Intelligent power distribution device integrated with energy management

Abstract

The utility model relates to intelligent power distribution device technical field discloses an integrated energy management's intelligent power distribution device, including power distribution device ontology, its inside integrated EMS, meter and power distribution assembly and fast plug assembly, fast plug assembly includes incoming line static plug -in and incoming line dynamic plug -in, and the incoming line static plug -in sets up in power distribution device ontology end, and its installation in the incoming line dynamic plug -in of power distribution cabinet, makes power distribution cabinet can realize fast pull -in, alternating -current circuit breaker, cooperation current transformer, air switch and socket, intermediate relay and alternating -current port constitute protection circuit and power distribution circuit, in the utility model, through the integration of alternating -current side line, EMS, communication interface and electric meter, intermediate relay and the like component, realize power transmission, monitoring, control and communication integration, and physical space intensive design reduces wiring complexity, reduces line fault risk, EMS forms intelligent management closed loop, and the standardization function unit cooperates modularization design, improves system compatibility and expansibility.

Description

Technical Field

[0001] This utility model relates to the field of intelligent power distribution device technology, and in particular to an intelligent power distribution device with integrated energy management. Background Technology

[0002] In the field of energy storage systems, with the popularization of smart grids and distributed energy, the demand for integrated and intelligent management of power distribution devices is increasing. The core of an integrated energy management intelligent power distribution device lies in achieving safe and reliable operation and efficient energy dispatch of the energy storage system through the high integration of electrical functional modules and precise control of energy flow. Such devices need to simultaneously meet multiple functions such as power transmission, data monitoring, charge and discharge control, and remote communication. Therefore, how to achieve collaborative operation of various modules within a limited space while ensuring ease of maintenance has become a key direction for technological upgrading in the industry.

[0003] Traditional energy storage and distribution devices typically employ a distributed architecture, independently deploying circuit breakers, energy management systems (EMS), metering modules, and communication modules in different areas of the energy storage cabinet. These modules are connected via exposed cables, and mechanically rely on independent mounting brackets and terminals. The underlying technology is primarily based on discrete control logic—the power transmission path and data monitoring path are separated. The EMS only obtains voltage or current data from a single node through a wired communication interface, lacking real-time awareness of the entire power supply chain. The timeliness and completeness of data uploaded to the energy storage system are limited. During installation, each module's electrical wiring must be individually connected, a cumbersome process prone to poor contact due to wiring errors. Maintenance requires a complete power outage to troubleshoot each module, making live operation difficult.

[0004] In existing power distribution systems, the distributed layout leads to complex and intertwined internal wiring. Exposed connections are prone to contact failures due to vibration, oxidation, and other factors, increasing the overall operational risk of the system. Furthermore, because the EMS (Energy Management System) cannot acquire real-time power data (such as charging / discharging power and dynamic changes in charge) for the entire AC circuit, and lacks an integrated communication interface for rapid data upload and command response, the energy storage system struggles to achieve a closed-loop "monitoring-control-feedback" management system, resulting in low efficiency in intelligent scheduling. In addition, the independent installation of each functional module necessitates a redesign of the wiring layout when expanding the system, resulting in insufficient compatibility and scalability, failing to meet the modular upgrade requirements of energy storage systems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an intelligent power distribution device with integrated energy management, which aims to improve the problem that the distributed layout of existing power distribution devices leads to complex and intertwined internal wiring, and exposed wires are prone to contact failure due to vibration, oxidation and other factors, which increases the overall operational risk of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent power distribution device integrating energy management, which is suitable for use inside a power distribution cabinet, comprising:

[0007] The main body of the power distribution device integrates an EMS, a metering unit, power distribution components, and quick-connect components.

[0008] The quick-connect assembly includes a stationary inlet plug and a moving inlet plug. The stationary inlet plug is located at the end of the power distribution device body, and the moving inlet plug is installed in the power distribution cabinet, so that the power distribution cabinet can be quickly plugged in and out.

[0009] AC circuit breakers, together with current transformers, circuit breakers and sockets, intermediate relays and AC ports, form a protection circuit and a power distribution circuit.

[0010] 24V port for connecting external devices;

[0011] Grounding point to achieve grounding of the enclosure.

[0012] Furthermore, the static input connector is fixed to the sheet metal on the rear side of the energy storage cabinet and connected to an external power source, and forms a plug-in connection with the moving input connector.

[0013] Furthermore, the incoming line moving plug is connected to the AC circuit breaker via the internal busbar, and the AC circuit breaker handle extends to the control panel of the enclosure.

[0014] Furthermore, the current transformer is connected to a metering meter, and the data is processed by an EMS and displayed on the human-machine interface of the energy storage cabinet.

[0015] Furthermore, the AC port is connected to the load via AC terminals, and all internal cables of the power distribution device are connected via adapter terminal blocks.

[0016] Furthermore, the EMS integrates a communication interface to monitor current transformer and meter data in real time, and controls intermediate relays to achieve AC circuit breaker tripping, external power management, and energy storage cabinet door status monitoring.

[0017] Furthermore, the meter is a bidirectional energy meter that displays charging and discharging power, cumulative power consumption, and system status parameters and data in real time.

[0018] Furthermore, the AC electrical box adopts a modular design, and the separation distance between the incoming moving plug and the incoming stationary plug is not less than 50mm.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, by integrating AC side lines, EMS, communication interfaces, electricity meters, intermediate relays and other components, the power transmission, monitoring, control and communication are integrated. The compact physical space design reduces wiring complexity and lowers the risk of line faults. The EMS collects data in real time through current transformers and electricity meters and uploads it through the communication interface to form an intelligent management closed loop. Standardized functional units combined with modular design improve system compatibility and scalability.

[0021] 2. In this utility model, the AC electrical box is fixed to the energy storage cabinet by the rear sheet metal and static plugs. The quick-connect design of the moving plugs enables the simultaneous installation of electrical and mechanical connections, simplifying the construction process. During maintenance, the electrical box can be quickly plugged and unplugged without disconnecting wires, improving efficiency. External wiring is concentrated in the terminal block, with a clear layout and easy maintenance. The modular design allows components such as circuit breakers and EMS to be replaced independently without system readjustment, ensuring convenient maintenance and operational reliability. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an intelligent power distribution device with integrated energy management proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of a smart power distribution device with integrated energy management proposed in this utility model.

[0024] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0026] Figure 5 for Figure 2 Enlarged view of point C in the middle.

[0027] Legend:

[0028] 1. Power distribution unit body; 2. Incoming line static connector; 3. Incoming line moving connector; 4. Current transformer; 5. AC circuit breaker; 6. EMS; 7. AC circuit breaker handle; 8. Meter; 9. Circuit breaker and socket; 10. Adapter terminal block; 11. Intermediate relay; 12. AC port; 13. Grounding point; 14. AC terminal block; 15. 24V port. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-5 This utility model provides an embodiment of an intelligent power distribution device with integrated energy management, which is suitable for use inside a power distribution cabinet and includes:

[0031] The main body of the power distribution device 1 integrates EMS6, which combines data from current transformer 4, meter 8, etc., and calculates parameters such as charging and discharging power, power, and energy efficiency in real time. The meter 8, power distribution components, and quick-connect components are also included. The meter 8 directly displays parameters such as charging and discharging power, voltage, and frequency of the energy storage cabinet.

[0032] The quick-connect assembly includes a static inlet plug 2 and a moving inlet plug 3. The static inlet plug 2 serves as the static access terminal for external power supply and forms an electrical connection with the moving inlet plug 3 of the electrical box through a plug-in structure. The moving inlet plug 3 is installed in the AC electrical box and is quickly connected to the static inlet plug 2 to introduce power. The static inlet plug 2 is located at the end of the power distribution device body 1 and the moving inlet plug 3 is installed in the power distribution cabinet, so that the power distribution cabinet can be quickly plugged in and unplugged.

[0033] The AC circuit breaker 5 is connected in series with the power input line as the main circuit switch to realize overload and short circuit protection. It works with the current transformer 4, which is connected in the main circuit to collect current signals in real time with an accuracy of ±1.5%, providing the basis for calculating the charging and discharging power of the EMS6. The circuit breaker and socket 9, intermediate relay 11 and AC port 12 form a protection and power distribution circuit.

[0034] 24V port 15, for connecting external devices;

[0035] Grounding point 13 grounds the enclosure; the static incoming line connector 2 is fixed to the sheet metal at the rear of the energy storage cabinet and connected to the external power supply, forming a plug-in connection with the moving incoming line connector 3; the moving incoming line connector 3 is connected to the AC circuit breaker 5 via the internal busbar; the AC circuit breaker handle 7 extends to the cabinet's operating panel; the current transformer 4 is connected to the meter 8, and the data is processed by the EMS 6 and displayed on the energy storage cabinet's human-machine interface; the AC port 12 is connected to the load via the AC terminal block 14; all internal cables of the power distribution equipment are transferred via the adapter terminal block 10, which centrally manages the internal cables. The wiring and EMS6 integrated communication interface monitor the data of current transformer 4 and meter 8 in real time, and control the intermediate relay 11 to realize AC circuit breaker tripping, external power management, and energy storage cabinet door status monitoring. The intermediate relay 11 receives EMS6 commands and controls the AC circuit breaker trip actuator to realize the on / off of the charging and discharging circuit. The meter 8 is a bidirectional energy meter that displays charging and discharging power, cumulative power and system status parameters in real time. The data and AC electrical box adopt a modular design, and the separation distance between the incoming line moving plug 3 and the incoming line stationary plug 2 is not less than 50mm.

[0036] Specifically, the external power supply is connected via the static input plug 2 fixed to the energy storage cabinet, and quickly connected to the dynamic input plug 3 of the AC electrical box. This quick-connect structure supports rapid insertion and removal, and adopts an anti-misinsertion design and arc-extinguishing cover to ensure safe disconnection. After passing through the AC circuit breaker 5, the electrical energy enters the system through the current transformer 4, which monitors the charging and discharging power in real time. The meter 8 synchronously displays parameters such as current and voltage, and transmits them to the human-machine interface via RS485. The EMS6, as the control core, integrates the data from the current transformer 4 and the meter, generates a control strategy through a built-in algorithm, and communicates with the PC. The S-communication switches between charging and discharging modes. Simultaneously, the EMS6 encrypts and uploads data to the energy storage system or cloud via an integrated communication interface, supporting remote monitoring and 12 months of historical data storage. For load connection, the adapter terminal block 10 adopts a strong and weak current separation design to suppress electromagnetic interference. The device adopts modular packaging: components such as the AC circuit breaker 5 and EMS6 are fixed with screws; the enclosure is made of cold-rolled steel plate. The entire device achieves safe and reliable power management and convenient maintenance through quick-connect connection, modular design, and intelligent closed-loop control, meeting the efficient dispatching needs of distributed energy scenarios.

[0037] Working principle: When the intelligent power distribution device with integrated energy management is required, the external power supply is connected through the static input plug 2 fixed to the energy storage cabinet and quickly connected to the dynamic input plug 3 on the electrical box, supporting quick plug-in and plug-out maintenance of the electrical box. The AC power enters the system through the AC circuit breaker 5 and the current transformer 4. The EMS6 monitors the power data in real time, such as charging and discharging power and power consumption, and displays it intuitively through the meter 8. The EMS6 communicates with the PCS based on the monitoring data to realize intelligent charging and discharging management. At the same time, it uploads data to the energy storage system or cloud platform through the integrated communication interface. The external load is connected through the AC port 12 and the adapter terminal block 10. The 24V port 15 is used for power supply of external devices. The modular design ensures safety, reliability and convenient maintenance.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intelligent power distribution device integrating energy management, characterized in that: This intelligent power distribution device is suitable for use inside power distribution cabinets and includes: The main body of the power distribution device (1) integrates an EMS (6), a meter (8), power distribution components, and quick-connect components. The quick-connect assembly includes a stationary inlet plug (2) and a moving inlet plug (3). The stationary inlet plug (2) is located at the end of the main body (1) of the power distribution device, and the moving inlet plug (3) is installed in the power distribution cabinet, so that the power distribution cabinet can be quickly plugged in and out. The AC circuit breaker (5), together with the current transformer (4), the circuit breaker and socket (9), the intermediate relay (11) and the AC port (12), form a protection circuit and a power distribution circuit; 24V port (15), for connecting external devices; Grounding point (13) is used to ground the enclosure; AC electrical box.

2. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The static input connector (2) is fixed on the sheet metal at the rear of the energy storage cabinet and connected to the external power supply, and forms a plug-in fit with the dynamic input connector (3).

3. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The incoming line moving plug (3) is connected to the AC circuit breaker (5) through the busbar inside the box, and the AC circuit breaker handle (7) extends to the box operation panel.

4. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The current transformer (4) is connected to the meter (8), and the data is processed by the EMS (6) and displayed on the human-machine interface of the energy storage cabinet.

5. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The AC port (12) is connected to the load through the AC terminal block (14), and all internal cables of the power distribution device are transferred through the adapter terminal block (10).

6. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The EMS (6) integrates a communication interface to monitor the data of the current transformer (4) and the meter (8) in real time, and controls the intermediate relay (11) to realize the tripping of the AC circuit breaker, external power management, and energy storage cabinet door status monitoring.

7. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The meter (8) is a bidirectional energy meter that displays charging and discharging power, cumulative power consumption, and system status parameters and data in real time.

8. The intelligent power distribution device with integrated energy management according to claim 1, characterized in that: The AC electrical box adopts a modular design, and the separation distance between the incoming moving plug (3) and the incoming stationary plug (2) is not less than 50mm.

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