Unbalanced DC-Link voltage regulation in a back-to-back 3-level PWM converter for a double-fed induction motor-generator

Hodder, A.; Simond, J.-J.; Schwery, A.

doi:10.1049/ip-epa:20045170

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…The complete model of the electrical system comprises a doubly-fed induction motor-generator, with three-level Voltage Source Inverters (VSI) cascade in the rotor side [16], [22].…”

Section: Modeling Of the Power Plantmentioning

confidence: 99%

Optimization of the start-up time of a variable speed pump-turbine unit in pumping mode

Pannatier¹,

Kawkabani

Nicolet³

et al. 2012

2012 XXth International Conference on Electrical Machines

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“…The complete model of the electrical system comprises a doubly-fed induction motor-generator, with three-level Voltage Source Inverters (VSI) cascade in the rotor side [16], [22].…”

Section: Modeling Of the Power Plantmentioning

confidence: 99%

Optimization of the start-up time of a variable speed pump-turbine unit in pumping mode

Pannatier¹,

Kawkabani

Nicolet³

et al. 2012

2012 XXth International Conference on Electrical Machines

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“…So these strategies cannot fully play the advantage of the converter. Moreover, the NP current in the rectifier side or inverter side where NP potential is not controlled could generate adverse effect to the NP potential [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Novel Neutral-Point Potential Balance Strategy for Three-Level NPC Back-to-Back Converter Based on the Neutral-Point Current Injection Model

Wang

Liu

Wang

et al. 2015

Mathematical Problems in Engineering

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The neutral-point (NP) potential balance control in three-level neutral-point-clamped (NPC) back-to-back converter is a research nodus. Its current strategies are the same as the strategies of a single three-level NPC converter. But the strategies do not give full play to its advantages that the neutral-point current can only flow through the connected midlines in both sides of the converter but does not flow through the DC-bus capacitors. In this paper, firstly the NP potential model based on the NP current injected is proposed. It overcomes numerous variable constraints and mutual coupling in the conventional model based on the zero-sequence voltage injected. And then on this basis, three NP-potential balance control algorithms, unilateral control, bilateral independent control, and bilateral coordinated control, are proposed according to difference requirements. All of these algorithms use the midlines rather than the DC-bus capacitors to flow the NP current as much as possible. Their control abilities are further quantitatively analyzed and compared. Finally, simulation results verify the validity and effectiveness of these algorithms.

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“…The topologies of multilevel converters can be classified into neutral-diode-clamp (NPC) converter, capacitorclamped converter and series-connected H-bridge converter. NPC topologies have been proposed and successfully used in high-power motor drive and utility applications, The advantages of the NPC converters are the improvement of waveform devices, It is very difficult to keep the upper and lower DC -link capacitor voltages balanced to guarantee the multilevel operation of the converter [7][8][9][10]. Capacitor-clamped topologies were proposed for high-voltage motor and active power filters, The capacitor-clamped converter is an alternative structure used to obtain multi-level waveforms on the AC terminals, The flying capacitor multilevel converter does not require isolated DC sides and additional clamping diodes, Snubberless operation is possible and easy to expand to multilevel.…”

Section: Introductionmentioning

confidence: 99%

A Novel Hybrid Clamped Three-level Converter

Yue

Kekun²,

Lin³

2015

IJHIT

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A novel hybrid clamped dual-PWM three-level converter topology is proposed for induction motor drives in this paper. The switching states of hybrid clamp three-level converters increase to sixty-four from twenty-seven switching states of diode clamp threelevel converters. In order to realize optimization of its redundant voltage space vectors by detecting voltage of clamp capacitor and difference of capacitor voltage in DC side, Generating an optimized switching pattern, The hybrid clamped three-level converter increases the voltage levels number, reducing the harmonics associated to the commutation frequency and limiting the dv/dt by all the switches . It can quickly balance the DC voltage, Realized system of 4-Quardant Running. the control circuit and main circuit was designed with DSP and CPLD, experimentation results proved it is very effective and practicability.

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Unbalanced DC-Link voltage regulation in a back-to-back 3-level PWM converter for a double-fed induction motor-generator

Cited by 14 publications

References 8 publications

Optimization of the start-up time of a variable speed pump-turbine unit in pumping mode

Optimization of the start-up time of a variable speed pump-turbine unit in pumping mode

A Novel Neutral-Point Potential Balance Strategy for Three-Level NPC Back-to-Back Converter Based on the Neutral-Point Current Injection Model

A Novel Hybrid Clamped Three-level Converter

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