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Published byKerry Terry Modified over 6 years ago
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Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Monitoring Solar Home Systems With Pulse Width Modulation Charge Control J. Sol. Energy Eng. 2011;133(2): doi: / Figure Legend: Series of scans of PV current and voltage under PWM made by the data logger. The combination of duty cycle, scan rate, and PWM frequency cause distinct patterns in measurements, demonstrating that the relationship between scan rate and PWM frequency can produce a nonrepresentative sample of measurements. In the upper graph, the scan rate was 920 ms, the PWM frequency was 9.25 Hz, and the duty cycle was 44%. The lower graph has a scan rate of 930 ms, PWM frequency of 9.25 Hz, and duty cycle of 43%.
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