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The theory, design, and implementation of a constant-frequency hysteresis current control for grid-connected voltage source inverter (VSI) is presented. The proposed control technique retains the benefit of the hysteresis control having fast dynamic response and tackles the drawback of the standard hysteresis control having variable switching frequency. The concept is based on predicting the current...
Inner current loop modeling of a resonant DC link inverter, soft switching combination inverter, which works in current controlled three state discrete pulse modulation mode, is proposed. The modeling method is valid for double loop feedback controlled inverters which works in other modulation mode. Equivalent analytic model is established and used for voltage regulator design. Example are given in...
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