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- Title
Second‐harmonic current reduction of dual active bridge with triple‐phase shift in two‐stage single‐phase inverter system.
- Authors
Li, Jin; Zhang, Yuming; Tang, Weiyi
- Abstract
This article proposes a method to effectively suppress second‐harmonic current (SHC) of dual active bridge (DAB) converter, which adopts the triple‐phase shift (TPS) modulation strategy, in two‐stage single‐phase inverter system. Load current feedforward control with twice the output voltage frequency notch filter inserted is introduced to ensure the dynamic response performance. The averaged model of the system is established to analyse the influence of output impedance of front‐end DAB converter on SHC from the perspective of impedance. The proposed method does not need to consider the accuracy of the intermediate bus capacitance. Finally, an experimental prototype was established to verify the correctness and effectiveness of the proposed SHC reduction method.
- Subjects
NOTCH filters; ELECTRIC capacity; VOLTAGE control; VOLTAGE
- Publication
IET Power Electronics (Wiley-Blackwell), 2024, Vol 17, Issue 7, p824
- ISSN
1755-4535
- Publication type
Article
- DOI
10.1049/pel2.12695