PORTABLE PHOTOVOLTAIC ASSEMBLY V-I TESTER AND PHOTOVOLTAIC ASSEMBLY TEST SYSTEM

摘要

A portable photovoltaic assembly V-I tester and a photovoltaic assembly test system, comprising a host. The host comprises: a power unit and a control unit; an AD acquisition module (2) is used for measuring the voltage and current of a photovoltaic assembly (1), and sending the measured voltage and current values to a single chip microcomputer (3); the single chip microcomputer (3) screens and processes received data information, parses, collects statistics about and stores the acquired photovoltaic assembly data, compares the acquired photovoltaic assembly data with a corresponding threshold, and outputs the result to a display module (4) for displaying. The portable photovoltaic assembly V-I tester can carry out voltage division calculation on an input voltage of a high-power photovoltaic assembly, has a large measuring scope, can be applied in a safe measuring scope, and can improve measuring precision; the circuit principle design is concise, and elements are reasonably laid out, so the whole device volume can be greatly reduced, and the portable photovoltaic assembly V-I tester is portable; the host is provided with an infrared thermodetector which can help the host in temperature correction, thus improving measuring precision.