DC Link Capacitor Voltage Balancing in a Three-Phase Diode Clamped Inverter Controlled by a Direct Space Vector of Line-to-Line Voltages

Bouhali, Omar; Bart, François; Berkouk, El Madjid; Saudemont, Christophe

doi:10.1109/tpel.2007.904174

Cited by 77 publications

(25 citation statements)

References 14 publications

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“…Many researchers have been paying attention to solving the dc-link capacitor voltage unbalancing of the higher voltage levels of the diode-clamped PWM inverters (with voltage levels higher than three). The existing voltage-balancing techniques can be categorized into two groups: hardware (15)- (21) and control (22)- (26) techniques. The hardware techniques can be categorized into two groups as follows: 1) Connecting the inverter in the configuration of a back-to-back system (17) .…”

Section: Introductionmentioning

confidence: 99%

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Two-Triangle Carrier SPWM Modulation For a Five-Level Diode-Clamped PWM Inverter

2015

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This paper describes two-triangle carrier sinusoidal pulse-width-modulation (SPWM) for a five-level diode-clamped PWM inverter and compares it to the SPWM-based neutral-point-clamped (NPC) PWM inverter and the original SPWM-based five-level diode-clamped PWM inverter for use in medium-voltage motor drives. The characteristics of the three techniques are compared by analysis and experiment for an adjustable-speed motor drive for pumps and blowers without a transformer. The experimental systems are 380-V 5.5-kW downscale models. The experimental systems were designed, constructed, and tested for the comparison study and were based on a 16-bit digital signal processor with the use of insulated gate bipolar transistors as switching devices. A 5.5-kW four-pole induction motor coupled with a permanent-magnet synchronous generator was used as the electrical load.

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Section: Introductionmentioning

confidence: 99%

“…For the control techniques, mainly they use redundant switch states of the inverters to balance the dc-link capacitor voltages (25) (26) . The inverters are not only for driving the output load, but also for balancing the dc-link capacitor voltages using redundant switch states.…”

Section: Introductionmentioning

confidence: 99%

Two-Triangle Carrier SPWM Modulation For a Five-Level Diode-Clamped PWM Inverter

2015

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“…The SVPWM scheme receives high DC bus utilization and low harmonic distortion in output voltage. Compared to CBM, the NP potential can also be easily balanced [8], [9]. However, the process requires a powerful microprocessor to accomplish the heavy calculation.…”

Section: Introductionmentioning

confidence: 99%

Simplified PWM Strategy for Neutral-Point-Clamped (NPC) Three-Level Converter

Ye¹,

Xu²,

Li³

et al. 2014

Journal of Power Electronics

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A novel simplified pulse width modulation(PWM) strategy for neutral point clamped (NPC) three-level converter is proposed in this paper.The direct output voltage modulation is applied to reduce the calculation time. Based on this strategy, several optimized control methods are proposed. The neutral point potential balancing algorithm is discussed and a fine neutral point potential balancing scheme is introduced. Moreover, the minimum pulse width compensation and switching losses reduction can be easily achieved using this modulation strategy. This strategy also gains good results even with the unequal DC link capacitor. The modulation principle is studied in detail and the validity of this simplified PWM strategy is experimentally verified in this paper. The experiment results indicated that the proposed PWM strategy has excellent performance, and the neutral point potential can be balanced well with unequal DC link captaincies.

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“…The disadvantage of the DCI and NPC converter is the imbalance of the DC voltage capacitors. However, pulse-width modulation (PWM) control must consider the charge and discharge capacitors to balance the DC bus [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Line-to-line Voltage Space Vector Modulation for Neutral-point Clamped Multi-level Converter with DC-link Capacitor Voltage Balancing Using Redundant Vectors

Bouhali

Bart²,

Rizoug

2014

Electric Power Components and Systems

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DC Link Capacitor Voltage Balancing in a Three-Phase Diode Clamped Inverter Controlled by a Direct Space Vector of Line-to-Line Voltages

Cited by 77 publications

References 14 publications

Two-Triangle Carrier SPWM Modulation For a Five-Level Diode-Clamped PWM Inverter

Two-Triangle Carrier SPWM Modulation For a Five-Level Diode-Clamped PWM Inverter

Simplified PWM Strategy for Neutral-Point-Clamped (NPC) Three-Level Converter

Line-to-line Voltage Space Vector Modulation for Neutral-point Clamped Multi-level Converter with DC-link Capacitor Voltage Balancing Using Redundant Vectors

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