A novel modulation scheme for a modular multiphase multilevel converter in a power hardware-in-the-loop emulation system

Schmitt, Alexander; Gommeringer, Mario; Rollbühler, Christoph; Pomnitz, Paul; Braun, Michael

doi:10.1109/iecon.2015.7392276

Cited by 19 publications

(21 citation statements)

References 7 publications

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“…The voltage c,C is the arm capacitor voltage of phase and equals the sum of all cell capacitor voltages c,C in this arm. The energy c, in each CU/CHB arm is calculated with (6).…”

Section: Functional Principle Of the Phcmentioning

confidence: 99%

“…This new converter topology is perfectly suited to be used as a universal low harmonics sinusoidal voltage source. Hence, it is suitable to replace more complex state-of-the-art multilevel converter topologies such as the Modular Multilevel Converter (MMC) [5] or the Modular Multiphase Multilevel Converter (MMPMC) [6]. The PHC topology is also well suited to replace bulky and expensive LCL-filters in conventional grid-connected converter systems.…”

Section: Introductionmentioning

confidence: 99%

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Cascaded H-Bridge based Parallel Hybrid Converter — A novel Topology for perfectly sinusoidal high power Voltage Sources

Stefanski

Bernet

Schnarrenberger³

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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The demand for high voltage, high power, high precision and high dynamic 3AC-voltage sources is increasing constantly. One application that gets more and more important in recent years and demands such voltage sources is e.g. Power-Hardware-in-the-Loop (PHIL) Emulation. In this paper a new power converter topology called "Parallel Hybrid Converter" or PHC is presented and a corresponding control scheme is derived. This new converter has a terminal behavior similar to a MMC or MMPMC but compared to them the PHC features significantly reduced costs and a significantly improved power density.

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“…The voltage c,C is the arm capacitor voltage of phase and equals the sum of all cell capacitor voltages c,C in this arm. The energy c, in each CU/CHB arm is calculated with (6).…”

Section: Functional Principle Of the Phcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cascaded H-Bridge based Parallel Hybrid Converter — A novel Topology for perfectly sinusoidal high power Voltage Sources

Stefanski

Bernet

Schnarrenberger³

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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“…Main approaches to reach higher switching frequency and dynamics in this case are series voltage injection by a second inverter [3] [4], interleaved parallel operation of inverters or phases [5] [6] and multilevel inverters. The latter offer a higher apparent output switching frequency than their two-or threelevel counterparts with the same output voltage and power rating.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of 1.7 kV SiC MOSFETs for a regenerative cascaded H-bridge multilevel converter cell

Hildebrandt

Petković

Dujić

2018

2018 IEEE International Conference on Industrial Technology (ICIT)

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High fidelity AC grid emulators allow early testing and qualification of various equipment under conditions close to those expected in reality. Realizing this at medium voltage high power level is associated with certain challenges, some of which are discussed in this paper. Medium voltage grid emulator based on the well-known four-quadrant Robicon topology is considered as platform for realization of the AC grid emulator. To achieve high resolution AC waveform with sufficiently high control bandwidth, SiC based cell design is compared with pure Si and Hybrid (Si+SiC) designs. Using SiC devices for the output H-bridge stage allows significantly higher switching frequencies, improving achievable control bandwidth and improving fidelity of emulator output voltage.

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“…Though, the integration of the calculated counter voltage over the time will solve this problem, if the required voltage time area will be set as short time mean value with an explicit higher frequency than the switching frequency of the DUT. A modular multiphase multilevel converter (MMPMC) as proposed in [14] seems to be suitable for this application.…”

Section: B Simulation Of the Emfmentioning

confidence: 99%

FPGA-based real-time simulation of nonlinear permanent magnet synchronous machines for power hardware-in-the-loop emulation systems

Schmitt¹,

Richter²,

Jurkewitz³

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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Abstract-This paper presents an FPGA-based real-time simulation system of a nonlinear permanent magnet synchronous machine and its qualification for power hardware-in-the-loop emulation systems. The machine model considers the magnetic anisotropy of the rotor, the saturation of the iron as well as dynamic cross-coupling effects between the direct-and quadrature axis of the machine. A specifically designed high performance signal processing system is developed to calculate the machine behavior with a frequency of 1.5 MHz. The developed model calculates the state variables of the machine as well as the counter voltage for an emulation converter in a way that the coupling network of the power hardware-in-the-loop emulation test bench could be equipped with any inductance. Measurements validate the proper function of the machine model and demonstrate the accurate solution of the nonlinear differential equation system of an anisotropic synchronous machine with nonlinear magnetics in real-time.

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A novel modulation scheme for a modular multiphase multilevel converter in a power hardware-in-the-loop emulation system

Cited by 19 publications

References 7 publications

Cascaded H-Bridge based Parallel Hybrid Converter — A novel Topology for perfectly sinusoidal high power Voltage Sources

Cascaded H-Bridge based Parallel Hybrid Converter — A novel Topology for perfectly sinusoidal high power Voltage Sources

Evaluation of 1.7 kV SiC MOSFETs for a regenerative cascaded H-bridge multilevel converter cell

FPGA-based real-time simulation of nonlinear permanent magnet synchronous machines for power hardware-in-the-loop emulation systems

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