A Novel Carrier-Based PWM Scheme for Matrix Converters that is Easy to Implement

IEEE Trans. Power Electron.

2015

Pulse width modulation (PWM) converters generate switching common-mode voltages (CMVs) across the load terminals. These voltages cause common-mode currents, leading to bearing failure in motor loads and electromagnetic interference problems. This paper presents a generalized carrier-based PWM technique for open-end winding motor drives that completely eliminates switching CMV. The proposed method is applicable to both dual two-level voltage source inverter and dual matrix converterbased open-end winding drives. Detailed analysis shows that the carrier-based method requires significantly less computation compared to the corresponding space vector implementation. This paper also outlines the relationship between the two implementations. The carrier-based method is shown to achieve superior performance in terms of resource requirements and execution time when implemented on a field-programmable gate array-based real-time control platform. Simulation and experimental results have been presented to validate the proposed method.Index Terms-AC motor drive, carrier-based modulation, common-mode voltage (CMV), dual two-level inverter, dual matrix converter (MC), open-end winding drive, pulse width modulation (PWM).

Section: Introductionmentioning

confidence: 99%

Carrier-Based Implementation of SVPWM for Dual Two-Level VSI and Dual Matrix Converter With Zero Common-Mode Voltage

Baranwal

Basu

IEEE Trans. Power Electron.

2015

“…1) Matrix Converter PWM Generation: The matrix converter PWM signals can be generated by comparing duty ratios against a carrier [17]- [19]. In this topology, each of the 9 switches is assigned a duty ratio according to [20], [21]. The duty ratios before inversion are shown in Fig.…”

Section: B Three Phase Inputmentioning

confidence: 99%

“…Similarly V c is taken as 3 2 V a because as mentioned earlier when V c > 3 2 V a , φ is adjusted to maintain the average of v 2 (t) equal to 3 2 V a . The power reference in three phase is not multiplied by sin 2 (2πf 1 t) contrary to the single phase case because the modulation scheme in [20] inherently produces current in phase with the input voltages.…”

Section: B Three Phase Inputmentioning

confidence: 99%

Universal utility interface for Plug-in Hybrid electric vehicles with vehicle-to-grid functionality

Weise

Mohapatra

IEEE PES General Meeting

2010

This paper proposes a novel topology for Electrical Vehicles and Plug-in Hybrid Electrical Vehicles with controllable power factor with 3-phase input and unity power factor with single phase input. The proposed on-board topology provides bidirectional power flow to/from the grid, low weight, low volume, and isolation. A control scheme is devised and a complete simulation of power control is performed over varying loads, varying input voltages, three phase or single phase input, and switching schemes. Simulation results are presented that demonstrate the ability to control power flow and synthesize the grid currents to be sinusoidal.

“…Carrier based PWM strategies can be derived from the general space vector theory of a converter to reduce the number of calculations as seen in [10] for a two level inverter. Carrier based strategies have also been studies for more complex converter topologies [11]- [13] as they could be simpler than space vector approach and provide a better insight about the relation of duty ratios of converter switches to input and output voltages.…”

Section: Introductionmentioning

confidence: 99%

An alternative carrier based implementation of Space Vector PWM for dual matrix converter drive with common mode voltage elimination

Baranwal

Basu

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

2014

This paper presents a carrier based implementation of Space Vector Pulse Width Modulation (SVPWM) of dual matrix converters (MCs) using synchronously rotating vectors. Usage of only synchronously rotating vectors ensures the elimination of differential and average common mode voltages which lead to circulating currents and electromagnetic interference (EMI) problems respectively. The proposed strategy is an alternative way to achieve SVPWM, but it doesn't involve the knowledge of space vectors once it is derived. Also, it avoids any trigonometric and division operations that could be needed to implement the SVPWM using the general space vector approach.