Simple three-level neutral point voltage balance control strategy based on SVPWM

Gong, Bin; Song, Cheng; Qin, Yi

doi:10.2478/aee-2013-0002

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…It could also not provide the acceptable bal-anced output voltage when the load unbalance was higher than 10%. The three-level NPC converter can compensate the voltage unbalance between the poles using additional control algorithms [22][23][24]. Figure 6b shows the simulation results of a three-level NPC converter with the load unbalance and voltage unbalance control algorithm.…”

Section: Load Unbalance Between Polesmentioning

confidence: 99%

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

Choi

Cha

et al. 2022

Energies

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A DC microgrid has many advantageous features, such as low power losses, zero reactive power, and a simple interface with renewable energy sources (RESs). A bipolar DC microgrid is also highlighted due to its high-power quality, improved reliability, and enhanced system efficiency. However, the bipolar DC microgrid has high DC bus voltage fluctuation due to the load power unbalance between the poles. Therefore, this paper analyzes the DC bus voltage fluctuation that can occur in the bipolar DC microgrid. An autonomous grid voltage regulation method is introduced to regulate the DC bus voltage of a bipolar DC microgrid using distributed energy storage systems (ESSs). The proposed grid voltage regulation scheme using the distributed ESSs could regulate DC bus voltage in real time, regardless of the structure of the DC microgrid without external communication. Lastly, experimental results using a lab-scale bipolar DC microgrid prototype verified the proposed method.

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Section: Load Unbalance Between Polesmentioning

confidence: 99%

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

Choi

Cha

et al. 2022

Energies

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“…Several papers on the flying capacitor inverter CFCI) and diode clamped inverter CDCI) presents methods for voltage balancing with feedback control [1][2][3][4][5][6]. This paper presents a method for capacitor voltage balancing for FCI and DCI without feedback control.…”

Section: Introductionmentioning

confidence: 99%

A control scheme for multilevel inverter

Şchiop

2015

2015 International Symposium on Signals, Circuits and Systems (ISSCS)

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This paper presents a method for obtaining the control scheme for flying capacitor three-level inverter and for the three level neutral point clamped inverter using Karnaugh-Veitch maps. The method is based on the analysis of the inverter output voltage from which the logical functions that control each switch of the inverter are derived. The logical functions are minimized using Karnaugh-Veitch maps. The control algorithm of the inverter switches is made so that the voltages on the capacitors of the inverter are balanced. The simulations were performed in OrCAD PSpice.

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“…These problems can be solved by adopting multi-level inverters (MLIs) with low switching frequency [12]. The neutral-point-clamped (NPC) converter topology has received more attention and has been extensively used in numerous applications [13,14], including medium-and highvoltage electric motor drives, static compensators (STATCOMs), and another utility type of power electronic systems for almost three decades now [15,16]. These multilevel (NPC) converters employ clamping diodes and series dc capacitors to produce ac voltage waveforms with multiple advantages: lower voltage harmonics on the alternative current side, smaller filter size, lower switching losses, lower electromagnetic interference, lower voltage stress on the semiconductor devices and lower acoustic noise.…”

Section: Introductionmentioning

confidence: 99%

Nouveau Filtre De Puissance Active Shunt Basé Sur Un Onduleur NPC À Neuf Niveaux Utilisant La Stratégie De Modulation Mc-LSPWM

CHENNAI

2024

RRST-EE

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This paper presents a novel shunt active power filter (Shunt APF) system based on a nine-level neutral point clamped (NPC) inverter, which can reduce current harmonics under various nonlinear loads. These loads can introduce harmonic currents within the system, which causes excessive power losses and alters the voltage systems' characteristics. Today, multi-level inverters are more suitable for high-voltage applications; their advantages are low harmonic distortions, low switching losses, low electromagnetic interference, and low acoustic noise. The reference signals required to compensate harmonic currents use the synchronous detection method (SDM) with phase disposition sinusoidal pulse width modulation (PD-SPWM) control due to its low complexity and superior performance. The proposed shunt APF configuration simulation is evaluated using MATLAB-Simulink and SimPowerSystem environment with inductive and capacitive non-linear loads. The simulation results show the efficiency of the proposed shunt APF in terms of harmonic compensation and power quality improvement. The results of comparative studies with other less multi-level inverters confirm the superiority of the proposed shunt APF system.

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Simple three-level neutral point voltage balance control strategy based on SVPWM

Cited by 14 publications

References 10 publications

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems

A control scheme for multilevel inverter

Nouveau Filtre De Puissance Active Shunt Basé Sur Un Onduleur NPC À Neuf Niveaux Utilisant La Stratégie De Modulation Mc-LSPWM

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