Beijing Lewei IOT Technologies Co., Ltd.

Application of Power DTU in Remote Monitoring of Solar Photovoltaic Inverter

Program requirements

The most important function of photovoltaic inverter is to convert the direct current generated by solar panels into the alternating current used by household appliances. All the electricity generated by solar panels can only be output through the processing of the inverter. At the same time, the photovoltaic (pv) grid inverter must work within the prescribed scope of power grid voltage, real time monitoring and synchronous with power grid voltage, when the inverter power grid voltage is detected (voltage) was beyond the scope of regulation, the inverter has to jump to stop work, in order to ensure that equipment safety and protect the personal safety of operators. Inverter also known as power regulator, power regulator. Remote parameter monitoring of photovoltaic inverter is an indispensable part of photovoltaic system.

Technology deployment

The inverter cabinet has high pressure, the operator shall not open the cabinet door monitoring generally, the cabinet door should be locked at ordinary times. Gold power DTU inside ark remote monitoring circuit, over current, over voltage, overheating, etc., at room temperature for more than 30 ℃, the cooling measures should be taken, to prevent the equipment malfunction. The power DTU serial port RS485/RS232 is connected with the inverter in the cabinet through MODBUS communication, and the antenna extends out of the cabinet and is fixed with magnets. MODBUS communication is the same, the biggest difference is that the communication code is self-defined, gold mining DTU conforms to the power of the 101 specification, seamless compatible inverter parameter collection, data monitoring. All-weather online, and automatically uploaded to the photovoltaic system data monitoring server through wireless cellular Internet, users can access the website through a variety of mobile phone client application software or browser to obtain important information of photovoltaic power station.

Advantages of the program

1. 4G, 3G, 2.5g network, automatic downward compatibility, suitable for all the mainstream telecom operators in the world;
2. Industrial chip design, wide temperature and pressure adaptability;
3. Ultra-low power consumption, convenient battery power;
4. Software and hardware watchdog technology, equipment does not drop;
5. Support PPP layer heartbeat, ICMP detection, TCP Keepalive multi-level link detection mechanism, automatic recovery of network fault;
6. Local serial port configuration, upgrade, support SMS mode parameter configuration;
7. Support power IEC101/IEC104 protocol conversion;
8. Support ModbusTCP/Modbus RTU protocol conversion;
9. Compatible with on-site industrial equipment and industrial SCADA docking;

Beijing Lewei IOT Technologies Co., Ltd. provides technology development, technology service, technology transfer and technology consulting service of solar pv monitoring devices, contact us now.
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