EMI consideration of high reliability electrical power subsystem (EPS) of satellite

Rahimi, Tohid; Hosseini, Seyyed Hossein

doi:10.1109/pedstc.2015.7093310

Cited by 11 publications

(3 citation statements)

References 6 publications

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“…In certain applications, the system interruption may lead to immense economic losses and/or life-threatening conditions. [22] makes use of a special switching method to control the main and redundant power switches to the end of reducing the Electromagnetic Interface (EMI) which is produced by the converter, so that a safe condition is provided for the other components of the system. Thus, in turn, the overall high reliability of the system is achieved.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy-Logic-Based Mean Time to Failure (MTTF) Analysis of Interleaved Dc-Dc Converters Equipped with Redundant-Switch Configuration

et al. 2018

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Interleaved dc-dc converters in sensitive applications necessitate an enhanced reliability. An interleaved converter equipped with redundant components can fulfill the reliability requirements. Mean Time to Failure (MTTF), as a reliability index, can be used to evaluate the expected life span of the mentioned converters. The Markov model is a helpful tool to calculate the MTTF in such systems. Different scientific reports denote different failure rates with different weight for power elements. Also, in reliability reports, failure rates of active and passive components are uncertain values. In order to approximate the failure rates fuzzy-logic-based Markov models are proposed in this paper. Then it is used to evaluate the MTTF of an interleaved multi-phase dc-dc converter, which is equipped with parallel and standby switch configurations. For the first time, fuzzy curves for MTTFs of the converters and 3D reliability function are derived in this paper. The reliability analyses give an insight to find the appropriate redundant-switch configurations for interleaved dc-dc converters under different conditions. Simulation and experimental results are provided to lend credence to the viability of the studied redundant-switch configurations in interleaved dc-dc boost converter.

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Section: Introductionmentioning

confidence: 99%

Fuzzy-Logic-Based Mean Time to Failure (MTTF) Analysis of Interleaved Dc-Dc Converters Equipped with Redundant-Switch Configuration

et al. 2018

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“…For example, in the fuel cell systems, reducing the current ripple is very important because the large current ripple reduces their lifetime and reliability [8][9][10]. It is evident that the used metaloxide-semiconductor field-effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs) of power electronic converters for many applications, especially high power applications, have a key role in reliability determination of overall system [10][11][12][13]. Therefore, the need for various types of DC-DC converters with high reliability has been increased.…”

Section: Introductionmentioning

confidence: 99%

Three‐phase soft‐switching‐based interleaved boost converter with high reliability

Rahimi

Hosseini

Sabahi

et al. 2017

IET Power Electronics

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One of the most important problems related to DC-DC converters is the phenomena of power switch failures. Therefore, applying soft-switching technique to these kinds of converters without adding extra active switch would improve their reliability. In this study, a new high reliable topology with the facility of the soft-switching operation for three-phase interleaved boost converter is proposed. The proposed structure is implemented by adding three inductors to the conventional structure. Automatically, the used power switches in the suggested topology, are turned on under zero voltage condition. In addition, the diodes are turned off under zero current condition. Using this method, the switching losses of semiconductors are reduced. Moreover, there is no additional active switch in the proposed topology. These two advantages cause the reliability of proposed topology to be significantly improved. The comparison results with other similar topologies are presented. Based on comparison results, it is shown that the reliability of the proposed topology is much better than others. Simulation and experimental results are compared with verifying the desired operation of the proposed structure.

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“…Many researches about the EMI reduction and prevention of leakage current, especially for electric motors used in industries based on using the passive and active filters, have been centralized [8][9][10][11][12][13][14]. To implement simple and effective methods to overcome the EMI, Passive filters with large volume and weight system will be an indispensable part of the motor drive.…”

Section: Introductionmentioning

confidence: 99%

Reduction EMI of BLDC Motor Drive Based on Software Analysis

Mousavi¹,

Rahimi²,

Kelk³

2016

Advances in Materials Science and Engineering

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In the BLDC motor-drive system, the leakage current from a motor to a ground network and existence of high-frequency components of the DC link current are the most important factors that cause conducting interference. The leakage currents of the motors, flow through common ground, will interfere with other equipment because of the high density of electrical and electronic systems in the spacecraft and aircrafts. Moreover, generally there are common DC buses in the mentioned systems, which aggravate the problem. Function of the electric motor causes appearance of the high-frequency components in the DC link current, which can interfere with other subsystems. In this paper, the analysis of electromagnetic noise and presentation of the proposed method based on the frequency spectrum of the DC link current and the leakage current from the motor to the ground network are done. The proposed method presents a new process based on the filtering method to overcome EMI. To cover the requirement analysis, the Maxwell software is used.

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EMI consideration of high reliability electrical power subsystem (EPS) of satellite

Cited by 11 publications

References 6 publications

Fuzzy-Logic-Based Mean Time to Failure (MTTF) Analysis of Interleaved Dc-Dc Converters Equipped with Redundant-Switch Configuration

Fuzzy-Logic-Based Mean Time to Failure (MTTF) Analysis of Interleaved Dc-Dc Converters Equipped with Redundant-Switch Configuration

Three‐phase soft‐switching‐based interleaved boost converter with high reliability

Reduction EMI of BLDC Motor Drive Based on Software Analysis

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