Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control
Power electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/21/5823 |
| _version_ | 1797548590011252736 |
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| author | Malte John Axel Mertens |
| author_facet | Malte John Axel Mertens |
| author_sort | Malte John |
| collection | DOAJ |
| description | Power electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source inverters in the frequency domain, taking into account the harmonic components introduced into the system from the inputs and from the nonlinear digital PWM. The most important contribution is a method for analyzing how these harmonics propagate through the nonlinear system in steady state. To enable this, an analytic model of PWM with arbitrary, multiple-frequency input is necessary. A revised model of Asymmetrical regularly-sampled double-edge PWM (AD-PWM) is proposed and its incorporation into the system model regarding sampling effects is discussed. The resulting nonlinear equation system is numerically and simultaneously solved, yielding the spectra of all relevant signals in the converter. The results are validated with time-domain simulations and with measurements, proving the effectiveness of the proposed approach. |
| first_indexed | 2024-03-10T15:01:45Z |
| format | Article |
| id | doaj.art-0d63e5c9359b42a8ba5b82a8ec28aba7 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T15:01:45Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0d63e5c9359b42a8ba5b82a8ec28aba72023-11-20T20:05:27ZengMDPI AGEnergies1996-10732020-11-011321582310.3390/en13215823Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop ControlMalte John0Axel Mertens1Institute for Drive Systems and Power Electronics, Leibniz University of Hannover, 30169 Hannover, GermanyInstitute for Drive Systems and Power Electronics, Leibniz University of Hannover, 30169 Hannover, GermanyPower electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source inverters in the frequency domain, taking into account the harmonic components introduced into the system from the inputs and from the nonlinear digital PWM. The most important contribution is a method for analyzing how these harmonics propagate through the nonlinear system in steady state. To enable this, an analytic model of PWM with arbitrary, multiple-frequency input is necessary. A revised model of Asymmetrical regularly-sampled double-edge PWM (AD-PWM) is proposed and its incorporation into the system model regarding sampling effects is discussed. The resulting nonlinear equation system is numerically and simultaneously solved, yielding the spectra of all relevant signals in the converter. The results are validated with time-domain simulations and with measurements, proving the effectiveness of the proposed approach.https://www.mdpi.com/1996-1073/13/21/5823harmonic analysispower converterspulse-width modulation (PWM)frequency-domain modelvoltage-source inverter (VSI)closed-loop control |
| spellingShingle | Malte John Axel Mertens Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control Energies harmonic analysis power converters pulse-width modulation (PWM) frequency-domain model voltage-source inverter (VSI) closed-loop control |
| title | Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control |
| title_full | Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control |
| title_fullStr | Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control |
| title_full_unstemmed | Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control |
| title_short | Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control |
| title_sort | frequency domain modeling of harmonic interactions in voltage source inverters with closed loop control |
| topic | harmonic analysis power converters pulse-width modulation (PWM) frequency-domain model voltage-source inverter (VSI) closed-loop control |
| url | https://www.mdpi.com/1996-1073/13/21/5823 |
| work_keys_str_mv | AT maltejohn frequencydomainmodelingofharmonicinteractionsinvoltagesourceinverterswithclosedloopcontrol AT axelmertens frequencydomainmodelingofharmonicinteractionsinvoltagesourceinverterswithclosedloopcontrol |