CN213661206U - Safe BMS system of unusual quick protection of battery energy storage system - Google Patents
Safe BMS system of unusual quick protection of battery energy storage system Download PDFInfo
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- CN213661206U CN213661206U CN202021649253.9U CN202021649253U CN213661206U CN 213661206 U CN213661206 U CN 213661206U CN 202021649253 U CN202021649253 U CN 202021649253U CN 213661206 U CN213661206 U CN 213661206U
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Abstract
The utility model belongs to the technical field of energy storage battery management system, concretely relates to safe BMS system of unusual quick protection of battery energy storage system, to prior art and scheme, the relay on every battery operational parameter monitoring sampling module has been saved, the automatically controlled switch break-make actuating electric signal and the terminal that adopts every battery operational parameter monitoring sampling module are directly connected with the automatically controlled switch of battery cluster connection direct current generating line respectively, when monitoring the battery unusual promptly, the automatically controlled switch of the direct electric drive disconnection battery cluster connection direct current generating line of battery operational parameter monitoring sampling module, prevent the occurence of failure, system architecture and constitution have been simplified from this, the cost is practiced thrift, reach the beneficial effect of doing all the best work doubly, the response speed and the reliability of BMS to battery protection have been improved simultaneously.
Description
Technical Field
The utility model belongs to the technical field of energy storage battery management system, concretely relates to safe BMS system of unusual quick protection of battery energy storage system.
Background
The utility model is the utility model with the publication number of CN210577773U and the subject name of BMS safety chain protection device, and the technical proposal discloses that the input end of each battery measuring unit is electrically connected with the output relay K0 of the battery system main control unit, and the output end of each battery measuring unit is respectively provided with the output relay; the direct current control unit comprises a main contactor KM, output relays at the output ends of the battery measurement units are mutually connected in series and are electrically connected with an input interface of the direct current control unit of the junction cabinet, and an output interface of the direct current control unit is in butt joint with a battery pack of the junction cabinet. The "public solution also records that" the BSU receives an upper EMS (Energy Management System) command to allow operation. The BSU does not detect the fault, the output relay K0 contact is closed, and 24V control electricity is output. Through every BTU (when each electric core voltage, temperature, when normal, its output relay contact is closed) output relay contact is established ties (K13, K12.. said, K1), for DCU's input interface Power supply, through opto-coupler isolation, DCU obtains the normal signal of group cluster, if received the instruction that BSU closed a floodgate at this moment, main contactor KM closed a floodgate, and the group battery is connected with PCS (Power ConvertSystems, converter system). Otherwise, when the BTU fails, the DCU receives the abnormal signal of the battery string as long as one of the K1-K13 is disconnected, the KM is quickly disconnected (without passing through a communication network), and the connection between the battery pack and the PCS is cut off, so that the safety of the battery pack is ensured.
Taking the above utility model patent as an example, there is the shortcoming in above-mentioned technical scheme, mainly is:
1) the safe start cannot be carried out: before the relay K0 contact is closed, each BTU controls electricity to be not conducted, the DCU cannot work and acquire battery parameters, and the BSU cannot judge whether the battery has faults or not; if a set of power supply system is added, the cost is increased and waste is caused.
2) Response delay: even if the operation is started, because a two-stage driving power-off mode is adopted, namely when the battery measuring unit finds that the battery is abnormal, the relay (one corresponding to K1-K13) on the BTU of the DCU is firstly driven to be disconnected, so that the DCU receives an abnormal signal of the battery pack and disconnects the KM again, the time of one driving and disconnecting action is increased, and the response delay is caused.
3) High cost and poor reliability: because each battery measuring unit BTU is provided with a relay and the output relays of the output ends of the battery measuring units are mutually connected in series, a plurality of relays not only increase the cost, but also reduce the reliability of the system.
Disclosure of Invention
The utility model discloses to prior art's situation, overcome above defect, provide a safe BMS system of battery energy storage system unusual quick protection.
The utility model discloses a main aim at, the structure of improvement BMS system and the configuration of optimizing system constitute, reduce cost improves BMS to battery protection's response speed and reliability.
The utility model adopts the following technical scheme, a safe BMS system of unusual quick protection of battery energy storage system, its characterized in that, at least match a high voltage direct current cabinet, the safe BMS system of unusual quick protection of battery energy storage system includes the energy storage battery management and control unit of connecting higher level energy storage management system EMS, and the energy storage battery management and control unit includes the working power supply connecting switch; every high-voltage direct current cabinet is including the battery cluster management and control module of connecting each battery operational parameter monitoring sampling module and the battery cluster connection direct current generating line's automatically controlled switch promptly electric signal drive break-make relay or contactor, wherein: each battery operation parameter monitoring and sampling module is respectively provided with an electric control switch on-off driving electric signal and a terminal, and each electric control switch on-off driving electric signal and terminal are respectively and directly connected with an electric control switch of a corresponding battery cluster connection direct current bus.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that an electric control switch of a battery cluster connecting direct current bus is respectively connected with a high-voltage direct current bus and a battery cluster to form a direct current power path of the battery cluster and a battery energy storage PCS.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that a battery cluster is formed by connecting a plurality of battery packs in series, wherein each battery pack is formed by connecting a plurality of batteries in series.
The safe BMS system for the abnormal rapid protection of the battery energy storage system is characterized in that a battery operation parameter monitoring and sampling module is respectively connected with each battery in a battery pack to form a full-battery-core real-time monitoring path and system of the battery energy storage system.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that an energy storage battery management and control unit is connected with each battery cluster management and control module through a battery management and control communication line to form a path for the energy storage battery management and control unit to acquire real-time operation parameters of a battery.
The safe BMS system for the abnormal rapid protection of the battery energy storage system is characterized in that a battery cluster control module is connected with each battery operation parameter monitoring and sampling module through a battery cluster communication line to form a path for the battery cluster control module to monitor and read each battery operation parameter in real time.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that an energy storage management system EMS is connected with an energy storage battery management and control unit and an energy storage converter PCS through an energy storage system communication line to form a management and control path for regulating and controlling the charging and discharging of the energy storage system by the energy storage management system EMS.
A safe BMS system of unusual quick protection of battery energy storage system, its characterized in that, battery operating parameter monitoring sampling module mainly includes: embedded controller MPU, data memory, signal sampling circuit, automatically controlled switch break-make signal drive circuit and signal of telecommunication port, communication interface circuit, clock circuit, working power supply circuit, module control bus, wherein: the embedded controller MPU is respectively connected with the data memory, the signal sampling circuit, the electric control switch on-off signal driving circuit, the electric signal port, the communication interface circuit, the clock circuit and the working power supply circuit through the module control bus, the embedded controller MPU reads the running parameters of the battery in real time through the signal sampling circuit, and when the battery parameters exceed a preset normal range, the embedded controller MPU sends an electric signal for driving the battery cluster to be connected with the electric control switch of the direct current bus through the electric control switch on-off signal driving circuit and the electric signal port to disconnect the corresponding battery cluster from the direct current bus.
The utility model discloses a safe BMS system of unusual quick protection of battery energy storage system, its beneficial effect lies in, the relay on every battery operational parameter monitoring sampling module has been saved, the electric control switch break-make drive signal of telecommunication and the terminal that adopts every battery operational parameter monitoring sampling module are directly connected with the electric control switch of battery cluster connection direct current generating line respectively, promptly when monitoring the battery unusual, the electric control switch of the direct electric drive disconnection battery cluster connection direct current generating line of battery operational parameter monitoring sampling module, prevent the occurence of failure, system architecture and constitution have been simplified from this, the cost is saved, reach the beneficial effect of doing all the best, the response speed and the reliability of BMS to the battery protection have been improved simultaneously.
Drawings
Fig. 1 is a schematic block diagram of a safety BMS system for abnormal rapid protection of a battery energy storage system and a configuration thereof.
Fig. 2 is a schematic diagram of the battery operation parameter monitoring and sampling module.
Detailed Description
A safety BMS system for abnormal rapid protection of a battery energy storage system will be described as an example of implementation with reference to the accompanying drawings, however, the described embodiments are some, but not all, embodiments of the present invention applied to a safety BMS system for abnormal rapid protection of a battery energy storage system. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The technology and the scheme of the utility model are not limited to the content given in this embodiment.
As shown in fig. 1, the safety BMS system for abnormally and rapidly protecting the battery energy storage system is characterized in that at least one high-voltage direct current cabinet 1 is matched, the safety BMS system for abnormally and rapidly protecting the battery energy storage system comprises an energy storage battery management and control unit 3 connected with an upper energy storage management system EMS2, and the energy storage battery management and control unit 3 comprises a working power supply connection switch 30; each high-voltage direct-current cabinet 1 comprises a battery cluster control module 5 connected with each battery operation parameter monitoring and sampling module 4 and an electric control switch 6 of a battery cluster connection direct-current bus, namely a relay or a contactor driven by an electric signal to be switched on or off, wherein: each battery operation parameter monitoring and sampling module 4 is respectively provided with an electric control switch on-off driving electric signal and a terminal 7, and each electric control switch on-off driving electric signal and terminal 7 are respectively and directly connected with an electric control switch 6 of a direct current bus connected with a corresponding battery cluster.
The safe BMS system for the abnormal rapid protection of the battery energy storage system is characterized in that an electric control switch 6 of a battery cluster connection direct current bus is respectively connected with a high-voltage direct current bus 8 and a battery cluster 9 to form a direct current power path of the battery cluster and a battery energy storage PCS.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that a battery cluster 9 is formed by connecting a plurality of battery packs in series, wherein each battery pack 10 is formed by connecting a plurality of batteries in series.
The safe BMS system for the abnormal rapid protection of the battery energy storage system is characterized in that the battery operation parameter monitoring and sampling module 4 is respectively connected with each battery in the battery pack 10 to form a full-battery-core real-time monitoring path and system of the battery energy storage system.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that the energy storage battery management and control unit 3 is connected with each battery cluster management and control module 5 through a battery management and control communication line 31, acquires real-time operation parameters of a battery and manages and controls the battery in real time.
The safe BMS system for the abnormal rapid protection of the battery energy storage system is characterized in that a battery cluster management and control module 5 is connected with each battery operation parameter monitoring and sampling module 4 through a battery cluster communication line 11, and is used for monitoring and reading operation parameters of each battery in real time, calculating and analyzing the operation parameters, and generating data of dynamic electric quantity and health state of the battery.
The safe BMS system for the abnormal and rapid protection of the battery energy storage system is characterized in that an energy storage management system EMS2 is connected with an energy storage battery management and control unit 3 and an energy storage converter PCS through an energy storage system communication line 21 to form a management and control path for regulating and controlling the charging and discharging of the energy storage system through an energy storage management system EMS 2.
As shown in fig. 2, the safety BMS system for abnormal rapid protection of a battery energy storage system is characterized in that the battery operating parameter monitoring and sampling module 4 mainly comprises: embedded controller MPU41, data memory 42, signal sampling circuit 43, electric control switch on-off signal drive circuit electric signal port 44, communication interface circuit 45, clock circuit 46, working power supply circuit 47, module control bus 48, wherein: the embedded controller MPU41 is respectively connected with the data memory 42, the signal sampling circuit 43, the electric control switch on-off signal driving circuit and the electric signal port 44, the communication interface circuit 45, the clock circuit 46 and the working power supply circuit 47 through the module control bus 48, the embedded controller MPU41 reads the running parameters of the battery in real time through the signal sampling circuit 43, and when the battery parameters exceed the preset normal range, the embedded controller MPU41 sends the electric signal for driving the battery cluster to be connected with the electric control switch 6 of the direct current bus through the electric control switch on-off signal driving circuit and the electric signal port 44 to be disconnected, so that the connection between the corresponding battery cluster and the direct current bus is disconnected.
The utility model discloses a safe BMS system of unusual quick protection of battery energy storage system, its beneficial effect lies in, the relay on every battery operational parameter monitoring sampling module 4 has been saved, the automatically controlled switch break-make drive signal of telecommunication and terminal 7 that adopt every battery operational parameter monitoring sampling module 4 are directly connected with the automatically controlled switch 6 of battery cluster connection direct current generating line respectively, promptly when monitoring the battery unusual, the automatically controlled switch 6 of the direct electric drive disconnection battery cluster connection direct current generating line of battery operational parameter monitoring sampling module 4, prevent the occurence of failure, system architecture and constitution have been simplified from this, the cost is saved, reach the beneficial effect that makes a lesson twice, the response speed and the reliability of BMS to the battery protection have been improved simultaneously.
Claims (8)
1. The safety BMS system for the abnormal and rapid protection of the battery energy storage system is characterized by being matched with at least one high-voltage direct current cabinet (1), and comprises an energy storage battery management and control unit (3) connected with an upper energy storage management system EMS (2), wherein the energy storage battery management and control unit (3) comprises a working power supply connecting switch (30); every high voltage direct current cabinet (1) is including connecting battery cluster management and control module (5) and the automatically controlled switch (6) of battery cluster connection direct current generating line of each battery operational parameter monitoring sampling module (4), wherein: each battery operation parameter monitoring and sampling module (4) is respectively provided with an electric control switch on-off driving electric signal and a terminal (7), and each electric control switch on-off driving electric signal and terminal (7) are respectively and directly connected with an electric control switch (6) of a direct current bus connected with a corresponding battery cluster.
2. The safety BMS system for the abnormal rapid protection of the battery energy storage system according to claim 1, wherein the electric control switch (6) of the battery cluster connected DC bus is respectively connected with the high voltage DC bus (8) and the battery cluster (9) to form a DC power path of the battery cluster and the battery energy storage PCS.
3. The safety BMS system for the abnormally rapid protection of a battery energy storage system according to claim 1, wherein the battery cluster (9) is constructed by connecting a plurality of battery packs (10) in series, wherein each battery pack (10) is constructed by connecting a plurality of batteries in series.
4. The safety BMS system for the abnormal rapid protection of the battery energy storage system according to claim 1, wherein each battery operation parameter monitoring and sampling module (4) is connected to each battery in the battery pack (10) to form a full-cell real-time monitoring path and system of the battery energy storage system.
5. The safety BMS system according to claim 1, wherein the energy storage battery management and control unit (3) is connected to each battery cluster management and control module (5) through a battery management and control communication line (31) to form a path for the energy storage battery management and control unit (3) to obtain the real-time battery operating parameters.
6. The safety BMS system for the abnormal rapid protection of the battery energy storage system according to claim 1, wherein the battery cluster management and control module (5) is connected to each battery operation parameter monitoring and sampling module (4) through a battery cluster communication line (11) to form a path for the battery cluster management and control module (5) to monitor and read each battery operation parameter in real time.
7. The safety BMS system according to claim 1, wherein the energy storage management system EMS (2) is connected to the energy storage battery management and control unit (3) and the energy storage converter PCS through the energy storage system communication line (21) to form a management and control path for the energy storage management system EMS (2) to regulate and control the charging and discharging of the energy storage system.
8. The safety BMS system for the abnormal rapid protection of the battery energy storage system according to claim 1, wherein the battery operation parameter monitoring and sampling module (4) mainly comprises: embedded controller MPU (41), data memory (42), signal sampling circuit (43), automatically controlled switch break-make signal drive circuit and signal of telecommunication port (44), communication interface circuit (45), clock circuit (46), working power supply circuit (47), module control bus (48), wherein: the embedded controller MPU (41) is respectively connected with the data memory (42), the signal sampling circuit (43), the electric control switch on-off signal driving circuit and the electric signal port (44), the communication interface circuit (45), the clock circuit (46) and the working power supply circuit (47) through a module control bus (48), the embedded controller MPU (41) reads the running parameters of the battery in real time through the signal sampling circuit (43), and when the battery parameters exceed the preset normal range, the embedded controller MPU (41) sends the electric signal for driving the battery cluster to be connected with the electric control switch (6) of the direct current bus to be disconnected through the electric control switch on-off signal driving circuit and the electric signal port (44), so that the connection between the corresponding battery cluster and the direct current bus is disconnected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021649253.9U CN213661206U (en) | 2020-08-10 | 2020-08-10 | Safe BMS system of unusual quick protection of battery energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021649253.9U CN213661206U (en) | 2020-08-10 | 2020-08-10 | Safe BMS system of unusual quick protection of battery energy storage system |
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