CN110488199A - A kind of high capacity cell energy-accumulating power station battery system alarm response method - Google Patents
A kind of high capacity cell energy-accumulating power station battery system alarm response method Download PDFInfo
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- CN110488199A CN110488199A CN201910830496.8A CN201910830496A CN110488199A CN 110488199 A CN110488199 A CN 110488199A CN 201910830496 A CN201910830496 A CN 201910830496A CN 110488199 A CN110488199 A CN 110488199A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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Abstract
The present invention provides a kind of high capacity cell energy-accumulating power station battery systems to alert response method, in optimization EMS, on the basis of PCS and BMS communication mechanism, organically pass through two-way even three road redundant alarm response channels, realize that EMS and PCS quickly handles the classification of alarm signal, pass through diversified communication path, so that energy-accumulating power station Energy Management System and energy storage converter system synchronize make corresponding action effect, on the basis of promoting alarm signal to obtain reliable response, ensure energy-accumulating power station Energy Management System, the state synchronized and safe and stable operation of energy storage converter system and battery management system.
Description
Technical field
The present invention relates to high capacity cell energy-accumulating power station technical fields, and in particular to a kind of high capacity cell of high reliability
Energy-accumulating power station battery system alerts response method.
Background technique
Energy-storage system to the space-time transfer ability of power and energy be solve intermittent new energy power output fluctuation,
Having a rest property etc. consolidates problematic effective measures, and and with the widely available application of the new energy technologies such as wind-power electricity generation, photovoltaic power generation
It obtains fast-developing.Relative to the energy storage mode such as flywheel, water-storage, compressed air, super capacitor, battery energy storage power station has
Energy storage density is big, addressing is flexible, install convenient, can four-quadrant smooth steady operation the advantages that, has entered at home extensively build
Stage, source side, load side battery energy storage power station have no small construction scale.Grid side battery energy storage power station, which has, participates in electricity
The functions such as net peak load shifting, frequency adjust, reactive power support and emergent control, can effectively lifting system operation after Large scale construction
Flexibility, stability, economy and cleannes.
The energy storage carrier of grid side battery energy storage power station is mainly ferric phosphate lithium cell, battery cell capacity and voltage at present
It is smaller.Often capacity is larger for grid side battery energy storage power station, and large number of battery is contained more than MW class, in composition
Monomer.These battery cells are by series-parallel form, successively step by step by battery pack, battery pack, battery cluster and battery pile
Integration mode forms energy-storage system.Battery energy storage power station developing state is preferable in recent years, but is also faced with severe safety simultaneously
There is intrinsic problem on fire in situation, lithium ion battery, energy storage electricity occurred in the country such as China, the U.S., South Korea in principle
Stand severe event that is fiery, influencing operation of power networks.For the safe and stable operation water for improving energy-accumulating power station battery system and energy storage station
It is flat, it needs to construct perfect, reliable, effective battery system alarm response mechanism.
Battery energy storage power station uses PWM commutation technique, response speed with higher.In optimization EMS, PCS and BMS communication
On the basis of mechanism, by two-way even three road redundant alarm response channels, realize EMS and PCS to the quick place of alarm signal
Reason, it can be achieved that the real-time online of battery system failure reliably monitors and is isolated, pacify by the operation for improving battery system and energy-accumulating power station
Quan Xing.
Summary of the invention
Based on the above issues, the invention discloses a kind of high capacity cell energy-accumulating power station battery systems to alert response method,
Battery energy storage power station uses PWM commutation technique, response speed with higher.In the base of optimization EMS, PCS and BMS communication mechanism
On plinth, organically by two-way even three road redundant alarm response channels, realize that EMS and PCS is quick to the classification of alarm signal
Processing, by diversified communication path so that energy-accumulating power station Energy Management System and energy storage converter system synchronize make it is corresponding
Action effect, on the basis of promoting alarm signal to obtain reliable response, it is ensured that energy-accumulating power station Energy Management System, energy storage become
The state synchronized and safe and stable operation of streaming system and battery management system.
According to an aspect of the present invention, a kind of high capacity cell energy-accumulating power station battery system alarm response method is provided,
Include the following steps:
Step 1: the perfect communication contact between building EMS, PCS and BMS all carries out between EMS and PCS and BMS
IEC61850 communication, carry out Modbus and the hardwire communication of parallel redundancy between PCS and BMS, to ensure that BMS warning information can
By uploading；
Step 2: establishing the alarm of BMS three-level and response mechanism, and the operating status of real-time monitoring battery system, alert
When BMS send signal to EMS and PCS immediately；
It is specifically included in the step 2:
Step 2-1: battery system status signal in battery flat is divided into three levels by severity, specifies each electricity
Three levels of cell system state alert action value, it is ensured that each level alarm signal action message and return；
Step 2-2: BMS alarm signal response mechanism is established in EMS system: only receiving any battery system mode level-one announcement
Corresponding energy accumulation current converter is reduced when alert signal runs power；When receiving certain battery system state firsts and seconds alarm signal simultaneously
Giving an order shuts down corresponding energy accumulation current converter；Hair when receiving certain battery system state level-one, second level and three-level alarm signal simultaneously
Instruction makes corresponding energy accumulation current converter tripping, and tripping refers to PCS shutdown, simultaneously tripping PCS alternating current-direct current side breaker；
Step 2-3: establishing BMS alarm signal response mechanism in pcs system, only receives any battery system mode level-one announcement
When reducing corresponding energy accumulation current converter when alert signal and run power, while receiving certain battery system state firsts and seconds alarm signal
Giving an order shuts down corresponding energy accumulation current converter, while hair when receiving certain battery system state level-one, second level and three-level alarm signal
Instruction makes corresponding energy accumulation current converter tripping；
Step 2-4: battery system state in each battery flat BMS system real-time monitoring cabin, when monitoring alarm signal, simultaneously
EMS and pcs system are reported by IEC61850 and Modbus specification, is sent on hard contact if monitoring that three-level alarm signal separately passes through
To PCS；
Step 3:EMS and PCS are acted after receiving the alarm signal sent on BMS by set policy synchronization, it is ensured that any communication
BMS alarm signal still is able to reliably execute after loop fault.
Further, the battery system status signal of step 2-1 includes voltage, electric current, temperature and/or insulating signal.
Further, the step 1 includes:
Step 1-1: the Ethernet connection between EMS and BMS is established, realizes BMS state and alarm signal at different levels to EMS system
System uploads；For not having the BMS producer of IEC61850 specification communication function, increase communication protocol converting means in BMS system side
It sets；
Step 1-2: the Ethernet connection between EMS and PCS is established, realizes that EMS control instruction is assigned to PCS；For not
Have the PCS producer of IEC61850 specification communication function, increases communication protocol conversion equipment in pcs system side.
Step 1-3: establishing the Modbus communication connection between PCS and BMS, realize BMS state and alarm signal at different levels to
Pcs system uploads；
Step 1-4: the hard contact connection between PCS and BMS is established, realizes BMS three-level alarm signal in the redundancy of PCS
It passes.
Further, the step 3 includes:
After step 3-1:EMS receives the Level 1Alarming signal sent on BMS, fall power instruction, PCS are sent out to corresponding PCS immediately
Receive after the Level 1Alarming signal sent in the fall power instruction or BMS that EMS is issued downrating immediately, PCS and EMS or BMS
Communication only need one of them intact to can ensure that fall power instruction reliably executes；
After step 3-2:EMS receives the second level alarm signal sent on BMS, halt instruction is sent out to corresponding PCS immediately, PCS is received
Hard stop after to the EMS halt instruction issued or the second level alarm signal sent on BMS；
After step 3-3:EMS receives the three-level alarm signal sent on BMS, trip command is sent out to corresponding PCS immediately, PCS is received
It trips immediately after the three-level alarm signal sent on Modbus or hardwire to the EMS trip command issued or BMS；
Step 3-4: under extreme case, when Level 1Alarming signal fails reliably to execute, failure continues after developing by second level
Alert response mechanism movement；If second level alarm signal fails reliably to execute, failure continues development and alerts response machine by three-level
Braking is made；If IEC61850 and Modbus communicates equal failure, tripping is realized by the hardwire between BMS and PCS, it is ensured that be
System safety.
In a further aspect, the invention also discloses a kind of high capacity cell energy-accumulating power station battery systems to alert response system
System characterized by comprising
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out alarm response method as described in any one of the above embodiments.
In a further aspect, the invention also discloses a kind of non-transient computer readable storage mediums, which is characterized in that
The non-transient computer readable storage medium stores computer instruction, and it is as above that the computer instruction executes the computer
State described in any item alarm response methods.
It is an advantage of the current invention that proposing a kind of high capacity cell energy-accumulating power station battery system alarm response method, electricity
Pond energy-accumulating power station uses PWM commutation technique, response speed with higher.On the basis of optimization EMS, PCS and BMS communication mechanism
On, organically by two-way even three road redundant alarm response channels, realize that EMS and PCS quickly locates the classification of alarm signal
Reason, it can be achieved that the real-time online of battery system failure reliably monitor and is isolated, raising high capacity cell system and energy-accumulating power station
Safety in operation.
Detailed description of the invention
Fig. 1 is battery energy storage power station three digest journals communication architecture schematic diagram in the present invention；
Fig. 2 is the battery system three-level alarm that high capacity cell energy-accumulating power station battery system alerts response method in the present invention
Response mechanism flow chart.
Specific embodiment
The present invention is clearly and completely described below in conjunction with drawings and examples, while also describing the present invention
The technical issues of technical solution solves and beneficial effect, it should be pointed out that described embodiment is intended merely to facilitate to this hair
Bright understanding, and do not play any restriction effect to it.
As shown in Figs. 1-2, the present invention in high capacity cell energy-accumulating power station monitoring system mainly by BMS (Energy
Management System, Energy Management System), PCS (Power Conversion System, energy storage converter system) and
EMS (Battery Management System, battery management system) three digest journals are constituted.
Wherein, BMS is responsible for the urgent isolation of status monitoring and battery system catastrophe failure in battery flat；PCS is responsible for energy storage
The power conversion of current transformer；EMS is responsible for whole station status monitoring and power control.EMS is located at total cabin, and PCS and BMS are located at just
The ground cabin PCS and battery flat, i.e., entire energy storage station include a set of EMS and more set PCS and BMS.
When there is exception or failure in battery flat battery system, can by cell voltage, battery pack pressure difference, electric current, temperature,
The state representations such as insulation come out, and are set, can be classified battery system abnormality by severity by reasonable definite value
Processing.Major part producer battery system is all made of three-level alarming mechanism at present, and part of the manufacturer is upper further thin in first order alarm
Divide and realize multistage current limliting, therefore energy-accumulating power station three-level alarming mechanism can be based on, establish response policy in EMS and pcs system respectively,
The communication contact being then based between EMS, PCS and BMS three, the reliable battery system of building redundancy alert response mechanism.It is right
It is alerted in the first order and the second level, passes through the communication of BMS- > EMS- > PCS IEC61850 specification and the Modbus rule of BMS- > PCS
It about communicates two redundant channels and realizes alarming mechanism reliable response；Corresponding third level alarm removes BMS itself since failure is serious
It can act outside tripping battery pile direct current wire-outgoing breaker in time, separately increase the hard contact communication channel of BMS- > PCS, it is logical in communication
Make PCS reliable shutdown when road failure.There are cumulative effect, level faults to develop to secondary failure for battery system failure, second level
Failure can develop to three-level fault, and handling three-level fault well is the last security perimeter of whole system.
After the alarm response mechanism for establishing redundancy, PCS will receive the alarm for reacting same event in tri- tunnel Liang Zhi simultaneously
Signal, from the angle for improving whole station operation stability, the 1s that is delayed after PCS receives the Level 1Alarming signal sent on BMS is held
Row drop power, receives the drop power signal that EMS is assigned and executes in time, it is ensured that EMS has time enough to carry out weight to whole station power
New distribution.
As shown in Fig. 2, the present invention is directed to the large capacity for having merged three kinds of IEC61850, Modbus, hardwire communication modes
Battery energy storage power station monitoring system proposes the response method based on three-level alarm response mechanism, to realize battery system failure
Real-time online reliably monitor and be isolated, improve the safety in operation of high capacity cell system and energy-accumulating power station.
Wherein, the specific steps packet of a kind of high capacity cell energy-accumulating power station battery system of the invention alarm response method
It includes:
Step 1: the perfect communication contact between building EMS, PCS and BMS all carries out between EMS and PCS and BMS
IEC61850 communication, carry out Modbus and the hardwire communication of parallel redundancy between PCS and BMS, so that it is guaranteed that BMS warning information
It is reliable to upload；
Step 2: establishing the alarm of BMS three-level and response mechanism, and the operating status of real-time monitoring battery system, alert
When BMS send signal to EMS and PCS immediately；
Step 3:EMS and PCS are acted after receiving the alarm signal sent on BMS by set policy synchronization, it is ensured that any communication
BMS alarm signal still is able to reliably execute after loop fault.
The step 1 includes: in one of the embodiments,
Step 1-1: the Ethernet connection between EMS and BMS is established, realizes BMS state and alarm signal at different levels to EMS system
System uploads.For not having the BMS producer of IEC61850 specification communication function, increase communication protocol converting means in BMS system side
It sets；
Step 1-2: the Ethernet connection between EMS and PCS is established, realizes that EMS control instruction is assigned to PCS.For not
Have the PCS producer of IEC61850 specification communication function, increases communication protocol conversion equipment in pcs system side；
Step 1-3: establishing the Modbus communication connection between PCS and BMS, realize BMS state and alarm signal at different levels to
Pcs system uploads；
Step 1-4: the hard contact connection between PCS and BMS is established, realizes BMS three-level alarm signal in the redundancy of PCS
It passes.
The step 2 includes: in one of the embodiments,
Step 2-1: the battery systems status signal such as cell voltage, electric current, temperature, insulation in battery flat is pressed into severity
It is divided into three levels, specifies three level alarm action values of each battery system state, it is ensured that each level alarm signal action message
And return；
Step 2-2: BMS alarm signal response mechanism is established in EMS system: only receiving any battery system mode level-one announcement
Corresponding energy accumulation current converter is reduced when alert signal runs power；When receiving certain battery system state firsts and seconds alarm signal simultaneously
Giving an order shuts down corresponding energy accumulation current converter；Hair when receiving certain battery system state level-one, second level and three-level alarm signal simultaneously
Instruction makes corresponding energy accumulation current converter tripping (tripping refers to PCS shutdown, simultaneously tripping PCS alternating current-direct current side breaker)；
Step 2-3: establishing BMS alarm signal response mechanism in pcs system, only receives any battery system mode level-one announcement
When reducing corresponding energy accumulation current converter when alert signal and run power, while receiving certain battery system state firsts and seconds alarm signal
Giving an order shuts down corresponding energy accumulation current converter, while hair when receiving certain battery system state level-one, second level and three-level alarm signal
Instruction makes corresponding energy accumulation current converter tripping；
Step 2-4: battery system state in each battery flat BMS system real-time monitoring cabin, when monitoring alarm signal, simultaneously
EMS and pcs system are reported by IEC61850 and Modbus specification, is sent on hard contact if monitoring that three-level alarm signal separately passes through
To PCS.
The step 3 includes: in one of the embodiments,
After step 3-1:EMS receives the Level 1Alarming signal sent on BMS, fall power instruction, PCS are sent out to corresponding PCS immediately
Receive after the Level 1Alarming signal sent in the fall power instruction or BMS that EMS is issued downrating immediately, PCS and EMS or BMS
Communication only need one of them intact to can ensure that fall power instruction reliably executes；
After step 3-2:EMS receives the second level alarm signal sent on BMS, halt instruction is sent out to corresponding PCS immediately, PCS is received
Hard stop after to the EMS halt instruction issued or the second level alarm signal sent on BMS；
After step 3-3:EMS receives the three-level alarm signal sent on BMS, trip command is sent out to corresponding PCS immediately, PCS is received
It trips immediately after the three-level alarm signal sent on Modbus or hardwire to the EMS trip command issued or BMS；
Step 3-4: under extreme case, when Level 1Alarming signal fails reliably to execute, failure continues after developing by second level
Alert response mechanism movement；If second level alarm signal fails reliably to execute, failure continues development and alerts response machine by three-level
Braking is made；If IEC61850 and Modbus communicates equal failure, tripping is realized by the hardwire between BMS and PCS, it is ensured that be
System safety.When hardwire between BMS and PCS is to ensure that the last line of defense of battery system safety, field adjustable and O&M
The verifying of palpus emphasis, the validity and reliability for checking the signal.
It is noted that alarm response method of the invention is particularly suitable for the high capacity cell energy-accumulating power station in Fig. 1
The redundant system of battery, it is low to hardware requirement, and the improvement of software aspects also very little, by organically blending
IEC61850, Modbus, three kinds of communication modes of hardwire high capacity cell energy-accumulating power station monitoring system on establish three-level alarm
Mechanism improves high capacity cell system to ensure that the real-time online of battery system failure reliably monitors and is isolated from multi-angle
And the safety in operation of energy-accumulating power station.
Finally, it is stated that: the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. a kind of high capacity cell energy-accumulating power station battery system alerts response method, which comprises the steps of:
Step 1: the perfect communication contact between building EMS, PCS and BMS all carries out between EMS and PCS and BMS
IEC61850 communication, carry out Modbus and the hardwire communication of parallel redundancy between PCS and BMS, to ensure that BMS warning information can
By uploading；
Step 2: the alarm of BMS three-level and response mechanism, and the operating status of real-time monitoring battery system are established, when alerting
BMS sends signal to EMS and PCS immediately；
It is specifically included in the step 2:
Step 2-1: battery system status signal in battery flat is divided into three levels by severity, specifies each battery system
Three levels of system state alert action value, it is ensured that each level alarm signal action message and return；
Step 2-2: BMS alarm signal response mechanism is established in EMS system: only receiving any battery system mode Level 1Alarming letter
Number when reduce corresponding energy accumulation current converter and run power；Certain battery system state firsts and seconds alarm signal is received simultaneously to refer at present
Order shuts down corresponding energy accumulation current converter；Send instructions when receiving certain battery system state level-one, second level and three-level alarm signal simultaneously
Make corresponding energy accumulation current converter tripping, tripping refers to PCS shutdown, simultaneously tripping PCS alternating current-direct current side breaker；
Step 2-3: establishing BMS alarm signal response mechanism in pcs system, only receives any battery system mode Level 1Alarming letter
Number when reduce corresponding energy accumulation current converter and run power, while receiving certain battery system state firsts and seconds alarm signal and referring at present
Order shuts down corresponding energy accumulation current converter, while while receiving certain battery system state level-one, second level and three-level alarm signal sends instructions
Make corresponding energy accumulation current converter tripping；
Step 2-4: battery system state in each battery flat BMS system real-time monitoring cabin when monitoring alarm signal, passes through simultaneously
IEC61850 and Modbus specification reports EMS and pcs system, gives on hard contact if monitoring that three-level alarm signal separately passes through
PCS；
Step 3:EMS and PCS are acted after receiving the alarm signal sent on BMS by set policy synchronization, it is ensured that any order circuit
BMS alarm signal still is able to reliably execute after failure.
2. alarm response method according to claim 1, which is characterized in that the battery system status signal packet of step 2-1
Include voltage, electric current, temperature and/or insulating signal.
3. alarm response method according to claim 1, which is characterized in that the step 1 includes:
Step 1-1: the Ethernet connection between EMS and BMS is established, realizes BMS state and alarm signal at different levels in EMS system
It passes；For not having the BMS producer of IEC61850 specification communication function, increase communication protocol conversion equipment in BMS system side；
Step 1-2: the Ethernet connection between EMS and PCS is established, realizes that EMS control instruction is assigned to PCS；For not having
The PCS producer of IEC61850 specification communication function increases communication protocol conversion equipment in pcs system side.
Step 1-3: establishing the Modbus communication connection between PCS and BMS, realizes BMS state and alarm signal at different levels to PCS system
System uploads；
Step 1-4: the hard contact connection between PCS and BMS is established, realizes that BMS three-level alarm signal is uploaded to the redundancy of PCS.
4. alarm response method according to claim 1, which is characterized in that the step 3 includes:
After step 3-1:EMS receives the Level 1Alarming signal sent on BMS, fall power instruction is sent out to corresponding PCS immediately, PCS is received
Downrating immediately after the Level 1Alarming signal sent in the fall power instruction or BMS that EMS is issued, PCS and EMS's or BMS is logical
It is that can ensure that fall power instruction reliably executes that news, which only need one of them intact,；
After step 3-2:EMS receives the second level alarm signal sent on BMS, halt instruction is sent out to corresponding PCS immediately, PCS receives EMS
Hard stop after the second level alarm signal sent on the halt instruction or BMS issued；
After step 3-3:EMS receives the three-level alarm signal sent on BMS, trip command is sent out to corresponding PCS immediately, PCS receives EMS
The trip command or BMS issued trips immediately after the three-level alarm signal sent on Modbus or hardwire；
Step 3-4: under extreme case, when Level 1Alarming signal fails reliably to execute, failure is alerted after continuing development by second level
Response mechanism movement；If second level alarm signal fails reliably to execute, failure continues development and is moved by three-level alarm response mechanism
Make；If IEC61850 and Modbus communicates equal failure, tripping is realized by the hardwire between BMS and PCS, it is ensured that system peace
Entirely.
5. a kind of high capacity cell energy-accumulating power station battery system alerts response system characterized by comprising
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
It is enough to execute such as the described in any item alarm response methods of Claims 1-4.
6. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction executes the computer such as the described in any item alarm responses of Claims 1-4
Method.
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| CN110970914A (en) * | 2019-11-26 | 2020-04-07 | 力神动力电池系统有限公司 | Energy storage system with safety protection function |
| CN111308913A (en) * | 2020-03-18 | 2020-06-19 | 国网湖南省电力有限公司 | Semi-physical simulation modeling method for high-capacity battery energy storage power station |
| CN111641261A (en) * | 2020-05-08 | 2020-09-08 | 上海宝准电源科技有限公司 | High-reliability energy storage power station communication architecture and method thereof |
| CN112564225A (en) * | 2020-12-10 | 2021-03-26 | 杭州平旦科技有限公司 | Multi-stage combined protection method suitable for storage type energy storage system |
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