Noninvasive household load characteristic automatic extraction method and device
A technology for automatic extraction of load characteristics, applied to measuring devices, instruments, and measuring electrical variables, can solve problems such as poor scalability, significant errors, and low efficiency, and achieve the effects of avoiding errors, facilitating installation and transformation, and improving efficiency
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[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0045] Depend on figure 1 It can be seen that the non-invasive household load feature automatic extraction method described in the present invention specifically includes the following steps:
[0046] S1: Sampling the voltage and current according to the set frequency and accuracy at the monitored user's household electricity entrance;
[0047] S2: According to the real-time sampling information obtained in S1, monitor the user's household load switching operation events, that is, the monitoring active power value changes, and the change value P delta greater than the predetermined threshold P threshold , execute S3. Otherwise, continue to execute S2;
[0048] S3: Intercept the sampling data of N cycles of voltage and current before and after the active value changes, where N is a non-zero positive intege...
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