CN219287197U - Multi-source energy storage external data center rack power supply and power protection system - Google Patents
Multi-source energy storage external data center rack power supply and power protection system Download PDFInfo
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Abstract
The utility model relates to a power supply and electricity protection system for a multi-source energy storage external data center rack, which adopts an alternating current-direct current converter and a plurality of controlled direct current energy storage units which are arranged outside a machine room to supply multi-path multi-power supply complementary safe and reliable power for the rack of the data center machine room through a direct current bus; when the commercial power is normally supplied, power is supplied to the server, the data processing equipment and the battery or the battery pack, and when the commercial power fails and the power supply is stopped, stable power is supplied to the data center rack through the direct current converter of the constant voltage source; when the battery is abnormal, the battery or the battery pack is controlled to cut out a reconstructed battery pack cluster, and the voltage and the power of the controlled direct current energy storage unit are controlled, so that the consistency of the electric quantity of the battery pack cluster is ensured to meet the requirement of safe operation; the energy storage, power supply and electricity protection system is arranged outside the data center machine room, so that the occupied space of the machine room is reduced, the heat dissipation of power supply equipment and the energy consumption for temperature regulation are reduced, and particularly the risk of damage to the machine room equipment caused by abnormal energy storage equipment is effectively prevented.
Description
Technical Field
The utility model belongs to the technical field of data center power supply, and particularly relates to a multi-source energy storage external data center rack power supply and protection system.
Background
With the development and the increasing demand of information communication technology and big data processing technology, in recent years, the construction and operation of global data centers has rapidly developed, such as industries of telecommunication, finance, internet business and the like, and a large number of host managed data centers for providing services for users of small and medium enterprises.
In order to meet the continuous operation requirement of information and data processing equipment, the problems of power supply reliability, environment regulation and control energy consumption and equipment occupation of machine room space are the problems to be solved urgently by data center operators. At present, the safe power supply and the electricity protection of a data center mainly depend on an Uninterruptible Power Supply (UPS), and the UPS is generally arranged in a machine room and even in a rack for installing data processing equipment, and the UPS mainly has the following problems:
1) The traditional UPS is arranged in a machine room of the data center, and power conversion from alternating current commercial power to direct current and power conversion from direct current to direct current are needed for supplying power to a server for more than two times, so that not only is energy consumption increased, but also the machine room rack space is occupied, and the investment and energy consumption of environmental control are increased;
2) The traditional UPS adopts a fixed connection mode to configure battery energy storage, so that manual regular maintenance is needed, when a battery or a battery pack fails in operation, the failed battery or the failed battery pack cannot be cut out in time, and a set of UPS system is usually stopped and switched to a standby system for power supply due to one failed battery, so that the maintenance cost is high, and great potential safety hazards exist.
In order to solve the above-mentioned drawbacks and problems, industry engineers continuously research and practice, and propose some solutions; for example, the patent number of the utility model patent "distributed battery power supply device and method" published by the national intellectual property office is CN102842936, and the technical scheme (hereinafter referred to as the prior art scheme) is described in the prior art scheme: the direct current power supply unit (102) is respectively connected with the server (101) and the battery module (103) on the same rack (104), and … adjusts the output electric quantity of the battery pack by controlling the combination mode of each battery in the battery pack and controls the charging and discharging of the battery pack; the prior art scheme is recorded as follows: the direct current power supply unit (102) comprises an alternating current-direct current converter, a transformer, a change-over switch, a processor for controlling the state of the change-over switch and a mains supply interruption detector (…) connected with the processor which are connected in sequence; description of the utility model in paragraph [0045 ]: the … distributed battery power supply device comprises a direct current power supply unit 102 and a battery module 103 which are arranged on each rack 101, wherein the direct current power supply unit 102 is respectively connected with the server 101 and the battery module 103 through a direct current bus 106, and when the commercial power supply is normal, the direct current power supply unit 102 converts alternating current commercial power into direct current to supply power to the server and charges the battery module 103; when the mains supply is interrupted, the battery module 103 in each rack autonomously judges that the power is lost and supplies power to the server 101; each battery module 103 communicates with the server 101 via a communication line 107, and any one of the battery modules 103 can supply power to the server 101 on any rack. "description of the same [0048 ]: "… K1 is closed and K2 is empty, the server 101 is powered by mains supply; when K1 is closed and K2 is in communication with contact 1, server 101 is powered by mains and battery module 103 is charged; when K1 is open and K2 is in communication with contact 1, the server is powered by battery module 103. "description of the same [0047 ]: the execution unit is connected with the battery pack and the direct current power supply unit, and the output electric quantity of the battery pack is adjusted by controlling the combination mode of the batteries, and the charge and discharge of the battery pack are controlled, and the step 2 of [0052 ]: when the mains supply is interrupted, the mains supply interruption detector sends a mains supply 'off' signal to the processor, the processor controls the switch K1 to be opened and the switch K2 to be communicated with the contact 1, the server 101 is powered by the battery modules 103, and meanwhile, under the cooperative optimization of the management modules, any one of the battery modules 103 can supply power to the server 101 on any rack 104 in a direct current manner. The step e described in "[0071] is specifically: the battery module (103) on the frame j, j epsilon (theta-psi) detects the capacity of each single battery in the battery pack in real time through a measuring unit in the battery management system, and the processing unit controls the opening and closing combination of the controllable switch 6 in the battery pack switch array shown in the attached drawing of the specification in the prior art scheme according to the capacity of xj and each single battery, and controls the power supply in the combination mode of the battery pack in the dynamic recombination battery module (103). "
As described above, and as can be seen with reference to the drawings in the description of the prior art, the prior art has obvious drawbacks and disadvantages, mainly:
1) The transformer is arranged between the DC side of the AC-DC converter and the DC load, and the operation principle and characteristics of the power and electric system are not met, so that the transformer is a major defect of the prior art scheme;
2) When the commercial power is interrupted, the server 101 is powered by the battery module 103 by adopting the battery pack through the direct-current bus and the direct-current power supply unit, and as is well known, the voltage range of the battery module is determined by the voltage working range of each battery unit and is changed along with the change of the electric quantity, the battery module directly supplies power for the server, and the requirement of the server for stable voltage source power supply cannot be met, so that the method is a major defect of the prior art;
3) When the mains supply is interrupted, after detection and judgment are carried out by the mains supply interruption detector, a mains supply interruption signal is sent to the processor, and the processor controls the switch to select and switch to the battery pack for supplying power, so that the timeliness is difficult to ensure the uninterrupted power supply requirement of the data processing equipment, and the risk of failure and shutdown of the server of the data processing equipment caused by instant power interruption during switching exists;
4) The prior art scheme is recorded as follows: "description of the same [0045] section: the … distributed battery power supply device comprises a direct current power supply unit 102 and a battery module 103 which are arranged on each rack 101, wherein the direct current power supply unit 102 is respectively connected with the server 101 and the battery module 103 through a direct current bus 106, and …'; the direct current power supply unit 102 and the battery module 103 are arranged in a rack of a machine room, so that a large amount of precious machine space is occupied, and energy consumption and heat of the rack are increased;
5) "any one of the battery modules 103 is capable of supplying dc power to the server 101 on any of the racks 104. "all battery modules are connected in parallel on the same DC bus with reference to the accompanying drawings; the battery module is subjected to regulation reconstruction and combination of batteries in the battery module through electric quantity calculation, the total number of the batteries of the battery module is fixed (as shown in an instruction drawing in the prior art), the number of the batteries in a battery pack string can only be reduced through switch regulation, the number of the batteries connected in series in a certain battery module is reduced, the voltage of the battery pack end of the battery module is reduced, and the voltages of a plurality of battery modules connected in parallel on a direct current bus are inconsistent, so that circulation and unsafe hidden trouble are caused.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art and the scheme, the utility model provides a multi-source energy storage external data center rack power supply and electricity protection system, which is characterized in that commercial power sequentially provides direct current for a direct current bus through an electric control switch and a protection circuit which are arranged outside a machine room and an alternating current-direct current converter, and the direct current bus is respectively connected with corresponding servers and data processing equipment in a plurality of racks of a data center, and a plurality of controlled direct current energy storage units which are arranged outside the machine room; meanwhile, the energy management and control system of the power supply device is respectively connected with each server and the data processing equipment, each controlled direct current energy storage unit, an alternating current power supply electric control switch and an alternating current-direct current converter through a system communication line to form an energy management and control system of the multi-source energy storage external data center power supply and power protection system; when the commercial power supplies power normally, the commercial power supplies direct current to the server and the data processing equipment through the alternating current-direct current converter, and the energy control system of the power supply device controls the charging power of each controlled direct current energy storage unit; when the mains supply fails and stops supplying power, the electric control switch of the alternating current power supply is disconnected, and each controlled direct current energy storage unit automatically responds to the load power consumption requirement to provide corresponding direct current power.
The power supply and protection system for the multi-source energy storage external data center rack is characterized in that when the commercial power is abnormal or fails and direct current can not be provided for a server and data processing equipment through an alternating current-direct current converter, each controlled direct current energy storage unit operated in a constant voltage source mode automatically responds, and direct current power is provided for each server and data processing equipment on the rack in a data center machine room through a direct current bus.
The power supply and electricity protection system for the multi-source energy storage external data center rack is characterized in that when an nth battery or a battery pack is abnormal in a controlled direct current energy storage unit, an energy management and control system sends a control instruction to a battery pack cluster energy storage unit controller of a corresponding controlled direct current energy storage unit, and the corresponding nth battery or battery pack is cut out to reconstruct the battery pack cluster, specifically: the battery string switch and the protection circuit of the corresponding controlled direct current energy storage unit are controlled to be opened, then the corresponding nth battery or battery pack switch of the nth battery or battery pack (122) is controlled to be opened in sequence, the nth bypass switch is controlled to be closed and conducted, and the battery string switch and the protection circuit of the corresponding controlled direct current energy storage unit are controlled to be closed.
The multi-source energy storage external data center rack power supply and electricity protection system is characterized in that the controlled direct current energy storage unit is formed by connecting a plurality of batteries or battery packs in series to form a battery pack cluster, the 1 st battery or battery pack in the battery pack cluster is connected with a 1 st battery or battery pack switch in series, the 2 nd battery or battery pack is connected with a 2 nd battery or battery pack switch in series, the nth battery or battery pack is connected with the nth battery or battery pack switch in series, and each battery or battery pack is connected with a bypass switch in parallel, namely; the 1 st battery or battery pack is connected with the 1 st bypass switch in parallel, the 2 nd battery or battery pack is connected with the 2 nd bypass switch in parallel, and the n th battery or battery pack is connected with the n th bypass switch in parallel to form a reconfigurable battery pack string cluster;
the battery pack cluster positive electrode is connected with the positive electrode of the bidirectional direct current converter through a battery pack cluster switch and a protection circuit, and the battery pack cluster negative electrode is directly connected with the negative electrode of the bidirectional direct current converter; meanwhile, the battery pack cluster energy storage unit controller is respectively connected with each battery or battery pack, a 1 st battery or battery pack switch, a 2 nd battery or battery pack switch, an nth battery or battery pack switch, a 1 st bypass switch, a 2 nd bypass switch, an nth bypass switch, a bidirectional direct current converter, a battery pack cluster switch and a protection circuit through an energy storage unit communication line to form a control path of a controlled direct current energy storage unit and a battery energy storage unit system.
The power supply and protection system for the multi-source energy storage external data center rack is characterized in that each battery or battery pack is composed of more than one battery unit in series connection, and each battery unit is connected with a battery management circuit; and the battery management circuit is connected with the battery pack cluster energy storage unit controller through an energy storage unit communication line.
The multi-source energy storage external data center rack power supply and electricity protection system is characterized in that a primary side of the bidirectional direct current converter is connected with a battery pack cluster, and a secondary side of the bidirectional direct current converter is connected with a direct current bus through a secondary positive terminal and a negative terminal; the bidirectional direct current converter takes a constant voltage source mode as a default operation mode, and receives a power instruction sent by an energy management and control system through a battery pack cluster energy storage unit controller to charge or discharge a corresponding battery or battery pack.
The utility model relates to a power supply and electricity protection system for a multi-source energy storage external data center rack, which adopts an alternating current-direct current converter and a plurality of controlled direct current energy storage units which are arranged outside a machine room to provide multi-path multi-power supply complementary safe and reliable power supply and electricity protection for the rack of the data center machine room through a direct current bus; when the commercial power is normally supplied, power is supplied to the server, the data processing equipment and the battery or the battery pack, and when the commercial power fails and the power supply is stopped, stable power is supplied to the data center rack through the direct current converter of the constant voltage source; when the battery is abnormal, the battery or the battery pack is controlled to cut out a reconstructed battery pack cluster, and the consistency of the electric quantity of the battery pack cluster is ensured to meet the requirement of safe operation by controlling the voltage and the power of the controlled direct current energy storage unit; the energy storage, power supply and electricity retention system is arranged outside the data center machine room, so that the occupied space of the machine room is reduced, the energy consumption of heat dissipation and temperature regulation of power supply equipment is reduced, and particularly, the risk of damage to the machine room equipment caused by abnormal energy storage equipment is effectively prevented; not only saving the cost, but also greatly improving the safety and timeliness; thereby overcoming the defects and the shortcomings of the prior art scheme and providing an effective way for supplying power to the rack of the data center.
Drawings
FIG. 1 is a schematic diagram of a multi-source energy storage external data center rack power supply and protection system.
Fig. 2 is a schematic block diagram of the same controlled dc energy storage unit.
Detailed Description
As an example, a multi-source energy storage external data center rack power supply and protection system is described with reference to the accompanying drawings, but the described embodiments are some, but not all, embodiments of the application of the present utility model to a multi-source energy storage external data center rack power supply and protection system. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model; the technique and scheme of the present utility model are not limited to those given in the present embodiment example.
As shown in fig. 1, a multi-source energy-storage external data center rack power supply and electricity protection system is characterized in that a commercial power (19) sequentially provides direct current for a direct current bus (16) through an electric control switch and protection circuit (17) and an alternating current-direct current converter (18) which are arranged outside a machine room, and the direct current bus (16) is respectively connected with corresponding servers and data processing equipment (11) in a plurality of racks (13) of a data center, and a plurality of controlled direct current energy storage units (12) which are arranged outside the machine room; meanwhile, an energy management and control system (15) of the power supply device is respectively connected with each server and each data processing device (11), each controlled direct current energy storage unit (12), an alternating current power supply electric control switch (17) and an alternating current-direct current converter (18) through a system communication line (14) to form an energy management and control system of the multi-source energy storage external data center power supply and electricity protection system; when the commercial power (19) supplies power normally, the commercial power (19) supplies direct current to the server and the data processing equipment (11) through an alternating current-direct current converter (18), and the power supply device energy management control system (15) controls the charging power of each controlled direct current energy storage unit (12); when the mains supply (19) fails to stop supplying power, the alternating current power supply electric control switch (17) is disconnected, and the controlled direct current energy storage unit (12) automatically responds to the load power consumption requirement to provide corresponding direct current power.
As shown in fig. 2, the multi-source energy-storage external data center rack power supply and power protection system is characterized in that the controlled direct current energy storage unit (12) is formed by connecting a plurality of batteries or battery packs (122) in series to form a battery pack cluster (120), the 1 st battery or battery pack (122) in the battery pack cluster (120) is connected in series with a 1 st battery or battery pack switch (K11), the 2 nd battery or battery pack (122) is connected in series with a 2 nd battery or battery pack switch (K21), the nth battery or battery pack (122) is connected in series with an nth battery or battery pack switch (Kn 1), and each battery or battery pack (122) is connected in parallel with a bypass switch, namely; the 1 st battery or battery pack (122) is connected with the 1 st bypass switch (K12), the 2 nd battery or battery pack (122) is connected with the 2 nd bypass switch (K22), the n-th battery or battery pack (122) is connected with the n-th bypass switch (Kn 2) in parallel to form a reconfigurable battery pack string cluster;
the battery pack cluster positive electrode (126) is connected with the positive electrode of the bidirectional direct current converter (121) through a battery pack cluster switch and a protection circuit (123), and the battery pack cluster negative electrode (127) is directly connected with the negative electrode of the bidirectional direct current converter (121); meanwhile, a battery pack cluster energy storage unit controller (125) is respectively connected with each battery or battery pack (122), a 1 st battery or battery pack switch (K11), a 2 nd battery or battery pack switch (K21), an nth battery or battery pack switch (Kn 1), a 1 st bypass switch (K12), a 2 nd bypass switch (K22), an nth bypass switch (Kn 2), a bidirectional direct current converter (121), a battery pack cluster switch and a protection circuit (123) through an energy storage unit communication line (124), so as to form a control path of the controlled direct current energy storage unit (12) and a battery energy storage unit system.
The multi-source energy storage external data center rack power supply and electricity protection system is characterized in that each battery or battery pack (122) is formed by connecting more than one battery unit in series and connecting each battery unit with a battery management circuit; and is connected with the battery pack cluster energy storage unit controller (125) through the energy storage unit communication line (124) by the battery management circuit.
The multi-source energy storage external data center rack power supply and power protection system is characterized in that a primary side of a bidirectional direct current converter (121) is connected with a battery pack cluster (120), and a secondary side of the bidirectional direct current converter (121) is connected with a direct current bus (16) through a secondary positive terminal (128) and a negative terminal (129); the bidirectional direct current converter (121) takes a constant voltage source mode as a default operation mode, and receives a power instruction sent by the energy management and control system (15) through the battery pack cluster energy storage unit controller (125) to charge or discharge a corresponding battery or battery pack (122).
The power supply and protection system for the multi-source energy storage external data center rack is characterized in that when the commercial power (19) is abnormal or fails to supply direct current to the servers and the data processing equipment (11) through an alternating current-direct current converter (18), each controlled direct current energy storage unit (12) operated in a constant voltage source mode automatically responds, and direct current power is supplied to each server and the data processing equipment (11) on the rack in a data center machine room through a direct current bus (16).
The power supply and electricity protection system for the multi-source energy storage external data center rack is characterized in that when an nth battery or a battery pack (122) is abnormal in a controlled direct current energy storage unit (12), an energy management and control system (15) sends a control instruction to a battery pack cluster energy storage unit controller (125) of the corresponding controlled direct current energy storage unit (12), and the corresponding nth battery or the corresponding battery pack (122) is cut out to reconstruct a battery pack cluster (120), wherein the power supply and electricity protection system is specifically as follows: the battery string switch and the protection circuit (123) of the corresponding controlled direct current energy storage unit (12) are controlled to be disconnected, then the nth battery or the battery pack switch (Kn 1) corresponding to the nth battery or the battery pack (122) is controlled to be disconnected in sequence, the nth bypass switch (Kn 2) is controlled to be closed and conducted, and the battery string switch and the protection circuit (123) of the corresponding controlled direct current energy storage unit (12) are controlled to be closed.
The utility model relates to a multi-source energy storage external data center rack power supply electricity-protecting system, which adopts an alternating current-direct current converter (18) and a plurality of controlled direct current energy storage units (12) which are arranged outside a machine room to provide multi-path multi-power supply complementary safe and reliable power supply electricity-protecting for racks of the data center machine room through a direct current bus (16); when the commercial power (19) supplies power normally, power is supplied to the server, the data processing equipment (11) and the battery or the battery pack (122), and when the commercial power (19) fails and stops supplying power, stable power is supplied to the data center rack through the direct current converter of the constant voltage source; when the battery is abnormal, the battery or the battery pack is controlled to cut out a reconstructed battery pack cluster, and the voltage and the power of the controlled direct current energy storage unit (12) are controlled, so that the consistency of the electric quantity of the battery pack cluster is ensured to meet the requirement of safe operation; the energy storage, power supply and electricity retention system is arranged outside the data center machine room, so that the occupied space of the machine room is reduced, the energy consumption of heat dissipation and temperature regulation of power supply equipment is reduced, and particularly, the risk of damage to the machine room equipment caused by abnormal energy storage equipment is effectively prevented; not only saving the cost, but also greatly improving the safety and timeliness; thereby overcoming the defects and the shortcomings of the prior art scheme and providing an effective way for supplying power to the rack of the data center.
Specific embodiments are given above, but the utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various modifications, arrangements, formulas, and parameters can be devised in accordance with the teachings of the present utility model without undue effort, and variations, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and conceptual framework of the utility model.
Claims (6)
1. A multi-source energy-storage external data center rack power supply and electricity protection system is characterized in that commercial power sequentially provides direct current for a direct current bus through an electric control switch, a protection circuit and an alternating current-direct current converter which are arranged outside a machine room, and the direct current bus is respectively connected with corresponding servers and data processing equipment in a plurality of racks of a data center, and a plurality of controlled direct current energy storage units which are arranged outside the machine room; meanwhile, the energy management and control system of the power supply device is respectively connected with each server and the data processing equipment, each controlled direct current energy storage unit, an alternating current power supply electric control switch and an alternating current-direct current converter through a system communication line to form an energy management and control system of the multi-source energy storage external data center power supply and power protection system; when the commercial power supplies power normally, the commercial power supplies direct current to the server and the data processing equipment through the alternating current-direct current converter, and the energy control system of the power supply device controls the charging power of each controlled direct current energy storage unit; when the mains supply fails and stops supplying power, the electric control switch of the alternating current power supply is disconnected, and each controlled direct current energy storage unit automatically responds to the load power consumption requirement to provide corresponding direct current power.
2. The power supply and protection system for a rack of a multi-source energy storage external data center according to claim 1, wherein when abnormal or faulty mains supply can not provide direct current for a server and data processing equipment through an ac-dc converter, each controlled dc energy storage unit operated in a constant voltage source mode automatically responds and provides direct current power for each server and data processing equipment on the rack in a machine room of the data center through a dc bus.
3. The power supply and protection system for a multi-source energy storage external data center rack according to claim 1, wherein when an nth battery or a battery pack is abnormal in the controlled direct current energy storage unit, the energy management and control system sends a control instruction to the battery pack cluster energy storage unit controller of the corresponding controlled direct current energy storage unit, and cuts out the corresponding nth battery or battery pack to reconstruct the battery pack cluster, specifically: the battery string switch and the protection circuit of the corresponding controlled direct current energy storage unit are controlled to be opened, then the corresponding nth battery or battery pack switch of the nth battery or battery pack (122) is controlled to be opened in sequence, the nth bypass switch is controlled to be closed and conducted, and the battery string switch and the protection circuit of the corresponding controlled direct current energy storage unit are controlled to be closed.
4. The multi-source energy storage external connection type data center rack power supply and power protection system according to claim 1, wherein the controlled direct current energy storage unit is formed by connecting a plurality of batteries or battery packs in series to form a battery pack cluster, and a 1 st battery or battery pack in the battery pack cluster is connected with a 1 st battery or battery pack switch in series, a 2 nd battery or battery pack is connected with a 2 nd battery or battery pack switch in series, an nth battery or battery pack is connected with an nth battery or battery pack switch in series, and each battery or battery pack is connected with a bypass switch in parallel, namely; the 1 st battery or battery pack is connected with the 1 st bypass switch in parallel, the 2 nd battery or battery pack is connected with the 2 nd bypass switch in parallel, and the n th battery or battery pack is connected with the n th bypass switch in parallel to form a reconfigurable battery pack string cluster;
the battery pack cluster positive electrode is connected with the positive electrode of the bidirectional direct current converter through a battery pack cluster switch and a protection circuit, and the battery pack cluster negative electrode is directly connected with the negative electrode of the bidirectional direct current converter; meanwhile, the battery pack cluster energy storage unit controller is respectively connected with each battery or battery pack, a 1 st battery or battery pack switch, a 2 nd battery or battery pack switch, an nth battery or battery pack switch, a 1 st bypass switch, a 2 nd bypass switch, an nth bypass switch, a bidirectional direct current converter, a battery pack cluster switch and a protection circuit through an energy storage unit communication line to form a control path of a controlled direct current energy storage unit and a battery energy storage unit system.
5. The multi-source energy storage external connection type data center rack power supply and protection system according to claim 4, wherein each battery or battery pack is composed of more than one battery unit connected in series and each battery unit is connected with a battery management circuit; and the battery management circuit is connected with the battery pack cluster energy storage unit controller through an energy storage unit communication line.
6. The multi-source energy storage external connection type data center rack power supply and protection system according to claim 4, wherein the primary side of the bidirectional direct current converter is connected with a battery pack cluster, and the secondary side of the bidirectional direct current converter is connected with a direct current bus through a secondary positive terminal and a negative terminal; the bidirectional direct current converter takes a constant voltage source mode as a default operation mode, and receives a power instruction sent by an energy management and control system through a battery pack cluster energy storage unit controller to charge or discharge a corresponding battery or battery pack.
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