Open-loop response of classical and multirate modulators for multicell active power filters
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Universidade Federal de Minas Gerais
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Sags, swells, unbalances, reactive power, and harmonic distortion are phenomena that impact the performance of the electrical grid but can be mitigated using active power filters. These power conditioners benefit from the use of multicell converter topologies since their ability to produce harmonic currents and voltages is related to the overall system bandwidth. This work compares the open-loop response of a few pulse-width modulators applied to a Flying Capacitor converter: the Naturally Sampled, the classical sampled interleaved and a recently proposed multirate one. Simulation results show that the multirate modulator can be used to increase the bandwidth of multicell active power filters since it has better dynamic performance than the classical strategy, approaching the performance of the Naturally Sampled one but without incurring overswitching.
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Eletrônica de potência, Afundamento de tensão
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Conversor Multiniveis, Multirate Modulator, Filtro Ativo de Potência, Simulation , Switching frequency , Capacitors , Bandwidth , Pulse width modulation , Active filters , Topology, Active power filters , multicell converters , multirate modulators , flying capacitor, Power Conditions , Active Power Filter , Open-loop Response , Classical Modulation , Pulse Width , Dynamic Performance , Classical Scheme , Harmonic Distortion , System Bandwidth , Filter Bandwidth , Harmonic Voltage , Attenuation , Dynamic Response , Phase Shift , Frequency Response , Phase Response , Duty Cycle , Transient Response , Switching Frequency , Modulation Scheme , Previous Scenario , Multilevel Converter , Single Update , Pulsewidth Modulation Scheme , Three-phase Converter , Reference Tracking , Power Quality , Output Frequency , Double Cycle , Apparent Frequency
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https://ieeexplore.ieee.org/document/10408346