Photovoltaic power station monitoring system based on industrial wireless network

Abstract

The invention relates to the wireless communication technology, in particular to a communication system which is based on a WIA industrial wireless network and used for monitoring and controlling operation of a photovoltaic power station in real time. The system comprises an upper computer, a wireless gateway device and wireless node devices, the upper computer is arranged in a monitoring room, provides a human-computer interaction interface of the monitoring system for a user and is connected with the wireless gateway through the Ethernet and used for monitoring photovoltaic equipment, the wireless gateway device completes data and control command switching with the wireless node devices and provides the upper computer with an inquiry and control interface, the wireless node devices are arranged in each monitored solar cell array tracking support and each monitored photoelectric combiner box in a dispersed mode and collect data of the solar cell arrays and the photoelectric combiner boxes. The system can totally replace an existing wired connection system and complete functions such as data collection of the equipment, sun-orienting control of the solar cell arrays and daily management of the power station, reduces building and maintaining cost of the photoelectric power station, promotes flexibility of the overall arrangement and is convenient for a user to manage.

Description

technical field [0001] The invention relates to wireless communication technology, and specifically describes a communication system for real-time monitoring and control of the operation of a photovoltaic power station based on a WIA industrial wireless network. Background technique [0002] Photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to directly convert solar energy into electrical energy. At present, the main components of photovoltaic power plants include: solar battery packs, combiner boxes, inverters, transformers and other equipment. The main data that the system needs to monitor are the real-time angle of the solar cell group, the DC current and voltage value of the input and output of the combiner box, the current, voltage, power, power generation, switching value, alarm value and other parameters of the inverter. Since the solar battery pack with a tracking system will increase the power generation by 10% to 30% ...

AI Technical Summary

Problems solved by technology

Due to the large area of ​​the photovoltaic power station, if the wired monitoring is adopted according to the existing method, the wiring of the system will be complicated, and additional control equipment such as PLC will be required, and the real-time monitoring of the PLC will not be possible, and the layout of the equipment will be limited. , not only increases the cost of construction and maintenance, but also has poor scalability

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