A distributed power supply access device

Abstract

The utility model discloses a kind of distributed power access devices, including microcontroller MCU, power interface, debugging interface, photovoltaic inverter communication switching interface, HPLC carrier communication unit and bluetooth communication unit, and power interface is connected microcontroller and HPLC carrier communication unit by power conversion circuit;HPLC carrier communication unit is connected microcontroller by first TTL serial port;Bluetooth communication unit is connected microcontroller by second TTL serial port;Photovoltaic inverter communication switching interface is connected microcontroller by first level conversion circuit, and first level conversion circuit is connected microcontroller by third TTL serial port and fourth TTL serial port;Debugging interface is connected microcontroller by second level conversion circuit, and second level conversion circuit is connected microcontroller by fifth TTL serial port.The utility model is high in installation efficiency, maintenance is convenient to replace, low in production cost, safe and reliable, easy to manufacture, less consumables required in field, simple in design.

Description

Technical Field

[0001] This utility model relates to a distributed power supply access device, belonging to the fields of smart grid and smart electricity technology. Background Technology

[0002] With the rapid development of my country's economy, the number of newly added photovoltaic power generation is increasing day by day and is widely distributed. In order to effectively manage distributed photovoltaic power generation, photovoltaic protocol converters and photovoltaic interface converters need to be installed at various engineering sites to adapt to photovoltaic inverters and their protocols from different manufacturers.

[0003] This installation method has the following problems:

[0004] 1. Low installation efficiency, requiring the installation of two devices for each construction project;

[0005] 2. The wiring is complicated, with numerous interfaces on both devices, making it easy to connect incorrectly;

[0006] 3. Two devices need to be debugged on site, which is time-consuming and labor-intensive;

[0007] 4. Maintenance is difficult, and when a problem occurs, it is impossible to quickly locate the specific device.

[0008] These problems significantly reduce installation and maintenance efficiency while increasing equipment costs.

[0009] Therefore, a new distributed power supply access device is needed to solve the above problems. Utility Model Content

[0010] The purpose of this invention is to provide a distributed power supply access device to solve the problems mentioned in the background art.

[0011] A distributed power access device includes a microcontroller (MCU), a power interface, a debugging interface, a photovoltaic inverter communication switching interface, an HPLC carrier communication unit, and a Bluetooth communication unit. The power interface is connected to the MCU and the HPLC carrier communication unit via a power conversion circuit. The HPLC carrier communication unit is connected to the MCU via a first TTL serial port. The Bluetooth communication unit is connected to the MCU via a second TTL serial port. The photovoltaic inverter communication switching interface is connected to the MCU via a first level conversion circuit, which is connected to the MCU via a third and a fourth TTL serial port. The debugging interface is connected to the MCU via a second level conversion circuit, which is connected to the MCU via a fifth TTL serial port.

[0012] Furthermore, the communication switching interface of the photovoltaic inverter is an RJ45 interface.

[0013] Furthermore, the photovoltaic inverter communication switching interface is connected to the photovoltaic inverter and the 4G communication stick via a network cable.

[0014] Furthermore, the network cable is a custom-made network cable, with one end having an RJ45 crystal head and the other end having an inverter interface and a 4G communication stick interface.

[0015] Furthermore, the inverter interface is a USB 3.0 female connector, and the 4G communication stick interface is a USB 3.0 male connector.

[0016] Furthermore, a waterproof ring is provided on the outside of the inverter interface.

[0017] Furthermore, the HPLC carrier communication unit provides a northbound communication link to send data to the master station.

[0018] Furthermore, the Bluetooth communication unit serves as a field debugging channel.

[0019] Furthermore, it also includes a housing, in which the microcontroller (MCU), power interface, debugging interface, photovoltaic inverter communication switching interface, HPLC carrier communication unit, and Bluetooth communication unit are all housed.

[0020] Beneficial effects: The distributed power access device of this utility model has high installation efficiency, convenient maintenance and replacement, low production cost, safety and reliability, is easy to manufacture, requires few consumables on site, has a simple design, and is conducive to promotion and application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a distributed power supply access device;

[0022] Figure 2 A structural diagram of a custom network cable;

[0023] Figure 3 This is a schematic diagram of the 4G communication stick interface.

[0024] Figure 4 This is a schematic diagram of the inverter interface. Detailed Implementation

[0025] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0026] This utility model provides a distributed power supply access device, which can effectively solve the following problems:

[0027] 1. Low installation efficiency: Only one device needs to be installed on site.

[0028] 2. The wiring is simple: this device connects to the photovoltaic inverter via an RJ45 cable harness.

[0029] 3. This device supports Bluetooth and RS485 debugging, which is simple and efficient.

[0030] This enables the management of distributed photovoltaic power generation to meet the technical requirements of being observable, measurable, adjustable, and controllable, improves and establishes corresponding dispatch and operation mechanisms, optimizes grid operation modes, and makes the management of distributed photovoltaic power generation more efficient.

[0031] Please see Figure 1 As shown, this utility model comprises three components: a housing, a power interface, a debugging interface, a photovoltaic inverter communication switching interface (RJ45), an HPLC carrier communication unit, and a Bluetooth communication unit.

[0032] 1. The outer casing is an essential structural component of the device;

[0033] 2. Provide power to the device via the power interface;

[0034] 3. The debugging interface is a local debugging port, which can be used for debugging via computer;

[0035] 4. The photovoltaic inverter communication switching interface (RJ45) can be quickly connected to the photovoltaic inverter and 4G communication stick via a customized network cable;

[0036] Among them, such as Figure 2 As shown, the custom network cable has an RJ45 crystal head interface on one end and an inverter interface and a 4G communication stick interface on the other end.

[0037] like Figure 3 and Figure 4 As shown, the inverter interface is a USB 3.0 female connector, and the 4G communication stick interface is a USB 3.0 male connector; a waterproof ring is provided on the outside of the inverter interface;

[0038] 5. The HPLC carrier communication unit provides a northbound communication link for the device, sending data to the master station;

[0039] 6. The Bluetooth communication unit serves as a field debugging channel, allowing engineers to wirelessly connect to the device via Bluetooth and perform debugging through a mobile app. This is convenient, fast, and highly efficient.

[0040] Example 1:

[0041] The specific implementation steps on site are as follows:

[0042] Step 1: Connect the distributed power access device to the photovoltaic inverter and the 4G communication stick using a custom network cable;

[0043] Step 2: Connect the distributed power supply device to power and start operation;

[0044] Step 3: Use the mobile app to connect to the device via Bluetooth for on-site debugging.

[0045] The entire installation process is simple, efficient, and quick.

Claims

1. A distributed power supply access device, characterized in that, The device includes a microcontroller (MCU), a power interface, a debugging interface, a photovoltaic inverter communication switching interface, an HPLC carrier communication unit, and a Bluetooth communication unit. The power interface is connected to the microcontroller and the HPLC carrier communication unit via a power conversion circuit. The HPLC carrier communication unit is connected to the microcontroller via a first TTL serial port. The Bluetooth communication unit is connected to the microcontroller via a second TTL serial port. The photovoltaic inverter communication switching interface is connected to the microcontroller via a first level conversion circuit, which is connected to the microcontroller via a third and a fourth TTL serial port. The debugging interface is connected to the microcontroller via a second level conversion circuit, which in turn is connected to the microcontroller via a fifth TTL serial port.

2. The distributed power supply access device as described in claim 1, characterized in that: The communication switching interface of the photovoltaic inverter is an RJ45 interface.

3. The distributed power supply access device as described in claim 1, characterized in that: The photovoltaic inverter communication switching interface is connected to the photovoltaic inverter and the 4G communication stick via a network cable.

4. The distributed power supply access device as described in claim 3, characterized in that: The network cable is a custom-made network cable, with one end having an RJ45 crystal head and the other end having an inverter interface and a 4G communication stick interface.

5. The distributed power supply access device as described in claim 4, characterized in that: The inverter interface is a USB 3.0 female connector, and the 4G communication stick interface is a USB 3.0 male connector.

6. The distributed power supply access device as described in claim 4, characterized in that: A waterproof ring is provided on the outside of the inverter interface.

7. The distributed power supply access device as described in claim 1, characterized in that: The HPLC carrier communication unit provides a northbound communication link to send data to the master station.

8. The distributed power supply access device as described in claim 1, characterized in that: The Bluetooth communication unit is a field debugging channel.

9. The distributed power supply access device as described in claim 1, characterized in that: It also includes a housing, in which the microcontroller (MCU), power interface, debugging interface, photovoltaic inverter communication switching interface, HPLC carrier communication unit and Bluetooth communication unit are all housed.

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