Voltage measurement apparatus voltage measurement method and storage medium

The present application relates to a voltage measurement device, a voltage measurement method, and a storage medium. The voltage measurement device comprises a probe module and a measurement unit. The probe module is movably sleeved on an outer insulation surface layer of an AC power transmission line. A metal electrode is provided on the surface of the probe module opposite to the AC power transmission line. The metal electrode is electrically coupled to the AC power transmission line to form a coupling capacitor, thereby forming an electrical loop with an inductive element, a resistive element and a reference signal source in the measurement unit. A processor controls the reference signal source to input reference voltage signals of different frequencies to the electrical loop, determines a resonant frequency of the electrical loop according to the current of the electrical loop under the reference voltage signals of different frequencies, and determines the voltage of the AC power transmission line according to a first current component amplitude of the electrical loop and the resonant frequency. By means of the present solution, non-contact measurement of the voltage of the AC power transmission line can be achieved, the installation is simple, the voltage measurement efficiency and safety can be improved, and the accuracy of voltage measurement of the AC power transmission line is improved.