CN217427754U - Battery energy storage system based on online hot backup battery module controlled switching - Google Patents
Battery energy storage system based on online hot backup battery module controlled switching Download PDFInfo
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- CN217427754U CN217427754U CN202122998048.4U CN202122998048U CN217427754U CN 217427754 U CN217427754 U CN 217427754U CN 202122998048 U CN202122998048 U CN 202122998048U CN 217427754 U CN217427754 U CN 217427754U
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Abstract
The utility model provides a battery energy storage system based on the controlled switching of online hot backup battery module, adopt and establish ties battery monomer and dispose online monitoring circuit and real-time dynamic switching switch group, but constitute the battery group cluster system that switching battery module and hot backup switching battery module establish ties, overcome prior art when monitoring unusual battery monomer, can not the developments in time keep apart the battery or the battery package of trouble, but will unusual battery monomer place whole battery group cluster or the whole disconnection of system and stop the energy storage system operation and just can change the defect of maintaining. When the abnormal battery appears, the module of the abnormal battery is cut out in real time on line and the battery or the battery pack of the hot backup module is accessed in line, so that the normal continuous operation of the battery energy storage system is ensured, powerful support is provided for the stability of a power grid, the system utilization rate and the investment income are improved, and the short plate effect effective solution scheme for ensuring the safe continuous operation of the battery energy storage system and reducing charging and discharging is provided.
Description
Technical Field
The utility model belongs to the technical field of the battery energy storage, concretely relates to battery energy storage system based on the controlled switching of online hot backup battery module.
Background
In order to access an energy storage converter to charge and discharge, a battery energy storage system, in particular a lithium battery energy storage system, needs to connect a plurality of battery monomers in series to reach the working range of the direct-current side voltage of the energy storage converter. Due to the inconsistency of the innate and the acquired of the single battery, the charge and the discharge of the energy storage system generate a short plate effect, and the single battery is easy to have the situation of overcharge and overdischarge; if abnormal single batteries cannot be monitored and isolated in time, greater risks of malignant accidents and explosion can be caused. Therefore, the real-time monitoring and isolation of the abnormal single batteries are key problems which need to be solved to ensure the safe operation of the battery energy storage system and reduce the short plate effect of charging and discharging.
The method adopted by the prior art for solving the problems is that when the abnormal single batteries are detected, the whole battery pack string or the whole battery energy storage unit system where the corresponding abnormal single batteries are located is cut off, the operation is stopped, and the battery energy storage unit system is replaced and maintained. Therefore, the normal operation of the battery energy storage system is seriously influenced, the stability of a power grid is influenced, and the utilization rate of the system and the investment income are reduced.
Disclosure of Invention
Therefore, when a battery pack string formed by serially connecting battery monomers is in operation, abnormal batteries or battery packs can be isolated in time when the battery monomers are abnormal, so that the whole battery energy storage system can continuously operate. The utility model provides a battery energy storage system based on online hot backup battery module controlled switching, its characterized in that, a plurality of can throw cut battery module and a plurality of hot backup throw cut battery module series connection constitute the battery group cluster that satisfies energy storage converter direct current side voltage working range to insert the direct current end of energy storage converter; furthermore, the battery energy storage management and control system is respectively connected with the battery monitoring module, the battery pack string reconstruction controller and the battery monitoring module through an energy storage system monitoring bus, so that a real-time monitoring and energy management path of the battery energy storage system with the on-line hot backup battery module controlled switching is formed.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a plurality of switchable battery modules and a plurality of hot backup switchable battery modules are connected in series to form a battery pack string, a switchable battery module battery or a battery pack is arranged in each switchable battery module, a hot backup switchable battery module 1 st battery or battery pack and a hot backup switchable battery module 2 nd battery or battery pack are arranged in each hot backup switchable battery module, the hot backup switchable battery module 1 st battery or battery pack and the hot backup switchable battery module 2 nd battery or battery pack are controlled to form one-use two-series connection or two-parallel connection.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a battery string is formed by connecting a plurality of switchable battery modules and a plurality of hot backup switching battery modules in series, and the positive pole and the negative pole of the battery string are respectively connected with the positive pole and the negative pole of the direct current side of an energy storage converter through a positive direct current power line and a negative direct current power line; and the hot backup switching battery module is consistent with the working ranges of the voltage and the current of the battery or the battery pack configured by the switchable battery module.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that the switchable battery module mainly comprises: the battery monitoring system comprises a battery monitoring module, a battery monitoring sampling wire harness, a battery pack string reconstruction controller, a battery module monitoring communication wire, a battery monitoring module communication terminal, a battery or a battery pack capable of switching a battery module, a manual switch, a 1 st electric control switch capable of switching the battery module, a bypass electric control switch capable of switching the battery module, a positive terminal capable of switching the battery module and a negative terminal capable of switching the battery module, wherein the battery monitoring module is connected with the battery monitoring module communication terminal and is connected with each battery monomer in the battery or the battery pack capable of switching the battery module through the battery monitoring sampling wire harness; the positive electrode of a battery or a battery pack of the switchable battery module is connected with the positive electrode terminal of the switchable battery module through the 1 st electric control switch of the switchable battery module, the negative electrode of the battery or the battery pack of the switchable battery module is connected with the negative electrode terminal of the switchable battery module through the manual switch, and meanwhile, the positive electrode terminal of the switchable battery module is connected with the negative electrode terminal of the switchable battery module through the bypass electric control switch of the switchable battery module; further, the battery pack string reconfiguration controller is respectively connected with the battery monitoring module, the 1 st electric control switch of the switchable battery module and the bypass electric control switch of the switchable battery module through the battery module monitoring communication line, so as to form the switchable battery module in the on-line hot backup battery module controlled switching battery energy storage system.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that the hot backup switching battery module mainly comprises: a battery monitoring module, a battery monitoring sampling wire harness, a battery pack string reconstruction controller, a battery module monitoring communication line, a battery monitoring module communication terminal, a 1 st battery or battery pack of a hot backup switching battery module, a 2 nd battery or battery pack of the hot backup switching battery module, a 1 st electric control switch of the hot backup switching battery module, a 2 nd switch of the hot backup switching battery module, a 3 rd electric control switch of the hot backup switching battery module, a 4 th electric control switch of the hot backup switching battery module, a positive terminal of the hot backup switching battery module, a negative terminal of the hot backup switching battery module, wherein the plurality of battery monitoring modules are connected with each single battery in the 1 st battery or battery pack of the corresponding hot backup switching battery module and the 2 nd battery or battery pack of the hot backup switching battery module through respective battery monitoring sampling wire harnesses, the plurality of battery monitoring modules are respectively connected with the corresponding battery monitoring module communication terminals; the positive electrode of the 1 st battery or the battery pack of the hot backup switching battery module is connected with the positive electrode terminal of the hot backup switching battery module through the 1 st electric control switch of the hot backup switching battery module, and the negative electrode of the 1 st battery or the battery pack of the hot backup switching battery module is connected with the negative electrode terminal of the hot backup switching battery module through the 2 nd switch of the hot backup switching battery module; meanwhile, the positive electrode of the 2 nd battery or the battery pack of the hot backup switching battery module is connected with the positive electrode terminal of the hot backup switching battery module through a 3 rd electric control switch of the hot backup switching battery module, and the negative electrode of the 2 nd battery or the battery pack of the hot backup switching battery module is connected with the negative electrode terminal of the hot backup switching battery module through a 4 th switch of the hot backup switching battery module; further, the battery pack string reconfiguration controller is connected with the multiple battery monitoring modules and a 1 st electric control switch, a 2 nd switch, a 3 rd electric control switch and a 4 th electric control switch of the hot backup switching battery module respectively through the battery module monitoring communication lines to form the hot backup switching battery module of the online hot backup battery module controlled switching battery energy storage system.
The battery energy storage system based on the controlled switching of the on-line hot backup battery modules is characterized in that a battery energy storage management and control system is respectively connected with corresponding battery monitoring module communication terminals of a plurality of switchable battery modules, corresponding battery monitoring module communication terminals of the plurality of hot backup switching battery modules and corresponding battery pack string reconstruction controllers in the plurality of switchable battery modules and the plurality of hot backup switching battery modules through an energy storage system monitoring bus, and is also connected with an energy storage converter to form a control and management system of the battery energy storage system based on the controlled switching of the on-line hot backup battery modules.
The battery energy storage system based on the controlled switching of the on-line hot backup battery modules is characterized in that a plurality of battery pack string reconstruction controllers are respectively connected with respective switchable battery modules and battery monitoring modules of the hot backup switchable battery modules through respective battery module monitoring communication lines, and are also connected with switchable battery module switch groups and hot backup switchable battery module switch groups in the respective battery modules to form a control path of the reconstructed battery pack strings.
The battery energy storage system based on the controlled switching of the on-line hot backup battery module is characterized in that a switchable battery module switch group is composed of a battery group string reconstruction controller, battery module monitoring communication lines are respectively connected with switchable battery modules, a first switchable battery module electric control switch on the positive electrode side and the negative electrode side of a battery or a battery pack of the switchable battery module and a bypass electric control switch between the positive electrode side and the negative electrode side of the switchable battery module form the switchable battery module switch group controlled to be switched on and off on line and a switching control path.
The battery energy storage system based on-line controlled switching of the hot backup switching battery module is characterized in that a hot backup switching battery module switch group is composed of a battery group string reconstruction controller, and is respectively connected with the hot backup switching battery module through a battery module monitoring communication line, wherein a 1 st battery or battery pack positive electrode of the hot backup switching battery module and a 1 st hot backup switching battery module electric control switch and a 2 nd hot backup switching battery module electric control switch on a negative electrode side, and a 3 rd hot backup switching battery module electric control switch and a 4 th hot backup switching battery module electric control switch which are respectively connected with a 2 nd battery or battery pack positive electrode of the hot backup switching battery module and a negative electrode side form an on-line controlled on-off hot backup switching battery module switch group and a switching control path.
The battery energy storage system based on the controlled switching of the on-line hot backup battery module is characterized in that a battery or a battery pack of the battery module can be switched, a 1 st battery or a battery pack of the hot backup switching battery module and a 2 nd battery or a battery pack of the hot backup switching battery module are connected in series, and each battery monomer of the battery or the battery pack is connected by a battery monitoring module through a battery monitoring sampling wire harness to form a monitoring and communication path for monitoring the voltage and temperature information of the battery monomers in real time on line.
The utility model provides a battery energy storage system based on controlled switching of online hot backup battery module to the inconsistency that lithium cell monomer innate and acquired produced, causes the short slab effect of energy storage system charge-discharge to and the unsafe condition that easily appears overcharging and overdischarging, if can not in time monitor and isolation process unusual battery monomer, will cause bigger malignant accident and the risk of blasting. The utility model discloses a with battery monomer series connection and dispose online monitoring circuit and real-time developments on-off switch group, but constitute battery cluster and the energy storage system of switching battery module and hot backup switching battery module series connection, overcome the prior art product when monitoring to produce unusual battery monomer, can not the developments in time keep apart battery or battery package and the battery module of trouble, but with the whole battery cluster in unusual battery monomer place or the whole disconnection of system, the operation of stopping energy storage unit system and change the defect of maintaining. The utility model discloses when the unusual battery appears, the module of cutting out unusual battery in real time on line and insert the hot backup module on line, guaranteed battery energy storage system's normal continuous operation and provide strong support to electric wire netting stability, improved system utilization ratio and return on investment greatly, be one and guarantee battery energy storage system safety continuous operation, reduce the effective solution of short slab effect of charge-discharge.
Drawings
Fig. 1 is a schematic block diagram of a battery energy storage system based on controlled switching of an online hot-backup battery module.
Detailed Description
As an embodiment, a battery energy storage system based on-line hot backup battery module controlled switching is described with reference to the accompanying drawings, however, the described embodiment is a part of the embodiment, but not a whole embodiment, of the application of the present invention to a battery energy storage system based on-line hot backup battery module controlled switching. 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 techniques and solutions of the present invention are not limited to the content presented in this embodiment.
As shown in fig. 1, a battery energy storage system based on controlled switching of an online thermal backup battery module is characterized in that a plurality of switchable battery modules (10) are connected in series with a plurality of thermal backup switchable battery modules (20) to form a battery pack string (80) meeting the voltage range of the direct current side of an energy storage converter (50), and the battery pack string is connected to the direct current end of the energy storage converter (50), and a battery energy storage management and control system (60) is respectively connected to a battery monitoring module (11), a battery pack string reconfiguration controller (13) and a battery monitoring module (11) through an energy storage system monitoring bus (70) to form a real-time monitoring and energy management path of the battery energy storage system in which the online thermal backup battery module is controlled to switch.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a plurality of switchable battery modules (10) and a plurality of hot backup switchable battery modules (20) are connected in series to form a battery pack string (80), a switchable battery module battery or battery pack (101) is arranged in each switchable battery module (10), two batteries or battery packs including a 1 st battery or battery pack (201) of each hot backup switchable battery module and a 2 nd battery or battery pack (202) of each hot backup switchable battery module are arranged in each hot backup switchable battery module (20), the 1 st battery or battery pack (201) of each hot backup switchable battery module and the 2 nd battery or battery pack (202) of each hot backup switchable battery module are controlled to form one-use or two-use series or two-parallel connection, and the on-line switching of abnormal batteries or battery packs and substitution and the reconfiguration of the battery pack string are realized, and the controlled reconfiguration of the battery pack string in the direct-current side voltage working range of the energy storage converter (50) is met.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a battery string (80) is formed by connecting a plurality of switchable battery modules (10) and a plurality of hot backup switching battery modules (20) in series, and the positive pole and the negative pole of the battery string are respectively connected with the positive pole and the negative pole of the direct current side of an energy storage converter (50) through a positive direct current power line (30) and a negative direct current power line (40); and the working ranges of the voltage and the current of the hot backup switching battery module (20) and the battery or the battery pack configured by the switchable battery module (10) are consistent.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a switchable battery module (10) mainly comprises: the battery monitoring system comprises a battery monitoring module (11), a battery monitoring sampling wire harness (12), a battery pack string reconstruction controller (13), a battery module monitoring communication line (14), a battery monitoring module communication terminal (15), a battery or battery pack (101) of a switchable battery module, a manual switch (111), a 1 st electric control switch (112) of the switchable battery module, a bypass electric control switch (113) of the switchable battery module, a positive terminal (131) of the switchable battery module and a negative terminal (132) of the switchable battery module, wherein the battery monitoring module (11) is connected with the battery monitoring module communication terminal (15), and each battery monomer in the battery or battery pack (101) of the switchable battery module is connected through the battery monitoring sampling wire harness (12); the positive electrode of a battery or a battery pack (101) of the switchable battery module is connected with a positive electrode terminal (131) of the switchable battery module through a 1 st electric control switch (112) of the switchable battery module, the negative electrode of the battery or the battery pack (101) of the switchable battery module is connected with a negative electrode terminal (132) of the switchable battery module through a manual switch (111), and meanwhile, the positive electrode terminal (131) of the switchable battery module is connected with the negative electrode terminal (132) of the switchable battery module through a bypass electric control switch (113) of the switchable battery module; further, the battery pack string reconfiguration controller (13) is respectively connected with the battery monitoring module (11), the 1 st electric control switch (112) of the switchable battery module and the bypass electric control switch (113) of the switchable battery module through the battery module monitoring communication line (14), so as to form the switchable battery module (10) in the battery energy storage system with the controlled switching of the on-line hot backup battery module.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a hot backup switching battery module (20) mainly comprises: the battery pack comprises battery monitoring modules (11), battery monitoring sampling harnesses (12), a battery pack string reconstruction controller (13), battery module monitoring communication lines (14), battery monitoring module communication terminals (15), a 1 st battery or battery pack (201) of a hot backup switching battery module, a 2 nd battery or battery pack (202) of the hot backup switching battery module, a 1 st electric control switch (212) of the hot backup switching battery module, a 2 nd switch (213) of the hot backup switching battery module, a 3 rd electric control switch (222) of the hot backup switching battery module, a 4 th electric control switch (223) of the hot backup switching battery module, a positive terminal (231) of the hot backup switching battery module and a negative terminal (232) of the hot backup switching battery module, wherein the plurality of battery monitoring modules (11) are connected with the 1 st battery or battery pack (201) of the corresponding hot backup switching battery module and the 2 nd battery or battery pack (202) of the hot backup switching battery module through the respective battery monitoring sampling harnesses (12) And the plurality of battery monitoring modules (11) are each connected to a corresponding battery monitoring module communication terminal (15); the positive electrode of the 1 st battery or the battery pack (201) of the hot backup switching battery module is connected with the positive electrode terminal (231) of the hot backup switching battery module through a 1 st electric control switch (212) of the hot backup switching battery module, and the negative electrode of the 1 st battery or the battery pack (201) of the hot backup switching battery module is connected with the negative electrode terminal (232) of the hot backup switching battery module through a 2 nd switch (213) of the hot backup switching battery module; meanwhile, the positive electrode of the 2 nd battery or the battery pack (202) of the hot backup switching battery module is connected with the positive electrode terminal (231) of the hot backup switching battery module through a 3 rd electric control switch (222) of the hot backup switching battery module, and the negative electrode of the 2 nd battery or the battery pack (202) of the hot backup switching battery module is connected with the negative electrode terminal (232) of the hot backup switching battery module through a 4 th switch (223) of the hot backup switching battery module; further, the battery pack string reconfiguration controller (13) is connected with the multiple battery monitoring modules (11), the 1 st electric control switch (212) of the hot backup switching battery module, the 2 nd switch (213) of the hot backup switching battery module, the 3 rd electric control switch (222) of the hot backup switching battery module and the 4 th electric control switch (223) of the hot backup switching battery module through battery module monitoring communication lines (14) respectively, so as to form a hot backup switching battery module (20) of the battery energy storage system with controlled switching of the on-line hot backup switching battery module.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a battery energy storage management and control system (60) is respectively connected with corresponding battery monitoring module communication terminals (15) of a plurality of switchable battery modules (10), corresponding battery monitoring module communication terminals (15) of a plurality of hot backup switching battery modules (20) and corresponding battery pack string reconstruction controllers (13) in the plurality of switchable battery modules (10) and the plurality of hot backup switching battery modules (20) through an energy storage system monitoring bus (70), and is also connected with an energy storage converter (50) to form a control management system of the battery energy storage system with the on-line hot backup battery modules controlled switching.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a plurality of battery pack string reconstruction controllers (13) are respectively connected with respective switchable battery modules (10) and battery monitoring modules (11) of hot backup switchable battery modules (20) through respective battery module monitoring communication lines (14), and simultaneously connected with switchable battery module switch groups and hot backup switchable battery module switch groups in the respective battery modules, when the battery monitoring modules (11) monitor abnormal batteries or battery packs, the battery pack string reconstruction controllers (13) control timely switching-out of the abnormal batteries or battery packs through the switchable battery module switch groups and the hot backup switchable battery module switch groups, and the hot backup switchable battery modules (20) are adjusted and switched in on line and reconstruct battery pack strings (80), and the hot backup switchable battery modules (20) replace the switchable battery modules (10) which are switched out and isolated, the whole battery pack string (80) keeps the required voltage working range, so that the battery energy storage system can normally operate, the batteries or battery packs corresponding to the abnormal battery modules can be cut out and isolated on line, and the battery pack string (80) can be reconstructed in real time.
The battery energy storage system based on the controlled switching of the on-line hot backup battery module is characterized in that a switchable battery module switch group is connected with a switchable battery module (10) through a battery module monitoring communication line (14) by a battery module string reconfiguration controller (13), a battery or battery pack (101) of the switchable battery module is provided with a 1 st electric control switch (112) of the switchable battery module on the positive electrode side and the negative electrode side, and a bypass electric control switch (113) is arranged between the positive electrode and the negative electrode of the switchable battery module (10), so that the switchable battery module switch group controlled to be switched on and off on line and a switching control path are formed.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a hot backup switching battery module switch group is respectively connected with a hot backup switching battery module (20) through a battery module monitoring communication line (14) by a battery pack string reconstruction controller (13), a 1 st battery or a 1 st battery pack of the hot backup switching battery module (201), a 1 st electric control switch (212) of the hot backup switching battery module and a 2 nd electric control switch (213) of the hot backup switching battery module at the positive pole and the negative pole side, and a 3 rd electric control switch (222) of the hot backup switching battery module and a 4 th electric control switch (223) of the hot backup switching battery module which are respectively connected with the 2 nd battery or the positive electrode and the negative electrode of the battery pack (202) of the hot backup switching battery module to form an on-line controlled on-off hot backup switching battery module switch group and a switching control path.
The battery energy storage system based on the on-line hot backup battery module controlled switching is characterized in that a battery or a battery pack (101) of a switchable battery module, a 1 st battery or a battery pack (201) of the hot backup switchable battery module and a 2 nd battery or a battery pack (202) of the hot backup switchable battery module are connected in series, and each battery monomer is connected through a battery monitoring sampling wire harness (12) by a battery monitoring module (2) to form a monitoring and communication path for monitoring the voltage and temperature information of the battery monomers in real time on line.
The utility model provides a battery energy storage system based on controlled switching of online hot backup battery module to the inconsistency that lithium cell monomer innate and acquired produced, causes the short slab effect of energy storage system charge-discharge to and the unsafe condition that easily appears overcharging and overdischarging, if can not in time monitor and isolation process unusual battery monomer, will cause bigger malignant accident and the risk of blasting. The utility model discloses a with battery monomer series connection and dispose online monitoring circuit and real-time developments on-off switch group, but constitute battery cluster and the energy storage system of switching battery module and hot backup switching battery module series connection, overcome the prior art product when monitoring to produce unusual battery monomer, can not the developments in time keep apart battery or battery package and the battery module of trouble, but with the whole battery cluster in unusual battery monomer place or the whole disconnection of system, the operation of stopping energy storage unit system and change the defect of maintaining. The utility model discloses when unusual battery appearing, real-time online surely goes out the module of unusual battery and inserts the hot backup module on line, has guaranteed battery energy storage system's normal continuous operation and has provided the powerful support to electric wire netting stability, has improved system utilization rate and investment income greatly, is one and guarantees battery energy storage system safety continuous operation, reduces the effective solution of short slab effect of charge-discharge.
Claims (10)
1. A battery energy storage system based on-line hot backup battery module controlled switching is characterized in that a plurality of switchable battery modules are connected in series with a plurality of hot backup switching battery modules to form a battery pack string meeting the working range of the direct-current side voltage of an energy storage converter and are connected to the direct-current end of the energy storage converter; furthermore, the battery energy storage management and control system is respectively connected with the battery monitoring module, the battery pack string reconfiguration controller and the battery monitoring module through an energy storage system monitoring bus to form a real-time monitoring and energy management path of the battery energy storage system with controlled switching of the on-line hot backup battery module.
2. The battery energy storage system based on the on-line hot backup battery module controlled switching as claimed in claim 1, wherein a plurality of switchable battery modules and a plurality of hot backup switching battery modules are connected in series to form a battery string, a switchable battery module battery or battery pack is provided in the switchable battery module, a hot backup switching battery module is provided with a 1 st battery or battery pack and a hot backup switching battery module 2 nd battery or battery pack, and the 1 st battery or battery pack and the hot backup switching battery module 2 nd battery or battery pack are controlled to form a one-use or two-series or two-parallel connection.
3. The battery energy storage system based on the on-line hot backup battery module controlled switching as claimed in claim 1, wherein a battery string is formed by connecting a plurality of switchable battery modules and a plurality of hot backup switching battery modules in series, and the positive pole and the negative pole of the battery string are respectively connected with the positive pole and the negative pole of the direct current side of the energy storage converter through a positive direct current power line and a negative direct current power line; and the hot backup switching battery module is consistent with the working ranges of the voltage and the current of the battery or the battery pack configured by the switchable battery module.
4. The battery energy storage system based on the controlled switching of the on-line hot backup battery module as claimed in claim 1, wherein the switchable battery module mainly comprises: the battery monitoring system comprises a battery monitoring module, a battery monitoring sampling wire harness, a battery pack string reconstruction controller, a battery module monitoring communication wire, a battery monitoring module communication terminal, a battery or a battery pack capable of switching a battery module, a manual switch, a 1 st electric control switch capable of switching the battery module, a bypass electric control switch capable of switching the battery module, a positive terminal capable of switching the battery module and a negative terminal capable of switching the battery module, wherein the battery monitoring module is connected with the battery monitoring module communication terminal and is connected with each battery monomer in the battery or the battery pack capable of switching the battery module through the battery monitoring sampling wire harness; the positive electrode of a battery or a battery pack of the switchable battery module is connected with the positive electrode terminal of the switchable battery module through the 1 st electric control switch of the switchable battery module, the negative electrode of the battery or the battery pack of the switchable battery module is connected with the negative electrode terminal of the switchable battery module through the manual switch, and meanwhile, the positive electrode terminal of the switchable battery module is connected with the negative electrode terminal of the switchable battery module through the bypass electric control switch of the switchable battery module; furthermore, the battery pack string reconfiguration controller is respectively connected with the battery monitoring module, the 1 st electric control switch of the switchable battery module and the bypass electric control switch of the switchable battery module through the battery module monitoring communication line, so as to form the switchable battery module in the battery energy storage system with the on-line hot backup battery module controlled to be switched.
5. The battery energy storage system based on the on-line hot backup battery module controlled switching of claim 1, wherein the hot backup switching battery module mainly comprises: a battery monitoring module, a battery monitoring sampling wire harness, a battery pack string reconstruction controller, a battery module monitoring communication line, a battery monitoring module communication terminal, a 1 st battery or battery pack of a hot backup switching battery module, a 2 nd battery or battery pack of the hot backup switching battery module, a 1 st electric control switch of the hot backup switching battery module, a 2 nd switch of the hot backup switching battery module, a 3 rd electric control switch of the hot backup switching battery module, a 4 th electric control switch of the hot backup switching battery module, a positive terminal of the hot backup switching battery module, a negative terminal of the hot backup switching battery module, wherein the plurality of battery monitoring modules are connected with each single battery in the 1 st battery or battery pack of the corresponding hot backup switching battery module and the 2 nd battery or battery pack of the hot backup switching battery module through respective battery monitoring sampling wire harnesses, the plurality of battery monitoring modules are respectively connected with the corresponding battery monitoring module communication terminals; the positive electrode of the 1 st battery or the battery pack of the hot backup switching battery module is connected with the positive electrode terminal of the hot backup switching battery module through the 1 st electric control switch of the hot backup switching battery module, and the negative electrode of the 1 st battery or the battery pack of the hot backup switching battery module is connected with the negative electrode terminal of the hot backup switching battery module through the 2 nd switch of the hot backup switching battery module; meanwhile, the positive electrode of the 2 nd battery or the battery pack of the hot backup switching battery module is connected with the positive electrode terminal of the hot backup switching battery module through a 3 rd electric control switch of the hot backup switching battery module, and the negative electrode of the 2 nd battery or the battery pack of the hot backup switching battery module is connected with the negative electrode terminal of the hot backup switching battery module through a 4 th switch of the hot backup switching battery module; further, the battery pack string reconfiguration controller is connected with the multiple battery monitoring modules and a 1 st electric control switch, a 2 nd switch, a 3 rd electric control switch and a 4 th electric control switch of the hot backup switching battery module respectively through the battery module monitoring communication lines to form the hot backup switching battery module of the online hot backup battery module controlled switching battery energy storage system.
6. The battery energy storage system based on the on-line hot backup battery module controlled switching according to claim 1, characterized in that the battery energy storage management and control system is connected with the corresponding battery monitoring module communication terminals of the plurality of switchable battery modules, the corresponding battery monitoring module communication terminals of the plurality of hot backup switching battery modules, and the corresponding battery string reconfiguration controllers in the plurality of switchable battery modules and the plurality of hot backup switching battery modules through the energy storage system monitoring bus, and is also connected with the energy storage converter to form a control and management system of the battery energy storage system with the on-line hot backup battery module controlled switching.
7. The battery energy storage system based on the on-line hot-backup battery module controlled switching as claimed in claim 1, wherein the plurality of battery string reconfiguration controllers are respectively connected to the respective switchable battery modules and the battery monitoring modules of the hot-backup switchable battery modules through the respective battery module monitoring communication lines, and are also connected to the switchable battery module switch groups and the hot-backup switchable battery module switch groups in the respective battery modules to form a control path for reconfiguring the battery strings.
8. The battery energy storage system based on the controlled switching of the on-line hot backup battery module according to claim 7, characterized in that the switchable battery module switch group is composed of a battery group string reconfiguration controller, the switchable battery modules are respectively connected through the battery module monitoring communication lines, a first switchable battery module electric control switch on the positive electrode and negative electrode side of the battery or battery pack of the switchable battery module, and a bypass electric control switch between the positive electrode and negative electrode of the switchable battery module constitute the switchable battery module switch group controlled to be switched on and off on line and a switching control path.
9. The battery energy storage system based on the on-line hot-backup battery module controlled switching according to claim 7, wherein the hot-backup switching battery module switch group is composed of a battery string reconfiguration controller, and is respectively connected with the hot-backup switching battery module through a battery module monitoring communication line, a hot-backup switching battery module 1 st electric control switch and a hot-backup switching battery module 2 nd electric control switch on the positive electrode and the negative electrode side of a battery or a battery pack of the hot-backup switching battery module 1 st battery or a battery pack positive electrode and the negative electrode side of the hot-backup switching battery module 2 nd electric control switch, and a hot-backup switching battery module 3 rd electric control switch and a hot-backup switching battery module 4 th electric control switch on the positive electrode and the negative electrode side of the hot-backup switching battery module are respectively connected, so as to form an on-line controlled hot-backup switching battery module switch group and a switching control path.
10. The on-line hot-backup battery module controlled switching-based battery energy storage system according to claim 2, 3, 4, 5, 8 or 9, wherein a battery or a battery pack of a switchable battery module, a 1 st battery or a battery pack of a hot-backup switching battery module, and a 2 nd battery or a battery pack of a hot-backup switching battery module are connected in series, and a battery monitoring module is connected with each battery cell through a battery monitoring sampling wire harness to form a monitoring and communication path for monitoring the voltage and temperature information of the battery cells in real time on line.
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