A DSP-based variable AC power source

Kay‐Soon Low

doi:10.1109/19.744655

A DSP-based variable AC power source

1998-01-01

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Kay‐Soon Low *

DOI：10.1109/19.744655

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This paper presents the development of a single-phase ac power source. The power source described in this paper is capable of providing a stable ac voltage with variable amplitude and variable frequency over a wide range. Moreover, it can generate various high-quality low-frequency arbitrary waveforms, This is achieved by applying advanced digital control techniques to perform closed-loop control of the single-phase inverter used in the circuit. In this system, a high-performance digital signal processor has been used to realize the discrete-time sliding-mode control strategy. This leads to a system that is robust with respect to system parameter variations and external disturbances. Consequently, high-quality output waveforms can be maintained despite dynamic loading conditions, Some experimental results are demonstrated.

Keyword:

digital signal processors

discrete-time system

power supplies

pulsewidth modulated inverters

variable-structure systems

A DSP-based variable AC power source

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