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The sampling points in one cycle of 400 Hz inverter is 8 times less than that of 50 Hz inverter, resulting in lower control accuracy and larger static error in 400 Hz power supply system. According to the characteristics of the 400 Hz inverter, this paper establishes a mathematical model for single-phase solid-static power supply system. The changes in line impedance and load can be considered as...
In many aspects, harmonics will cause a series of problems such as electromagnetic interference (EMI), mechanical vibration and harsh noise. Especially when the amplitude of harmonics is high, more serious problem will arise. For these reasons, this paper has made an analysis of the theory of random carrier modulation and presented a practical random carrier modulation technique which is applied to...
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