Intelligent lighting system architecture adopting high-voltage direct current for centralized power supply

Abstract

The utility model relates to the technical field of lighting equipment, in particular to an intelligent lighting system architecture adopting high-voltage direct-current centralized power supply, which comprises an HVDC power supply conversion unit, an intelligent lighting control unit, an emergency power supply energy storage unit, distributed lighting nodes, a communication network and a direct-current power grid, the HVDC power supply conversion unit supplies power to the distributed lighting nodes, the emergency power supply energy storage unit and the intelligent lighting control unit through a DC power grid. According to the utility model, the defects in energy efficiency, stability and control flexibility of the traditional AC lighting system can be overcome, and more efficient, more stable and more intelligent lighting can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, and in particular to an intelligent lighting system architecture adopting high-voltage direct current centralized power supply. Background Art

[0002] The lighting system is a system based on providing lighting, including natural light lighting system, artificial lighting system and the combination of the two. It is a distributed wireless telemetry, remote control and telecommunication control system composed of computers, wireless communication data transmission, computer intelligent information processing, spread spectrum power carrier communication technology and energy-saving electrical appliance control technologies to achieve safety, energy saving, convenience, comfort and artistry in lighting applications.

[0003] Traditional AC lighting systems are widely used in commercial and industrial buildings, but they have certain limitations, such as high energy loss, voltage fluctuations that may shorten the life of lamps, and lack of effective centralized control. With the development of intelligent lighting technology, the demand for more efficient and controllable lighting system architecture is growing. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present utility model is to provide an intelligent lighting system architecture using high-voltage DC centralized power supply, which can solve the shortcomings of traditional AC lighting systems in energy efficiency, stability and control flexibility, and achieve more efficient, more stable and more intelligent lighting.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An intelligent lighting system architecture using high-voltage direct current centralized power supply includes an HVDC power conversion unit, an intelligent lighting control unit, an emergency power supply energy storage unit, distributed lighting nodes, a communication network and a DC power grid; the HVDC power conversion unit supplies power to the distributed lighting nodes, the emergency power supply energy storage unit and the intelligent lighting control unit through the DC power grid; the intelligent lighting control unit communicates with the HVDC power conversion unit, the emergency power supply energy storage unit and the distributed lighting nodes through the communication network to realize centralized control and monitoring; the emergency power supply energy storage unit is connected to the DC power grid to realize energy storage and emergency power output.

[0007] As a preferred solution of the intelligent lighting system architecture using high-voltage direct current centralized power supply described in the utility model, the HVDC power conversion unit includes an AC distribution module, a rectifier module and a DC distribution module; the rectifier module is respectively connected to the AC distribution module and the DC distribution module.

[0008] As a preferred solution of the intelligent lighting system architecture using high-voltage DC centralized power supply described in the utility model, the intelligent lighting control unit includes an MCU main control module and a human-computer interaction module and a wireless communication module connected to the MCU main control module; the MCU main control module is connected to the AC power distribution module, the rectifier module and the DC power distribution module through a communication network.

[0009] As a preferred solution of the intelligent lighting system architecture using high-voltage direct current centralized power supply described in the utility model, the distributed lighting node includes a plurality of local control modules connected in series and LED lamps correspondingly connected to each local control module.

[0010] As a preferred solution for the intelligent lighting system architecture using high-voltage direct current centralized power supply described in the utility model, the emergency power supply energy storage unit includes a bidirectional DC-DC converter and a battery pack connected to each other; the bidirectional DC-DC converter is respectively connected to the DC distribution module, the MCU main control module and the local control module through a DC power grid.

[0011] As a preferred solution for the intelligent lighting system architecture using high-voltage direct current centralized power supply described in the utility model, the rectifier module includes an MCU, a PFC control circuit connected to the MCU, a detection circuit, an electromagnetic filter circuit, an inrush current limiting circuit, a rectifier circuit and a PFC circuit connected to the PFC control circuit, a switching circuit and a rectifier filter circuit; the AC distribution module is connected to the electromagnetic filter circuit, and the DC distribution module is connected to the rectifier filter circuit.

[0012] As a preferred solution for the intelligent lighting system architecture using high-voltage DC centralized power supply described in the utility model, the MCU main control module includes an MCU main control chip and an AC-DC auxiliary power supply, a noise filter and a surge protection circuit connected to the MCU main control chip in sequence; the MCU main control chip is connected to a touch display screen, a wireless communication module and a communication network; the AC power distribution module is connected to the surge protection circuit.

[0013] As a preferred solution for the intelligent lighting system architecture using high-voltage direct current centralized power supply described in the utility model, the bidirectional DC-DC converter includes a control unit, a power conversion unit, a filtering circuit, a noise filter and a surge current protector. One end of the power conversion unit is connected to the battery pack through the filtering circuit, the noise filter and the surge current protector in sequence; the other end of the power conversion unit is connected to the input and output ports through the filtering circuit, the noise filter and the surge current protector in sequence.

[0014] As a preferred solution for the intelligent lighting system architecture using high-voltage DC centralized power supply described in the utility model, one end of the local control module is connected to the input side terminal, and the input side terminal is connected to the bidirectional DC-DC converter and the MCU main control module through a communication line; the other end of the local control module is connected to the output side terminal, and the output side terminal is connected to the LED module.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention can solve the deficiencies of the traditional AC lighting system in terms of energy efficiency, stability and control flexibility, and realize a more efficient, more stable and more intelligent lighting solution;

[0016] The utility model provides higher energy efficiency: the DC power supply reduces the loss in the energy conversion process and improves the energy efficiency of the overall system.

[0017] The utility model provides a more stable voltage supply: HVDC technology provides a more stable voltage output, which is beneficial to extend the service life of the lamp.

[0018] The utility model provides more intelligent lighting control: the architecture of centralized control and distributed execution enables the lighting system to respond to environmental changes and user needs more flexibly and intelligently.

[0019] The utility model provides better compatibility: the system design allows compatibility with traditional lighting equipment, which is convenient for upgrading and renovation of existing buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 This is an overall structural diagram of the intelligent lighting system architecture that uses high-voltage direct current centralized power supply in the present utility model.

[0022] Figure 2 This is a flow chart of the structure decomposition of the utility model.

[0023] Figure 3 This is a circuit diagram of the HVDC power conversion unit of the utility model.

[0024] Figure 4 This is the circuit diagram of the intelligent lighting control unit of the utility model.

[0025] Figure 5 This is the circuit diagram of the emergency power supply energy storage unit of the utility model.

[0026] Numbers in the figure: 1. HVDC power conversion unit; 11. AC power distribution module; 12. Rectification module; 13. DC power distribution module; 2. Intelligent lighting control unit; 21. MCU main control module; 22. Human-computer interaction module; 23. Wireless communication module; 3. Emergency power supply energy storage unit; 31. Bidirectional DC-DC converter; 32. Battery pack; 4. Distributed lighting node; 41. Local control module; 42. LED lamps; 5. Communication network; 6. DC power grid. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example 1

[0029] Reference Figure 1-5 , which is the first embodiment of the utility model, provides an intelligent lighting system architecture using high-voltage DC centralized power supply, which can solve the shortcomings of traditional AC lighting systems in energy efficiency, stability and control flexibility, and achieve a more efficient, more stable and more intelligent lighting solution.

[0030] Specifically, it includes an HVDC power conversion unit 1, an intelligent lighting control unit 2, an emergency power storage unit 3, a distributed lighting node 4, a communication network 5 and a DC grid 6; the HVDC power conversion unit 1 supplies power to the distributed lighting node 4, the emergency power storage unit 3 and the intelligent lighting control unit 2 through the DC grid 6; the intelligent lighting control unit 2 communicates with the HVDC power conversion unit 1, the emergency power storage unit 3 and the distributed lighting node 4 through the communication network 5 to realize centralized control and monitoring; the emergency power storage unit 3 is connected to the DC grid 6 to realize energy storage and emergency power output. The communication network 5 connects each lighting node and control unit, and adopts wired network or wireless ZigBee or WiFi communication technology to ensure the real-time and reliability of information transmission; and ensure the communication stability and anti-interference ability of the system in complex environments. The DC grid 6 carries the circuit design of high-voltage DC and is responsible for transmitting high-voltage DC to the entire lighting system.

[0031] Preferably, the HVDC power conversion unit 1 comprises an AC power distribution module 11, a rectifier module 12 and a DC power distribution module 13; the rectifier module 12 is connected to the AC power distribution module 11 and the DC power distribution module 13 respectively. The AC power is converted into high-voltage DC power, and a stable DC voltage is provided through the DC power grid to supply the entire lighting system. The HVDC power conversion unit adopts IGBT or MOSFET high-efficiency power electronic devices to ensure high efficiency and reliability of power conversion.

[0032] Preferably, the intelligent lighting control unit 2 includes an MCU main control module 21, a human-computer interaction module 22 and a wireless communication module 23 connected to the MCU main control module 21; the MCU main control module 21 is connected to the AC power distribution module 11, the rectifier module 12 and the DC power distribution module 13 through the communication network 5. As the central control node of the system, it is responsible for receiving environmental data, user instructions, and making decisions and executing lighting strategies. The intelligent lighting control unit integrates advanced microprocessors and artificial intelligence algorithms, and can automatically adjust lighting strategies according to environmental changes.

[0033] Preferably, the distributed lighting node 4 includes a plurality of local control modules 41 connected in series and LED lamps 42 correspondingly connected to each local control module 41. The brightness and color temperature are adjusted according to the instructions of the intelligent lighting control unit to achieve energy-saving and comfortable lighting effects. The distributed lighting node is designed to be modular for easy installation and maintenance, and each node is equipped with an LED driver and a communication interface.

[0034] Preferably, the emergency power supply energy storage unit 3 includes a bidirectional DC-DC converter 31 and a battery pack 32 connected to each other; the bidirectional DC-DC converter 31 is respectively connected to the DC power distribution module 13, the MCU main control module 21 and the local control module 41 through the DC grid 6. Energy is stored through the DC grid, and electric energy output is achieved in an emergency state.

[0035] Preferably, Figure 3 As shown, the rectifier module 12 includes an MCU, a PFC control circuit connected to the MCU, a detection circuit, an electromagnetic filter circuit, an inrush current limiting circuit, a rectifier circuit and a PFC circuit connected to the PFC control circuit, a switching circuit and a rectifier filter circuit; the AC distribution module 11 is connected to the electromagnetic filter circuit, and the DC distribution module 13 is connected to the rectifier filter circuit.

[0036] Preferably, Figure 4 As shown, the MCU main control module 21 includes an MCU main control chip and an AC-DC auxiliary power supply, a noise filter and a surge protection circuit which are connected to the MCU main control chip in sequence. The MCU main control chip is connected to a touch display screen, a wireless communication module and a communication network; the AC power distribution module 11 is connected to the surge protection circuit.

[0037] Preferably, Figure 5 As shown, the bidirectional DC-DC converter 31 includes a control unit, a power conversion unit, a filter circuit, a noise filter and a surge current protector. One end of the power conversion unit is connected to the battery pack 32 through the filter circuit, the noise filter and the surge current protector in sequence; the other end of the power conversion unit is connected to the input and output ports through the filter circuit, the noise filter and the surge current protector in sequence.

[0038] Preferably, one end of the local control module 41 is connected to the input side terminal, which is connected to the bidirectional DC-DC converter 31 and the MCU main control module 21 through a communication line; the other end of the local control module 41 is connected to the output side terminal, which is connected to the LED module.

[0039] The working principle of the utility model is that the intelligent lighting system of the utility model converts AC power into high-voltage DC power through the HVDC power conversion unit, and then transmits it to the intelligent lighting control unit, distributed lighting nodes, and emergency power storage units through the DC power grid. The intelligent lighting control unit monitors the HVDC power conversion unit and the emergency power storage unit through the communication network, and sends dimming instructions to the distributed lighting nodes through the communication network according to the preset lighting strategy and real-time environmental data (such as light intensity, personnel activities, etc.). After receiving the instructions, the distributed lighting nodes adjust the brightness and color temperature of the LED lamps to achieve energy saving and improve the lighting quality; at the same time, the distributed lighting nodes feed back the current, voltage and fault parameters to the intelligent lighting control unit through the communication network. The emergency power storage unit stores energy through the DC power grid, and outputs electric energy in an emergency state to power the intelligent lighting control unit and the distributed lighting nodes.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace part or all of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An intelligent lighting system architecture using high-voltage DC centralized power supply, characterized by: The invention comprises an HVDC power conversion unit (1), an intelligent lighting control unit (2), an emergency power energy storage unit (3), a distributed lighting node (4), a communication network (5) and a DC power grid (6); the HVDC power conversion unit (1) supplies power to the distributed lighting node (4), the emergency power energy storage unit (3) and the intelligent lighting control unit (2) through the DC power grid (6); the intelligent lighting control unit (2) communicates with the HVDC power conversion unit (1), the emergency power energy storage unit (3) and the distributed lighting node (4) through the communication network (5) to realize centralized control and monitoring; the emergency power energy storage unit (3) is connected to the DC power grid (6) to realize energy storage and emergency power output.

2. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 1 is characterized in that: The HVDC power conversion unit (1) comprises an AC power distribution module (11), a rectifier module (12) and a DC power distribution module (13); the rectifier module (12) is connected to the AC power distribution module (11) and the DC power distribution module (13) respectively.

3. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 2 is characterized in that: The intelligent lighting control unit (2) comprises an MCU main control module (21) and a human-machine interaction module (22) and a wireless communication module (23) connected to the MCU main control module (21); the MCU main control module (21) is connected to the AC power distribution module (11), the rectifier module (12) and the DC power distribution module (13) via a communication network (5).

4. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 3 is characterized in that: The distributed lighting node (4) comprises a plurality of local control modules (41) connected in series and LED lamps (42) correspondingly connected to each local control module (41).

5. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 4 is characterized in that: The emergency power supply energy storage unit (3) comprises a bidirectional DC-DC converter (31) and a battery pack (32) connected to each other; the bidirectional DC-DC converter (31) is respectively connected to a DC power distribution module (13), an MCU main control module (21) and a local control module (41) via a DC power grid (6).

6. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 2 or 5, characterized in that: The rectifier module (12) comprises an MCU, a PFC control circuit connected to the MCU, a detection circuit, an electromagnetic filter circuit, an inrush current limiting circuit, a rectifier circuit and a PFC circuit connected to the PFC control circuit, a switching circuit and a rectifier filter circuit; the AC power distribution module (11) is connected to the electromagnetic filter circuit, and the DC power distribution module (13) is connected to the rectifier filter circuit.

7. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 3 or 5, characterized in that: The MCU main control module (21) comprises an MCU main control chip and an AC-DC auxiliary power supply, a noise filter and a surge protection circuit which are sequentially connected to the MCU main control chip; the MCU main control chip is connected to a touch display screen, a wireless communication module and a communication network; and the AC power distribution module (11) is connected to the surge protection circuit.

8. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 5 is characterized in that: The bidirectional DC-DC converter (31) comprises a control unit, a power conversion unit, a filter circuit, a noise filter and a surge current protector; one end of the power conversion unit is connected to a battery pack (32) via the filter circuit, the noise filter and the surge current protector in sequence; and the other end of the power conversion unit is connected to an input and output port via the filter circuit, the noise filter and the surge current protector in sequence.

9. The intelligent lighting system architecture using high-voltage DC centralized power supply according to claim 5, characterized in that: One end of the local control module (41) is connected to an input-side wiring terminal, which is connected to a bidirectional DC-DC converter (31) and an MCU main control module (21) via a communication line; the other end of the local control module (41) is connected to an output-side wiring terminal, which is connected to an LED module.

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