Experimental Implementation of a New Quasi-Linear Control Technique on a 1.5 kW Three-Phase Boost-Type Vienna Rectifier

Youssef, N.B.H.; Al‐Haddad, Kamal

doi:10.1109/isie.2007.4374647

Cited by 2 publications

(2 citation statements)

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“…A fixed parameter of current inner loop cannot ensure the current quality when the load current changes. Moreover, the traditional control strategies excessively increase the inductance and the switch frequency to ensure that the current works in the continuous conduction mode (CCM) . In order to reduce the volume of the converter and increase the power density, the size of the filter inductance needs to be reduced.…”

Section: Introductionmentioning

confidence: 99%

“…In order to reduce the volume of the converter and increase the power density, the size of the filter inductance needs to be reduced. Therefore, the grid current will change from CCM to the discontinuous conduction mode (DCM) with decreasing load current or inductance (this working mode will be called the mixed conduction mode (MCM), which deteriorates the grid current . However, recent studies mostly focus on the CCM, but a detailed analysis and design scheme for DCM is still lacking.…”

Section: Introductionmentioning

confidence: 99%

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QPR and duty ratio feed‐forward control for vienna rectifier of HVDC supply system

Dang

Tong

Huang

et al. 2017

IEEJ Transactions Elec Engng

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The grid current of a Vienna rectifier will change from the continuous conduction mode (CCM) to the discontinuous conduction mode (DCM) when the load current or the inductance decreases. This deteriorates the grid current. Therefore, a strategy based on the variable duty ratio feed-forward and quasi-proportional-resonant (QPR) combined control is put forward, by introducing the needed duty ratio to the original output of current inner loop, whereby the pressure of the inner loop is effectively reduced. The working mechanism of the Vienna rectifier is first analyzed. The transfer functions of CCM and DCM between duty ratio and grid current are then built. At the same time, the parallel multi-QPR harmonic compensators are adopted in the current inner loop to effectively eliminate the specific harmonic pollution. To verify the correctness and effectiveness of the proposed strategy, a 5.3-kW prototype under digital control is established. The simulation and experimental results show that both the steady and transient performance of the proposed strategy are better under the fixed current inner loop parameters, the current zero crossing distortion can be eliminated, and the current quality acquired under the transformation between CCM to DCM can be further improved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%