CN106953377B - Mobile energy storage for power supply system control method suitable for multiple access scene - Google Patents
Mobile energy storage for power supply system control method suitable for multiple access scene Download PDFInfo
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- 238000004146 energy storage Methods 0.000 title claims abstract description 195
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009826 distribution Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000011217 control strategy Methods 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 241001122767 Theaceae Species 0.000 description 3
- 239000013589 supplement Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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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
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of mobile energy storage for power supply system control methods suitable for multiple access scene, provide twin-stage type online mobile energy storage for power supply system, wherein ac-dc conversion part is made of two sets of PCS, and energy-storage system is connected with the DC side of ac-dc conversion part；System and the interface type of emergency service access include the tandem type interface under single power distribution network, parallel connection type interface and double distribution network interfaces, to institute's operating condition to be applied, mobile energy storage for power supply system access carries out mode setting: being divided into single distribution tandem type, single distribution parallel connection type, it is double to match net type, using different control methods.Movable energy storage system can be realized guarantor's electricity operation to important load in the case of the present invention realizes distinct interface, simultaneously using energy storage current electric quantity and grid side operating status as Consideration, charge and discharge control is optimized to the energy-storage units in system, increase and protects electricity operation duration, that improves movable energy storage system protects damage of the reduction to battery simultaneously of electric energy power, improves the service life of energy storage.
Description
Technical field
The present invention relates to mobile energy storage for power supply system regions, more particularly to a kind of mobile storage suitable for multiple access scene
It can power supply system control method.
Background technique
With increasing environmental pollution, the swift and violent growth of power demand, load peak-valley difference increase and individual demand increases,
Energy-saving and emission-reduction and power supply reliability are required to further increase, unexpected power-off will necessarily give normal life order and the society of people
Can normal operation damage, especially for load especially important in first order load, once interruption of power supply, it will cause
Great political impact or economic loss.In addition, low in some Urban Annual Electrical Power Consumption load factors, peak value electricity consumption has period or season
The area of property also needs mobile emergency supply vehicle.Such as Fujian Anxi annual spring, heat, Qiu Sanji all there is tea making electricity consumption
Rush Hour, tea making period network load surge, and peak load is 12 times usually, and regional area, local period is caused to occur
Low-voltage phenomenon.And in non-tea making season, electricity consumption is only general lighting electricity consumption, transformer almost idle running, power load rate
Low, rural power grids utilization rate of equipment and installations, power supply efficiency are low.Use mobile emergency supply vehicle as supplement of powering in similar area, it can be with
Electricity consumption peak value is effectively reduced, alleviate power grid pressure can reduce the design capacity of state curve road and distribution transforming simultaneously, improves rural power grids and sets
Standby utilization rate and power supply efficiency.Movable type power supply system mostly uses diesel-driven generator as backup power source at present, but diesel oil is sent out
Motor starting time is long to need 5~30s, and supply voltage, frequency fluctuation be big, low efficiency, can not accomplish seamless switching, and bavin hair
Using also inevitably environment and noise pollution will be brought.Therefore a kind of cleaning is needed, flexible, reliable power supply mode is realized
To the substitution of conventional fuel oil power generation, and effective supplement to power grid power supply reliability.Mobile energy storage power supply system environment friend
Good, mobility strong, integrated level height, is a kind of effective solution means.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of mobile energy storage for power supply system controls suitable for multiple access scene
Method, movable energy storage system can be realized guarantor's electricity operation to important load in the case of realizing distinct interface, while be worked as with energy storage
Preceding electricity and grid side operating status are Consideration, optimize charge and discharge control to the energy-storage units in system, increase and protect
Electricity operation duration improves protecting electric energy power while reducing the damage to battery for movable energy storage system, improves the service life of energy storage.
The present invention is realized using following scheme: a kind of mobile energy storage for power supply system controlling party suitable for multiple access scene
Method, comprising the following steps:
Step S1: the online mobile energy storage for power supply system of a twin-stage type is provided, wherein ac-dc conversion part is by two sets of PCS
It constituting, net side PCS exchange side is connected with power grid, and DC side is connected with energy-storage system, and load side PCS exchange side is connected with load,
DC side is connected with energy storage；Energy-storage system is connected with the DC side of ac-dc conversion part；The mobile energy storage for power supply system with
The interface type of emergency service access includes the tandem type interface under single power distribution network, and parallel connection type interface and double power distribution networks connect
Mouthful, to institute's operating condition to be applied, the mobile energy storage for power supply system access carries out mode setting: it is divided into single distribution tandem type, it is single
Distribution parallel connection type, it is double to match net type；
Step S2: if the mobile energy storage for power supply system is set as single distribution tandem type, the mobile energy storage for power supply system
Into mobile energy storage startup subroutine 1；
Step S3: judge system whether start completion, if so, disconnect switch QS1, the mobile energy storage for power supply system into
Enter to enter mobile energy storage and control subprogram 1, if it is not, then return step S2；
Step S4: if the mobile energy storage for power supply system is set as single distribution parallel connection type, closure switch QS1, the shifting
Dynamic energy storage for power supply system enters mobile energy storage startup subroutine 2；
Step S5: judge system whether start completion, the mobile energy storage for power supply system enters into mobile energy storage control
Subprogram 2, if it is not, then return step S4；
Step S6: if the mobile energy storage for power supply system is set as double distribution net type, closure switch QS1 and QS2 is described
Mobile energy storage for power supply system enters mobile energy storage startup subroutine 3；
Step S7: judge system whether start completion, the mobile energy storage for power supply system enters into mobile energy storage control
Subprogram 3, if it is not, then return step S6.
Further, under single power distribution network tandem type interface case, the mobile energy storage for power supply system network side interface with connect
Mouth cabinet distribution side interface is connected, and load side interface is connected with interface cabinet load side interface, disconnected after mobile energy storage for power supply system access
Switch QS1 is load power supply by movable energy storage system load-side PCS, and grid side PCS mends electricity to energy-storage system.
Further, the mobile energy storage startup subroutine 1 specifically: net side PCS first carries out grid-connected starting operation, starting
Start to standby afterload side PCS, the standby rear mobile energy storage startup subroutine 1 of two PCS terminates.
Further, it under single power distribution network parallel connection type interface case, is closed and opens after the mobile energy storage for power supply system access
QS1 is closed, mobile energy storage for power supply system comes into operation when detecting electric network fault, powers for load.
Further, the mobile energy storage controls subprogram 1 specifically: respectively using network voltage and energy storage SOC as x-axis, y
Axis carries out interval division, and each region is distinguished as follows:
Region 1: working as electric network fault, and battery SOC is relatively low, and input side and outlet side PCS carry out shutdown operation；
Region 2: when power grid is normal, battery SOC is relatively low, input side PCS carry out invariable power charge operation, outlet side PCS into
Row VF control；
Region 3: working as electric network fault, and energy-storage system works normally, and input side PCS is shut down as the spare of outlet side PCS, defeated
Side PCS carries out VF control out；
Region 4: when power grid is normal, battery SOC is higher, and input side PCS carries out the operation of constant voltage floating charge current limliting, outlet side PCS
Carry out VF control；
Region 5: when electric network fault and energy-storage system over-voltage fault, system-down operation, all breakers are disconnected；
Region 6: when power grid is normal, energy-storage system over-voltage fault, system-down is run.
Further, the mobile energy storage startup subroutine 2 specifically: load side PCS first first carries out grid-connected starting fortune
Row, starting to the standby rear mobile energy storage startup subroutine 2 terminate.
Further, control strategy of the movable energy storage system control subprogram 2 under different operating conditions is as follows:
Control strategy 1: if power grid breaks down, the energy content of battery is too low, and operation is shut down in mobile energy storage；
Control strategy 2: if power grid breaks down, load side PCS constant voltage constant frequency operation in mobile energy storage for power supply system；
Control strategy 3: if power grid is normal, energy-storage system electricity is relatively low, and load side PCS is carried out in mobile energy storage for power supply system
Invariable power charging carries out energy-storage system to mend electricity；
Control strategy 4: if power grid is normal, energy-storage system electricity is sufficient, and load side PCS is carried out in mobile energy storage for power supply system
Constant voltage floating charge control, maintains energy-storage system electricity.
Further, in double power distribution networks, the net side outlet of the mobile energy storage for power supply system and load side outlet
It is connected with the both ends of bus connection switch by switch QS1, QS2 respectively, when detecting ac bus 1 or the failure of ac bus 2
When the PCS that is connected with the port put into operation as load power supply, another PCS carries out energy-storage system to mend electricity.
Further, the movable energy storage system control control strategy under different operating conditions of subprogram 3 is as follows: when two distribution
Control strategy is identical as movable energy storage system control subprogram 2 when net is normal or equal failure；When two distribution sides can
It works normally, it is identical with the movable energy storage system to control subprogram 1 for control strategy when the failure of the other side.
Compared with prior art, the invention has the following advantages:
(1) it can be realized guarantor's electricity in the case of distinct interface to important load；
(2) time that system protects electricity operation can be effectively improved, the system of raising protects electric energy power；
(3) the optimization charge and discharge to energy storage are able to achieve, system service life is improved, reduce O&M cost.
Detailed description of the invention
Fig. 1 is multistage in-line formula movable energy storage system topology schematic diagram of the invention；
Fig. 2 is single power distribution network tandem type interface diagram of the invention；
Fig. 3 is single power distribution network parallel connection type interface diagram of the invention；
Fig. 4 is double distribution net type interface diagrams of the invention；
Fig. 5 is the movable energy storage system control flow schematic diagram suitable for multiple access scene of the invention；
Fig. 6 is 1 flow diagram of movable energy storage system startup subroutine of the invention；
Fig. 7 is that movable energy storage system operation interval of the invention divides schematic diagram；
Fig. 8 is movable energy storage system control 1 schematic diagram of subprogram of the invention；
Fig. 9 is mobile 2 flow diagram of energy storage startup subroutine of the invention；
Figure 10 is movable energy storage system control 2 flow diagram of subprogram of the invention；
Figure 11 is 3 control flow schematic diagram of control subprogram of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
The present embodiment provides a kind of mobile energy storage for power supply system control methods suitable for multiple access scene, are based on twin-stage type
Online movable energy storage system, system topological is as shown in Figure 1, wherein ac-dc conversion part is made of two sets of PCS, net side
PCS exchange side is connected with power grid, and DC side is connected with energy-storage system, and load side PCS exchange side is connected with load, DC side and storage
It can be connected；Energy-storage system is connected with the DC side of ac-dc conversion part.It is suitable for mobile energy storage vehicle important load at present and protects electricity
The tandem type interface under single power distribution network, parallel connection type interface and double power distribution networks can be divided into the interface type of emergency service access
Three kinds of interface, interface topology difference is as shown in Figure 2, Figure 3, Figure 4.The movable energy storage system under single power distribution network tandem type interface case
Net side interface is connected with interface cabinet distribution side interface, and load side interface is connected with interface cabinet load side interface, movable energy storage system
It is load power supply that switch QS1 is disconnected after access by movable energy storage system load-side PCS, and grid side PCS mends electricity to energy-storage system；It is single
Under power distribution network parallel connection type interface case, it is closed QS1 after movable energy storage system access, the mobile energy storage system when detecting electric network fault
System comes into operation, and powers for load；The net side outlet of movable energy storage system and load side outlet point under double power distribution network interface cases
Not Tong Guo switch QS1, QS2 be connected with the both ends of bus connection switch, when detecting that ac bus 1 or ac bus 2 break down
The PCS being connected with the port puts into operation to power for load, and another PCS carries out energy-storage system to mend electricity.
It mends in electric process according to the current SOC of energy-storage system to energy-storage system using different charge control strategies, subtracts simultaneously
Few damage of the charge and discharge to energy storage, improves system service life.
This method specifically includes following steps, as shown in Figure 5:
Step S1: the online mobile energy storage for power supply system of a twin-stage type is provided, wherein ac-dc conversion part is by two sets of PCS
It constituting, net side PCS exchange side is connected with power grid, and DC side is connected with energy-storage system, and load side PCS exchange side is connected with load,
DC side is connected with energy storage；Energy-storage system is connected with the DC side of ac-dc conversion part；The mobile energy storage for power supply system with
The interface type of emergency service access includes the tandem type interface under single power distribution network, and parallel connection type interface and double power distribution networks connect
Mouthful, to institute's operating condition to be applied, the mobile energy storage for power supply system access carries out mode setting: it is divided into single distribution tandem type, it is single
Distribution parallel connection type, it is double to match net type；
Step S2: if the mobile energy storage for power supply system is set as single distribution tandem type, the mobile energy storage for power supply system
Into mobile energy storage startup subroutine 1；
Step S3: judge system whether start completion, if so, disconnect switch QS1, the mobile energy storage for power supply system into
Enter to enter mobile energy storage and control subprogram 1, if it is not, then return step S2；
Step S4: if the mobile energy storage for power supply system is set as single distribution parallel connection type, closure switch QS1, the shifting
Dynamic energy storage for power supply system enters mobile energy storage startup subroutine 2；
Step S5: judge system whether start completion, the mobile energy storage for power supply system enters into mobile energy storage control
Subprogram 2, if it is not, then return step S4；
Step S6: if the mobile energy storage for power supply system is set as double distribution net type, closure switch QS1 and QS2 is described
Mobile energy storage for power supply system enters mobile energy storage startup subroutine 3；
Step S7: judge system whether start completion, the mobile energy storage for power supply system enters into mobile energy storage control
Subprogram 3, if it is not, then return step S6.
In the present embodiment, under single power distribution network tandem type interface case, the mobile energy storage for power supply system network side interface
It is connected with interface cabinet distribution side interface, load side interface is connected with interface cabinet load side interface, mobile energy storage for power supply system access
It is load power supply that switch QS1 is disconnected afterwards by movable energy storage system load-side PCS, and grid side PCS mends electricity to energy-storage system.
In the present embodiment, the mobile energy storage startup subroutine 1 specifically: net side PCS first carries out grid-connected starting operation,
Starting starts to standby afterload side PCS, and the standby rear mobile energy storage startup subroutine 1 of two PCS terminates, control stream
Journey is as shown in Figure 6.
In the present embodiment, it under single power distribution network parallel connection type interface case, is closed after the mobile energy storage for power supply system access
Combination switch QS1, when detecting electric network fault, mobile energy storage for power supply system comes into operation, and powers for load.
In the present embodiment, the mobile energy storage controls subprogram 1 specifically: is respectively x with network voltage and energy storage SOC
Axis, y-axis carry out interval division, as shown in fig. 7, system control process is as shown in figure 8, the differentiation of each region is as follows:
Region 1: working as electric network fault, and battery SOC is relatively low, and input side and outlet side PCS carry out shutdown operation；
Region 2: when power grid is normal, battery SOC is relatively low, input side PCS carry out invariable power charge operation, outlet side PCS into
Row VF control；
Region 3: working as electric network fault, and energy-storage system works normally, and input side PCS is shut down as the spare of outlet side PCS, defeated
Side PCS carries out VF control out；
Region 4: when power grid is normal, battery SOC is higher, and input side PCS carries out the operation of constant voltage floating charge current limliting, outlet side PCS
Carry out VF control；
Region 5: when electric network fault and energy-storage system over-voltage fault, system-down operation, all breakers are disconnected；
Region 6: when power grid is normal, energy-storage system over-voltage fault, system-down is run.
In the present embodiment, the mobile energy storage startup subroutine 2 specifically: load side PCS first carries out grid-connected open first
Dynamic operation, starting to the standby rear mobile energy storage startup subroutine 2 terminate, and control flow is as shown in Figure 9.
In the present embodiment, control strategy of the movable energy storage system control subprogram 2 under different operating conditions is as follows,
Control flow is as shown in Figure 10:
Control strategy 1: if power grid breaks down, the energy content of battery is too low, and operation is shut down in mobile energy storage；
Control strategy 2: if power grid breaks down, load side PCS constant voltage constant frequency operation in mobile energy storage for power supply system；
Control strategy 3: if power grid is normal, energy-storage system electricity is relatively low, and load side PCS is carried out in mobile energy storage for power supply system
Invariable power charging carries out energy-storage system to mend electricity；
Control strategy 4: if power grid is normal, energy-storage system electricity is sufficient, and load side PCS is carried out in mobile energy storage for power supply system
Constant voltage floating charge control, maintains energy-storage system electricity.
In the present embodiment, the movable energy storage system control control strategy under different operating conditions of subprogram 3 is as follows, control
Process processed is as shown in figure 11: when two power distribution networks are normal or equal failure, control strategy and the movable energy storage system control sub- journey
Sequence 2 is identical；When two distribution sides can work normally, control strategy and the movable energy storage system control when failure of the other side
Program 1 is identical.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (4)
1. a kind of mobile energy storage for power supply system control method suitable for multiple access scene, it is characterised in that: the following steps are included:
Step S1: the online mobile energy storage for power supply system of a twin-stage type is provided, wherein ac-dc conversion part is by two sets of PCS structures
At net side PCS exchange side is connected with power grid, and DC side is connected with energy-storage system, and load side PCS exchange side is connected with load, directly
Stream side is connected with energy storage；Energy-storage system is connected with the DC side of ac-dc conversion part；The mobile energy storage for power supply system with answer
The anxious interface type for Gong being electrically accessed includes the tandem type interface under single power distribution network, parallel connection type interface and double distribution network interfaces,
To institute's operating condition to be applied, the mobile energy storage for power supply system access carries out mode setting: being divided into single distribution tandem type, single distribution
Parallel connection type, it is double to match net type；
Step S2: if the mobile energy storage for power supply system is set as single distribution tandem type, the mobile energy storage for power supply system enters
Mobile energy storage startup subroutine 1；
Step S3: judge system whether start completion, if so, disconnecting switch QS1, the mobile energy storage for power supply system enters shifting
Dynamic energy storage controls subprogram 1, if it is not, then return step S2；
Step S4: if the mobile energy storage for power supply system is set as single distribution parallel connection type, closure switch QS1, the mobile storage
Energy power supply system enters mobile energy storage startup subroutine 2；
Step S5: judge system whether start completion, the mobile energy storage for power supply system enters mobile energy storage control subprogram 2,
If it is not, then return step S4；
Step S6: if the mobile energy storage for power supply system is set as double distribution net type, closure switch QS1 and QS2, the movement
Energy storage for power supply system enters mobile energy storage startup subroutine 3；
Step S7: judge system whether start completion, the mobile energy storage for power supply system enters mobile energy storage control subprogram 3,
If it is not, then return step S6；
Wherein, the mobile energy storage startup subroutine 1 specifically: net side PCS first carries out grid-connected starting operation, and starting is to after standby
Load side PCS starting, the standby rear mobile energy storage startup subroutine 1 of two PCS terminate；
Wherein, the mobile energy storage controls subprogram 1 specifically: respectively using network voltage and energy storage SOC as x-axis, y-axis carries out area
Between divide, each region is distinguished as follows:
Region 1: working as electric network fault, and battery SOC is relatively low, and input side and outlet side PCS carry out shutdown operation；
Region 2: when power grid is normal, battery SOC is relatively low, and input side PCS carries out invariable power charge operation, and outlet side PCS carries out VF
Control；
Region 3: working as electric network fault, and energy-storage system works normally, and input side PCS shuts down spare, the outlet side as outlet side PCS
PCS carries out VF control；
Region 4: when power grid is normal, battery SOC is higher, and input side PCS carries out the operation of constant voltage floating charge current limliting, and outlet side PCS is carried out
VF control；
Region 5: when electric network fault and energy-storage system over-voltage fault, system-down operation, all breakers are disconnected；
Region 6: when power grid is normal, energy-storage system over-voltage fault, system-down is run；
Wherein, the mobile energy storage startup subroutine 2 specifically: load side PCS first first carries out grid-connected starting operation, and starting is extremely
The mobile energy storage startup subroutine 2 terminates after standby；
Wherein, control strategy of the mobile energy storage control subprogram 2 under different operating conditions is as follows:
Control strategy 1: if power grid breaks down, the energy content of battery is too low, and operation is shut down in mobile energy storage；
Control strategy 2: if power grid breaks down, load side PCS constant voltage constant frequency operation in mobile energy storage for power supply system；
Control strategy 3: if power grid is normal, energy-storage system electricity is relatively low, and load side PCS carries out permanent function in mobile energy storage for power supply system
Rate charging carries out energy-storage system to mend electricity；
Control strategy 4: if power grid is normal, energy-storage system electricity is sufficient, and load side PCS carries out constant pressure in mobile energy storage for power supply system
Floating charge control, maintains energy-storage system electricity；
Wherein, the mobile energy storage control control strategy under different operating conditions of subprogram 3 is as follows: when two power distribution networks are normal or equal
Control strategy is identical as the mobile energy storage control subprogram 2 when failure；When two distribution sides can work normally, the other side is former
Control strategy is identical as the mobile energy storage control subprogram 1 when barrier.
2. a kind of mobile energy storage for power supply system control method suitable for multiple access scene according to claim 1, special
Sign is: under single power distribution network tandem type interface case, the mobile energy storage for power supply system network side interface and interface cabinet match net side
Interface is connected, and load side interface and interface cabinet load side interface is connected, after movement energy storage for power supply system access disconnection switch QS1 by
Movable energy storage system load-side PCS is load power supply, and grid side PCS mends electricity to energy-storage system.
3. a kind of mobile energy storage for power supply system control method suitable for multiple access scene according to claim 1, special
Sign is: under single power distribution network parallel connection type interface case, closure switch QS1 after the mobile energy storage for power supply system access works as inspection
Mobile energy storage for power supply system comes into operation when measuring electric network fault, powers for load.
4. a kind of mobile energy storage for power supply system control method suitable for multiple access scene according to claim 1, special
Sign is: in double power distribution networks, the net side outlet of the mobile energy storage for power supply system and load side outlet pass through out respectively
Close QS1, QS2 be connected with the both ends of bus connection switch, when detect ac bus 1 or ac bus 2 failure when with port phase
PCS even puts into operation to power for load, and another PCS carries out energy-storage system to mend electricity.
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| CN109995064B (en) * | 2019-04-12 | 2024-05-24 | 湖南富能宝储能科技有限公司 | Mobile energy storage cluster power supply system |
| CN110401213A (en) * | 2019-06-26 | 2019-11-01 | 中国电力科学研究院有限公司 | A kind of multi-mode movable energy storage system and its control method |
| CN115693743A (en) * | 2020-02-27 | 2023-02-03 | 华为数字能源技术有限公司 | Power supply device, power supply system and data center |
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| JP2017011988A (en) * | 2015-06-16 | 2017-01-12 | 住友電気工業株式会社 | Power management device, power generation control device, display device, power management method, power generation control method, display control method, power management program, power generation control program, and display control program |
| CN105656067B (en) * | 2016-03-23 | 2020-10-13 | 中国电力科学研究院 | Multistage online mobile energy storage power supply system and control method thereof |
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2017
- 2017-02-27 CN CN201710106982.6A patent/CN106953377B/en active Active
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