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DSP-based indirect-current-controlled STATCOM. Part 2: Multifunctional capabilities

DSP-based indirect-current-controlled STATCOM. Part 2: Multifunctional capabilities

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The multifunctional capabilities of a DSP-based three-phase static compensator (STATCOM) are covered. An IGBT-based voltage source inverter (VSI) with indirect-current control technique is taken as a STATCOM. Four different types of loads consisting of linear/nonlinear and single/three-phase elements are used. Fuzzy-logic-based closed-loop control of the system reduces the size of capacitor in the DC busbar of the VSI and it also imparts a good level of performance. The steady state and transient results of a laboratory prototype are given and discussed.

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