CN214124920U

CN214124920U - Container energy storage equipment using lithium battery

Info

Publication number: CN214124920U
Application number: CN202021941743.6U
Authority: CN
Inventors: 李倩; 施邦佳; 盛德涛; 杨轲; 马进
Original assignee: CHANGHUA ELECTRIC EQUIPMENT GROUP CO LTD
Current assignee: Wuhan Zhongke Changhua New Energy Technology Co.,Ltd.
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-09-03
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses an use lithium electricity battery's container energy storage equipment, including the container and locate the battery system on the container infrabasal plate, still include photovoltaic system, photovoltaic system is connected with the battery system electricity, photovoltaic system sets up in the container top. The utility model has the characteristics of practice thrift air conditioning system's input cost, photovoltaic system electricity generation can be given the load power supply simultaneously, practices thrift energy consumption and running cost, can wide application in energy storage system technical field.

Description

Container energy storage equipment using lithium battery

Technical Field

The utility model relates to an energy storage system technical field especially relates to an use container energy storage equipment of lithium electricity battery.

Background

With the deep promotion of clean low-carbon transformation of energy, various novel energy forms are continuously emerging. Among them, energy storage is an important means to improve the flexibility, economy and safety of conventional power systems. Currently, for the power supply side, after the energy storage system is connected, the continuous increase of the peak-to-valley difference of the power system increases the demand of the system balance on flexible resources. For the demand side, the load demand continuously increases during the peak period of power utilization, and the existing flexible resources are difficult to meet the potential demand of flexible operation of the power grid. Therefore, the flexible resource supplement of the energy storage system is needed, the regulation and control operation of the power system is participated, and the safe and stable operation of the power system is supported. From the current practice, the container energy storage cooperation operation is widely applied and mainly used for capacity expansion and peak clipping and valley filling, the capacity expansion meets the requirement of the operation of newly-added or power consumption peak equipment, the peak clipping and valley filling can save the cost of industrial power consumption, and meanwhile, the pressure of the power consumption peak period on a power system is reduced. Meanwhile, the container energy storage system can select a B-level battery, a retired power battery or a stock battery, so that the cost is reduced, and the echelon utilization of the retired battery is solved.

The container energy storage system of current lithium electricity has obtained the wide application, but initial stage input cost is too high, and the container is installed outdoors simultaneously, need be equipped with air conditioning system for guaranteeing battery system's normal operating container, and the strong condition of illumination and battery system self generate heat and make air conditioning system open the operation, energy consumption and cost increase.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide an use lithium electricity battery's container energy storage equipment, make its input cost that can practice thrift air conditioning system, photovoltaic system electricity generation can be given the load power supply simultaneously, practices thrift energy consumption and running cost.

The utility model provides a pair of use lithium electricity battery's container energy storage equipment, including the container and locate the battery system on the container infrabasal plate, still include photovoltaic system, photovoltaic system is connected with the battery system electricity, photovoltaic system sets up in the container top.

In the technical scheme, the energy storage bidirectional inverter PCS is further included; the photovoltaic system comprises a photovoltaic component, a controller DC/DC and an inverter UI, wherein the photovoltaic component, the controller DC/DC and the inverter UI are sequentially connected in series, and the power output end of the inverter UI is connected with the alternating current end of the energy storage bidirectional inverter PCS and connected with a power grid or a load; the battery system comprises a plurality of battery modules which are electrically connected, the positive electrode of the battery system is connected with the positive electrode of the direct-current end of the energy storage bidirectional inverter PCS, and the negative electrode of the battery system is connected with the negative electrode of the direct-current end of the energy storage bidirectional inverter PCS.

In the technical scheme, the energy storage bidirectional inverter power supply further comprises a high-voltage box, wherein the high-voltage box comprises a battery management system main control module BCU, a relay KJ and a shunt RW, one end of the relay KJ is connected with the negative electrode of the direct-current end of the energy storage bidirectional inverter PCS (3), the other end of the relay KJ is connected with one end of the shunt RW, the other end of the shunt RW is connected with the negative electrode of the battery system, the energy input end of the battery management system main control module BCU is connected with a direct-current power supply, the control end of the battery management system main control module BCU is connected with the two ends of the relay KJ respectively, and the signal acquisition end of the battery management system main control module BCU is connected with one end of the shunt RW and is connected with the negative electrode of the battery system.

In the above technical solution, the battery system further includes a battery management system slave control module BMU corresponding to each battery module, an energy input end of each battery management system slave control module BMU is connected to an energy output end of the corresponding battery module, a signal end of each battery management system slave control module BMU is connected to a signal end of the corresponding battery module, and each battery management system slave control module BMU is connected to a signal end of the high-voltage box battery management system master control module BCU through a CAN BUS and is connected to the signal end of the slave control module BMU through a CAN BUS.

In the technical scheme, the energy storage bidirectional inverter comprises an energy management system EMS, wherein a signal end of the energy management system EMS is connected with a signal end of an energy storage bidirectional inverter PCS.

In the above technical solution, the energy management system EMS further includes an uninterruptible power supply UPS for supplying power thereto, and an output end of the uninterruptible power supply UPS is further connected to an input end of the battery management system main control module BCU.

In the above technical solution, the container further comprises a fan system, a signal end of the fan system is connected with a signal end of the energy management system EMS, an input end of the fan system is connected with a power grid, and a fan of the fan system is arranged on the inner side of the top of the container.

In the technical scheme, the high-voltage box further comprises a fuse FU, one end of the fuse FU is connected with the positive electrode of the direct-current end of the energy storage bidirectional inverter PCS, and the other end of the fuse FU is connected with the negative electrode of the battery system.

In the technical scheme, the energy management system further comprises a monitoring system, wherein the input end of the monitoring system is connected with a power grid, and the signal end of the monitoring system is connected with the signal end of an Energy Management System (EMS).

In the technical scheme, the intelligent electric energy meter comprises a fire fighting system, an illuminating system and an intelligent electric meter, wherein the input end of the fire fighting system is connected with an electric network, and the signal end of the fire fighting system is connected with the signal end of an Energy Management System (EMS); the input end of the lighting system is connected with a power grid, and the signal end of the lighting system is connected with the signal end of an Energy Management System (EMS); one end of the intelligent electric meter is connected with the UI of the inverter and is connected with a power grid or a load, and the other end of the intelligent electric meter is connected with the alternating current end of the PCS of the energy storage bidirectional inverter; the battery system is arranged at one end of the container, the energy storage bidirectional inverter PCS and the energy management system EMS are arranged at the other end of the container, and the fire fighting system and the high-voltage box are positioned in the middle of the container; the energy input end of the battery management system main control module BCU is connected with an uninterruptible power supply UPS outputting 12/24V; the battery system comprises 17 electrically connected battery modules and 17 battery management system slave control modules BMU.

The utility model discloses use lithium electricity battery's container energy storage equipment has following beneficial effect:

1. the photovoltaic module is arranged on the top of the container, so that the effect of shading sun, preventing sunshine and absorbing a light source can be achieved, and the internal environment temperature of the container is reduced to a certain extent; 2. because the photovoltaic module is used for shading the sun, the inside of the container can be directly matched with a fan system to replace an air conditioning system, and the early investment cost and the operation energy consumption cost are reduced; 3. the photovoltaic system can directly supply power for loads to use, so that the industrial power consumption cost is reduced; 4. the battery management system main control module BCU low-voltage power supply of the high-voltage box is directly powered by the UPS of the EMS system, so that the cost and the installation space are saved.

Drawings

Fig. 1 is a schematic view of the overall structure of the container energy storage device using a lithium battery according to the present invention;

fig. 2 is the utility model discloses use lithium electricity battery's container energy storage equipment's circuit schematic.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the examples should not be construed as limiting the present invention.

Referring to fig. 1 to 2, the utility model discloses use container energy storage equipment of lithium electricity battery, including container 2 and locate the battery system 1 on the container 2 infrabasal plate, still include photovoltaic system 8, photovoltaic system 8 is connected with battery system 1 electricity, photovoltaic system 8 sets up in container 2 top.

The container energy storage device using the lithium battery also comprises an energy storage bidirectional inverter PCS 3; the photovoltaic system 8 comprises a photovoltaic component 8.1, a controller DC/DC and an inverter UI, the photovoltaic component 8.1, the controller DC/DC and the inverter UI are sequentially connected in series, and the power output end of the inverter UI is connected with the alternating current end of the energy storage bidirectional inverter PCS3 and connected with a power grid or a load; the battery system 1 comprises a plurality of battery modules 1.1 which are electrically connected, the anode of the battery system 1 is connected with the anode of the direct-current end of the energy storage bidirectional inverter PCS3, and the cathode of the battery system 1 is connected with the cathode of the direct-current end of the energy storage bidirectional inverter PCS 3.

The utility model discloses use lithium electricity battery's container energy storage equipment still includes high-pressure box 6, high-pressure box 6 includes battery management system host module BCU, relay KJ and shunt RW, relay KJ one end links to each other with energy storage bidirectional inverter PCS 3's direct current end negative pole, the relay KJ other end links to each other with the one end of shunt RW, the other end of shunt RW links to each other with battery system 1's negative pole, battery management system host module BCU energy input end links to each other with DC power supply, battery management system host module BCU's control end links to each other with relay KJ both ends respectively, battery management system host module BCU's signal acquisition end links to each other with shunt RW one end and links to each other with battery system 1's negative pole.

The battery system 1 further comprises a battery management system slave control module BMU corresponding to each battery module 1.1, the energy input end of each battery management system slave control module BMU is connected with the energy output end of the corresponding battery module 1.1, the signal end of each battery management system slave control module BMU is connected with the signal end of the corresponding battery module 1.1, and the signal ends of the battery management systems slave control module BMUs are connected through CAN BUS BUS communication and connected with the signal end of the high-voltage box 6 battery management system master control module BCU through CAN BUS BUS.

The utility model discloses use lithium electricity battery's container energy storage equipment still includes energy management system EMS4, energy management system EMS 4's signal end links to each other with energy storage bidirectional inverter PCS 3's signal end.

The energy management system EMS4 is also provided with an uninterruptible power supply UPS for supplying power to the energy management system EMS, and the output end of the uninterruptible power supply UPS is also connected with the energy input end of the battery management system main control module BCU.

The utility model discloses use lithium electricity battery's container energy storage equipment still includes fan system 7, fan system 7's signal end links to each other with energy management system EMS 4's signal end, fan system 7's input links to each other with the electric wire netting, fan system 7's fan sets up in container 2 top inboard.

The high-voltage box 6 further comprises a fuse FU, one end of the fuse FU is connected with the positive electrode of the direct-current end of the energy storage bidirectional inverter PCS3, and the other end of the fuse FU is connected with the negative electrode of the battery system 1.

The utility model discloses use lithium electricity battery's container energy storage equipment still includes monitored control system 9, monitored control system 9's input links to each other with the electric wire netting, monitored control system 9's signal end links to each other with energy management system EMS 4's signal end.

The container energy storage device using the lithium battery also comprises a fire-fighting system 5, a lighting system 10 and an intelligent ammeter 11, wherein the input end of the fire-fighting system 5 is connected with a power grid, and the signal end of the fire-fighting system 5 is connected with the signal end of an energy management system EMS 4; the input end of the lighting system 10 is connected with a power grid, and the signal end of the lighting system 10 is connected with the signal end of an energy management system EMS 4; one end of the intelligent electric meter 11 is connected with the inverter UI and is connected with a power grid or a load, and the other end of the intelligent electric meter 11 is connected with the alternating current end of the energy storage bidirectional inverter PCS 3;

the battery system 1 is arranged at one end of the container 2, the energy storage bidirectional inverter PCS3 and the energy management system EMS4 are arranged at the other end of the container 2, and the fire fighting system 5 and the high-voltage box 6 are positioned in the middle of the container 2;

the energy input end of the battery management system main control module BCU is connected with an uninterruptible power supply UPS outputting 12/24V;

the battery system 1 comprises 17 electrically connected battery modules 1.1 and 17 battery management system slave modules BMU.

The utility model discloses a container system and photovoltaic system 8, container system comprises battery system 1, container 2, energy management system EMS4, energy storage bidirectional inverter PCS3, smart electric meter 11, monitored control system 10, fire extinguishing systems 5, fan system 7, high-pressure box 6, lighting system 10. The interfaces of the container system are 380V alternating current power grid and loads.

The container system discharges at the peak of power consumption for providing power for the equipment in the industrial park, the battery system 1 is generally charged at night in the low-ebb period of power consumption, and the industrial power consumption cost is saved by peak clipping and valley filling.

The photovoltaic system 8 consists of photovoltaic modules 8.1, a controller DC/DC and an inverter UI. Install in the roof of container 2, photovoltaic system 8 directly supplies power for the load power under the condition that has illumination, practices thrift the power consumption cost. Meanwhile, the photovoltaic module 8.1 is arranged on the top of the container 2, and the sun-shading and sun-blocking light source can reduce the operating temperature inside the container 2 to a certain extent, so that the fan system 7 is adopted inside the container 2 to meet the requirement of the battery system 1 on the appropriate discharge operating temperature condition.

The battery system 1 is composed of a battery core, a structural member, a connecting copper bar, a collection wire harness and a battery management system slave control module BMU. The battery system 1 is responsible for storing and releasing electric energy, and the battery management system slave control module BMU monitors battery information and related fault alarm to ensure the normal operation of the system.

The container 2 is used for bearing, installing and fixing all the subsystems in the container, and can meet certain waterproof, dustproof and heat-insulating performances, so that the normal operation of the system is ensured.

The energy management system EMS4 provides data management, monitoring, control and optimization for the microgrid control center, and ensures stable and efficient operation of the energy storage system. The energy management system EMS4 provides power and voltage set points for the energy controller inside the utility model, ensuring that the system load demand is met; the container energy storage equipment using the lithium battery meets the operation protocol with the main network system; energy consumption and system loss are minimized as much as possible; the utility model provides an island operation and reclosing's logic and control method under the system fault condition contains and off-grid switching unit. The energy management system 4 is powered by an uninterruptible power supply UPS, and simultaneously, the power supply provides a low-voltage power supply for a battery management system main control module BCU of the power cabinet.

The energy storage bidirectional inverter PCS3 inverts the direct current on the battery system 1 side into alternating current to supply power to the load side in the discharging stage, and rectifies the alternating current on the grid side into direct current to charge the battery system 1 in the charging stage. Meanwhile, the power of the power supply module can be balanced and distributed, the stable operation of a power grid system is ensured, the short-time impact resistance is provided, and smooth power supply is realized.

The intelligent electric meter 11 is used for collecting the electricity consumption and the electric quantity, and collecting, metering and transmitting original electric energy data.

The monitoring system 9 is used for real-time information display and historical data viewing of an energy management system EMS 4.

The fire extinguishing system 5 is an intelligent automatic fire extinguishing device, when a fire detector detects a fire signal, the alarm bell and the audible and visual alarm are controlled to be started, the fire extinguishing device can be manually started or automatically started, the opening of a protection area is closed in a linkage mode after the signal is detected, the fire extinguishing device is started in a fire extinguishing mode, and the fire extinguishing device is automatically started after the set delay time is reached.

The fan system 7 is used for dissipating heat inside the container 2, so that the battery system 1 can work in a proper temperature range, and the fan is controlled to be turned on or off according to the temperature condition detected by a temperature sensor (not shown in the figure). Compared with an air conditioning system, the system can save early investment cost and later energy consumption operation cost.

The high-voltage box 6 comprises a battery management system main control module BCU, a relay KJ, a fuse FU and a shunt RW. The battery management system main control module BCU low-voltage power supply is provided by a UPS of the energy management system EMS4, and the battery management system main control module BCU monitors voltage and temperature and has fault diagnosis and protection functions. The current divider RW is used for current detection, the relay KJ is used for attracting and disconnecting a battery system loop, and the fuse FU is used for short-circuit protection of the battery loop.

The lighting system 10 is mainly used for lighting the inside of the container 2 and providing lighting for installation and later-stage overhaul and maintenance.

The utility model discloses technical principle as follows:

as shown in fig. 1, the structure of the present invention is: the electric quantity, the capacity and the voltage grade of the battery system 1 can be designed and matched according to actual requirements. The battery system 1 comprises a battery management system BMS (composed of a battery management system main control module BCU and a battery management system slave control module BMU), monitors the voltage, temperature and current information of the battery module 1.1 in real time, and has the functions of overcharge, overdischarge protection, fault diagnosis and alarm. The fixed bolster of battery box body can select for use square pipe, fixes on container 2's bottom plate through the welded mode, container 2 guarantees to have sufficient intensity to support the whole weight of battery package and fixed bolster. The size of the container 2 is selected according to the rated electric quantity and the space size of the battery system 1, standard containers 2 with different sizes can be selected, and the internal structure is arranged according to actual requirements. An energy management system EMS4, an energy storage bidirectional inverter PCS3, a smart electric meter 11, a monitoring system 9, a fire fighting system 5, a fan system 7, a high-voltage box 6 and a lighting system 10 are all installed in the container 2, and the safety and normal operation of the whole energy storage system are guaranteed. Photovoltaic system 8 contains photovoltaic module 8.1, controller DC/DC and inverter UI, and photovoltaic module 8.1 installs in 2 roof of container, plays sun-proof effect of sunshade, can generate electricity simultaneously and supply the load to use after the inverter UI contravariant. The stand takes root fixedly at 2 roof of container, and the support is built with the welding of zinc-plated square tube, and photovoltaic module 8.1 is kept flat on the support adhesive tape surface, uses curtain structure to glue fixedly, and is waterproof and absorb light energy.

As shown in fig. 2, the functional block diagram of the present invention: the battery system 1 selects 17 standard battery modules 1.1 to be connected in series to form a battery cluster, each battery module 1.1 is provided with a battery management system slave control module BMU, monitors the monomer voltage and the temperature of the battery module 1.1 in real time, communicates with a battery management system master control module BCU in a high-voltage box 6 through a CAN BUS BUS in real time, reports battery information, and protects and gives a fault alarm to the battery system 1. The external interface of the battery system 1 is directly connected with a 380V alternating current power grid, and the photovoltaic system 8 generates power and directly merges the power grid into the power grid after passing through the inverter UI for load use. The direct current of the battery system 1 is reversely converted into alternating current through the energy storage bidirectional inverter PCS3 according to the load power in the peak period of power utilization, then is discharged outwards for the use of a load side, and stops discharging after reaching a set cut-off condition; at the valley of power consumption, the commercial power rectifies the alternating current into direct current through the energy storage bidirectional inverter PCS3, charges the battery system 1, and stops after the battery system is fully charged. The utility model discloses use lithium electricity battery's container energy storage equipment peak clipping to fill millet, practice thrift the industrial electricity cost. Under the condition of commercial power decompression, can utilize the utility model discloses use lithium battery's container energy storage equipment to supply power for the load, maintain the basic operation of load side equipment. Energy management system EMS4 is the utility model discloses an important component, energy management system EMS4 is responsible for system operation condition real time monitoring, handles and saves the database (not shown in the figure) to important historical data. The energy storage bidirectional inverter PCS3 receives a command of an energy management system EMS4 and performs grid-connection and grid-disconnection operations; the energy management system EMS4 monitors relevant parameters of the energy storage bidirectional inverter PCS3, monitors relevant parameters of a direct current side and an alternating current side in real time, and acquires daily and accumulated charging and discharging electric quantity data. The energy management system EMS4 is responsible for receiving and monitoring the voltage, temperature, current, SOC, SOH and other common information of the battery management system BMS, and reporting an alarm when the battery system 1 is abnormal, so as to protect the use safety of the battery. The energy management system EMS4 monitors information of voltage, current, power, etc. of the load at the same time, and monitors the lighting system 10 and the fire fighting system 5, and the energy management system EMS4 is configured with a UPS providing a low voltage power supply of its own and a battery system. The subsystems of the fan system 7 are responsible for receiving and executing auxiliary system related instructions including on and off states, feedback of temperature conditions within the container 2, etc. All systems in the container 2 are coordinated and matched, so that the safe and stable operation of the whole equipment is guaranteed.

The utility model relates to an use lithium electricity battery's container energy storage equipment can ensure the steady operation of system, has following advantage:

the method has the advantages that: the photovoltaic module 8.1 is arranged at the top of the container 2 to play a role in shading sun and absorbing solar energy, and can reduce the temperature inside the container 2 to a certain extent;

the advantages are two: due to the installation of the photovoltaic system 8, the fan system 7 can be selected to replace an air conditioning system, so that the investment cost for installing an industrial air conditioner in the early stage and the later-stage energy consumption operation cost can be effectively reduced;

the advantages are three: the power generation of the photovoltaic system 8 can directly supply power to a load through an inverter UI, so that the electric charge of industrial power utilization is reduced, the generated energy of the photovoltaic system 8 is calculated as Ep-HA PAZ K, wherein Ep-is the power generation amount of the internet (kW.h), HA-is the annual total irradiation amount of solar energy on the horizontal plane (kW.h/m 2), PAZ-system installation capacity (kW), K-comprehensive efficiency coefficient, and the value of K is generally 75-85%, and the saved electric charge cost can be calculated according to the actual installed capacity according to the condition;

the advantages are four: the low-voltage power supply of the battery management system main control module BCU of the battery management system BMS in the high-voltage box 6 is directly supplied with power by the UPS of the energy management system EMS4, so that the cost and the installation space are saved.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Those not described in detail in this specification are within the skill of the art.

Claims

1. The utility model provides an use lithium electricity battery's container energy storage equipment, includes container (2) and locates battery system (1) on container (2) infrabasal plate, its characterized in that: the container is characterized by further comprising a photovoltaic system (8), wherein the photovoltaic system (8) is electrically connected with the battery system (1), the photovoltaic system (8) is arranged at the top of the container (2), and the container also comprises an energy storage bidirectional inverter PCS (3); the photovoltaic system (8) comprises a photovoltaic component (8.1), a controller DC/DC and an inverter UI, the photovoltaic component (8.1), the controller DC/DC and the inverter UI are sequentially connected in series, and the power output end of the inverter UI is connected with the alternating current end of the energy storage bidirectional inverter PCS (3) and connected with a power grid or a load; the battery system (1) comprises a plurality of battery modules (1.1) which are electrically connected, the anode of the battery system (1) is connected with the anode of the direct current end of the energy storage bidirectional inverter PCS (3), and the cathode of the battery system (1) is connected with the cathode of the direct current end of the energy storage bidirectional inverter PCS (3).

2. The container energy storage device using lithium-ion batteries according to claim 1, characterized in that: still include high-voltage box (6), high-voltage box (6) include battery management system main control module BCU, relay KJ and shunt RW, relay KJ one end links to each other with the direct current end negative pole of energy storage bidirectional inverter PCS (3), the relay KJ other end links to each other with the one end of shunt RW, the other end of shunt RW links to each other with the negative pole of battery system (1), battery management system main control module BCU energy input end links to each other with DC power supply, battery management system main control module BCU's control end links to each other with relay KJ both ends respectively, battery management system main control module BCU's signal acquisition end links to each other with shunt RW one end, and links to each other with the negative pole of battery system (1).

3. The container energy storage device using lithium-ion batteries according to claim 2, characterized in that: the battery system (1) further comprises a battery management system slave control module BMU corresponding to each battery module (1.1), the energy input end of each battery management system slave control module BMU is connected with the energy output end of the corresponding battery module (1.1), the signal end of each battery management system slave control module BMU is connected with the signal end of the corresponding battery module (1.1), and the signal ends of the battery management systems slave control modules BMU are connected through CAN BUS BUS communication and connected with the signal end of the battery management system master control module BCU of the high-voltage box (6) through the CAN BUS BUS.

4. The lithium-ion battery-using container energy storage device of claim 3, wherein: the energy storage bidirectional inverter power supply system further comprises an energy management system EMS (4), and a signal end of the energy management system EMS (4) is connected with a signal end of the energy storage bidirectional inverter PCS (3).

5. The lithium-ion battery-using container energy storage device according to claim 4, wherein: the energy management system EMS (4) is also provided with an uninterrupted power supply UPS supplying power to the energy management system EMS, and the output end of the uninterrupted power supply UPS is also connected with the input end of a battery management system main control module BCU.

6. The lithium-ion battery-using container energy storage device according to claim 5, wherein: the container energy management system is characterized by further comprising a fan system (7), wherein a signal end of the fan system (7) is connected with a signal end of the energy management system EMS (4), an input end of the fan system (7) is connected with a power grid, and a fan of the fan system (7) is arranged on the inner side of the top of the container (2).

7. The lithium-ion battery-using container energy storage device according to claim 6, wherein: the high-voltage box (6) further comprises a fuse FU, one end of the fuse FU is connected with the positive electrode of the direct-current end of the energy storage bidirectional inverter PCS (3), and the other end of the fuse FU is connected with the negative electrode of the battery system (1).

8. The lithium-ion battery-using container energy storage device according to claim 7, wherein: the energy management system further comprises a monitoring system (9), wherein the input end of the monitoring system (9) is connected with a power grid, and the signal end of the monitoring system (9) is connected with the signal end of the energy management system EMS (4).

9. The lithium-ion battery-using container energy storage device of claim 8, wherein: the intelligent energy management system is characterized by further comprising a fire fighting system (5), a lighting system (10) and an intelligent electric meter (11), wherein the input end of the fire fighting system (5) is connected with a power grid, and the signal end of the fire fighting system (5) is connected with the signal end of the energy management system EMS (4); the input end of the lighting system (10) is connected with a power grid, and the signal end of the lighting system (10) is connected with the signal end of an energy management system EMS (4); one end of the intelligent electric meter (11) is connected with the UI of the inverter and is connected with a power grid or a load, and the other end of the intelligent electric meter (11) is connected with the alternating current end of the energy storage bidirectional inverter PCS (3);

the battery system (1) is arranged at one end of the container (2), the energy storage bidirectional inverter PCS (3) and the energy management system EMS (4) are arranged at the other end of the container (2), and the fire protection system (5) and the high-voltage box (6) are positioned in the middle of the container (2);

the battery system (1) comprises 17 electrically connected battery modules (1.1) and 17 battery management system slave control modules BMU.