Linear and Sliding-Mode Control Design for Matrix Converter-Based Unified Power Flow Controllers

Monteiro, José; Silva, Fernando; Pinto, Sónia; Palma, J.

doi:10.1109/tpel.2013.2282256

Cited by 77 publications

(37 citation statements)

References 27 publications

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“…Both Results of Figures 8b and 9a show line and input direct matrix converter currents in steady-state, for PRef = 0.4 pu, QRef = 0.2 pu. Line currents are almost sinusoidal with small ripple content, while matrix currents shows some ripple content as usual in DMC [15]. instants.…”

Section: Simulation and Experimental Evaluationmentioning

confidence: 83%

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A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters

et al. 2017

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This paper proposes a Direct Matrix Converter operating as a Unified Power Flow Controller (DMC-UPFC) with an advanced control method for UPFC, based on the Lyapunov direct method, presenting good results in power quality assessment. This control method is used for real-time calculation of the appropriate matrix switching state, determining which switching state should be applied in the following sampling period. The control strategy takes into account active and reactive power flow references to choose the vector converter closest to the optimum. Theoretical principles for this new real-time vector modulation and control applied to the DMC-UPFC with input filter are established. The method needs DMC-UPFC dynamic equations to be solved just once in each control cycle, to find the required optimum vector, in contrast to similar control methods that need 27 vector estimations per control cycle. The designed controller's performance was evaluated using Matlab/Simulink software. Controllers were also implemented using a digital signal processing (DSP) system and matrix hardware. Simulation and experimental results show decoupled transmission line active (P) and reactive (Q) power control with zero theoretical error tracking and fast response. Output currents and voltages show small ripple and low harmonic content.

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Section: Simulation and Experimental Evaluationmentioning

confidence: 83%

“…where i qMRef is the value of i qM (control input) that satisfies (15). Solving (17) for the reference value i qMRef of the q component of the matrix current i qM , Equation (18) is obtained:…”

Section: Input Reactive Power Controlmentioning

confidence: 99%

A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters

et al. 2017

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“…This topology comprises of series of power transformation cells can be essentially scaled [7][8][9]. The mix of capacitors and switches pair combined is called an H-bridge and gives the dissimilar input DC voltage for each H-bridge.…”

Section: Doi: 1018535/ijecs/v6i333mentioning

confidence: 99%

“…The mix of capacitors and switches pair combined is called an H-bridge and gives the dissimilar input DC voltage for each H-bridge. It comprises of H-bridge cells and each cell can give the three unique voltages like zero, positive DC and negative DC voltages [8]. The cost and weight of the inverter are lesser than those of the two inverters.…”

Section: Doi: 1018535/ijecs/v6i333mentioning

confidence: 99%

Transformerless UPFC Using Multilevel Inverter

Priya

Kumar²

2017

IJECS

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Abstract-This paper proposes transformer-less Unified Power Flow Controller (UPFC) which can be able to control the parameters of the transmission line. It incorporates back to back inverter that requires large transformers for power flow injection. The transformers are somewhat bulky, very costly and introduce high losses due to magnetic properties of the material used for the erection of core. To conquer this difficulty, a totally transformer-less UPFC is proposed in this work. The proposed controller will reduce the cost and space when compared to the traditional UPFC. A multilevel configuration technique will be used to decrease the total harmonic content. The proposed configuration requires a separate dc source for every level. To reduce the switch count and to eliminate separate dc sources, this multilevel configuration can be further modified. This paper focuses on the performance of transformer-less UPFC involving Fundamental Frequency Modulation (FFM) for reducing the Total Harmonic Distortion (THD) and increasing the efficiency. The proposed UPFC is simulated as a result of using MATLAB Simulink.

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“…Compared to the conventional back to back topology, no additional sensors or regulation loops are required to control the voltage across the dc-link [2] [3] [4]. Over the last years, several research works have showed that matrix converters are suitable for various modern industrial applications such as distributed power generation systems [5] [6], multi-drive systems [7], variable speed drives [8] [9], wind energy [10], unified power flow controller (UPFC) [11], etc.…”

Section: Introductionmentioning

confidence: 99%

Unity Power Factor Operation of Indirect Matrix Converter Tied to Unbalanced Grid

Hamouda

Blanchette

Al‐Haddad

2016

IEEE Trans. Power Electron.

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Abstract-This paper presents a new control method for Indirect Matrix Converter operating under unbalanced grid voltages. The proposed method aims to achieve balanced output voltages as well as a near unity input power factor operation. First, an opportune reference current accurately generated, and a proportional integral resonant controller are designed in a dq reference frame that is synchronized with the positive sequence of the grid voltages so as to achieve a perfect tracking of input reactive power reference. Then, a real-time estimator of the virtual dc-link voltage is developed with the aim to provide balanced output voltages; therefore an almost constant active power free of low frequency ripple is supplied from the grid. Experimental results are presented to verify the feasibility and effectiveness of the proposed control method.

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Linear and Sliding-Mode Control Design for Matrix Converter-Based Unified Power Flow Controllers

Cited by 77 publications

References 27 publications

A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters

A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters

Transformerless UPFC Using Multilevel Inverter

Unity Power Factor Operation of Indirect Matrix Converter Tied to Unbalanced Grid

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