CN216698478U

CN216698478U - Novel energy storage battery management system applied to ship

Info

Publication number: CN216698478U
Application number: CN202123254978.5U
Authority: CN
Inventors: 江子烨; 邵立勇; 钱艳婷; 贺浩; 刘文彪
Original assignee: Tianjin Lishen Battery JSCL
Current assignee: Tianjin Lishen Battery JSCL
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-07
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a novel energy storage battery management system applied to a ship. The first-stage battery management system consists of a plurality of series-connected battery modules and uploads the battery modules to the upper-stage battery management system; the second-stage battery management system consists of a plurality of parallel battery clusters; the battery array management system of the third-level battery management system is a BMS main controller, is internally connected to the switch through an Ethernet and is respectively in communication connection with the plurality of battery cluster management units, and is externally in information interaction with the ship monitoring alarm system, the PCS and the EMS through the Ethernet or RS 485; the auxiliary management system is an auxiliary controller and is in communication connection with the BAMS through the Ethernet. The utility model is based on ship construction specifications, adopts the BMS framework of double controllers and redundant temperature management units, greatly enriches external interfaces, effectively improves the module-level heat management capability and BMS management capability, and greatly improves the system safety.

Description

Novel energy storage battery management system applied to ship

Technical Field

The utility model relates to the field of battery power systems, in particular to a novel energy storage battery management system applied to a ship.

Background

With the development of new energy technology and the improvement of requirements of people on ship performance, pure electric ships and hybrid ships are increasingly applied in recent years. However, the current battery management systems for electric-only ships and hybrid ships basically adopt the conventional battery management system for vehicles.

Because the working environment of the ship is different from that of a land product, the control and safety protection requirements on the ship battery power system are specified and greatly different from those of a vehicle battery management system; the battery module management unit cannot monitor the temperature of each battery cell in real time, and is free of redundant control and prone to generating thermal runaway phenomenon; the ship does not have the characteristic of mass production of automobiles, and the power batteries of different ship designs have different factors such as voltage grade, capacity, cooling mode, arrangement type and heat dissipation condition. The lithium battery system designed for ship customization is high in cost and long in development period, so that the design of the universal ship battery management system is of great significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a ship energy storage battery management system with a temperature redundancy management system based on a double controller.

The utility model provides a novel energy storage battery management system applied to a ship, which is realized by the following technical scheme and comprises a first-stage battery management system, a second-stage battery management system and a third-stage battery management system:

the first-stage battery management system consists of a plurality of battery modules which are connected in series, each battery module is provided with a battery module management unit (BLMU) which is used for realizing the voltage and temperature detection of each battery cell in the corresponding battery module and the balance control of the battery cells and uploading the voltage and temperature detection and balance control to the upper-stage battery management system;

the second-stage battery management system consists of a plurality of parallel battery clusters, each battery cluster is provided with a Battery Cluster Management Unit (BCMU) and a high-voltage control unit (HVCU), the lower part of each battery cluster is in communication connection with all battery module management units (BLMU) of the corresponding battery cluster through a CAN bus, the upper part of each battery cluster transmits battery information through an Ethernet, and a command issued by the upper part of each battery cluster is received;

the third-level battery management system consists of a Battery Array Management System (BAMS) and an auxiliary management system (TMS), wherein the Battery Array Management System (BAMS) is a BMS main controller, is internally connected to a switch through an Ethernet and is respectively in communication connection with a plurality of Battery Cluster Management Units (BCMU), and is externally in information interaction with a ship monitoring alarm system, a PCS and an EMS through the Ethernet or RS 485; and the auxiliary management system (TMS) is an auxiliary controller and is in communication connection with the BAMS through an Ethernet, and the auxiliary management system TMS is provided with a CAN BUS interface, an RS485 interface, an RS232 interface, a dry contact input interface and a dry contact output interface, so that the communication requirements of different ship monitoring alarm systems are met.

The Battery Array Management System (BAMS) is an industrial personal computer, is provided with a larger memory and a storage disc, and can be provided with a display and an audible and visual alarm device; the BAMS, as a master controller, is used as a data server to summarize system batch data, record data and events periodically, display a graphical interface, set parameters, and perform some logical operations.

The auxiliary management system (TMS) is a real-time controller board card and cooperates with the BAMS in a division manner to manage and control the BMS;

each battery cluster is additionally provided with a set of temperature acquisition board and a temperature control board for carrying out redundancy control on the temperature of the battery core; the temperature control plate is used for each cluster and is subjected to redundancy control with BCMU; the temperature acquisition board is used for each module.

Compared with the prior art, the novel energy storage battery management system applied to the ship provided by the utility model has the following beneficial technical effects:

1. the technical requirements of the classification society for the battery management system are met.

And 2, BLMU monitors the temperature information of each cell in real time, and the redundant temperature management unit greatly improves the system safety.

3. The BMS architecture with the double controllers greatly improves the BMS capacity, and has strong algorithm and logic control capacity besides strong data processing capacity; the double-controller framework greatly enriches external interfaces and can meet the communication requirements of different ship monitoring and alarming systems.

4. The main controller BAMS is pre-installed with the desktop system, and can exert powerful functions of the desktop system. And meanwhile, the TMS can exert the advantages of an embedded system.

The BAMS is used as a main controller, is an industrial computer, can exert the advantage of strong performance of the computer, and can be simultaneously provided with other software such as debugging software besides BMS software so as to realize in-situ observation, diagnosis, debugging and the like.

And 6, configuring a sound and light alarm device for the BAMS, and giving out sound and light alarm when a fault occurs.

7. As the BAMS is a desktop system, as long as the BAMS is networked, remote desktop access of the BAMS can be realized, and remote access, remote diagnosis and remote debugging are achieved.

TMS CAN realize backup of BAMS key data, transfer of CAN or RS485 and RS232 interfaces according to logic results of BAMS, and CAN also be processed into a new interface protocol to be in butt joint with other standard equipment.

TMS is embedded controller, which can develop and transplant real-time control algorithm conveniently.

10. Through the dry contact detection and control, the signal can be quickly detected and quickly controlled, so that the method is simple, quick and reliable.

The HVCU can realize the functions of calculating the SOC of the battery cluster and detecting the insulation of the battery cluster.

In summary, compared with the prior art, the utility model provides a dual-controller-based energy storage battery management system for a ship with a temperature redundancy management system. Adopt the BMS framework of dual controller, can combine the advantage that these two controllers of industrial computer and real-time embedded controller have separately, reasonable division of labor cooperation to better management battery system has richened external interface greatly, effectively improves BMS's ability, except possessing powerful data processing ability, still possesses powerful algorithm and logic control ability. In addition, the system designs a temperature redundancy management system, and effectively improves the thermal management capability and the system safety of the module level.

The utility model is based on ship construction specifications, adopts the BMS framework of double controllers and redundant temperature management units, greatly enriches external interfaces, effectively improves the module-level heat management capability and BMS management capability, and greatly improves the system safety.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1, the utility model discloses a novel energy storage battery management system applied to a ship, which comprises a first-stage battery management system, a second-stage battery management system and a third-stage battery management system:

the third-level battery management system consists of a Battery Array Management System (BAMS) and an auxiliary management system (TMS), and one BAMS and one TMS are used in one set of energy storage system. The Battery Array Management System (BAMS) is a BMS main controller, is internally connected to the switch through the Ethernet and is respectively in communication connection with a plurality of Battery Cluster Management Units (BCMU), and is externally communicated with a ship monitoring alarm system, a PCS, an EMS and the like through the Ethernet or RS485 information; the auxiliary management system (TMS) is an auxiliary controller, is in communication connection with the BAMS through the Ethernet and expands a plurality of communication interfaces, such as RS485, RS232, CAN, dry contact input, dry contact output and the like;

wherein, the Battery Array Management System (BAMS) is an industrial personal computer, is provided with a larger memory and a storage disc, and can be provided with a display and an audible and visual alarm device; the BAMS, as a master controller, is used as a data server to summarize system batch data, record data and events periodically, display a graphical interface, set parameters, perform some logical operations, and the like.

it should be noted that each battery cluster is additionally provided with a set of temperature acquisition board and a temperature control board to perform redundant control on the battery core temperature. The temperature control board is used for each cluster and is in redundant control with BCMU; one for each module.

In particular, a Battery Array Management System (BAMS), such as windows, may be pre-installed with a desktop system, which may perform its powerful desktop system functions.

In a specific implementation, the auxiliary management system TMS is used as an auxiliary controller and communicates with a Battery Array Management System (BAMS) used as a main controller through an ethernet, and the auxiliary management system (TMS) is used for reading preset critical data of the Battery Array Management System (BAMS) in real time and forwarding a protocol and logic of the Battery Array Management System (BAMS).

In particular, the auxiliary management system (TMS) is an embedded controller, and can design a control algorithm and control logic in a modular graphical manner. The auxiliary Battery Array Management System (BAMS) performs auxiliary logic control.

In the concrete implementation, the auxiliary management system (TMS) CAN forward the Ethernet standard communication protocol of the Battery Array Management System (BAMS) through CAN and RS485 and RS232 interfaces, and CAN also convert and process the interface protocol.

In the concrete implementation, the auxiliary management system (TMS) can realize the signal detection of the dry contact, and can also perform emergency signal control to the outside through the dry contact, or perform charge and discharge logic control to give a charge prohibition signal.

In particular, a High Voltage Control Unit (HVCU) is connected with an external current sensor and an external voltage sensor, SOC calculation and insulation resistance detection are realized through the external current sensor and the external voltage sensor, and information data transmission with a Battery Cluster Management Unit (BCMU) is realized through a CAN BUS (controller area network BUS).

In the concrete realization, voltage sensor and temperature sensor have been put to the equipartition on every section of electric core in the battery module, and voltage signal leads to battery module management unit (BLMU) through one set of pencil on, and temperature signal leads to BLMU and temperature acquisition board respectively through two sets of pencil on.

In the concrete realization, a plurality of battery module management units (BLMU) cascade together through the CAN BUS, and this CAN BUS articulates Battery Cluster Management Unit (BCMU) and High Voltage Control Unit (HVCU) simultaneously, and wherein, Battery Cluster Management Unit (BCMU) is as higher level's management for read each battery module management unit (BLMU) and high voltage control unit (HVCU's collection and calculation information in real time, also CAN control and parameter setting to it.

In the concrete realization, a plurality of temperature acquisition boards cascade together through the CAN BUS, and this CAN BUS articulates temperature control board simultaneously, and wherein, temperature control board is as higher level's management for read the information of every temperature acquisition board in real time.

In concrete realization, Battery Cluster Management Unit (BCMU) and temperature control board all can control two relays (namely main positive relay K1 and main negative relay K2), and the temperature of any one electric core exceeds the threshold value, and Battery Cluster Management Unit (BCMU) and temperature control board all can break off the relay to carry out module level's thermal management, and can effectively realize management system's redundant control.

In the concrete implementation, a Battery Array Management System (BAMS), an auxiliary management system (TMS) and a plurality of Battery Cluster Management Units (BCMU) are connected together by network cables through an Ethernet switch, and the communication and data exchange among the battery array management system, the auxiliary management system (TMS) and the BCMU can be realized. The Ethernet switch is selected according to the number of the battery clusters, such as an eight-port switch or a five-port switch.

In the specific implementation, 220VAC provided from the outside is converted into 24VDC through AC-DC, and is divided into multiple paths by a terminal block to supply power to BAMS, TMS, a switch, all BCMU, HVCU, BLMU, a temperature control board and a temperature acquisition board respectively.

The present invention is described in detail below.

1. The utility model meets the technical requirements of the classification society on the battery management system.

And 2, BLMU monitors the voltage and temperature information of each battery cell in real time, and the redundant temperature management unit greatly improves the system safety.

6. As the BAMS is a desktop system, as long as the BAMS is networked, remote desktop access of the BAMS can be realized, and remote access, remote diagnosis and remote debugging are achieved.

TMS CAN realize backup of BAMS key data, transfer of logic results of BAMS, forwarding of CAN or RS485 and RS232 interfaces, and processing of new interface protocols and butt joint of other standard equipment.

8. The TMS is an embedded controller, and a real-time control algorithm can be conveniently developed and transplanted.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel energy storage battery management system for boats and ships, characterized by comprises first order battery management system, second level battery management system and third level battery management system:

the first-stage battery management system consists of a plurality of battery modules which are connected in series, each battery module is provided with a battery module management unit BLMU for realizing voltage and temperature detection of each battery cell in the corresponding battery module and balance control of the battery cells and uploading the voltage and temperature detection and balance control to the upper-stage battery management system;

the second-stage battery management system consists of a plurality of parallel battery clusters, each battery cluster is provided with a battery cluster management unit BCMU and a high-voltage control unit HVCU, the battery clusters are respectively in communication connection with all battery module management units BLMU of the corresponding battery cluster through a CAN bus from bottom to top, battery information is transmitted through an Ethernet from top to bottom, and an instruction issued by a superior level is received;

the third-stage battery management system consists of a battery array management system BAMS and an auxiliary management system TMS, wherein the battery array management system BAMS is a BMS main controller, is internally connected to the switch through an Ethernet and is respectively in communication connection with a plurality of battery cluster management units BCMU, and is externally in information interaction with a ship monitoring alarm system, a PCS and an EMS through the Ethernet or RS 485; the auxiliary management system TMS is an auxiliary controller and is in communication connection with the BAMS through an Ethernet, and a CAN BUS interface, an RS485 interface, an RS232 interface, a dry contact input interface and a dry contact output interface are arranged on the auxiliary management system TMS, so that the auxiliary management system TMS is suitable for communication requirements of different ship monitoring and alarming systems.

2. The novel energy storage battery management system applied to the ship as claimed in claim 1, wherein the battery array management system BAMS is an industrial personal computer, carries 4GB-12GB of internal memory on board, is additionally provided with a corresponding extended storage disk, and is provided with a display and an audible and visual alarm device.

3. The novel energy storage battery management system applied to the ship of claim 1, wherein the auxiliary management system TMS is a real-time controller card, and is used for managing and controlling the BMS in cooperation with the BAMS in a division manner.

4. The novel energy storage battery management system applied to the ship as claimed in claim 1, wherein each battery cluster is additionally provided with a set of temperature acquisition board and a set of temperature control board for performing redundant control on the cell temperature; the temperature control plate is used for each cluster and is subjected to redundancy control with BCMU; the temperature acquisition board is used for each module.