Current Regulation of Pwm Inverter Using Stationary Frame Regulator
نویسنده
چکیده
PWM Inverters need an internal current feedback loop to maintain desired current level. The current feedback scheme helps in providing desired current to ac loads connected to the inverter. The performance of the inverter depends largely on the quality of the applied current control strategy. Various current regulation schemes include stationary frame regulators and synchronous frame regulators. The synchronous frame regulator is more complex, as it requires a means of transforming a measured stationary frame ac current to rotating frame dc quantities, and transforming the resultant control action back to the stationary frame for execution. This information can introduce errors if the synchronous frame identification is not accurate. In this paper, the stationary frame regulator developed for single-phase system using Fuzzy logic controller. Regulation of current waveform is achieves accurate current regulation and zero steady state error. Key words: FLC fuzzy logic controller SPWM sinusoidal pulse width modulation ? E derivative error.
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