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Conference Paper: Harmonic elimination for constrained optimal PWM
Title | Harmonic elimination for constrained optimal PWM |
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Authors | |
Keywords | Differential evolution Harmonic elimination Pulse-width modulation Transcen-dental equations Well-separated switching instances |
Issue Date | 2004 |
Citation | IECON Proceedings (Industrial Electronics Conference), 2004, v. 3, p. 2702-2705 How to Cite? |
Abstract | The Selected Harmonic Elimination (SHE) Pulse-Width Modulation (PWM) inverter eliminates low-order harmonics by optimizing the distribution of switching angles and can generate high quality output waveforms. The goal of optimal SHE-PWM is to select the switching instances (angles) in such a way that a waveform with a particular characteristic is obtained and a certain criterion is minimized. To keep the results realizable in hardware, it is required that the computed consecutive switching angles are sufficiently distant from each other. This well-separation feature is not controlled by classical SHE-PWM algorithms. In this paper, a new algorithm is proposed to solve the SHE-PWM problem with a constraint that any two consecutive solutions are well separated. The algorithm first transforms the problem into a constrained optimization problem, then uses the Differential Evolution (DE) algorithm to find the roots with the necessary distance of separation. Since the obtained switching angles are reasonably distant from each other, the inverter switches have enough time to operate and can properly finish the switching transitions. Essentially, the proposed method computes the best possible tradeoff between the maximum error for system performance and the minimum distance between consecutive switching angles under certain constraints and it is robust. ©2004 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/336022 |
DC Field | Value | Language |
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dc.contributor.author | Huang, Han | - |
dc.contributor.author | Hu, Shiyan | - |
dc.contributor.author | Czarkowski, Dariusz | - |
dc.date.accessioned | 2024-01-15T08:22:06Z | - |
dc.date.available | 2024-01-15T08:22:06Z | - |
dc.date.issued | 2004 | - |
dc.identifier.citation | IECON Proceedings (Industrial Electronics Conference), 2004, v. 3, p. 2702-2705 | - |
dc.identifier.uri | http://hdl.handle.net/10722/336022 | - |
dc.description.abstract | The Selected Harmonic Elimination (SHE) Pulse-Width Modulation (PWM) inverter eliminates low-order harmonics by optimizing the distribution of switching angles and can generate high quality output waveforms. The goal of optimal SHE-PWM is to select the switching instances (angles) in such a way that a waveform with a particular characteristic is obtained and a certain criterion is minimized. To keep the results realizable in hardware, it is required that the computed consecutive switching angles are sufficiently distant from each other. This well-separation feature is not controlled by classical SHE-PWM algorithms. In this paper, a new algorithm is proposed to solve the SHE-PWM problem with a constraint that any two consecutive solutions are well separated. The algorithm first transforms the problem into a constrained optimization problem, then uses the Differential Evolution (DE) algorithm to find the roots with the necessary distance of separation. Since the obtained switching angles are reasonably distant from each other, the inverter switches have enough time to operate and can properly finish the switching transitions. Essentially, the proposed method computes the best possible tradeoff between the maximum error for system performance and the minimum distance between consecutive switching angles under certain constraints and it is robust. ©2004 IEEE. | - |
dc.language | eng | - |
dc.relation.ispartof | IECON Proceedings (Industrial Electronics Conference) | - |
dc.subject | Differential evolution | - |
dc.subject | Harmonic elimination | - |
dc.subject | Pulse-width modulation | - |
dc.subject | Transcen-dental equations | - |
dc.subject | Well-separated switching instances | - |
dc.title | Harmonic elimination for constrained optimal PWM | - |
dc.type | Conference_Paper | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-20544443612 | - |
dc.identifier.volume | 3 | - |
dc.identifier.spage | 2702 | - |
dc.identifier.epage | 2705 | - |