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Stationary frame current regulation of PWM inverters with zero steady-state error

2003; Institute of Electrical and Electronics Engineers; Volume: 18; Issue: 3 Linguagem: Inglês

10.1109/tpel.2003.810852

1941-0107

D.N. Zmood, D.G. Holmes,

Microgrid Control and Optimization

Current regulators for AC inverters are commonly categorized as hysteresis, linear PI, or deadbeat predictive regulators, with a further sub-classification into stationary ABC frame and synchronous d-q frame implementations. Synchronous frame regulators are generally accepted to have a better performance than stationary frame regulators, as they operate on DC quantities and hence can eliminate steady-state errors. This paper establishes a theoretical connection between these two classes of regulators and proposes a new type of stationary frame regulator, the P+Resonant regulator, which achieves the same transient and steady-state performance as a synchronous frame PI regulator. The new regulator is applicable to both single-phase and three phase inverters.