CN110535226A - A kind of power echelon ferric phosphate lithium cell backup power supply system - Google Patents
A kind of power echelon ferric phosphate lithium cell backup power supply system Download PDFInfo
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- CN110535226A CN110535226A CN201910707681.8A CN201910707681A CN110535226A CN 110535226 A CN110535226 A CN 110535226A CN 201910707681 A CN201910707681 A CN 201910707681A CN 110535226 A CN110535226 A CN 110535226A
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- echelon
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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
- H02J9/061—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 DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to ferric phosphate lithium cell backup power supply system technical fields, and disclose a kind of power echelon ferric phosphate lithium cell backup power supply system, the AC power source of distribution system is converted to by rectification module the direct current of suitable echelon lithium iron phosphate battery system charging, under normal circumstances, power supply system is control signal, power-equipment or communication equipment power supply, is charged a battery simultaneously；When mains ac power supply have a power failure after, DC power-supply system can off-grid operation, so that substation is still in controllable state.The present invention passes through the design of modularization, high reliability, high economy, can be widely applied in transformer station direct current system and communication base station backup power supply system, while can be applied to low-speed electronic vehicle, fork truck, electric tool, the fields such as compact electric apparatus, mobile power source and military affairs.
Description
Technical field
The present invention relates to ferric phosphate lithium cell backup power supply system technical field, specially a kind of power echelon ferric phosphate lithium cell
Backup power supply system.
Background technique
Fourth quarter in 2019, China's new-energy automobile power battery initially enter the intensive date of retirement, for thoroughly solution
Certainly the leftover problem of the retired power battery of new-energy automobile, Ministry of Industry and Information issued several directive documents in 2018, it is intended to try
Point pushes new-energy automobile power battery echelon to utilize work.
Power battery echelon solves the requirement of the retired power battery leftover problem of new-energy automobile using country is met, and pushes
New-energy automobile power battery echelon utilizes work, realizes the monitoring managements of the enterprises to echelon battery such as steel tower, power grid；It avoids making
At market confusion, lead to more serious environmental protection；It can provide related job simultaneously.
Chinese steel tower power battery cascade utilization pilot run nearly 2 years, step battery operation in order, by mesh
Before, Chinese steel tower echelon utilizes based on the echelon battery product recombinated with Battery Plant, adds up to amount to 800MWh using echelon battery,
It is 10,000 tons total, it is roughly equal to 300,000 groups, is used for 50,000 base stations, each province's administration request accelerates the 5th third-generation mobile communication (5G) network at present
Development, steel tower company is estimated for consumption echelon battery types and total amount to be will increase dramatically.
There are replacement plan, former plumbic acid electricity in Jiangsu Power Grid company to 220 kv substation direct current system batteries in Jiangsu Province
Pond is replaced using echelon ferric phosphate lithium cell, other national grid company later periods can also have same demand.
As new-energy automobile power battery is largely concentrated retired, echelon battery price will be at least with annual 30% speed
Decline, in terms of Life cycle, cost performance has been much higher than lead-acid battery；Echelon ferric phosphate lithium cell has high-energy close
The advantages that degree, long-life, high-multiplying power discharge, high security, can mention as the core of transformer station direct current system backup power source
The economy and reliability of high power station operation have more important meaning to the development of intelligent power network.
Summary of the invention
The present invention provides a kind of power echelon ferric phosphate lithium cell backup power supply system, have power distribution system through rectification module
The AC power source of system is converted into the direct current of suitable echelon lithium iron phosphate battery system charging, under normal circumstances, power supply system
For control signal, power-equipment or communication equipment power supply, charge a battery simultaneously；After mains ac power supply has a power failure, direct current
Power supply system can off-grid operation, the advantages of making substation be still in controllable state, solving backup power source in the prior art makes
With the service life it is not long a series of problems, such as.
The invention provides the following technical scheme: a kind of power echelon ferric phosphate lithium cell backup power supply system, a kind of power echelon
Ferric phosphate lithium cell backup power supply system, including echelon lithium battery group, echelon lithium battery control system, rectifier, apparatus for fast switching
Deng, the echelon lithium battery control system is connect with echelon lithium battery group, the echelon lithium battery control system respectively at it is fast
Speed switching device, rectifier connection, the rectifier are connect with ac bus, and the apparatus for fast switching is respectively at female with direct current
Line, rectifier connection；The echelon lithium battery control system include master control BMS module, secondary control BMS module, from control BMS module with
And PCS module, the PCS module are connect with echelon lithium battery group, the master control BMS module is connect with pair control BMS module, described
Pair control BMS module is connect with from control BMS module, described to connect from control BMS module with echelon lithium battery group.
Preferably, master control, pair are controlled, realize that function is as follows from control BMS module:
(1) has the function of System self-test；
(2) there is overcharge, overdischarge, overvoltage, excess temperature, overcurrent protection alarm function；
(3) has the function of high voltage power bus precharge；
(4) has the function of the measurement such as cell system voltage, electric current, inlet and outlet temperature, battery core voltage, battery core temperature；
(5) there is the accurate estimation function of battery system SOC；
(6) there is battery core equalization function；
(7) have the function of battery system heat management, make battery work within the scope of appropriate temperature, reduce each battery module it
Between the temperature difference；
(8) there is high-voltage electricity management function, three cluster batteries are respectively provided with independent high-voltage relay, realize independent trip charge and discharge
Circuit control；
(9) have and monitor communication function on direct current cabinet.
(10) it is able to achieve powering on, charge, discharging, powering off control and the control of battery group hot-cool environment for battery pack
Preferably, a kind of power echelon ferric phosphate lithium cell backup power supply system, comprising the following steps:
Step 1, using two sets of echelon ferric phosphate lithium cell power supply systems, every set system is made of 4 groups of rectifiers, and two of them are whole
Direct current is directly fed back to feeder line screen by stream device, and electric energy is transported to ferric phosphate lithium cell group by other two rectifier；
Step 2, using switch is switched fast, it is divided into and charges normal, constant voltage and current limiting mode charge operation, control cutting, electric discharge fortune
The operational modes such as row；
Step 3, it is different from rectification module power directly to power lead using two sets, powers normal situation in electricity consumption of standing
Under, power supply and charging system separate；
Step 4, using configuration segmentation power lead, under normal circumstances, sectionalized busbar can separating brake work, only in the feelings of emergency
Lock work can be closed under condition；
Step 5, using echelon ferric phosphate lithium cell group charge and discharge strategy is directed to, battery pack charging modes are intermittent charging side
Formula；
Step 6, it is designed using echelon lithium iron phosphate battery moduleization, gone here and there using basic unit and connects the production of composition standard
Product, while various product can be formed by duplication basic unit and can be applied to different scenes.
Preferably, the rectifier, echelon lithium battery group, protective breaker, apparatus for fast switching etc. are all made of high-voltage electricity
Line connection, and multiple rectifiers are all made of and are connected in parallel, multiple rectifiers are equipped with control switch.
Preferably, it is described from control and secondary control using being connected in parallel, it is multiple described in from control be equipped with independent control switch.
Preferably, battery charging limitation its maximum pressure range of voltage is 95%SOC.
The present invention have it is following the utility model has the advantages that
1, the present invention be directed to echelon ferric phosphate lithium cell direct current systems, compared with lead-acid battery in memory effect, heat-resisting quantity, energy
Density, high rate during charging-discharging, cycle life, charge and discharge photoelectric transformation efficiency, volume and weight etc. have apparent advantage.
2, the present invention has the characteristics that modularized design, integrated design in system aspects, is filling compared with Acid Battery System
Electric discharge strategy, with the centralized management of electrically optimized, battery, be switched fast and power supply reliability in terms of have apparent innovation, system can
By property aspect advantage with higher.
3, present invention process process is usually directly transformed on the basis of retired power battery, does not disassemble battery pack, with one
The battery of vehicle is normal cell cluster, constructs basic secondary battery unit, is integrated as far as possible using original BMS, be conducive to battery
The simple modular that group echelon utilizes.
4, expense of present invention in terms of buying cost, capital construction cost, operation maintenance cost and discarded cost recovery
It is lower, the lead-acid battery in transformer station direct current system, echelon ferric phosphate lithium cell direct current system are widely used in compared to tradition
The advantage with higher in terms of economy.
5, the present invention is the application for carrying out echelon ferric phosphate lithium cell in transformer station direct current system, is to ensure electric system
The key technology research of secondary power supply reliability has more important meaning to the development of intelligent power network.
6, when DC current stops working or exceeds bearing load, echelon ferric phosphate lithium cell can open the present invention certainly,
Power supply to ensure distribution system is normal, effectively prevents since distribution system is beyond load, some areas is caused to have a power failure
The problem of problem, while also preventing overhauling in direct current or when failure, distribution system stops working.
7, the present invention is using the ferric phosphate lithium cell of retired power battery transformation, and wherein lithium material is without any venomous injurant
Matter thinks environmentally protective battery by the world, and no matter pollution-free in improved use the battery is, and ferric phosphate lithium cell
The safety lead-acid battery that compares is stronger.
Detailed description of the invention
Fig. 1 is power echelon ferric phosphate lithium cell backup power supply system structural schematic diagram；
Fig. 2 is power echelon lithium iron phosphate battery module networked control systems structural schematic diagram；
Fig. 3 is power echelon ferric phosphate lithium cell group charge and discharge strategy schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, a kind of power echelon ferric phosphate lithium cell backup power supply system, as shown in Figure 1, 2, including echelon lithium is electric
Pond group, echelon lithium battery control system, rectifier, apparatus for fast switching etc., the echelon lithium battery control system and echelon lithium
Battery pack connection, the echelon lithium battery control system connect respectively at apparatus for fast switching, rectifier, the rectifier and
Ac bus connection, the apparatus for fast switching are connect respectively at DC bus, rectifier；Echelon lithium battery control system
System includes master control BMS module, secondary control BMS module, from control BMS module and PCS module, the PCS module and echelon lithium battery
Group connection, the master control BMS module are connect with pair control BMS module, and the secondary control BMS module is connect with from control BMS module, described
It is connect from control BMS module with echelon lithium battery group.
1, as shown in Figure 1, power echelon ferric phosphate lithium cell backup power supply system is controlled by echelon lithium battery group, echelon lithium battery
System, rectifier, apparatus for fast switching etc. composition, mainly by the scheme mode of connection, be switched fast switch, match it is electrically optimized, can
The control to power echelon ferric phosphate lithium cell backup power supply system is realized by power supply；
The mode of connection: using two sets of ferric phosphate lithium cell power supply systems, and every set system is made of 4 groups of rectifiers, and two of them are whole
Direct current is directly fed back to feeder line screen by stream device, and electric energy is transported to ferric phosphate lithium cell group by other two rectifier, this mode can
Effectively power lead and charging bus are separated, using switch is switched fast between ferric phosphate lithium cell group and feed, work as station
It when interior alternating current power loss, is switched fast and closes the switch, the use of ferric phosphate lithium cell is power lead power supply, the secondary electricity of protection power station
The power supply in source；
It is switched fast switch: when charging normal, rectifying out ferric phosphate lithium cell charging for two rectification modules of lithium battery charging
Required constant voltage, can when ferric phosphate lithium cell charges to a certain constant voltage with constant voltage and current limiting mode charge operation
Using the charging of control system cutting LiFePO4, ferric phosphate lithium cell is in static condition, avoids ferric phosphate lithium cell not
The defect of the long-term floating charge of energy；
With electrically optimized: when substation station alternating current power loss, the switch that is switched fast of ferric phosphate lithium cell comes into operation, by phosphorus
Sour lithium iron battery provides electric energy support for feedback Folding-Screen bus, ensures power and controls the reliable power supply of power supply；Ferric phosphate lithium cell
Charging is different from the rectification module powered directly to power lead using two sets, powers in normal situation in station electricity consumption, power supply
It is separated with charging system, so that ferric phosphate lithium cell is protected well, double rectification modules of power lead and power supply buses
Configuration meets the spare principle of " 1+1 "；
Reliable power supply: system configuration segmentation power lead, under normal circumstances, sectionalized busbar can separating brake work, only meeting an urgent need
In the case where can close lock work, DC power-supply system entire in this way, which is equivalent to, has 4 power inputs, 2 exchange directly conversion
Direct current, 2 LiFePO4 energy-storage batteries turn direct current supply, further enhance the power supply reliability and continuity of system.
2, it as shown in Fig. 2, being designed using echelon lithium iron phosphate battery moduleization, is gone here and there and is connected using basic unit
Standardized product is formed, the ferric phosphate lithium cell being transformed using retired power battery, wherein lithium material is without any poisonous and harmful substance,
Environmentally protective battery is thought by the world, no matter pollution-free in improved use the battery is, and the peace of ferric phosphate lithium cell
The full property lead-acid battery that compares is stronger, echelon ferric phosphate lithium cell direct current system, compared with lead-acid battery in memory effect, high temperature resistant
Property, energy density, high rate during charging-discharging, cycle life, charge and discharge photoelectric transformation efficiency, volume and weight etc. have it is obvious
Advantage；
The present invention uses 110V-330Ah echelon ferric phosphate lithium cell group, this battery pack is composed in parallel by the battery pack of 3 groups of 110Ah
, every group of battery is composed in series by the single battery of 35 nominal voltage 3.2V/110Ah, and battery pack nominal voltage is 110V, institute
It states rectifier, echelon lithium battery group, protective breaker, apparatus for fast switching etc. and is all made of high-tension bus-bar connection, and multiple rectifications
Device, which is all made of, to be connected in parallel, and multiple rectifiers are equipped with control switch；
Three piece of 36 string from control BMS, be connected respectively to the secondary control BMS of each branch；Pair control BMS is responsible for controlling the pre- of each branch
It fills, the opening and closing of relay；The data that master control BMS is responsible for collecting secondary control BMS are communicated with EMS, and not responsible control needs to configure simultaneously
Three low power relays, three low power preliminary filling resistance, each branch voltage, electric current can be controlled accurately；
By the single battery of nominal voltage 3.2V/110Ah with other string number series connection, the nominal voltage of different voltages grade is obtained,
Master control, secondary control are not necessarily to change from the framework of control BMS, and such standard modular product can be optionally combined, described to adopt from control and pair control
It is multiple described to be equipped with independent control switch from control with being connected in parallel.
3, as shown in figure 3, using echelon ferric phosphate lithium cell group charge and discharge strategy is directed to, battery pack charging modes are interval
Formula charging modes, the charge and discharge system are divided into five stages；
(1) constant current-pressure limiting charging stage (T1): charging current is kept constant in this stage, and voltage is stepped up, when battery highest
After voltage or battery pack end voltage are greater than or equal to defined voltage value, terminate the charging of this stage；
(2) constant pressure-current-limiting charge stage (T2): maximum charging current limit value is allowing to work as electricity within charging current in this stage
After pond ceiling voltage is equal to setting value, charging current reduces automatically, stops charging after charging current drops to specified value；
(3) battery open circuit stands stage (T3): after battery pack completes entire constant current-pressure limiting, constant pressure-current-limiting charge process, electricity
Pond group enters charge circuit open circuit static condition by BMS control, as shown below, monitors power-supply system DC output end electricity at any time
Pressure, it is ensured that discharge loop connection, if AC outage, it is non-delay into discharge condition that BMS should be able to control battery pack；
(4) intermittent benefit charging stage (T4): battery pack charge circuit is in open circuit static condition, until capacity is reduced to battery
When the 95%SOC of group charging limit value voltage initial capacity, supplement electricity condition is reentered by BMS control battery pack, battery group is filled
Electricity limitation its maximum pressure range of voltage is 95%SOC, mends charging modes and also undergoes two ranks of constant current-pressure limiting and constant pressure-current limliting
Section；
(5) battery power discharge stage (T5): battery pack provides energy according to loading condition, when battery minimum voltage or battery pack electricity
When pressure reaches final voltage, stop electric discharge.
Under normal circumstances, power supply system is control signal, moves power echelon ferric phosphate lithium cell backup power supply system of the present invention
Power equipment or communication equipment power supply, charge a battery simultaneously；After mains ac power supply has a power failure, DC power-supply system can off-network
Operation, makes substation be still in controllable state；
When DC current stops working or exceeds bearing load, echelon ferric phosphate lithium cell can open certainly, to ensure power distribution system
The power supply of system is normal, effectively prevents the problem of being exceeded load due to distribution system, some areas is caused to have a power failure, while also preventing
Stop in direct current maintenance or when failure, the problem of distribution system stops working；
Process flow is usually directly transformed on the basis of retired power battery, and battery pack is not disassembled, and the battery with a vehicle is
Normal cell cluster constructs basic secondary battery unit, is integrated as far as possible using original BMS, is conducive to what battery pack echelon utilized
Simple modular, expense in terms of buying cost, capital construction cost, operation maintenance cost and discarded cost recovery are lower.
It is widely used in the lead-acid battery in transformer station direct current system compared to tradition, echelon ferric phosphate lithium cell direct current system is in economy
Property aspect advantage with higher.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of power echelon ferric phosphate lithium cell backup power supply system, including it is echelon lithium battery group, echelon lithium battery control system, whole
Flow device, apparatus for fast switching etc., it is characterised in that: the echelon lithium battery control system is connect with echelon lithium battery group, described
Echelon lithium battery control system is connect respectively at apparatus for fast switching, rectifier, and the rectifier is connect with ac bus, institute
Apparatus for fast switching is stated to connect respectively at DC bus, rectifier；The echelon lithium battery control system includes master control BMS mould
Block, secondary control BMS module are connect from control BMS module and PCS module, the PCS module with echelon lithium battery group, the master control
BMS module is connect with pair control BMS module, and the secondary control BMS module is connect with from control BMS module, described from control BMS module and ladder
Secondary lithium battery group connection.
2. a kind of power echelon ferric phosphate lithium cell backup power supply system according to claim 1, it is characterised in that: include master
Control, secondary control, from the framework of control BMS module；
(1) has the function of System self-test；
(2) there is overcharge, overdischarge, overvoltage, excess temperature, overcurrent protection alarm function；
(3) has the function of high voltage power bus precharge；
(4) has the function of the measurement such as cell system voltage, electric current, inlet and outlet temperature, battery core voltage, battery core temperature；
(5) there is the accurate estimation function of battery system SOC；
(6) there is battery core equalization function；
(7) have the function of battery system heat management, make battery work within the scope of appropriate temperature, reduce each battery module it
Between the temperature difference；
(8) there is high-voltage electricity management function, three cluster batteries are respectively provided with independent high-voltage relay, realize independent trip charge and discharge
Circuit control；
(9) have and monitor communication function on direct current cabinet；
(10) it is able to achieve powering on, charge, discharging, powering off control and the control of battery group hot-cool environment for battery pack.
3. a kind of power echelon ferric phosphate lithium cell backup power supply system according to claims 1 and 2, it is characterised in that: including
Following steps:
Step 1, using two sets of echelon ferric phosphate lithium cell power supply systems, every set system is made of 4 groups of rectifiers, and two of them are whole
Direct current is directly fed back to feeder line screen by stream device, and electric energy is transported to ferric phosphate lithium cell group by other two rectifier；
Step 2, using switch is switched fast, it is divided into and charges normal, constant voltage and current limiting mode charge operation, control cutting, electric discharge fortune
The operational modes such as row；
Step 3, it is different from rectification module power directly to power lead using two sets, powers normal situation in electricity consumption of standing
Under, power supply and charging system separate；
Step 4, using configuration segmentation power lead, under normal circumstances, sectionalized busbar can separating brake work, only in the feelings of emergency
Lock work can be closed under condition；
Step 5, using echelon ferric phosphate lithium cell group charge and discharge strategy is directed to, battery pack charging modes are intermittent charging side
Formula；
Step 6, it is designed using echelon lithium iron phosphate battery moduleization, gone here and there using basic unit and connects the production of composition standard
Product, while various product is formed by duplication basic unit and can be applied to different scenes.
4. a kind of power echelon ferric phosphate lithium cell backup power supply system according to claim 1, it is characterised in that: the rectification
Device, echelon lithium battery group, protective breaker, apparatus for fast switching etc. are all made of high-tension bus-bar connection, and multiple rectifiers are adopted
With being connected in parallel, multiple rectifiers are equipped with control switch.
5. a kind of power echelon ferric phosphate lithium cell backup power supply system according to claim 1, it is characterised in that: described from control
It is multiple described to be equipped with independent control switch from control with pair control using being connected in parallel.
6. a kind of power echelon ferric phosphate lithium cell backup power supply system according to claim 1, it is characterised in that: the electric power storage
Group charging limitation its maximum pressure range of voltage in pond is 95%SOC.
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| CN201910707681.8A CN110535226A (en) | 2019-08-01 | 2019-08-01 | A kind of power echelon ferric phosphate lithium cell backup power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086955A (en) * | 2020-07-27 | 2020-12-15 | 国网综合能源服务集团有限公司 | Multi-battery mutual backup direct current system for transformer substation and automatic control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078532A (en) * | 2014-10-21 | 2017-08-18 | 东芝三菱电机产业系统株式会社 | Battery system |
-
2019
- 2019-08-01 CN CN201910707681.8A patent/CN110535226A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078532A (en) * | 2014-10-21 | 2017-08-18 | 东芝三菱电机产业系统株式会社 | Battery system |
Non-Patent Citations (1)
| Title |
|---|
| 花盛等: "基于锂电池组的变电站直流系统接线方式及其运行", 《江苏电机工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086955A (en) * | 2020-07-27 | 2020-12-15 | 国网综合能源服务集团有限公司 | Multi-battery mutual backup direct current system for transformer substation and automatic control method thereof |
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