A DC-Link Modulation Scheme With Phase-Shifted Current Control for Harmonic Cancellations in Multidrive Applications

Yang, Yongheng; Zare, Firuz; Blaabjerg, Frede

doi:10.1109/tpel.2015.2472641

Cited by 29 publications

(34 citation statements)

References 12 publications

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“…The current modulation method is based on the calculation of a pre-programmed switching pattern for the DC-link current to achieve the elimination of specific harmonics in the grid currents [5], [6]. In this approach, a DC-link current modulation scheme is generated by adding or subtracting the phase-displaced current levels.…”

Section: B Current Modulation Methodsmentioning

confidence: 99%

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A Modular Active Front-End Rectifier With Electronic Phase Shifting for Harmonic Mitigation in Motor Drive Applications

Zare

Blaabjerg

2017

IEEE Trans. on Ind. Applicat.

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Abstract-In this paper, an electronic phase-shifting strategy has been optimized for a multi-parallel configuration of linecommutated rectifiers with a common dc-bus voltage used in motor drive application. This feature makes the performance of the system independent of the load profile and maximizes its harmonic reduction ability. In order to further reduce the generated low order harmonics, a dc-link current modulation scheme and its phase shift values of multi-drive systems have been optimized. Analysis, simulations and experiments have been carried out to verify the proposed method.Index Terms-Active filter, adjustable speed drive, electronic inductor, harmonic elimination, rectifier.

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Section: B Current Modulation Methodsmentioning

confidence: 99%

“…2. Architecture of the multi-rectifier front-end system based on: (a) multi-drive configuration [5], [6], [8], [12] (b) proposed common dc-bus configuration. Table I for the applied system parameters).…”

mentioning

confidence: 99%

A Modular Active Front-End Rectifier With Electronic Phase Shifting for Harmonic Mitigation in Motor Drive Applications

Zare

Blaabjerg

2017

IEEE Trans. on Ind. Applicat.

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“…Hereafter, according to (6) and (8) it is possible to achieve harmonic cancellation by calculating the harmonic magnitude of the total input current and solving …”

Section: B Current Modulation Methodsmentioning

confidence: 99%

A multi-pulse front-end rectifier system with electronic phase-shifting for harmonic mitigation in motor drive applications

Zare

Blaabjerg

2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-In this paper, an electronic phase-shifting strategy has been optimized for a multi-parallel configuration of linecommutated rectifiers with a common dc-bus voltage used in motor drive application. This feature makes the performance of the system independent of the load profile and maximizes its harmonic reduction ability. To further reduce the generated low order harmonics, a dc-link current modulation scheme and its phase shift values of multi-drive systems have been optimized. Analysis and simulations have been carried out to verify the proposed method.

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“…The detuned reinjection system will provide additional current harmonics into the DC-link. The other group of methods, called the cancelation methods, was proposed for multidrive vehicles (most of them are high and medium power traction vehicles) [11] [12] and for stationary, gridconnected applications [13]. Application of these techniques requires precise parallel cooperation of a minimum two VSI's.…”

Section: Side Current Harmonics Limitsmentioning

confidence: 99%

“…Their frequencies can be described as follows: (12) travelling 'T': f If_t = p ¢ f c §3 ¢ f fal 8 p = 1, 2, 3… (13) The frequencies of I cat current harmonics are identical as for the two-level inverter and can be described by formulas (10,11).…”

Section: 2mentioning

confidence: 99%

Analysis of disturbing effect of 3 kV DC supplied traction vehicles equipped with two-level and three-level VSI on railway signalling track circuits

Steczek

Szeląg

Chatterjee

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Electric traction vehicles cooperating with a 3kV DC traction system and equipped with drive systems based on voltage source inverters are the most significant sources of disturbances for a railway signalling system. Every traction vehicle to be authorised for operation on railway lines must fulfil the limits imposed on current harmonics magnitudes and those provided by railway operators. The solution introduced for prototypes of most modern traction drives is to replace the two-level inverters with three-level topology. Therefore, it is essential to establish the influence of the new solution on the railway signalling system. This paper presents a comparative analysis between simulation results delivered for two and three-level traction drive system regarding generation of disturbing current harmonics. Two types of VSI modulation techniques were taken under consideration: sinusoidal PWM (SPWM) and a new one, proposed by the authors, based on selective harmonic elimination (SHE). Furthermore, the authors presented application of one of the SHE based optimization techniques for shaping the EMU's (electric multiple unit) DC side input current harmonics spectrum in order to meet the required limits. The described technique is based on off-line generation of a set of solutions for each of the VSI operating points and selection of the best solution for the assumed criteria. The applied simulation models and the concept of SHE control were verified in a laboratory by means of a low-power drive stand. Using the three-level inverter in traction drives system results in less current harmonics than using two-level topology without modification of the modulation technique. Thus, it does not guarantee fulfilling all limits assumed in this paper. The proposed modulation technique allows for fulfilling the limits, and the technical implementation of the proposed technique in a traction drive system will be considered in future studies. fore, it generates less current and torque harmonics, resulting in lesser power losses and increased life-time of the drive. Another problem is developing a control strategy to make this type of inverters suitable for operation in traction and industrial environment. The application of a direct torque control (DTC) strategy for this purpose was presented in [6].The preferred topology of the three-level inverter for traction application seems to be the neutral point clamped NPC topology (Fig. 3b). This solution requires an additional modification of modulation to eliminate the neutral point voltage fluctuations [5,7,8].

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A DC-Link Modulation Scheme With Phase-Shifted Current Control for Harmonic Cancellations in Multidrive Applications

Cited by 29 publications

References 12 publications

A Modular Active Front-End Rectifier With Electronic Phase Shifting for Harmonic Mitigation in Motor Drive Applications

A Modular Active Front-End Rectifier With Electronic Phase Shifting for Harmonic Mitigation in Motor Drive Applications

A multi-pulse front-end rectifier system with electronic phase-shifting for harmonic mitigation in motor drive applications

Analysis of disturbing effect of 3 kV DC supplied traction vehicles equipped with two-level and three-level VSI on railway signalling track circuits

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