Rapidly deployed photovoltaic inverter data collector based on wireless communication

Abstract

The utility model relates to a wireless communication-based rapid deployment photovoltaic inverter data collector, which comprises a master device and a slave device, and the slave device is installed at a 4G communication rod of an original monitoring device of a photovoltaic inverter, takes electricity through a communication interface of the photovoltaic inverter and is provided with a battery. The slave device uploads the collected data to the master device in a wireless mode; the main device is installed at a three-phase line and is supplied with power after three-phase line alternating current is subjected to voltage stabilization through the power supply module. The main device gathers data to the transformer area intelligent fusion terminal in a carrier wave mode. The transformer area intelligent fusion terminal is connected with the transformer area transformer through a three-phase line; the system has the advantages that the structure is reasonable, a wireless communication mode is adopted, a master-slave equipment mode is adopted, and flexible deployment can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power Internet of Things, and specifically relates to a fast-deployed photovoltaic inverter data collector based on wireless communication. Background Art

[0002] With the gradual advancement of the "dual carbon" goals and the promotion of the "county-wide rooftop distributed photovoltaic development pilot project", a large number of distributed photovoltaics are connected to the distribution network of the substation, and problems such as reverse heavy overload, overvoltage, and excessive harmonics are prominent; at present, the access of photovoltaic inverters in new energy substations adopts carrier communication technology to access the substation intelligent fusion terminal, which exposes problems such as large construction workload and frequent channel conflicts, and cannot quickly and reliably support the construction of new energy substations; in order to adapt to the large-scale access needs of photovoltaic inverters, it is urgent to carry out the development of a rapid deployment of photovoltaic inverter data collector based on wireless communication; therefore, it is very necessary to provide a rapid deployment photovoltaic inverter data collector based on wireless communication with a reasonable structure, wireless communication, master-slave device mode, and flexible deployment. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a fast-deployed photovoltaic inverter data collector based on wireless communication, which has a reasonable structure, adopts a wireless communication method, adopts a master-slave device mode, and can be flexibly deployed.

[0004] The purpose of the utility model is achieved as follows: a fast-deployed photovoltaic inverter data collector based on wireless communication, which includes a master device and a slave device, wherein the slave device is installed at the original monitoring device 4G communication stick of the photovoltaic inverter and the slave device draws power through the photovoltaic inverter communication interface and is equipped with a battery, and the slave device uploads the collected data to the master device wirelessly; the master device is installed at a three-phase line and the master device is powered by three-phase line alternating current after being stabilized by a power module, and the master device aggregates data to a substation intelligent fusion terminal in a carrier manner; the substation intelligent fusion terminal is connected to the substation transformer through a three-phase line.

[0005] The master device includes a first MCU controller, a first power manager, a memory, a first wireless communicator, a clock chip, a power carrier, Bluetooth and an LED indicator light; the first power manager, the memory, the first wireless communicator, the clock chip, the power carrier, Bluetooth and the LED indicator light are electrically connected to the first MCU controller respectively.

[0006] The first MCU controller supports DLT645 and DLT698 protocols upward, aggregates the data collected from the device to the TTU through the power carrier, and realizes data interaction with the slave device, online diagnosis of device data and photovoltaic output regulation functions through wireless.

[0007] The Bluetooth adopts the E104-BT52E22 chip, which is used for equipment debugging and stores relevant configuration information through the AT24C18 memory; the clock chip adopts the S353 chip to provide accurate time signals and assist in the accurate transmission of collected data; the power carrier adopts the TCC091 chip, which uses modulation to safely transmit the lower-end collected data to the substation intelligent fusion terminal.

[0008] The slave device includes a second MCU controller, a second power manager, a second wireless communicator and an input / output device; the second power manager includes a battery; the second power manager, the second wireless communicator and the input / output device are respectively connected to the second MCU controller.

[0009] The second MCU controller controls the input and output device to regularly collect the photovoltaic inverter data and provides two output channels, one of which is output to the original monitoring device 4G communication stick of the photovoltaic inverter through the level conversion module, and the other is output to the main device through the level conversion module.

[0010] The input / output device can realize data collection and forwarding. The external input is quickly connected to the photovoltaic inverter communication interface to realize device power supply and connection with the photovoltaic inverter data interface. One external output is connected to the 4G communication stick of the photovoltaic inverter to maintain the normal operation of the inverter monitoring platform. Another external output is connected to the second wireless communicator through the internal circuit to transmit the photovoltaic inverter data to the main device by wireless communication.

[0011] The first wireless communicator and the second wireless communicator both use E22 chips; the first wireless communicator is used for communication between a master device and a slave device; the second wireless communicator has multiple transmission modes, an external antenna with high impedance matching, low power loss and easy installation, and cooperates to achieve long-distance wireless communication.

[0012] The first power manager and the second power manager both use UZ1085L-33-TN3-R linear regulators, which can meet the normal operation of the photovoltaic inverter data collector master and slave devices with extremely low power consumption; the second power manager is equipped with a battery, which can send a power-off signal to the substation intelligent fusion terminal when a power-off event occurs in the photovoltaic inverter, to assist in determining the status of the photovoltaic inverter.

[0013] The first MCU controller and the second MCU controller both use STM32F103C8T6 chip controllers, which have sleep, shutdown and standby low-power modes; the first MCU controller can upload data to the substation intelligent fusion terminal, and can interact with data and adjust photovoltaic output; the second MCU controller is powered by DC.

[0014] The beneficial effects of the utility model are as follows: the utility model is a fast-deployed photovoltaic inverter data collector based on wireless communication. During use, the utility model adopts wireless communication to solve the limitations of traditional wiring methods for photovoltaic data access, realize wiring-free installation, and reduce construction workload; the utility model adopts a master-slave device mode, and while ensuring the normal operation of the original photovoltaic inverter 4G monitoring equipment, it reduces the number of carrier devices used while realizing reliable data transmission, and effectively avoids problems such as channel conflicts; the utility model has two types of master and slave devices, both of which adopt low-power design and wireless transmission, which can realize flexible deployment of monitoring devices and eliminate on-site wiring and later device maintenance; the utility model transmits monitoring data to the main device through the wireless communication unit of the slave device, and the main device transmits the data to the intelligent fusion terminal in carrier mode, and the intelligent fusion terminal transmits the data to the monitoring platform through the intranet, so as to realize real-time online monitoring of photovoltaic power generation data and the working status of photovoltaic inverters. The utility model has the advantages of reasonable structure, wireless communication, master-slave device mode, and flexible deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the working mode of the master and slave devices of the present utility model.

[0016] Figure 2 This is a block diagram of the main equipment of the utility model.

[0017] Figure 3 This is a block diagram of the slave device composition of the utility model.

[0018] Figure 4 It is the work flow chart of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings. Example

[0020] like Figure 1-4As shown, a rapid deployment photovoltaic inverter data collector based on wireless communication includes a master device and a slave device, wherein the slave device is installed at the original monitoring device 4G communication stick of the photovoltaic inverter and the slave device is powered by the photovoltaic inverter communication interface and is equipped with a battery, and the slave device uploads the collected data to the master device wirelessly; the master device is installed at the three-phase line and the master device is powered by the three-phase line alternating current after being stabilized by a power module, and the master device aggregates the data to the substation intelligent fusion terminal in a carrier manner; the substation intelligent fusion terminal is connected to the substation transformer through a three-phase line.

[0021] The master device includes a first MCU controller, a first power manager, a memory, a first wireless communicator, a clock chip, a power carrier, Bluetooth and an LED indicator light; the first power manager, the memory, the first wireless communicator, the clock chip, the power carrier, Bluetooth and the LED indicator light are electrically connected to the first MCU controller respectively.

[0022] The first MCU controller supports DLT645 and DLT698 protocols upward, aggregates the data collected from the device to the TTU through the power carrier, and realizes data interaction with the slave device, online diagnosis of device data and photovoltaic output regulation functions through wireless.

[0023] The Bluetooth adopts the E104-BT52E22 chip, which is used for equipment debugging and stores relevant configuration information through the AT24C18 memory; the clock chip adopts the S353 chip to provide accurate time signals and assist in the accurate transmission of collected data; the power carrier adopts the TCC091 chip, which uses modulation to safely transmit the lower-end collected data to the substation intelligent fusion terminal.

[0024] The first wireless communicator adopts an E22 chip; the first wireless communicator is used for communication between a master device and a slave device.

[0025] The first power manager adopts UZ1085L-33-TN3-R linear regulator, which can meet the normal operation of the photovoltaic inverter data collector main device with extremely low power consumption.

[0026] The first MCU controller adopts an STM32F103C8T6 chip controller, which has sleep, shutdown and standby low power consumption modes; the first MCU controller can upload data to the substation intelligent fusion terminal, and can interact with data and adjust photovoltaic output downward.

[0027] In this embodiment, the utility model is composed of two devices, a master and a slave. Both the master and the slave adopt low-power design and wireless transmission technology, operate stably with extremely low power consumption, have ample wireless channels, and the communication distance can cover the entire substation, and no wiring is required for on-site implementation. Low-power wireless design is adopted and it is compatible with a variety of quick-connect terminals. It can directly draw power and data from the communication port of the photovoltaic inverter, and transmit the photovoltaic power generation data of the substation to the intelligent fusion terminal of the substation in real time by wireless transmission, while ensuring the normal operation of the original photovoltaic inverter 4G monitoring equipment, effectively reducing the difficulty of large-scale access to photovoltaic inverters, and strongly supporting the construction of "observable, measurable, adjustable, and controllable" new energy substations.

[0028] The utility model is a fast-deployed photovoltaic inverter data collector based on wireless communication. During use, the utility model adopts wireless communication to solve the limitations of traditional wiring methods for photovoltaic data access, realize wiring-free installation, and reduce construction workload; the utility model adopts a master-slave device mode, and under the premise of ensuring the normal operation of the original photovoltaic inverter 4G monitoring equipment, reduces the number of carrier devices used while realizing reliable data transmission, effectively avoiding problems such as channel conflicts; the utility model has two types of master and slave devices, both of which adopt low-power design and wireless transmission, which can realize flexible deployment of monitoring devices and eliminate on-site wiring and later device maintenance; the utility model transmits monitoring data to the main device through the wireless communication unit of the slave device, and the main device transmits the data to the intelligent fusion terminal in carrier mode, and the intelligent fusion terminal transmits the data to the monitoring platform through the intranet, realizing real-time online monitoring of photovoltaic power generation data and the working status of the photovoltaic inverter. The utility model has the advantages of reasonable structure, wireless communication, master-slave device mode, and flexible deployment. Example

[0029] like Figure 1-4 As shown, a rapid deployment photovoltaic inverter data collector based on wireless communication includes a master device and a slave device, wherein the slave device is installed at the original monitoring device 4G communication stick of the photovoltaic inverter and the slave device is powered by the photovoltaic inverter communication interface and is equipped with a battery, and the slave device uploads the collected data to the master device wirelessly; the master device is installed at the three-phase line and the master device is powered by the three-phase line alternating current after being stabilized by a power module, and the master device aggregates the data to the substation intelligent fusion terminal in a carrier manner; the substation intelligent fusion terminal is connected to the substation transformer through a three-phase line.

[0030] The slave device includes a second MCU controller, a second power manager, a second wireless communicator and an input / output device; the second power manager includes a battery; the second power manager, the second wireless communicator and the input / output device are respectively connected to the second MCU controller.

[0031] The second MCU controller controls the input and output device to regularly collect the photovoltaic inverter data and provides two output channels, one of which is output to the original monitoring device 4G communication stick of the photovoltaic inverter through the level conversion module, and the other is output to the main device through the level conversion module.

[0032] The input / output device can realize data collection and forwarding. The external input is quickly connected to the photovoltaic inverter communication interface to realize device power supply and connection with the photovoltaic inverter data interface. One external output is connected to the 4G communication stick of the photovoltaic inverter to maintain the normal operation of the inverter monitoring platform. Another external output is connected to the second wireless communicator through the internal circuit to transmit the photovoltaic inverter data to the main device by wireless communication.

[0033] The second wireless communicator adopts an E22 chip, has multiple transmission modes, and has an external antenna with high impedance matching, low power loss, and easy installation, which cooperates to achieve long-distance wireless communication.

[0034] The second power manager adopts UZ1085L-33-TN3-R linear regulator, which can meet the normal operation of the photovoltaic inverter data collector slave device with extremely low power consumption; the second power manager is equipped with a battery, which can send a power-off signal to the substation intelligent fusion terminal when a power-off event occurs in the photovoltaic inverter, to assist in judging the status of the photovoltaic inverter.

[0035] The second MCU controller adopts an STM32F103C8T6 chip controller, which has sleep, shutdown and standby low power consumption modes; the second MCU controller is powered by direct current.

[0036] In this embodiment, the working principle of the utility model is as follows: Figure 4 As shown, specifically: ① Power on: the device is powered on and the program is started; ② Initialization: complete initialization, load configuration parameters, and enter the acquisition state; ③ The master device sends data acquisition instructions: the master device sends data acquisition instructions to the slave device through Lora wireless to promote data acquisition; ④ The slave device receives commands and collects inverter data: wirelessly receives the master device acquisition instructions and collects photovoltaic inverter data; ⑤ The slave device collects data and uploads it to the master device: after the slave device completes the data acquisition work, it uploads the collected data to the master device in wireless form; ⑥ Wireless upload of master device data: after the photovoltaic data is collected, the master device sends it to the intelligent fusion terminal of the substation through the carrier module, and waits for the next round of acquisition instructions to be issued.

[0037] The utility model is a fast-deployed photovoltaic inverter data collector based on wireless communication. During use, the utility model adopts wireless communication to solve the limitations of traditional wiring methods for photovoltaic data access, realize wiring-free installation, and reduce construction workload; the utility model adopts a master-slave device mode, and under the premise of ensuring the normal operation of the original photovoltaic inverter 4G monitoring equipment, reduces the number of carrier devices used while realizing reliable data transmission, effectively avoiding problems such as channel conflicts; the utility model has two types of master and slave devices, both of which adopt low-power design and wireless transmission, which can realize flexible deployment of monitoring devices and eliminate on-site wiring and later device maintenance; the utility model transmits monitoring data to the main device through the wireless communication unit of the slave device, and the main device transmits the data to the intelligent fusion terminal in carrier mode, and the intelligent fusion terminal transmits the data to the monitoring platform through the intranet, realizing real-time online monitoring of photovoltaic power generation data and the working status of the photovoltaic inverter. The utility model has the advantages of reasonable structure, wireless communication, master-slave device mode, and flexible deployment.

Claims

1. A fast-deployed photovoltaic inverter data collector based on wireless communication, comprising a master device and a slave device, characterized in that: The slave device is installed at the original monitoring device 4G communication stick of the photovoltaic inverter and the slave device draws power through the photovoltaic inverter communication interface and is equipped with a battery. The slave device uploads the collected data to the master device wirelessly; the master device is installed at the three-phase line and the master device is powered by three-phase line alternating current after voltage stabilization by a power module. The master device aggregates data to the substation intelligent fusion terminal in a carrier manner; the substation intelligent fusion terminal is connected to the substation transformer through a three-phase line.

2. According to claim 1, a rapid deployment photovoltaic inverter data collector based on wireless communication is characterized in that: The master device includes a first MCU controller, a first power manager, a memory, a first wireless communicator, a clock chip, a power carrier, Bluetooth and an LED indicator light; the first power manager, the memory, the first wireless communicator, the clock chip, the power carrier, Bluetooth and the LED indicator light are electrically connected to the first MCU controller respectively.

3. According to claim 2, a rapid deployment photovoltaic inverter data collector based on wireless communication is characterized in that: The first MCU controller supports DLT645 and DLT698 protocols upward, collects data from the equipment and aggregates the power carrier to TTU, and realizes data interaction with the equipment downward, online diagnosis of equipment data and photovoltaic output regulation functions through wireless.

4. According to claim 3, a rapid deployment photovoltaic inverter data collector based on wireless communication is characterized in that: The Bluetooth adopts the E104-BT52E22 chip, which is used for equipment debugging and stores relevant configuration information through the AT24C18 memory; the clock chip adopts the S353 chip to provide accurate time signals and assist in the accurate transmission of collected data; the power carrier adopts the TCC091 chip, which uses modulation to safely transmit the lower-end collected data to the substation intelligent fusion terminal.

5. The rapid deployment photovoltaic inverter data collector based on wireless communication according to claim 1, characterized in that: The slave device includes a second MCU controller, a second power manager, a second wireless communicator and an input / output device; the second power manager includes a battery; the second power manager, the second wireless communicator and the input / output device are respectively connected to the second MCU controller.

6. A fast-deployed photovoltaic inverter data collector based on wireless communication according to claim 5, characterized in that: The second MCU controller controls the input and output device to regularly collect the photovoltaic inverter data and provides two output channels, one of which is output to the original monitoring device 4G communication stick of the photovoltaic inverter through the level conversion module, and the other is output to the main device through the level conversion module.

7. A fast-deployed photovoltaic inverter data collector based on wireless communication according to claim 6, characterized in that: The input / output device can realize data collection and forwarding. The external input is quickly connected to the photovoltaic inverter communication interface to realize device power supply and connection with the photovoltaic inverter data interface. One external output is connected to the 4G communication stick of the photovoltaic inverter to maintain the normal operation of the inverter monitoring platform. Another external output is connected to the second wireless communicator through the internal circuit to transmit the photovoltaic inverter data to the main device by wireless communication.

8. The wireless communication-based rapid deployment photovoltaic inverter data collector according to claim 2, characterized in that: The first wireless communicator and the second wireless communicator both use E22 chips; the first wireless communicator is used for communication between a master device and a slave device.

9. The rapid deployment photovoltaic inverter data collector based on wireless communication according to claim 2, characterized in that: The first power manager and the second power manager both use UZ1085L-33-TN3-R linear regulators, which can meet the normal operation of the photovoltaic inverter data collector master and slave devices with extremely low power consumption; the second power manager is equipped with a battery, which can send a power-off signal to the substation intelligent fusion terminal when a power-off event occurs in the photovoltaic inverter, to assist in determining the status of the photovoltaic inverter.

10. The wireless communication-based rapid deployment photovoltaic inverter data collector according to claim 2, characterized in that: The first MCU controller and the second MCU controller both adopt STM32F103C8T6 chip controller, which has sleep, stop and standby low power consumption modes; The first MCU controller can upload data to the substation intelligent fusion terminal, and can interact with data and adjust photovoltaic output downward; the second MCU controller is powered by direct current.

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