patents.google.com
3/19/2024
CN117353463B - Synchronous sampling method and related device for multipath alternating current electric quantity - Google Patents
The application discloses a synchronous sampling method of multipath alternating current electric quantity and a related device, wherein the method comprises the following steps: acquiring the power grid frequency of an alternating current power supply system of a transformer substation; inputting the power grid frequency into an internal timer to generate a pulse width modulation signal, triggering a multi-channel sampling device to perform sampling through the rising edge of the pulse width modulation signal to complete synchronous interruption, and obtaining first sampling data; and carrying out single-channel synchronous processing on the first sampling data by a sampling time adjustment method to obtain synchronous sampling data. The method and the device can achieve the purpose of period synchronization, improve the precision of synchronous sampling, and can be widely applied to the technical field of synchronous sampling.