CN104393611A - Energy storage battery management system and bidirectional DCDC converter synchronization management method and device thereof - Google Patents
Energy storage battery management system and bidirectional DCDC converter synchronization management method and device thereof Download PDFInfo
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- CN104393611A CN104393611A CN201410593409.9A CN201410593409A CN104393611A CN 104393611 A CN104393611 A CN 104393611A CN 201410593409 A CN201410593409 A CN 201410593409A CN 104393611 A CN104393611 A CN 104393611A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
Abstract
The invention discloses an energy storage battery management system and a bidirectional DCDC converter synchronization management method and a device thereof. The method comprises the steps that a measuring reference is set; the working condition of an electric drive system is judged; if the working condition is a dynamic working condition, a bidirectional DCDC converter transmits a synchronization signal to the energy storage battery management system; and synchronization connection of the bidirectional DCDC converter and the energy storage battery management system is established, and parameters of a current energy storage battery are acquired for the next step of computation. According to the method, the parameter variation of the bidirectional DCDC converter is compared with the measuring reference to confirm the working condition of the electric drive system so that timeliness is better; besides, a synchronization working mode of the energy storage battery management system and the bidirectional DCDC converter is established, change of the working condition of the energy storage battery can be tracked in real time by the energy storage battery management system and the detection and management strategy of the energy storage battery management system can be adjusted so that the energy state and the power state of the system can be accurately provided, the service life of the battery system can be prolonged and reliability of the battery system can be enhanced.
Description
Technical field
The present invention relates to the system, particularly a kind of energy storage battery management system and bidirectional DC/DC converter synchronization management method and device that manage energy-storage battery.
Background technology
In the large-scale energy-storage system such as intelligent grid and microgrid and the application of distributed energy storage system, the connected mode of a kind of DC bus of normal employing, this connected mode is that energy-storage battery module is by a kind of bidirectional DC/DC converter (Bi-directional DC/DC Converter, two-way DC-DC converter) access DC bus, when needing received energy, electrical network is charged to energy-storage battery by DC bus; When needing to grid transmission, energy-storage battery is generated electricity to DC bus by bidirectional DC/DC converter, and by inversion system to grid power transmission.Tradition energy storage battery management system can real-time monitoring battery state, makes assessment, assessment result is directly sent to energy management module or load unit to battery status.Energy storage battery management system is relatively independent system, energy storage battery management system is only had to send and to the Energy Transfer of bidirectional DC/DC converter to the information of energy management module or load unit, this is a kind of unidirectional information delivery format, bring following two limitations: 1) because energy storage battery management system cannot the change of perception operating mode, belong to a kind of Blind Test mode, cannot judge to detect data age, be more assess battery static characteristic, real-time is poor; 2) assessment by battery performance and state limits, the battery status dynamic characteristic information that energy management module obtains is restricted, thus bidirectional DC/DC converter, motor, inverter even load cannot accurately control, affect the efficiency of whole system, accurately cannot provide energy state and the power rating of system, the life and reliability of battery system is also affected simultaneously.
Summary of the invention
The present invention provides a kind of energy storage battery management system and bidirectional DC/DC converter synchronization management method and device for solving the problem, realize synchronousing working of bidirectional DC/DC converter and energy storage battery management system, overcoming between bidirectional DC/DC converter and energy storage management system is defect that unidirectional information transmission brings.
The present invention for the adopted technical scheme that solves the problem is: energy storage battery management system and bidirectional DC/DC converter synchronization management method, comprise the steps:
Setting measurement benchmark;
Judge power drive system operating mode;
If dynamic operation condition, bidirectional DC/DC converter sends synchronizing signal to energy storage battery management system;
Set up the synchronized links of bidirectional DC/DC converter and energy storage battery management system, and the parameter gathering energy-storage battery calculates for next step.Upgrading battery parameter table through calculating, result of calculation being sent to energy management module simultaneously.
Further, described setting measurement benchmark comprises: the rate of change of the time dependent measurement window of defined parameters or defined parameters change curve in time.
Further, described judgement power drive system operating mode comprises: Parameters variation amount is less than measurement window lower limit, or is less than the rate of change of parameter change curve in time, if at least meet in two conditions, then judges that power drive system is in static operating mode; Parameters variation amount is greater than the measurement window upper limit, or is greater than the rate of change of parameter change curve in time, if at least meet in two conditions, then judges that power drive system is in dynamic operation condition; Parameters variation amount is between measurement window lower limit and the measurement window upper limit, or equals the rate of change of parameter change curve in time, if at least meet in two conditions, then judges that power drive system is in static operating mode.
Further, described bidirectional DC/DC converter transmission synchronizing signal comprises to energy storage battery management system: bidirectional DC/DC converter is issued synchronizing signal and is transferred to energy storage battery management system by broadcast singal or holding wire.
Energy storage battery management system and bidirectional DC/DC converter synchronizing management device, comprise measuring basis setting module, operating mode judge module, synchronized links module, acquisition module and the computing module of being located at energy storage battery management system;
Measuring basis setting module, for the time dependent measurement window of defined parameters or rate of change;
Operating mode judge module, judges power drive system operating mode by described measuring basis and judged result is sent to bidirectional DC/DC converter;
Synchronized links module, for receiving the synchronizing signal that bidirectional DC/DC converter sends, and sets up the synchronized links of bidirectional DC/DC converter and energy storage battery management system;
Acquisition module, for gathering the parameter of energy-storage battery before and after power drive system working conditions change;
Computing module, for calculating the parameter of collection.
Further, described acquisition module comprises battery sensor, for detecting energy-storage battery parameter and sending to energy storage battery management system.
Further, bidirectional DC/DC converter is connected by holding wire with energy storage management system.
Another kind realizes the device of energy storage battery system and bidirectional DC/DC converter management by synchronization: comprise the measuring basis setting module and operating mode judge module of being located at bidirectional DC/DC converter and the synchronized links module being located at energy storage battery management system, acquisition module and computing module;
Measuring basis setting module, for the time dependent measurement window of defined parameters or rate of change;
Operating mode judge module, judges power drive system operating mode by described measuring basis and sends synchronizing signal to energy storage battery management system;
Synchronized links module, for receiving the synchronizing signal of operating mode judge module transmission and setting up, the synchronized links of bidirectional DC/DC converter and energy storage battery management system;
Acquisition module, for gathering the parameter of energy-storage battery before and after power drive system working conditions change;
Computing module, for calculating the parameter of collection.
Further, described acquisition module comprises battery sensor, for detecting energy-storage battery parameter and sending to energy storage battery management system.
Further, bidirectional DC/DC converter is connected by holding wire with energy storage management system.
The invention has the beneficial effects as follows: the present invention realizes the synchronous working of bidirectional DC/DC converter and energy storage management system, change the mode of operation that traditional energy storage battery management system is relatively single; Setting measurement benchmark, the Parameters variation amount of bidirectional DC/DC converter is compared the operating mode determining power drive system with measuring basis, better ageing, because set measurement window lower limit and the measurement window upper limit, the present invention has two threshold values, Shi Hui dead zone, region between two threshold values, this design adds antijamming capability, makes testing result more accurate; Set up energy storage battery management system and synchronous working pattern with bidirectional DC/DC converter, energy storage battery management system can the working conditions change of real-time tracking energy-storage battery, adjust self detection and management strategy, by to the Static Detection of battery status and dynamic management, realize dynamic parameter measurement and computing, energy state and the power rating of power drive system accurately can be provided, while extending the life-span of battery system, improve the reliability of battery system.
Accompanying drawing explanation
Fig. 1 is energy storage battery management system and bidirectional DC/DC converter synchronization management method flow chart in first embodiment of the invention;
Fig. 2 is energy storage battery management system and bidirectional DC/DC converter synchronizing management device structural representation in second embodiment of the invention;
Fig. 3 is energy storage battery management system and bidirectional DC/DC converter synchronizing management device structural representation in third embodiment of the invention;
Fig. 4 is energy storage battery management system and bidirectional DC/DC converter synchronizing management device structural representation in fourth embodiment of the invention;
Fig. 5 is energy storage battery management system and bidirectional DC/DC converter synchronization management method flow chart in fifth embodiment of the invention;
Fig. 6 is electric discharge amplitude variation diagram in time in fifth embodiment of the invention energy storage battery management system and bidirectional DC/DC converter synchronization management method.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
First embodiment:
As shown in Figure 1, the invention provides a kind of energy storage battery management system and bidirectional DC/DC converter synchronization management method, comprise the steps:
Step 100: setting measurement benchmark;
Step 110: judge power drive system (i.e. Full Vehicle System) operating mode;
Step 120: if dynamic operation condition, bidirectional DC/DC converter sends synchronizing signal to energy storage battery management system;
Step 130: the synchronized links setting up bidirectional DC/DC converter and energy storage battery management system, and the parameter gathering current energy-storage battery calculates for next step.Upgrading battery parameter table through calculating, result of calculation being sent to energy management module simultaneously.
This method setting measurement benchmark, compares the Parameters variation amount of bidirectional DC/DC converter the operating mode determining power drive system with measuring basis, better ageing; Set up energy storage battery management system and synchronous working pattern with bidirectional DC/DC converter, energy storage battery management system can the working conditions change of real-time tracking energy-storage battery, adjust self detection and management strategy, by to the Static Detection of energy-storage battery state and dynamic management, realize dynamic parameter measurement and computing.Determine whether send synchronizing signal to the design of energy storage battery management system according to operating mode judged result, build the connection bridge of energy storage battery management system and bidirectional DC/DC converter, energy storage battery management system can the change of perception power drive system operating mode, the data detected better ageing.
Second embodiment:
As shown in Figure 2, the present invention also provides a kind of energy storage battery management system 2 and bidirectional DC/DC converter 1 synchronizing management device, comprises measuring basis setting module 21, operating mode judge module 22, synchronized links module 23, acquisition module 24 and the computing module 25 of being located at energy storage battery management system 2;
Measuring basis setting module 21, for the time dependent measurement window of defined parameters, or the rate of change of defined parameters change curve in time;
Operating mode judge module 22, judges power drive system operating mode by described measuring basis and judged result is sent to bidirectional DC/DC converter 1;
Synchronized links module 23, for receiving synchronizing signal that bidirectional DC/DC converter 1 sends and setting up the synchronized links of bidirectional DC/DC converter 1 and energy storage battery management system 2; Wherein, bidirectional DC/DC converter 1 is connected by holding wire with energy storage battery management system 2, to be changed by level or rising edge/trailing edge trigger realize synchronous; Bidirectional DC/DC converter 1 triggering mode synchronous with the another kind of energy storage battery management system 2 is connected by communication protocol, triggers in a broadcast manner;
Acquisition module 24, for gathering the parameter of energy-storage battery 5 before and after power drive system working conditions change;
Computing module 25, for calculating the parameter of collection.
Upgrading battery parameter table through calculating, result of calculation being sent to energy management module 3 simultaneously.Energy storage battery management system comprises acquisition module 25 in the present embodiment, can use as transducer.
The another kind of implementation of data acquisition adopts battery sensor 4, for detecting energy-storage battery 5 parameter and sending to energy storage battery management system 2.
Bidirectional DC/DC converter 1 is connected with energy storage battery management system 2 and realizes synchronous working, changes the mode of operation that traditional energy storage battery management system is relatively single; Bidirectional DC/DC converter 1 can Forecast and control system condition, coordinates BMS (Battery Management System, battery management system) and synchronously detects and manage.
3rd embodiment:
Be the device that another kind realizes energy storage battery system 32 and bidirectional DC/DC converter 31 management by synchronization as shown in Figure 3, comprise the measuring basis setting module 311 and operating mode judge module 312 of being located at bidirectional DC/DC converter 31 and the synchronized links module 321 being located at energy storage battery management system 32, acquisition module 323 and computing module 322;
Measuring basis setting module 311, for the time dependent measurement window of defined parameters;
Operating mode judge module 312, judges power drive system operating mode by described measurement window and sends synchronizing signal to energy storage battery management system 32;
Synchronized links module 321, for receiving synchronizing signal that operating mode judge module 312 sends and setting up the synchronized links of bidirectional DC/DC converter 31 and energy storage battery management system 32;
Acquisition module 323, for gathering the parameter of energy-storage battery 5 before and after power drive system working conditions change;
Computing module 322, for calculating the parameter of collection.
Battery parameter table is upgraded through calculating, result of calculation is sent to energy management module 3 simultaneously, this module independent of bidirectional DC/DC converter 31 (as shown in this embodiment), also can embed its intelligent bidirectional DC/DC converter of inner formation (as shown in the 4th embodiment).
Energy storage battery management system comprises acquisition module 323 in the present embodiment, can use as transducer.
The another kind of implementation of data acquisition adopts battery sensor 4, for detecting energy-storage battery 5 parameter and sending to energy storage battery management system 32.
4th embodiment:
Be that energy management module 413 is integrated in the structural representation forming intelligent bidirectional DC/DC converter in bidirectional DC/DC converter 41 as shown in Figure 4, comprise measuring basis setting module 411, operating mode judge module 412 and the energy management module 413 of being located at bidirectional DC/DC converter 41 and the synchronized links module 421 being located at energy storage battery management system 42, acquisition module 423 and computing module 422;
Measuring basis setting module 411, for the rate of change of the time dependent change curve of defined parameters;
Operating mode judge module 412, by sending synchronizing signal to energy storage battery management system 42 with described rate of change multilevel iudge power drive system operating mode;
Synchronized links module 421, for receiving synchronizing signal that operating mode judge module 412 sends and setting up the synchronized links of bidirectional DC/DC converter 41 and energy storage battery management system 42;
Acquisition module 423, for gathering the parameter of energy-storage battery 5 before and after power drive system working conditions change;
Computing module 422, for calculating the parameter of collection.
Upgrading battery parameter table through calculating, result of calculation being sent to energy management module 413 simultaneously.
Energy storage battery management system 42 comprises acquisition module 423 in the present embodiment, can use as transducer.
The another kind of implementation of data acquisition adopts battery sensor 4, for detecting energy-storage battery 5 parameter and sending to energy storage battery management system 42.
Energy management module 413 is integrated in bidirectional DC/DC converter 41 and forms intelligent bidirectional DC/DC converter, space has been saved on the basis not changing original hierarchy of control, decrease the space that whole device takies in electric motor car.
5th embodiment:
As shown in Figure 5, the present embodiment illustrates energy storage battery management system and bidirectional DC/DC converter synchronization management method for electric automobile acceleration, after the energy management unit of bidirectional DC/DC D converter receives discharge signal, judge whether to meet the Test Cycle requirement carrying out energy-storage battery dynamic parameter over time according to electric discharge amplitude, if met the demands, send synchronizing signal, this synchronizing signal comprises the information such as regime mode, Selecting parameter, and notice energy storage battery management system carries out relevant work.The method comprises:
Setting measurement benchmark, the present embodiment is specifically described using the time dependent measurement window of defined parameters that (replacement scheme as the present embodiment measuring basis can be the rate of change of the time dependent change curve of defined parameters, relatively the size of parameter and rate of change carrys out certainty annuity operating mode, or the rate of change considering measurement window and parameter carrys out the operating mode of certainty annuity); It comprises measurement window lower limit and the measurement window upper limit, defined parameters measure over time be 5% point as measurement window lower limit, defined parameters measure over time be 8% point as the measurement window upper limit;
Judge energy-storage battery operating mode, namely measure over time according to the electric discharge amplitude (energy) of bidirectional DC/DC converter and compare with measurement window, if described Parameters variation amount is less than measurement window lower limit, then be judged as static operating mode, if described Parameters variation amount is greater than the measurement window upper limit, be then judged as dynamic operation condition; If Parameters variation amount is between measurement window lower limit and the measurement window upper limit, then judge that power drive system is in static operating mode.
Be judged as dynamic operation condition, then bidirectional DC/DC converter sends synchronizing signal to energy storage battery management system, and bidirectional DC/DC converter is issued synchronizing signal and is transferred to energy storage battery management system by broadcast singal or holding wire;
Set up the synchronized links of bidirectional DC/DC converter and energy storage battery management system, realization can be triggered by the level change of the holding wire of both connections or rising edge/trailing edge synchronous; Another kind of synchronous triggering mode is connected by communication protocol, triggers in a broadcast manner; Energy storage battery management system gathers the parameter of current energy-storage battery, calculates for next step.
Detailed process is as follows:
Step 500: setting measurement window, comprises measurement window lower limit and the measurement window upper limit, defined parameters measure over time be 5% point as measurement window lower limit, defined parameters measure over time be 8% point as the measurement window upper limit; And variable quantity be 5% point and variable quantity be the point of 8% all with hysteresis characteristic, improve the anti-interference of system; Such as: the time dependent measurement window W (V of definition voltage
min, V
max), or the time dependent measurement window W (I of definition electric current
min, I
max), or the time dependent measurement window W (P of definition power
min, P
max), or the time dependent measurement window W (E of definition energy
min, E
max) etc.
Step 501: bidirectional DC/DC converter judges power drive system operating mode; Electric discharge amplitude in limiting time is compared with measurement window.
Step 502: determine whether dynamic operation condition; If the Parameters variation amount in the unit interval is greater than the measurement window upper limit, be then judged as dynamic operation condition (namely operating mode changes, and may be charged state or discharge condition);
If the Parameters variation amount in this unit interval is less than measurement window lower limit, be then judged as that energy-storage battery is in static operating mode (i.e. energy storage battery management system idle state);
If the variable quantity of the parameter in the unit interval is between measurement window lower limit and the upper limit, be then judged as that energy-storage battery is in static operating mode (working conditions change slow state).
Step 503: if judging is dynamic operation condition, then bidirectional DC/DC converter sends synchronizing signal to energy storage battery management system.
Step 504: if judging is static operating mode, then adjusts mode of operation and the power consumption control of energy storage battery management system in real time, carry out monitoring and calibration operation, the mode of operation of real-time adjustment energy storage battery management system, realize open circuit voltage to detect, the state information of battery and the management of battery stable state, electric current I, voltage V, time T, battery SOC (State Of Charge, state-of-charge), battery SOP (State Of Power, power rating) and battery SOE (State Of Energy, energy state) calibration, power consumption control, battery balanced control, multiplexer channel is calibrated, the function such as failure diagnosis and maintenance, and continuation execution step 501 judges power drive system operating mode, prepare to receive outside working conditions change instruction.
Step 505: energy storage battery management system receives synchronizing signal; Synchronizing signal is issued broadcast singal transmission by communication port or is directly connected by holding wire and transmits.
Step 506: determine whether built vertical synchronized links; If not, then perform step 507, if so, then directly perform step 508.
Step 507: the synchronized links setting up bidirectional DC/DC converter and energy storage battery management system.
Step 508: energy storage battery management system gathers synchronized links and sets up the parameter in moment and mark, and carries out simple operation simultaneously; And judge whether bidirectional DC/DC converter issues synchronizing signal;
When for discharge condition, energy-storage battery will be discharged to DC bus by bidirectional DC/DC converter, perform step 503 and issue synchronizing signal to energy storage battery management system; Energy storage battery management system sends battery parameter acquisition instructions to battery sensor, battery sensor receives instruction and gathers the parameter such as polarization resistance, Ohmic resistance real-time Transmission to energy storage battery management system, and energy storage battery management system stores this parameter and is labeled as effectively; If this parameter is read, then change the mark of this position in memory, now this data failure.Energy storage battery management system carries out simple operation to acquisition parameter, and operation result is labeled as effectively, if this result is read, then changes mark, and now result lost efficacy.
When for charged state, DC bus will be charged to energy-storage battery by bidirectional DC/DC converter, perform step 503 and issue synchronizing signal to energy storage battery management system; Energy storage battery management system sends battery parameter acquisition instructions to battery sensor, and battery sensor receives instruction and gathers the parameter such as polarization resistance, Ohmic resistance real-time Transmission to energy storage battery management system; Energy storage battery management system stores this parameter and is labeled as effectively; If this parameter is read, then change the mark of this position in memory, now this data failure.Operation result is labeled as effectively, if this result is read, then changes mark, and now result lost efficacy.
Step 509: operation result is sent to energy management module, judges that whether operation result is effective; If effectively, then perform step 510, otherwise, perform step 501.
Step 510: upgrade battery parameter table, determine actual parameter.Such as A (SOC, T, R), B (SOC, T, R) ..., upgrade battery parameter table and be and upgrade A ' (SOC ', T ', R '), B ' (SOC ', T ', R ') ..., computing simultaneously upgrades energy-storage battery SOC, SOE and SOP etc.
Fig. 6 provides electric discharge amplitude variation diagram in time, in figure:
T1-T2: discharge capacity is less than measurement window lower limit or is between window upper and lower limit, is judged as static operating mode, carries out monitoring or calibration operation;
T2: discharge capacity is greater than the measurement window upper limit, is judged as dynamic operation condition, and be before state variation, bidirectional DC/DC converter issues synchronizing signal, and notifies that energy storage battery management system records current state parametric data, and marks;
T3: discharge capacity is greater than the measurement window upper limit, is judged as dynamic operation condition, and be after state variation, bidirectional DC/DC converter issues synchronizing signal, and notifies that energy storage battery management system records current state parametric data, and marks; The characterization parameter of this point can be calculated according to the data of record.
Such as: calculate the internal resistance of energy-storage battery at this point:
For T4, T5 ... Tn ... in the moment, bidirectional DC/DC converter, according to work condition state, makes issue synchronizing signal accordingly, notice energy storage battery management system record current time parameter, and marks; The characterization parameter of different time node is calculated according to the data of record.
Based on the angle of total system, the technology of this management energy-storage battery can be applied to large-scale energy-storage system and high-power fast charging and discharging energy storage battery management system, comprise intelligent grid, generation of electricity by new energy, in the large-scale energy-storage system such as electric automobile and distributed energy storage system.
Obviously, it will be understood by those skilled in the art that and the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various change and change.All do within spirit of the present invention and principle any amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. energy storage battery management system and bidirectional DC/DC converter synchronization management method, is characterized in that, comprise the steps:
Setting measurement benchmark;
Judge power drive system operating mode;
If dynamic operation condition, bidirectional DC/DC converter sends synchronizing signal to energy storage battery management system;
Set up the synchronized links of bidirectional DC/DC converter and energy storage battery management system, and the parameter gathering energy-storage battery calculates for next step.
2. energy storage battery management system according to claim 1 and bidirectional DC/DC converter synchronization management method, it is characterized in that, described setting measurement benchmark comprises: the rate of change of the time dependent measurement window of defined parameters or defined parameters change curve in time.
3. energy storage battery management system according to claim 2 and bidirectional DC/DC converter synchronization management method, it is characterized in that, described judgement power drive system operating mode comprises: Parameters variation amount is less than measurement window lower limit, or be less than the rate of change of parameter change curve in time, if at least meet in two conditions, then judge that power drive system is in static operating mode; Parameters variation amount is greater than the measurement window upper limit, or is greater than the rate of change of parameter change curve in time, if at least meet in two conditions, then judges that power drive system is in dynamic operation condition; Parameters variation amount is between measurement window lower limit and the measurement window upper limit, or equals the rate of change of parameter change curve in time, if at least meet in two conditions, then judges that power drive system is in static operating mode.
4. energy storage battery management system according to claim 3 and bidirectional DC/DC converter synchronization management method, it is characterized in that, described bidirectional DC/DC converter sends synchronizing signal and comprises to energy storage battery management system: bidirectional DC/DC converter issues synchronizing signal, is transferred to energy storage battery management system by broadcast singal or holding wire.
5. realize the device of energy storage battery management system described in any one of claim 1-4 and bidirectional DC/DC converter synchronization management method, it is characterized in that, comprise measuring basis setting module, operating mode judge module, synchronized links module, acquisition module and the computing module of being located at energy storage battery management system;
Measuring basis setting module, for the time dependent measurement window of defined parameters or rate of change;
Operating mode judge module, judges power drive system operating mode by described measuring basis and judged result is sent to bidirectional DC/DC converter;
Synchronized links module, for receiving synchronizing signal that bidirectional DC/DC converter sends and setting up the synchronized links of bidirectional DC/DC converter and energy storage battery management system;
Acquisition module, for gathering the parameter of energy-storage battery before and after power drive system working conditions change;
Computing module, for calculating the parameter of collection.
6. device according to claim 5, is characterized in that, described acquisition module comprises battery sensor, for detecting energy-storage battery parameter and sending to energy storage battery management system.
7. device according to claim 6, is characterized in that, bidirectional DC/DC converter is connected by holding wire with energy storage management system.
8. realize the device of energy storage battery management system described in any one of claim 1-4 and bidirectional DC/DC converter synchronization management method, it is characterized in that, comprise the measuring basis setting module and operating mode judge module of being located at bidirectional DC/DC converter and the synchronized links module being located at energy storage battery management system, acquisition module and computing module;
Measuring basis setting module, for the time dependent measurement window of defined parameters or rate of change;
Operating mode judge module, judges power drive system operating mode by described measuring basis and sends synchronizing signal to energy storage battery management system;
Synchronized links module, for receiving synchronizing signal that operating mode judge module sends and setting up the synchronized links of bidirectional DC/DC converter and energy storage battery management system;
Acquisition module, for gathering the parameter of energy-storage battery before and after power drive system working conditions change;
Computing module, for calculating the parameter of collection.
9. device according to claim 8, is characterized in that, described acquisition module comprises battery sensor, for detecting energy-storage battery parameter and sending to energy storage battery management system.
10. device according to claim 9, is characterized in that, bidirectional DC/DC converter is connected by holding wire with energy storage management system.
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| CN114094654A (en) * | 2021-10-27 | 2022-02-25 | 广东中锂智联技术有限公司 | Echelon battery management system and bidirectional DCDC converter synchronous management method |
| CN114825407A (en) * | 2022-06-22 | 2022-07-29 | 锦浪科技股份有限公司 | Charging and discharging switching method, device, system and medium of bidirectional converter |
| CN114825407B (en) * | 2022-06-22 | 2022-10-18 | 锦浪科技股份有限公司 | Charging and discharging switching method, device, system and medium of bidirectional converter |
| CN115864565A (en) * | 2022-11-16 | 2023-03-28 | 惠州恒立能源科技有限公司 | Lithium ion battery energy storage system and method based on energy storage converter |
| CN115864565B (en) * | 2022-11-16 | 2023-09-26 | 惠州因博利电子科技有限公司 | Lithium ion battery energy storage system and method based on energy storage converter |
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