UM
Proposed unbalanced control strategy for thyristor controlled LC-coupling hybrid active power filter (TCLC-HAPF)
Wang L.; Wong M.-C.; Lam C.-S.
2019
AbstractThis chapter proposes a control strategy for a three-phase three-wire thyristor controlled LC-coupling hybrid active power filter (TCLC-HAPF), which can balance active power and compensate reactive power and harmonic current under unbalanced loading. Compared with TCLC-HAPF with conventional control strategy, active power filters (APFs) and hybrid active power filters (HAPFs), which either fail to perform satisfactory compensation or require high rating active inverter part for unbalanced compensation, a control strategy was proposed for TCLC-HAPF to operate with a small rating active inverter part for a variety of loads with satisfactory performance. The control idea is to provide different firing angles for each phase of the thyristor controlled LC-coupling part (TCLC) to balance active power and compensate reactive power, while the active inverter part aims to compensate harmonic current. Firstly, the required different TCLC impedances are deduced. Then, independent firing angles referenced to the phase angle of voltage across TCLC are calculated. After angle transformations, final firing angles referenced to phase angle of load voltage are obtained. In this chapter, a novel controller for TCLC-HAPF under unbalanced loading is proposed. Simulation and experimental results are provided to verify the effectiveness of the proposed controller in comparison with a state-of-the-art controller.
KeywordActive power Current harmonics Hybrid active power filter (HAPF) Reactive power Thyristor controlled LC-coupling hybrid active power filter (TCLC-HAPF) Unbalanced compensation
DOI10.1007/978-981-10-8827-8_5
URLView the original
Pages103-127
Language英語
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Document TypeBook
CollectionUniversity of Macau
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Wang L.,Wong M.-C.,Lam C.-S.. Proposed unbalanced control strategy for thyristor controlled LC-coupling hybrid active power filter (TCLC-HAPF)[M],2019.
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