UPS system provided by the present invention is that the determining the model of the UPS battery according to the power consumption information includes:
determining the dischargeable quantity of the UPS battery according to the power consumption information;
and determining the model of the UPS battery according to the dischargeable quantity.
In addition, the invention also provides a model selection device of the power station swapping UPS system, which is used for executing the method, and the device comprises:
the first acquisition module is used for acquiring the load demand power of the power swapping station;
the second acquisition module is used for acquiring the power-on starting power of a power exchanging system of the power exchanging station;
the first determining module is used for determining the model of the UPS host according to the load required power and the power-on starting power;
a third obtaining module, configured to obtain power consumption information of a power failure state of the power swapping station, where the power consumption information includes a total power swapping power consumption of a power swapping system;
the second determining module is used for determining the model of the UPS battery according to the power consumption information;
and the third determining module is used for determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
In addition, the present invention also provides a computer storage medium, in which at least one instruction or at least one program is stored, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the method described above.
By adopting the technical scheme, the model selection method, the model selection device and the storage medium of the UPS system of the power swapping station provided by the invention have the following beneficial effects: the two working conditions are comprehensively considered, and a larger rated power range of the UPS host is selected, so that the actual requirements of the power swapping station can be better met; the total power conversion power consumption of the power conversion system designed by the invention can meet the minimum power consumption requirement of the power conversion system after the power supply station is powered off, and ensure the work after the power supply station is powered off; the battery capacity of the selected UPS battery is small, and the cost can be reduced. The invention provides a better model selection strategy of the UPS and a certain energy-saving measure to prolong the power supply time of the UPS battery by combining the practical application scene of the power changing station. The power measuring and calculating method based on the battery swapping action flow takes the peak power as the basic basis for the type selection of the UPS host; according to the starting power of the power station during power-on starting, the overload capacity of the UPS system is fully utilized, and the rated power of the UPS host is designed; the UPS is used as an essential element of the fire-fighting equipment, and the replacement station UPS can simultaneously cover the fire-fighting function; each system of the power station can independently calculate the electric quantity requirement, and the UPS battery type selection is carried out according to the electric quantity requirement calculation, and the battery discharge quantity meeting the electric quantity required by the power station is determined according to the maximum power supply time t.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments 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 present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a power output curve diagram of a power station in the prior art for power-on startup and completion of one power swapping process;
fig. 2 is a flowchart of a model selection method for a swapping station UPS system according to embodiment 1 of the present invention;
fig. 3 is a graph of an actual power conversion power consumption of a single power conversion;
fig. 4 is a block diagram of a model selection apparatus of a power swapping station UPS system according to embodiment 2 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
From the spatial arrangement angle, the new energy automobile trades power station and is divided into two parts of charging storehouse and trade electric storehouse and charges that storage and the charging of battery are mainly carried out, trades electric storehouse and mainly carries out the locking and unlocking and transporting of vehicle battery package.
From the perspective of system functions, the power exchanging station covers a power exchanging system, a monitoring system, a fire fighting system, an illuminating system and the like.
The battery replacement system is responsible for executing the whole action flow of battery replacement to complete the battery replacement of the vehicle and is also responsible for moving the battery out of a sandbox outside the battery replacement station when the battery is smoked, ignited and exploded; the monitoring system has the functions of control, security protection, environment monitoring and the like; the fire-fighting system executes smoke detection in the station and executes fire extinguishing action; the lighting system is used for meeting the illumination requirements of normal operation of the power conversion station, the lighting requirements of the video monitoring equipment, the outdoor decoration lighting and the like.
The power supply range of the UPS system covers four major parts of the battery replacement equipment, the monitoring system, the fire-fighting system and the lighting system, and the power supply path is as follows: the mains supply supplies power to the UPS system, and the UPS system supplies power to the battery replacement system, the monitoring system, the fire fighting system and the lighting system respectively.
In the four systems of the battery replacement system, the monitoring system, the fire fighting system and the lighting system, the power of the battery replacement equipment constantly changes along with the time, and the power of the other three systems is relatively constant; the power of the monitoring system and the power of the lighting system are respectively b and d, the standby power of the fire-fighting system c1 and the fire-fighting starting power c 2.
In the battery swapping station, the battery swapping process may be: the vehicle in the electricity changing bin reaches a preset position; the vehicle in the battery changing bin is horizontally lifted and leveled; the battery transportation platform in the power change bin ascends, and the stacker in the charging bin runs to a full-charge battery bin position; unlocking the under-charged batteries in the power change bin, and taking the fully charged batteries by a stacker in the charging bin; a battery transportation platform in the power change bin carries the undercharged battery to descend, and a stacker in the charging bin runs to a cache station; the battery transportation platform in the power change bin transports the undercharged batteries to a caching station, and the stacker in the charging bin transports the fully charged batteries to caching work; transferring the fully charged batteries to a battery transportation platform in the battery replacing bin, and taking the undercharged batteries by a stacker in the charging bin; the battery transportation platform in the power change bin carries fully charged batteries to rise, and the stacker in the charging bin runs to a battery bin position; fully charged batteries in the battery replacing bin are locked, and undercharged batteries in the charging bin are placed in a battery bin position; the components are reset.
Different from other production line type devices, in the battery replacement process, after the whole battery replacement station is powered on and started, the motors in the battery replacement station are started and stopped according to the flow sequence to complete the battery replacement process once, and fig. 1 shows a power output curve of the battery replacement station for powering on and starting and completing the battery replacement process once, wherein the power on and starting is a, the peak power of the battery replacement process is a, and the standby power is e.
In the prior art, the model selection of the UPS is configured for the motor equipment, the power experience value of the UPS host is generally 1.5-2 times of the rated power of the motor, the reserved margin of the UPS host power is large in the actual use process, and the great waste of the UPS power capability is caused.
In order to solve the problem of unreasonable model selection of a UPS host and a UPS battery in the prior art, the invention provides a model selection method, a model selection device and a storage medium of a UPS system of a power station changing system.
Example 1:
referring to fig. 2, a type selection method for a swapping station UPS system provided in embodiment 1 includes:
step S101: acquiring load required power of a power swapping station;
step S102: acquiring power-on starting power of a power conversion system of a power conversion station;
step S103: determining the model of the UPS host according to the load demand power and the power-on starting power;
step S104: acquiring power consumption information when the power switching station is powered off, wherein the power consumption information comprises the total power switching consumption of a power switching system;
step S105: determining the type of the UPS battery according to the power consumption information;
step S106: and determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
In this embodiment 1, the model of the UPS host is determined first, then the model of the UPS battery is determined, and the model of the UPS system is determined according to the model of the UPS host and the model of the UPS battery.
Further, step S101 includes: acquiring peak power of a power swapping station in a first state, a power factor of a power swapping device and a preset output power factor of a UPS (uninterrupted power supply) host; and determining the power required by the load according to the peak power, the power factor and the preset output power factor. Specifically, in this embodiment 1, the load required power p is (a/η + b + c1+ d)/δ, where p is the load required power, a is the peak power when the swapping station operates normally, η is the power factor of the swapping device (swapping system in the swapping station), b is the power of the monitoring system, c1 is the standby power of the fire protection system, d is the power of the lighting system, and δ is the output power factor of the UPS host. a. Eta, b, c1, d, and delta are parameters designed in designing the power conversion station, and are known parameters, and in this embodiment 1, the load required power p is obtained according to a, eta, b, c1, d, and delta.
The power-on start power in step S102 is the power-on start power a in fig. 1.
Further, step S103 includes: acquiring a preset coefficient; determining the product of a preset coefficient and power-on starting power; determining a value range of the rated power of the UPS host machine according to the product and the load demand power; and determining the model of the UPS host according to the value range.
As can be seen from fig. 1, the power-on starting power a of the power exchanging station is obviously greater than the peak power a of the power exchanging station during normal operation, and the peak time is shorter, about 1 s; within the period range of 1s, the rated power P of the UPS mainframe cannot meet the requirement of the power A for starting and electrifying. However, the inventor of the invention finds that the load power of a certain brand of UPS is less than or equal to 110% P, and the overload time can be 60 min; the load power is less than or equal to 125% P, and the overload time is 10 min; the load power is less than or equal to 150 percent P, and the overload time can be 1 min; the inventor summarizes that the power-off starting frequency of the power change station is low, and the UPS has strong overload capacity; therefore, in the embodiment 1, the two characteristics are fully utilized, the rated frequency of the host is determined by taking the maximum overload capacity of the UPS as 150%, and specifically, only a is required to be equal to or less than 1.5P. That is, in this embodiment 1, the preset system may be 1/1.5, and the product of the preset coefficient and the power-on starting power is a/1.5; the value range of the rated power P of the UPS host machine obtained according to the product is P which is more than or equal to A/1.5. In addition, in this embodiment 1, the UPS host rated power P closest to the reference load required power P is selected with reference to the load required power P, where the UPS host rated power P is not less than the load required power P, that is, P is greater than or equal to P. That is, in this embodiment 1, the value range of the rated power P of the UPS host is determined according to that P ≧ a/1.5 and P ≧ P; and further determining the model of the UPS host according to the value range.
Or the primary selection can be carried out according to the peak power a during normal operation, namely, the primary range of the rated power P of the UPS host is determined according to the load demand power P; and determining the final range of the rated power P of the UPS host according to the product of the preset coefficient and the power-on starting power.
As can be seen, in this embodiment 1, the model selection of the UPS host in the power swapping station considers the working conditions of two aspects: the method comprises the following steps that starting power A when the power exchanging station is powered on and started again after power failure, and peak power a when the power exchanging station operates normally; the two working conditions are comprehensively considered, a larger rated power range of the UPS host is selected, and the actual requirements of the power swapping station can be better met.
The UPS battery has the main function that under the condition that the commercial power is cut off, the battery supplies power to the subsequent load through the inverter, the power quantity and the load power determine the power supply duration, and therefore the power supply duration can be prolonged by increasing the power quantity of the battery and reducing the load power. For the power change station, the largest energy consumption system is the power change system, the UPS battery is not practical to continuously supply power to the power change system, and the UPS mainly has the function of ensuring that the power change process at the moment of power failure of a power grid is executed, so that the situation that a customer vehicle is trapped in the power change station due to power failure and customer experience is influenced is prevented. Therefore, in this embodiment 1, the model of the UPS battery is determined according to the power consumption information, so that it can be ensured that the power swapping process at the moment when the power grid is powered off is executed after the power swapping station is powered off. Specifically, after the power station is powered off, the UPS may complete the last power change performed during the power off, or the last n times of power changes, where n is preferably less than 10; moreover, power supply for a certain time t can be provided for monitoring, fire fighting and illumination, the power supply time t is preferably more than 1 hour, and t is the time length of the UPS power supply after power failure; in addition, a power station changing and closing process can be performed, such as a roller shutter door closing and the like.
Further, step S104 includes: acquiring single power switching power consumption of a power switching system and the power switching times after power failure; and determining the total power consumption of the battery swapping system according to the single battery swapping power consumption and the battery swapping times of the battery swapping system. Specifically, the power consumption of the battery replacement system is changed at a single time
Figure BDA0002467321020000081
Wherein t1 is the starting time point of a single battery replacement, t2 is the ending time point of a single battery replacement, ptThe actual power conversion power consumption during single power conversion is shown, n is the power conversion frequency, and preferably, n is more than or equal to 1 and less than 10. The actual power consumption for single power swapping is shown in fig. 3. Therefore, the total power consumption W of the battery swapping system in this embodiment 1A＝n*Wa. In this embodiment 1, it is ensured that a UPS battery meeting the actual battery power requirement can be selected by designing the total power consumption of battery replacement.
Further, the power consumption information further comprises standby power consumption of the battery replacement system, power consumption of the lighting system, power consumption of the monitoring system, power consumption of the fire fighting system and power consumption of the transfer equipment.
Furthermore, the standby power consumption of the battery replacement system is the power consumption of the battery replacement system in a standby state, the standby state is the power failure of the motor load of the charging bin and the battery replacement bin, and the standby power consumption of the battery replacement system comprises the power consumption of the non-motor of the charging bin. After the n times of battery replacement processes are finished, the battery replacement equipment enters a standby state, the battery replacement equipment needs to perform battery transferring actions for the battery high temperature abnormity which possibly occurs at any time, and transfer the abnormal battery to an off-station sandbox to prevent the battery from being ignited and exploded in the battery replacement station. In this embodiment 1, the power failure of the motor load and the battery replacement bin in the standby state of the charging bin means that: the battery transfer equipment is positioned in the battery compartment, all the enabling of the equipment in the battery replacing compartment can be disconnected, and the standby power consumption of the battery replacing system is reduced; for the charging bin, a motor load on the transfer equipment can be disconnected from the high-voltage enable, the position of the motor is restrained through a motor brake, only control electricity is reserved, and the high-voltage enable of the motor is started instantly when a battery is abnormal; therefore, the standby power consumption of the battery replacement system can be reduced by more than 50%. Specifically, standby power consumption W of battery replacement systeme＝e[t-n(t2-t1)]. t is the time length of the UPS after power failure, the numerical value of t can be set by a user, preferably, t is more than or equal to 1 hour, and e is the power of the power exchanging system in standby, and is a parameter obtained by design when the power exchanging station is designed; t2-t1, the obtained time length of single battery replacement is. The standby power consumption designed in this embodiment 1 can meet the power consumption requirement when the battery replacement system is in the standby state.
Further, the power consumption of the lighting system comprises a first lighting power consumption of a first lighting circuit and a second lighting power consumption of a second lighting circuit, the first lighting circuit is used for providing lighting for the monitoring system, and the second lighting circuit is used for providing lighting for other devices except the monitoring system in the power switching station in the power switching period after power failure. After the n times of power changing process is finished, the power changing station is closed, the station door is closed, the lighting system in the station mainly provides lighting requirements for the monitoring system, but the monitoring system has lower requirements on the brightness of the lighting,the brightness of the lamp is about 1/3 of normal full light, therefore, during the design in the early period, each area lighting circuit can be divided into more than two paths, the monitoring lighting circuit and other lighting circuits are controlled in a grading way, and after the station is closed, only the monitoring lighting circuit is started, so that the power consumption of the lighting system is effectively reduced. In particular, the lighting system power consumption WdDt, d is the power of the lighting system, which is a parameter designed in the design of the power station. The power consumption of the lighting system designed in this embodiment 1 can meet the power consumption requirement of the lighting system after the power failure of the power conversion station.
Further, the power consumption W of the system is monitoredbBt and b are power of the monitoring system and are parameters obtained by design when the power station is designed.
Further, the fire extinguishing system consumes Wc＝c1(t-t’)+c2t ', c1 is the standby power of the fire-fighting system, t is the total working time of the UPS after power failure, t' is the fire-fighting starting time, and c2 is the fire-fighting starting power. c1, t' and c2 are parameters designed when the power station is designed, and are known parameters.
Further, the transfer device power consumption is the power consumption of the transfer device when transferring the battery. Specifically, WfThe power consumption of the transfer equipment is that the transfer equipment moves the battery out of the power conversion station when the battery is abnormal. The battery abnormity refers to the situation that the battery state is abnormal (such as temperature abnormity) detected by a management system (BMS) in the battery, the transfer equipment can move the battery out of the battery replacing station when the temperature of the battery is abnormal, and the battery is transferred to a fire fighting sandbox before thermal runaway (explosion) occurs in the battery, so that the battery is prevented from being exploded in the battery replacing station.
Furthermore, in the step of obtaining the power consumption information when the battery replacement station is powered off, the power consumption information is the total power consumption W of the battery replacement system, wherein W is greater than or equal to n × Wa+We+Wb+Wc+Wd+Wf。
Further, step S105 includes: determining the dischargeable quantity of the UPS battery according to the power consumption information; and determining the model of the UPS battery according to the dischargeable quantity.
The total power conversion power consumption of the power conversion system designed in this embodiment 1 can meet the minimum power consumption requirement of the power conversion system after the power failure of the power conversion station, and ensure the work after the power failure of the power conversion station; the battery capacity of the selected UPS battery is small, and the cost can be reduced. In this embodiment 1, a better model selection strategy of the UPS is provided in combination with an actual application scenario of the power swapping station, and a certain energy saving measure is provided to prolong the power supply time of the UPS battery.
Example 2:
referring to fig. 4, in this embodiment 2, a model selection apparatus for a power swapping station UPS system is provided, which is configured to perform the method described above, and the apparatus includes:
the first obtaining module 10 is configured to obtain a load required power of the power swapping station;
the second obtaining module 20 is configured to obtain power-on starting power of a power swapping system of the power swapping station;
the first determining module 30 is configured to determine the model of the UPS host according to the load demand power and the power-on starting power;
the third obtaining module 40 is configured to obtain power consumption information of a power failure state of the power swapping station, where the power consumption information includes a total power swapping power consumption of the power swapping system;
a second determining module 50, configured to determine a model of the UPS battery according to the power consumption information;
and a third determining module 60, configured to determine the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
Example 3:
this embodiment 3 provides a computer storage medium, in which at least one instruction or at least one program is stored, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the method described above.
The total power conversion power consumption of the power conversion system designed by the invention can meet the minimum power consumption requirement of the power conversion system after the power supply station is powered off, and ensure the work after the power supply station is powered off; the battery capacity of the selected UPS battery is small, and the cost can be reduced. The invention provides a better model selection strategy of the UPS and a certain energy-saving measure to prolong the power supply time of the UPS battery by combining the practical application scene of the power changing station.
The power measuring and calculating method based on the battery swapping action flow takes the peak power as the basic basis for the type selection of the UPS host; according to the starting power of the power station during power-on starting, the overload capacity of the UPS system is fully utilized, and the rated power of the UPS host is designed; the UPS is used as an essential element of the fire-fighting equipment, and the replacement station UPS can simultaneously cover the fire-fighting function; each system of the power station can independently calculate the electric quantity requirement, and the UPS battery type selection is carried out according to the electric quantity requirement calculation, and the battery discharge quantity meeting the electric quantity requirement of the power station is determined according to the maximum power supply time t; the power conversion station can perform certain power consumption reduction measures to prolong the power supply time of the UPS battery.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The model selection method of the swapping station UPS system is characterized in that the UPS system is used for respectively supplying power to a swapping system, a monitoring system, a fire fighting system and a lighting system, and the swapping system comprises swapping equipment;
the type selection method comprises the following steps:
the method comprises the steps of obtaining peak power of a power swapping station in a first state, a power factor of the power swapping device and a preset output power factor of a UPS host, and determining load demand power of the power swapping station according to the peak power, the power factor and the preset output power factor;
acquiring power-on starting power of a power conversion system of the power conversion station;
determining the model of the UPS host according to the load demand power and the power-on starting power;
acquiring power consumption information when the power switching station is powered off, wherein the power consumption information comprises the total power switching power consumption of a power switching system;
determining the type of the UPS battery according to the power consumption information;
and determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
2. The model selection method for the power swapping station UPS system of claim 1, wherein the determining the model of the UPS host according to the load demand power and the power-up start power comprises:
acquiring a preset coefficient;
determining the product of the preset coefficient and the power-on starting power;
determining a value range of the rated power of the UPS host machine according to the product and the load required power;
and determining the model of the UPS host according to the value range.
3. The model selection method for the power swapping station UPS system of claim 1, wherein the obtaining power consumption information of the swapping station comprises:
acquiring single power switching power consumption of the power switching system and the power switching times after power failure;
and determining the total power consumption of the battery swapping system according to the single battery swapping power consumption of the battery swapping system and the battery swapping times.
4. The model selection method for the power swapping station UPS system of claim 1, wherein the power consumption information further comprises standby power consumption of the swapping system, power consumption of the lighting system, power consumption of the monitoring system, power consumption of the fire protection system and power consumption of the transfer equipment.
5. The type selection method of the power conversion station UPS system of claim 4, wherein the power conversion system standby power consumption is power consumption when the power conversion system is in a standby state, the standby state is power failure of a motor type load of a charging bin and the power conversion bin, and the standby power consumption of the power conversion system comprises non-motor type power consumption of the charging bin.
6. The model selection method for the power swapping station UPS system of claim 4, wherein the lighting system power consumption comprises a first lighting power consumption of a first lighting circuit and a second lighting power consumption of a second lighting circuit, the first lighting circuit is used for providing lighting for the monitoring system, and the second lighting circuit is used for providing lighting for other devices in the power swapping station except the monitoring system in the power swapping period after power failure.
7. The model selection method for the power swapping station UPS system of claim 1, wherein the determining the model of the UPS battery according to the power consumption information comprises:
determining the dischargeable quantity of the UPS battery according to the power consumption information;
and determining the model of the UPS battery according to the dischargeable quantity.
8. A model selection apparatus for a powerstation UPS system, for performing the method of any of claims 1 to 7, the apparatus comprising:
the first acquisition module is used for acquiring the load demand power of the power swapping station;
the second acquisition module is used for acquiring the power-on starting power of a power exchanging system of the power exchanging station;
the first determining module is used for determining the model of the UPS host according to the load required power and the power-on starting power;
a third obtaining module, configured to obtain power consumption information of a power failure state of the power swapping station, where the power consumption information includes a total power swapping power consumption of a power swapping system;
the second determining module is used for determining the model of the UPS battery according to the power consumption information;
and the third determining module is used for determining the model of the UPS system according to the model of the UPS host and the model of the UPS battery.
9. A computer storage medium having stored therein at least one instruction or at least one program, the at least one instruction or at least one program being loaded and executed by a processor to implement the method of any one of claims 1 to 7.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202405859U (en) * 2011-11-29 2012-08-29 张鹏 Uninterruptible power supply system for server of converter station
CN104731049A (en) * 2015-01-09 2015-06-24 中国石油天然气股份有限公司 Skid-mounted integration method for power distribution, control and communication system of oil and gas field station
CN108808751A (en) * 2017-04-27 2018-11-13 奥动新能源汽车科技有限公司 A kind of electrical changing station power supply system and electrical changing station method of supplying power to
CN109916448A (en) * 2019-02-26 2019-06-21 广州供电局有限公司 Supply vehicle detection method, system, computer equipment and storage medium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259104A1 (en) * 2009-04-14 2010-10-14 Robert Winkelman Battery management system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202405859U (en) * 2011-11-29 2012-08-29 张鹏 Uninterruptible power supply system for server of converter station
CN104731049A (en) * 2015-01-09 2015-06-24 中国石油天然气股份有限公司 Skid-mounted integration method for power distribution, control and communication system of oil and gas field station
CN108808751A (en) * 2017-04-27 2018-11-13 奥动新能源汽车科技有限公司 A kind of electrical changing station power supply system and electrical changing station method of supplying power to
CN109916448A (en) * 2019-02-26 2019-06-21 广州供电局有限公司 Supply vehicle detection method, system, computer equipment and storage medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
信息机房建设中UPS电源系统的设计选型;万黎升 等;《江西电力》;20090331;第33卷;第15-17页 *

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