An Overlap-Time Compensation Method for Current-Source Space-Vector PWM Inverters

Geng, Yiwen; Deng, Renxiong; Wang, Dong; Wang, Kai; Liu, Haiwei; Wu, Xiaojie

doi:10.1109/tpel.2017.2707299

Cited by 41 publications

(10 citation statements)

References 14 publications

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“…In the simulation, an overlap time value equal to zero was assumed. A detailed analysis of the influence of the overlap time effect on the operation of the SV-PWM current source inverter has been presented [21].…”

Section: Model and Simulation Resultsmentioning

confidence: 99%

Nonlinear Control of a Doubly Fed Generator Supplied by a Current Source Inverter

Blecharz

Morawiec

2019

Energies

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Nowadays, wind turbines based on a doubly fed induction generator (DFIG) are a commonly used solution in the wind industry. The standard converter topology used in these systems is the voltage source inverter (VSI). The use of reverse-blocking insulated gate bipolar transistor (RB-IGBT) in the current source inverter topology (CSI), which is an alternative topology, opens new possibilities of control methods. This paper presents a novel power control system for a DFIG supplied by a CSI. The authors propose to use multi-scalar DFIG state variables. A nonlinear control method realized by feedback linearization was used to control the active and reactive powers of the generator. In the feedback linearization controls, the nonlinear DFIG model was taken into account. In the control system structure, classical proportional–integral controllers were used. The control variables were the output current vector components of the CSI. Such approach was named the “current control”. The proposed control method is characterized by good dynamic properties which, combined with the inverter properties in the rotor circuit, allow to increase the quality of the energy transferred to the grid by the generator. In the simulation tests, the correctness of the decoupling of the active and reactive power control loops, the dynamics of controlled power changes, and the change of the machine operating range resulting from the increase of the rotational speed of the generator shaft were controlled. The simulation studies also evaluated the impact of changes in the value of the passive elements of the system on the operation of the generator system. Characteristic operating states of the generator system were analyzed using computer simulations.

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Section: Model and Simulation Resultsmentioning

confidence: 99%

Nonlinear Control of a Doubly Fed Generator Supplied by a Current Source Inverter

Blecharz

Morawiec

2019

Energies

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“…For example, inclusion of a seventh switch (in addition to the six switches in three-phase systems), in different topologies, was proposed in [105], [106], [109] to reduce CMV. In [107], an LC resonant circuit across the input inductor was proposed Employment of SiC and GaN devices Machine design [116], [117] CSI-specific machine design Over-lap time [118], [119] New techniques to compensate over-lap time effects Multiphase CSI [120]- [124] Modulation and control of multiphase CSI (predominantly 5-phase)…”

Section: A Topologies 1) Multiphase Current Source Invertermentioning

confidence: 99%

Multiphase Traction Inverters: State-of-the-Art Review and Future Trends

et al. 2022

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Multiphase inverters (MPIs) continue to increase in popularity owing to their compelling features that include enhanced fault-tolerance capability, improved per-phase power handling, and reduced dc-bus capacitor sizing. This article presents a comprehensive review on MPIs and their application in transportation electrification. More specifically, voltage source inverter (VSI) and nine-switch inverter (NSI) are the two MPI topologies reviewed herein, due to their popularity and potential for employment as traction inverters. The state-of-the-art review covers modeling and control techniques, dc-capacitor sizing, modulation strategies, inverter losses, and cost. Promising future trends of MPIs in terms of topologies, switching devices and integrated design are also investigated.INDEX TERMS Automotive, dc-ac converters, electric vehicles, inverters, power electronics, pulse width modulated power converters, transportation electrification, vector control.

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“…An analysis of overlap‐time impact in a CSI was given in [27]. The overlap‐time will produce error and aberration of the current vector and generate harmonics components.…”

Section: Introductionmentioning

confidence: 99%

Overlap‐time compensation technique for current‐source power inverter

Suroso

Winasis

Noguchi

2020

IET Power Electronics

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A current source type power inverter is an inverter converting the dc current source to be ac current with magnitude, frequency and phase angle can be controlled. In a voltage source inverter, a short circuit condition is prohibited, because an excessive current may destroy the inverter circuits. In contrast, because inductors are used as energy buffer, an open circuit must be avoided in the operation of a current source inverter. In order to operate inverter properly, overlap-time is attached in the firing signals of power switches to avoid open circuit condition. However, adding overlap-time will generate distortion of the ac output current. Hence, compensation of overlap-time is absolutely needed for current source inverter to output high quality current waveform. A new overlap-time compensation method for current source inverter is proposed in this paper. The method utilized triangular carriers and sinusoidal signal for modulation strategy to generate gating signals of inverter with overlap-time compensation capability. The new method was examined using computer simulations. Further, experimental tests of inverter circuits applying overlap-time compensation method were also presented and discussed. The test results verified that the proposed method worked well suppressing distortions and harmonics of the ac current waveform caused by the overlap-time.

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An Overlap-Time Compensation Method for Current-Source Space-Vector PWM Inverters

Cited by 41 publications

References 14 publications

Nonlinear Control of a Doubly Fed Generator Supplied by a Current Source Inverter

Nonlinear Control of a Doubly Fed Generator Supplied by a Current Source Inverter

Multiphase Traction Inverters: State-of-the-Art Review and Future Trends

Overlap‐time compensation technique for current‐source power inverter

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