Error Analysis of F/V Conversion System Based on Beidou Time Frequency Synchronization

With the maturity of the Beidou satellite navigation system, Beidou's application in the power system continues to expand and deepen. The Beidou satellite navigation system can provide reliable spatio-temporal information services for power systems, especially new metering systems based on Internet technology. Aiming at the errors in the voltage-balanced frequency-to-voltage conversion process, an error calculation method based on signal chain analysis is proposed. The signal chain is classified and the error at each level is analyzed to calculate the overall error of the system, and the overall error is limited to a certain range through design. An operational amplifier error model based on feedback factor <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\beta$</tex> is proposed. The model obtains analysis capabilities through the feedback factor. Taking AD652 as an example, this paper expounds the working principle of a charge-balanced frequency-to-voltage converter, focuses on analyzing the principle errors during the conversion process and the errors generated by the device, and finally gives the theoretical errors between the frequency-to-voltage conversion process and the result.