An iterative method based on a hybrid time/frequency-domain approach is proposed in this paper to solve for the steady state of a pulse width modulated voltage-source converter (VSC) with a dq-frame closed-loop controller. The method solves the linear controller equations in the frequency domain, while solving the VSC equations using time domain techniques. The model is validated against time domain simulation results. It is shown that the hybrid time/frequency-domain approach is both highly efficient and accurate, and it provides a viable alterative to brute-force time domain simulation for large signal harmonic analysis of the VSC
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Lian et al. (2006) studied this question.
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