Nonzero Staircase Modulation Scheme for Switching DC-DC Boost Converter

• Published in: Journal of control science and engineering Vol. 2020; no. 2020; pp. 1 - 15
• Main Authors: Salau, Ayodeji Olalekan, Onyebuchi, Omeje Crescent, Eya, Candidus U.
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 2020; Hindawi; John Wiley & Sons, Inc; Wiley
• Subjects: Converters; Design; Efficiency; Harmonic distortion; Modulation; Pulse duration modulation; Switching; Voltage converters (DC to DC); Waveforms
• ISSN: 1687-5249; 1687-5257
• DOI: 10.1155/2020/8347462

This paper presents a novel modulation scheme known as the nonzero staircase modulation scheme for switching DC-DC boost converters. This modulation scheme generates two distinct pulse trains/firing signals when a 50 Hz nonzero staircase modulating signal is compared with a 1.5 kHz triangular wave signal. Unlike the conventional modulation schemes, the proposed novel modulation scheme provides two distinctive trains of pulse-width modulated signals for mitigating low and high harmonics. It also possesses 0.56% total harmonic distortions (THD) of the output voltage waveform system, a power output of 4591 W, and THD of 1.12% in the DC-DC boost converter system. It has a simple design and low power loss of 209 W. The proposed scheme enables the single switch boost DC-DC converter used to have an efficiency of 96%. The proposed scheme can be applied in single switch or double switch boost DC-DC converter based-hospital equipment.