Medium-Voltage 12-Pulse Converter: Output Voltage Harmonic Compensation Using a Series APF

Hamad, Mostafa S.; Masoud, Mahmoud I.; Williams, B.W.

doi:10.1109/tie.2013.2248337

Cited by 74 publications

(32 citation statements)

References 26 publications

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“…An ac-dc converter, capable of applying it for aircraft system has been designed using 18 pulse converter [3]. Active power filter helps in compensating harmonics in the converter [4]. This requires 12 pulse for its conversion.…”

Section: Introductionmentioning

confidence: 99%

Implementation of a low cost ac-dc converter for high and low power applications

Ilambirai¹,

Dash²,

Rayaguru³

2017

IJET

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This paper proposes an ac-dc converter that gives multiple outputs capable of feeding both high and low power applications. The input ac supply is converted to dc by a diode bridge rectifier, filtered and fed to a modified multiport converter (MPC). This paper focuses on the design of the modified multiport converter that has a cascaded combination of zeta and a buck converter. This is designed as a single input and multiple output converter (SIMO) structure which can operate two loads, one with a high power and other with a low power application, depending on the time instant. The need for opting a multiport converter, reduces the number of switches utilized, thereby reducing the switching losses in the circuit. The zeta in the MPC boosts the input voltage and the buck converter reduces the input voltage and is accordingly fed to the need of the load. The design of the components have been analysed through steady state. MATLAB Simulink has been used to simulate the converter circuit and the varied outputs of the zeta and buck modes are compared. A hardware prototype of the ac-dc converter has been implemented and their results have been shown.

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Section: Introductionmentioning

confidence: 99%

Implementation of a low cost ac-dc converter for high and low power applications

Ilambirai¹,

Dash²,

Rayaguru³

2017

IJET

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“…Moreover, the cross-coupling terms between dq axis and synchronous frame system have not been taken into account. Many other attempts are proposed and discussed several techniques in order to improve the efficiency and the performance of APF [24][25][26][27][28][29][30][31][32][33][34][35]. In [36], Vatani et al proposed finite control set MPC based on p-q theory to control a three phase Neutral Point Clamped multi-level converter to act as a shunt APF.…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control for Shunt Active Power Filter in Synchronous Reference Frame

Al-Othman¹,

AlSharidah²,

Ahmed³

et al. 2016

Journal of Electrical Engineering and Technology

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-This paper presents a model predictive control for shunt active power filters in synchronous reference frame using space vector pulse-width modulation (SVPWM). The three phase load currents are transformed into synchronous rotating reference frame in order to reduce the order of the control system. The proposed current controller calculates reference current command for harmonic current components in synchronous frame. The fundamental load current components are transformed into dc components revealing only the harmonics. The predictive current controller will add robustness and fast compensation to generate commands to the SVPWM which minimizes switching frequency while maintaining fast harmonic compensation. By using the model predictive control, the optimal switching state to be applied to the next sampling time is selected. The filter current contains only the harmonic components, which are the reference compensating currents. In this method the supply current will be equal to the fundamental component of load current and a part of the current at fundamental frequency for losses of the inverter. Mathematical analysis and the feasibility of the suggested approach are verified through simulation results under steady state and transient conditions for non-linear load. The effectiveness of the proposed controller is confirmed through experimental validation.

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“…Based on the IEEE standards 1159-2009 and 1547.4 [3,15], the voltage unbalance factor (VUF) and the voltage total harmonic distortion (THD) for sensitive loads should be maintained below 2% and 5%, respectively. The parallel and/or series active power filters (APFs) are usually utilized to compensate voltage unbalance and harmonics in the distribution networks [16]. However, it is not practical to install pure APFs in small islanded DG system.…”

Section: Introductionmentioning

confidence: 99%

Small-Signal Modeling of the PVR-Based AD Scheme and Controller Design for Three-Phase Standalone DG System

Shen

Han

Lü³

et al. 2016

Journal of Electrical Engineering and Technology

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-This paper presents the small-signal state-space modeling and a new multifunctional multi-loop control strategy for three-phase inverter-based islanded DG systems under unbalanced and/or nonlinear load conditions. The proposed control methodology utilizes the parallel virtual resistance (PVR)-based active damping (AD) method for the islanded DG system using an extra feedback capacitor current shaping loop in the stationary reference frame to provide an AD to suppress the resonance-peak of the LC filter and improve both steady-state and transient performances, the inner voltage and current controllers are based on an enhanced proportional resonant (PR) structure to achieve zero steady-state error, and multi-resonant harmonic compensator (MRHC) plus PR controller to prevent low-order load current harmonics to distort the output voltage. The proposed small-signal model of the islanded DG system with multi-loop control strategy in the stationary reference frame is presented. Moreover, an enhanced delay compensation (EDC) scheme based on two integrators of the discrete PR controller is presented to improve stability margins with a higher accuracy compared with the existing methods. Then, a detailed systematic controller parameters design procedure is presented. Finally, simulation and experimental results are provided to validate the effectiveness of the proposed strategy.

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Medium-Voltage 12-Pulse Converter: Output Voltage Harmonic Compensation Using a Series APF

Cited by 74 publications

References 26 publications

Implementation of a low cost ac-dc converter for high and low power applications

Implementation of a low cost ac-dc converter for high and low power applications

Model Predictive Control for Shunt Active Power Filter in Synchronous Reference Frame

Small-Signal Modeling of the PVR-Based AD Scheme and Controller Design for Three-Phase Standalone DG System

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