CN110165689A - A kind of control system for energy-storage system and corresponding energy-storage system - Google Patents
A kind of control system for energy-storage system and corresponding energy-storage system Download PDFInfo
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- CN110165689A CN110165689A CN201910433253.0A CN201910433253A CN110165689A CN 110165689 A CN110165689 A CN 110165689A CN 201910433253 A CN201910433253 A CN 201910433253A CN 110165689 A CN110165689 A CN 110165689A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000012512 characterization method Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 230000003862 health status Effects 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003542 behavioural effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
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Classifications
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- H02J13/0062—
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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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of control systems for energy-storage system, comprising: the first bus is configured as the control instruction of transmission energy-storage system；And second bus, it is configured as the status data of transmission energy-storage system.By the system, the communication efficiency inside energy-storage system between each component can be greatly provided, to improve the gross efficiency of energy-storage system, and then improves the efficiency of clean energy resource.
Description
Technical field
The present invention generally relates to accumulator fields, in particular to a kind of control system for energy-storage system.
Moreover, it relates to a kind of energy-storage system with aforementioned control system.
Background technique
In recent years, the fields such as clean energy resource such as wind energy, solar energy show fast-developing trend.The big rule of clean energy resource
Mould development and the fluctuation of its own bring challenge to grid balance.Based on the energy-storage system of electrochemical techniques in electric system
More and more great effect is played in balance.
Energy-storage system needs to have the function of energy storage and release, these functions require corresponding control system come it is real
It is existing.The control system of energy-storage system needs to acquire external input, and including but not limited to power grid frequency modulation or peak regulation instructs, ammeter,
Phasor measuring set (Phasor Measurement Unit, PMU) and other energy-storage system information, and calculated according to corresponding
Method quickly responds.It more and more applies, the accuracy of energy-storage system control is proposed with real-time high in reality
Requirement.
One key factor of influence energy-storage system performance is the communication efficiency inside energy-storage system between each component.Mesh
Before, the electric energy management system (Energy Management System, EMS) of energy-storage system passes through single bus and single or more
A electrical conversion systems (Power Conversion System, PCS) and single or multiple battery management system (Battery
Management System, BMS) it connects to collect information from them and control their behavior.However, such framework
The disadvantage is that the real-time of energy storage control system control is poor, this is mainly manifested in three aspects:
(1) real-time of EMS acquisition system load adjustment request is poor；
(2) real-time of the communication between EMS and PCS/BMS is poor；
(3) real-time of the behavior of EMS control PCS/BMS is poor.
It is desirable to a kind of control system of higher efficiency.
Summary of the invention
From the prior art, the task of the present invention is provide a kind of control system for energy-storage system and corresponding
Energy-storage system can greatly provide the communication efficiency inside energy-storage system between each component, to improve by the system
The gross efficiency of energy-storage system, and then improve the efficiency of clean energy resource.
In the first aspect of the present invention, which is solved by a kind of control system for energy-storage system, the control
System includes:
Main station controller.Brain of the main station controller as entire control system needs each equipment in acquisition system
Information, and corresponding algorithm is executed, the execution equipment in control system makes corresponding movement；Main station controller has at least double
Bus interface；Multicore or monokaryon chip can be based on main station controller hardware, it can be based on cores such as ARM, MIPS or INTEL
Piece；Can be using single or multiple MCU, single or multiple control panels are realized；It can be based on main station controller software
The real time operating systems such as linux, VxWorks, μ C/OS, μ Clinux, eCos, FreeRTOS；
From station control.According to the number of devices for needing to control in system, 0 or 1 or more are needed in control system
It is a from station control.Slave station control is connected with one or more main station controllers, receives the control of main station controller；Slave station simultaneously
Controller is connect with PCS, BMS, controls the behavior of PCS and BMS；Has at least dual bus interface from station control；Slave station control
Multicore or monokaryon chip can be based on device hardware, it can be based on chips such as ARM, MIPS or INTEL；Can using single or
Person multiple MCU, single or multiple control panels are realized；On slave station controller software can based on linux, VxWorks, μ C/OS,
The real time operating systems such as μ Clinux, eCos, FreeRTOS；
PCS at least has dual bus interface；Its major function is to realize AC power source to the charging of energy-storage battery group and energy storage
The transformation of electrical energy that battery pack is discharged to AC power source.Its control unit can be based on multicore or monokaryon chip, can be based on
Perhaps the chips such as INTEL can be using single or multiple MCU by ARM, MIPS, DSP, and single or multiple control panels are realized.It can
It, can not also base operation to be based on the real time operating systems such as linux, VxWorks, μ C/OS, μ Clinux, eCos, FreeRTOS
System is realized；
BMS, is responsible for single cluster battery, and BMS may also have an embedded controller, it is also possible to a single-chip microcontroller；Its
Major function realizes the voltage of energy-storage battery group, electric current, temperature and the monitoring of states such as charged, is balanced with protection；It can be with base
It, can be based on chips such as ARM, MIPS, DSP or INTEL in multicore or monokaryon chip；It can use single or multiple
MCU, single or multiple control panels are realized；
At least two sets of bus structures are used in the control system between each equipment.A set of bus transfer main controller is to PCS
The control command sent with BMS, another set of bus transfer PCS and BMS information；
Bus can use industry ethernet, CAN bus, 485 buses, 422 buses, Profibus bus, INTERBUS
Bus or LIN bus.
Main station controller has following three kinds from the connection type of station control and PCS, BMS:
The first: main station controller is directly connect with PCS and BMS from station control；
Second: main station controller or from station control directly with connection, PCS connect with BMS.PCS can be with one
Or more BMS connections；
The third: main station controller is connect from station control with PCS, is connect with part BMS, and other BMS and PCS connect
It connects；
Main controller needs to be attached with other equipment simultaneously, including but not limited to ammeter, and power grid instruction issues equipment etc.；
Main controller and power grid instruction issue the connection of equipment, can be monobus mode, are also possible to dual bus mode；
Typical way therein is connected using Ethernet.In one embodiment of the invention, it is connected using Ethernet
When mode, in order to which the stability of connection forms ethernet ring network, when certain root cable or intermediate equipment go out using daisy chaining
When problem, main controller and equipment still can be with normal communications.Ethernet ring network can be using STP (Spanning-Tree Protocol), RSTP (quickly
Spanning-Tree Protocol), MSTP (Multiple Spanning Tree Protocol) or RRPP (rapid ring protection protocol)；
Other equipment are connected with following three kinds of modes in main station controller and control system:
The first: not from station control in system, main station controller is directly connect with PCS, BMS.
Second: have in system from station control, main station controller is only connect with from station control, from station control with
PCS, BMS connection
The third: having in system from station control, and main station controller was not only connect with from station control, but with part PCS,
BMS connection.
Corresponding three of the above connection type, when main station controller receives dispatch command,
The first: main website decomposes dispatch command according to the number of devices being currently accessed, using mean allocation or
It is allocated by output power or by remaining capacity or other means, directly issues control command to PCS or BMS.
Second: main website decomposes dispatch command according to the number of devices being currently accessed, using mean allocation or
It is allocated by output power or by remaining capacity or other means, directly issues control command to from station control, slave station
After controller receives control instruction, divided with mean allocation by output power or by remaining capacity or other means
Match, sends control command to PCS or BMS.
The third: main website decomposes dispatch command according to the number of devices being currently accessed, using mean allocation or
It is allocated by output power or by remaining capacity or other means, directly issues control command to from station control and portion
The PCS and BMS point directly connect with main website, after receiving control instruction from station control, with mean allocation or by output work
It rate or is allocated by remaining capacity or other means, sends control command to PCS or BMS.
System uses dual-bus structure, and under three cases above, control command is issued from the first bus, while slave station controls
Device, PCS, BMS information upload to main station controller from the second bus；
Corresponding three of the above connection type, when system breaks down,
The first connection type:
Failure 1, main station controller can not get the instruction that system issues: main website control is according to set tactful normal control
The charge and discharge of PCS, BMS progress energy.When main station controller can not get the instruction that system issues, main station controller meeting for a long time
The work of halt system.
Failure 2, main station controller failure: system is out of service.
Failure 3, PCS or BMS failure；Main website forecloses failure PCS, BMS, in real time when response scheduling instructs
According to can work normally equipment situation in current system, carry out task distribution；
Second of connection type:
Failure 1, main station controller can not get the instruction that system issues: main website control is according to set tactful normal control
The charge and discharge of system progress energy.When main station controller can not get the instruction that system issues for a long time, main station controller can stop
The work of locking system.
Failure 2, main station controller failure:
The tactful charge and discharge that can a) carry out energy according to set tactful normal control system from station control.Work as main station controller
When long-time failure, from the work of station control meeting halt system.
Tactful PCS, BMS work for b) stopping connection from station control.
Failure 3, main station controller and some between station control communication disconnect or some slave station controller failure:
Main website forecloses PCS, BMS of this slave station and its connection, in real time according to can normally be connect in current system it is controlled from
Controller situation distributes task.
Failure 4:PCS or BMS failure；Main website forecloses failure PCS, BMS, in real time when response scheduling instructs
According to can work normally equipment situation in current system, carry out task distribution；
The third connection type:
Failure 1, main station controller can not get the instruction that system issues: main website control is according to set tactful normal control
The charge and discharge of system progress energy.When main station controller can not get the instruction that system issues for a long time, main station controller can stop
The work of locking system.
Failure 2, main station controller failure:
The tactful charge and discharge that can a) carry out energy according to set tactful normal control system from station control.Work as main station controller
When long-time failure, from the work of station control meeting halt system.
Tactful PCS, BMS work for b) stopping connection from station control.
Failure 3, main station controller and some between station control communication disconnect or some slave station controller failure:
Main website forecloses PCS, BMS of this slave station and its connection, in real time according to can normally be connect in current system it is controlled from
Controller situation distributes task.
Failure 4:PCS or BMS failure；Main website forecloses failure PCS, BMS, in real time when response scheduling instructs
According to can work normally equipment situation in current system, carry out task distribution；
Main station controller has very important status in entire control system, in one embodiment of the invention,
For the safety and stablization of system, by the way of dual controller stand-by heat；Usual main station controller work, works as failure
When, it is quickly switched into an other main station controller.
In the second aspect of the present invention, which is solved by a kind of control system for energy-storage system, the control
System includes:
First bus is configured as the control instruction of transmission energy-storage system；And
Second bus is configured as the status data of transmission energy-storage system.
It is provided in an expansion scheme of the invention, the status data includes one or more of the following:
The voltage of accumulator, the electric current of accumulator, the temperature of accumulator, the data and characterization storage of the health status of characterization accumulator
The data of the charged state of energy device.The status data can also include characterization electrical conversion systems PCS and battery management system
The behavior of BMS or the data of parameter, such as PCS and BMS are with the presence or absence of failure, the current operation of PCS and BMS.Other states
Data are also conceivable.By the expansion scheme, it can preferably pass through the various states of the second bus transfer, behavioral data.
It is provided in a preferred embodiment of the invention, is connected separately with electricity in the first bus and on the second bus
Energy management system EMS, electrical conversion systems PCS and battery management system BMS, and the first bus is configured as transmission from EMS
The control instruction sent to PCS and BMS, and the second bus is configured as transmitting the status number sent from PCS and BMS to EMS
According to.By the preferred embodiment, the control instruction separated between EMS and PCS and BMS transmission and status data transfers may be implemented,
To realize more efficient communication, the gross efficiency of energy-storage system is thus improved.It also can connect it in the first and second buses
Its component is to realize above-mentioned efficient communication.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus is
RS485 bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
RS485 bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
RS422 bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
CAN bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
Industry ethernet.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
Profibus bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
INTERBUS bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is RS485 bus；And/or wherein the second bus is
LIN bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus is
RS422 bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus be with
Too network bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus is
Profibus bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus is
INTERBUS bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It provides in another preferred embodiment of the invention, the first bus is CAN bus；And/or wherein the second bus is LIN
Bus.By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.
It is provided in another preferred embodiment of the invention, it is excellent that the first bus is configured with the communication higher than the second bus
First grade.By the preferred embodiment, EMS may be implemented to the real-time control of each component.
In the third aspect of the present invention, foregoing task is solved by a kind of energy-storage system, which includes:
Electric energy management system EMS is configured as executing electric energy management；
Electrical conversion systems PCS is configured as executing the transformation of electrical energy of charging accumulator and electric discharge；
Battery management system BMS is used to monitor the state of accumulator；And
Control system comprising:
First bus, wherein the EMS as host and PCS and BMS as slave are connected in the first bus, and
Wherein the first bus is configured as transmitting the control instruction sent from EMS to PCS and BMS；And
Second bus, wherein being connected with EMS, PCS and BMS on the second bus, and wherein the second bus is configured as
Transmit the status data sent from PCS and BMS to EMS.
It is provided in an expansion scheme of the invention, the energy-storage system includes multiple PCS and multiple BMS.By this
The efficient communication between EMS and multiple PCS and multiple BMS may be implemented in expansion scheme, to realize better electric energy management.
It is provided in a preferred embodiment of the invention, the first bus is CAN bus, wherein assisting from EMS using CANOPEN
It discusses to PCS and BMS and sends control instruction；And/or
Wherein the second bus is RS485 bus, wherein sending status number to EMS from PCS and BMS using Modbus agreement
According to.
By the preferred embodiment, efficient control instruction transmission and status data transfers may be implemented.Other communication protocols
It is also conceivable.
It provides in another preferred embodiment of the invention, it is excellent that the first bus is configured with the communication higher than the second bus
First grade.By the preferred embodiment, EMS may be implemented to the real-time control of each component.
The present invention at least have it is following the utility model has the advantages that (1) in the present invention, by using include control instruction bus and shape
The dual-bus structure of state data/address bus can greatly improve the real-time of the behaviour control to component each in energy-storage system, together
When guarantee status data transfers speed；(2) present invention is without carrying out complicated structure improvement and control to existing energy-storage system
Being obviously improved for internal communication efficiency can be realized in flow scheme improvements.
Detailed description of the invention
With reference to specific embodiment, the present invention is further explained with reference to the accompanying drawing.
Fig. 1 shows the schematic diagram of the control system of energy-storage system according to the present invention.
Specific embodiment
It should be pointed out that each component in each attached drawing may be shown in which be exaggerated in order to illustrate, and it is not necessarily ratio
Example is correctly.In the drawings, identical appended drawing reference is equipped with to the identical component of identical or function.
In the present invention, each embodiment is intended only to illustrate the solution of the present invention, and is understood not to restrictive.
In the present invention, unless otherwise indicated, quantifier "one", " one " and the scene for not excluding element.
It is also noted herein that in an embodiment of the present invention, for it is clear, for the sake of simplicity, might show only one
Sub-unit or component, but those skilled in the art are it is understood that under the teachings of the present invention, it can be according to concrete scene
Need to add required component or component.
In addition, the number of the step of each method of the invention limit the method step execute sequence.Unless special
It does not point out, various method steps can be executed with different order.
Fig. 1 shows the schematic diagram of energy-storage system 100 according to the present invention.
As shown in Figure 1, energy-storage system 100 includes electric energy management system EMS 103, it is configured as executing electric energy management.
Electric energy management system EMS 103 is, for example, power management module, can be realized with software, hardware or firmware.
Energy-storage system 100 further includes multiple electrical conversion systems PCS 104, is configured as executing filling for battery pack 106
The transformation of electrical energy of electricity and electric discharge.Electrical conversion systems PCS 104 is for example configured as executing AC-to DC and direct current to exchanging
Conversion.
Energy-storage system 100 further includes multiple battery management system BMS 105, is used to monitor the state of battery pack 106.Electricity
Pond management system BMS is for example available or measures accumulator, the various parameters of such as battery, such as voltage, power supply, temperature.
Energy-storage system 100 further includes battery pack 106, is configured as storage electric energy.Energy-storage battery group 106 is for example including more
The rechargeable battery of a serial or parallel connection, such as battery.It should be understood that in the present invention, the energy-storage battery group
The case where covering single battery or battery.
Energy-storage system 100 further includes control system comprising:
First bus 101, wherein being connected in the first bus 101 as the EMS 103 of host and as slave
PCS 104 and BMS 105, and wherein the first bus 101 is configured as transmission from EMS 103 to PCS 104 and BMS 105 hair
The control instruction sent.First bus 101 for example can be CAN bus, can be using PDO (Process in CANOPEN agreement
Data Object, process data object) mode is triggered to PCS 104 and BMS 105 transmission control command.EMS 103,PCS
104 can have CAN controller interface with BMS 105, and wherein EMS 103 is master controller or host, PCS 104 and BMS
105 be control node or slave.When EMS 103 needs to be implemented the charge-discharge electric power of power management, such as regulating cell group 106
When, it will can control accordingly data and update into corresponding PDO, so as in Fast synchronization to PCS 104 and BMS 105.CAN
Multiple PCS 104 and multiple BMS 104 can be accessed in bus, it is possible to quickly control multiple PCS and BMS.
Second bus 102, wherein EMS 103, PCS 104 and BMS 105 are connected in the second bus 102, and
Wherein the second bus 102 is configured as transmitting the status data sent from PCS 104 and BMS 105 to EMS 103.Second bus
102 can be RS485 bus for example to acquire the data of PCS 104 and BMS 105.Specific communication protocol can be a variety of more
Sample, such as can be the standard agreements such as Modbus, it can also be custom protocol.
Illustrative Conflicts management strategy is described below.It should be noted here that other Conflicts management strategies are also that can set
Think.If EMS 103 is needed to 105 executive control operation of PCS 104 and BMS, such as 106 charge and discharge electric work of regulating cell group
Rate, and lucky EMS 103 is passing through the number of the second bus 102, such as RS485 bus acquisition PCS 104 or BMS 105 at this time
According to EMS 103 can immediately pass through the first bus 101, such as CAN bus and control command is sent to PCS 104 in this case
With BMS 104, the end communicated without data acquisition in waiting RS485 bus.In EMS 103, the processing of CAN bus is excellent
Prior to the processing of RS485 bus.When to handle CAN bus communication and RS485 bus communication in EMS 103 simultaneously, preferentially hold
Communication in row CAN bus.That is, the first bus 101 has the communication priority higher than the second bus 102.Thus
It ensure that the real-time that EMS controls PCS and BMS.
The present invention at least have it is following the utility model has the advantages that (1) in the present invention, by using include control instruction bus and shape
The dual-bus structure of state data/address bus can greatly improve the real-time of the behaviour control to component each in energy-storage system, together
When guarantee status data transfers speed；(2) present invention is without carrying out complicated structure improvement and control to existing energy-storage system
Being obviously improved for internal communication efficiency can be realized in flow scheme improvements.
Although some embodiments of the present invention are described in present specification, those skilled in the art
Member is it is understood that these embodiments are merely possible to shown in example.Those skilled in the art under the teachings of the present invention may be used
To expect numerous variant schemes, alternative solution and improvement project without beyond the scope of this invention.The appended claims purport
It is limiting the scope of the invention, and is covering the method in the range of these claims itself and its equivalents and knot whereby
Structure.
Claims (10)
1. a kind of control system for energy-storage system, comprising:
First bus is configured as the control instruction of transmission energy-storage system；And
Second bus is configured as the status data of transmission energy-storage system.
2. control system according to claim 1, wherein the state data packets include one or more of the following:
The voltage of accumulator, the electric current of accumulator, the temperature of accumulator, the data and characterization storage of the health status of characterization accumulator
The data of the charged state of energy device.
3. control system according to claim 1, wherein being connected separately in the first bus and on the second bus
Electric energy management system EMS, electrical conversion systems PCS and battery management system BMS, and the first bus be configured as transmission from
The control instruction that EMS is sent to PCS and BMS, and the second bus is configured as transmitting the state sent from PCS and BMS to EMS
Data.
4. control system according to claim 1, wherein the first bus is CAN bus；And/or
Wherein the second bus is RS485 bus.
5. control system according to claim 1, wherein the first bus is configured with the communication higher than the second bus
Priority.
6. a kind of energy-storage system, comprising:
Electric energy management system EMS is configured as executing electric energy management；
Electrical conversion systems PCS is configured as executing transformation of electrical energy；
Battery management system BMS is used to monitor the state of accumulator；And
Control system comprising:
First bus, wherein being connected with the EMS as host and PCS and BMS as slave in the first bus, and wherein
First bus is configured as transmitting the control instruction sent from EMS to PCS and BMS；And
Second bus, wherein being connected with EMS, PCS and BMS on the second bus, and wherein the second bus is configured as transmitting
The status data sent from PCS and BMS to EMS.
7. energy-storage system according to claim 6, wherein the energy-storage system includes multiple PCS, multiple BMS and battery
Group.
8. energy-storage system according to claim 6, wherein the first bus is CAN bus, wherein using CANOPEN from EMS
Agreement sends control instruction to PCS and BMS；And/or
Wherein the second bus is RS485 bus, wherein using Modbus agreement to EMS status data from PCS and BMS.
9. energy-storage system according to claim 6, wherein the first bus is configured with the communication higher than the second bus
Priority.
10. energy-storage system according to claim 6, wherein the first bus is selected from including following group: RS485 is total
Line and CAN bus；And/or
Second bus is selected from including following group: RS485 bus, RS422 bus, CAN bus, industry ethernet,
Profibus bus, INTERBUS bus and LIN bus.
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