Fault Detection using Indirect DC Link Current Measurement Technique in Multiphase DC Converter with Coupled Inductor

Bogdanovs, Arturs; Krievs, Oskars; Pforr, Johannes

doi:10.23919/epe21ecceeurope50061.2021.9570190

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…Kichan Kim presents an DC-DC converter for display driving system using op amp and pulse width modulation controller which fabricated with amorphous indium gallium zinc oxide thin film transistors [5]. Arturs Bogdanovs induced an indirect DC link current measurement technique for a multi-phase DC converter with coupled inductors, an op amp circuit is used in Arturs's approach as improve the DC link current waveform restoration quality [6]. This paper will discuss from the circuit construction to the numerical simulation about two uses: as an analogue computer, and as a proportional controlled DC motor having voltage to angle characteristic.…”

Section: Introductionmentioning

confidence: 99%

Circuit Simulation of the Analog Computer and Proportional Controlled DC Motor Based on Op Amp

2024

AETR

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Operational amplifier(op-amp) is a building block of many analog circuits, nowadays it has been the most widely used device in various electronics instruments. In modern electronics design, op-amp has a special weightage due to its robust characteristics. In this paper, two applications of op amp are discussed. One is using op-amp to construct an analog computer for solving second order differential equation. Another is to build a proportional controlled DC motor which transfer input voltage into angle. By varying the proportional gain at 1, 5 and 15, different result is obtained by octave simulation using step response graph and pole-zero diagram.

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Section: Introductionmentioning

confidence: 99%

Circuit Simulation of the Analog Computer and Proportional Controlled DC Motor Based on Op Amp

2024

AETR

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“…The accuracy of the proposed method is adequate, the phase current misbalance is well represented by the ICM sensing signal and the measurement error is well below 0.5 A in the wide operation range. For more details, refer to [25].…”

Section: Indirect Current Measurement In Multi-phase DC Convertermentioning

confidence: 99%

“…Moreover, it can be extended for multiphase and multi-level inverters. A more detailed analysis is given in [36].…”

Section: Indirect Current Measurement In Multi-level Invertermentioning

confidence: 99%

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Research and Development of Auxiliary Converters for Application in Electric Vehicles

Bogdanovs

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The doctoral Thesis is devoted to the research and development of auxiliary converters for application in electric vehicles. The Thesis contains a discussion on the dynamics, reliability and energy efficiency improvements in the auxiliary converter system. A fuzzy logic current balancing and output voltage regulator, a fault detection method, and a fault-tolerant operation algorithm were developed based on the proposed indirect converter current measurement method in the scope of the Thesis. The provided solution aims to reduce the energy consumption of auxiliary converter systems by up to 10 % and improve reliability by reducing thermal and mechanical loads by up to 80 %.

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Fault Detection using Indirect DC Link Current Measurement Technique in Multiphase DC Converter with Coupled Inductor

Cited by 2 publications

References 6 publications

Circuit Simulation of the Analog Computer and Proportional Controlled DC Motor Based on Op Amp

Circuit Simulation of the Analog Computer and Proportional Controlled DC Motor Based on Op Amp

Research and Development of Auxiliary Converters for Application in Electric Vehicles

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