Method for realizing microprocessor-based automatic quasi-synchronization function
A technology of automatic quasi-synchronization and realization method, which is applied in complex mathematical operations, electrical components, circuit devices, etc., and can solve problems such as synchronization point forecast errors
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[0050] The present invention will be described in detail below in conjunction with the drawings.
[0051] figure 1 It is a partial block diagram of the microcomputer automatic quasi-synchronization device used in the present invention. After the voltage on both sides of the circuit breaker is transformed by a voltage transformer, it is input to analog-to-digital conversion devices for A / D conversion after filtering and conditioning circuits. The CPU module of the device controls the frequency of A / D sampling and conversion, and continuously reads in the sampling value of the A / D conversion. The CPU device performs measurement and calculation, and performs synchronization judgment after receiving the synchronization closing command of the communication interface or the man-machine interface. If the conditions permit, the closing command output is performed through the control exit module.
[0052] The performance of the analog-to-digital conversion device directly affects the mea...
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