An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter

Hui Wang, Zhenxi Wu, Zhongting Tang, Hua Han, Yongheng Yang, Frede Blaabjerg

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

The active voltage clamping HERIC (AVC-HERIC) inverter can be employed in PV applications due to its high-performance in terms of low leakage currents, high efficiency, and high power density. However, maintaining a high efficiency and good power quality under reactive power injection requires retrofitting the modulation strategies. This paper thus proposes an improved modulation method for the AVC-HERIC topology. The proposed modulation scheme mainly adopts two operation modes to enable the reactive power injection. Moreover, the two operation modes can be switched according to the polarity of the reference voltage. This maintains the efficiency as when the unipolar pulse width-modulation (PWM) strategy is adopted. Additionally, in the region of the minimum pulse width limitation (MPWL), an effective compensation strategy is also proposed in this paper to improve the power quality. Simulations and experiments are performed on a 4-kW AVC-HERIC system, and the results verify the effectiveness of the proposed modulation.
OriginalsprogEngelsk
TitelProceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019)
Antal sider5
Udgivelses stedUSA
ForlagIEEE Press
Publikationsdatomar. 2019
Sider1938-1942
ISBN (Trykt)978-1-5386-8331-6
ISBN (Elektronisk)978-1-5386-8330-9
DOI
StatusUdgivet - mar. 2019
Begivenhed34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, USA
Varighed: 17 mar. 201921 mar. 2019

Konference

Konference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
LandUSA
ByAnaheim
Periode17/03/201921/03/2019
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS), Power Sources Manufacturers Association (PSMA)
NavnConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Fingerprint

Modulation
Electric potential
Power quality
Reactive power
Retrofitting
Leakage currents
Pulse width modulation
Topology
Experiments

Citer dette

Wang, H., Wu, Z., Tang, Z., Han, H., Yang, Y., & Blaabjerg, F. (2019). An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter. I Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019) (s. 1938-1942). USA: IEEE Press. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC https://doi.org/10.1109/APEC.2019.8722251
Wang, Hui ; Wu, Zhenxi ; Tang, Zhongting ; Han, Hua ; Yang, Yongheng ; Blaabjerg, Frede. / An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter. Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019). USA : IEEE Press, 2019. s. 1938-1942 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).
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title = "An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter",
abstract = "The active voltage clamping HERIC (AVC-HERIC) inverter can be employed in PV applications due to its high-performance in terms of low leakage currents, high efficiency, and high power density. However, maintaining a high efficiency and good power quality under reactive power injection requires retrofitting the modulation strategies. This paper thus proposes an improved modulation method for the AVC-HERIC topology. The proposed modulation scheme mainly adopts two operation modes to enable the reactive power injection. Moreover, the two operation modes can be switched according to the polarity of the reference voltage. This maintains the efficiency as when the unipolar pulse width-modulation (PWM) strategy is adopted. Additionally, in the region of the minimum pulse width limitation (MPWL), an effective compensation strategy is also proposed in this paper to improve the power quality. Simulations and experiments are performed on a 4-kW AVC-HERIC system, and the results verify the effectiveness of the proposed modulation.",
keywords = "AVC-HERIC, Minimum pulse width limitation (MPWL), Power quality, Pulse width modulation (PWM), PV systems",
author = "Hui Wang and Zhenxi Wu and Zhongting Tang and Hua Han and Yongheng Yang and Frede Blaabjerg",
year = "2019",
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doi = "10.1109/APEC.2019.8722251",
language = "English",
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booktitle = "Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019)",
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Wang, H, Wu, Z, Tang, Z, Han, H, Yang, Y & Blaabjerg, F 2019, An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter. i Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019). IEEE Press, USA, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, s. 1938-1942, Anaheim, USA, 17/03/2019. https://doi.org/10.1109/APEC.2019.8722251

An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter. / Wang, Hui; Wu, Zhenxi; Tang, Zhongting; Han, Hua; Yang, Yongheng; Blaabjerg, Frede.

Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019). USA : IEEE Press, 2019. s. 1938-1942 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter

AU - Wang, Hui

AU - Wu, Zhenxi

AU - Tang, Zhongting

AU - Han, Hua

AU - Yang, Yongheng

AU - Blaabjerg, Frede

PY - 2019/3

Y1 - 2019/3

N2 - The active voltage clamping HERIC (AVC-HERIC) inverter can be employed in PV applications due to its high-performance in terms of low leakage currents, high efficiency, and high power density. However, maintaining a high efficiency and good power quality under reactive power injection requires retrofitting the modulation strategies. This paper thus proposes an improved modulation method for the AVC-HERIC topology. The proposed modulation scheme mainly adopts two operation modes to enable the reactive power injection. Moreover, the two operation modes can be switched according to the polarity of the reference voltage. This maintains the efficiency as when the unipolar pulse width-modulation (PWM) strategy is adopted. Additionally, in the region of the minimum pulse width limitation (MPWL), an effective compensation strategy is also proposed in this paper to improve the power quality. Simulations and experiments are performed on a 4-kW AVC-HERIC system, and the results verify the effectiveness of the proposed modulation.

AB - The active voltage clamping HERIC (AVC-HERIC) inverter can be employed in PV applications due to its high-performance in terms of low leakage currents, high efficiency, and high power density. However, maintaining a high efficiency and good power quality under reactive power injection requires retrofitting the modulation strategies. This paper thus proposes an improved modulation method for the AVC-HERIC topology. The proposed modulation scheme mainly adopts two operation modes to enable the reactive power injection. Moreover, the two operation modes can be switched according to the polarity of the reference voltage. This maintains the efficiency as when the unipolar pulse width-modulation (PWM) strategy is adopted. Additionally, in the region of the minimum pulse width limitation (MPWL), an effective compensation strategy is also proposed in this paper to improve the power quality. Simulations and experiments are performed on a 4-kW AVC-HERIC system, and the results verify the effectiveness of the proposed modulation.

KW - AVC-HERIC

KW - Minimum pulse width limitation (MPWL)

KW - Power quality

KW - Pulse width modulation (PWM)

KW - PV systems

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U2 - 10.1109/APEC.2019.8722251

DO - 10.1109/APEC.2019.8722251

M3 - Article in proceeding

SN - 978-1-5386-8331-6

SP - 1938

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BT - Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019)

PB - IEEE Press

CY - USA

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Wang H, Wu Z, Tang Z, Han H, Yang Y, Blaabjerg F. An Improved Modulation Strategy for the Active Voltage Clamping HERIC Inverter. I Proceedings of the IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019). USA: IEEE Press. 2019. s. 1938-1942. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2019.8722251