Active EMI Reduction of Stationary Clocked Systems by Adapted Harmonics Cancellation

Bendicks, Andreas; Dorlemann, Tobias; Frei, Stephan; Hees, Norbert; Wiegand, Marc

doi:10.1109/temc.2018.2854965

Cited by 27 publications

(7 citation statements)

References 22 publications

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“…These fast changing current/voltage pulses are one of the main reasons of EMI generation. Hence, EMI/EMC (Electro-Magnetic Interference/ Electro Magnetic Compatibility) tests become a challenging task for such airborne application systems [3][4]. Extensive works have been published over the mitigation of EMI/EMC issues starting from circuit level design to system level implementations [5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Extensive works have been published over the mitigation of EMI/EMC issues starting from circuit level design to system level implementations [5][6][7][8][9][10][11][12][13][14][15][16]. A topological network based model is proposed to carry out system level EMC analysis in [4]. Model analysis/visualization and mitigation of parasitic coupling paths between various modules like RFdigital, C-L-C filter circuits, flyover QSFP Connectors, switching power converter, high density connectors interface etc.…”

Section: Introductionmentioning

confidence: 99%

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Design Strategies to Overcome EMI/EMC Issues of Airborne Receivers

Sarkar

Raghu

2022

J. Phys.: Conf. Ser.

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This article describes various housing design strategies of a complex receiver system to overcome EMI/EMC challenges for airborne system applications. Isolation of leakage energy between various RF/DC-DC converters/Regulators/pulsing blocks are the key target of this design to keep conductive and radiative emission minimum. Hence, complex receiver design has been segregated into various modules. Block level design is carried out using 3D EM simulator to assess the leakage. Then they are stacked together very tactfully within the specified area without compromising inter-channel/module interference between them and the form factor respectively. The super compact stacks are further channelized for RF, DC supply, controls etc. and protected them from any kind of interferences. Low cost flexi interconnects are made to interface various stacks to arrest unwanted high/low frequency leakages. Finally, receiver module is developed and tested over temperature and EMI/EMC successfully to establish the methodology.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design Strategies to Overcome EMI/EMC Issues of Airborne Receivers

Sarkar

Raghu

2022

J. Phys.: Conf. Ser.

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“…However, some manuscripts have shown that the aggregation of interference in the case of deterministic modulation might be accompanied by low frequency envelopes. This phenomenon may lead to misinterpretations during the EMC assessment [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Aggregated Conducted Electromagnetic Interference Generated by DC/DC Converters with Deterministic and Random Modulation

et al. 2020

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The assessment of electromagnetic compatibility (EMC) is important for both technical and legal reasons. This manuscript addresses specific issues that should be taken into account for proper EMC assessment of energy systems that use power electronic interfaces. The standardized EMC measuring techniques have been used in a laboratory setup consisting in two identical DC/DC converters with deterministic and random modulations. Measuring difficulties caused by the low frequency envelopes, resulting from frequency beating accompanying aggregation of harmonic components of similar frequencies, were indicated as a phenomenon that might lead to significant problems during the EMC assessment using currently binding standards. The experimental results describing deterministic and random modulated converters might be useful for practitioners implementing power interfaces in microgrids and power systems as well as for researchers involved in EMC assurance of power systems consisting in multiple power electronic interfaces.

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“…A Series active power filter is proposed to compensate load voltage harmonics but it requires voltage control loop to develop a control signal in addition [3]. Continuously adapted harmonics cancellation (CAHC) method is used to regulate the clocked system disturbances [4]. A LCL type STATCOM with decoupled configuration is designed to reduce the internal and external disturbances in the distribution system [5] [6].…”

mentioning

confidence: 99%

Performance Evaluation of Fuzzy One Cycle Control Based Custom Power Device for Harmonic Mitigation

Manoj¹,

Khampariya²,

Pilla³

2022

IJEER

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Custom power devices (CPDs) provide better harmonic minimization when they are connected in parallel with the distribution network. Power switches have a hard impact on harmonic production in distribution networks, which leads to aging effects. Techniques used to control CPD’s provide full switching in various ways. A pulse width modulation (PWM) scheme requires a reference frame transformation that tracks source and load currents to produce a control signal. The voltage de-coupler is installed in the power device's current controllers to minimize fast current harmonics and remove complexity. One-cycle control (OCC) operates in dual boost converter mode and requires only source currents to produce a control signal. Minimum distortions are obtained by the output voltage feedback compensator. The proposed approach compares the performance of two methodologies based on total harmonic distortion (THD) analysis of the same grid voltage. The performance of the CPD using PI and fuzzy one-cycle control techniques is illustrated by simulation, which gives accurate results.

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Active EMI Reduction of Stationary Clocked Systems by Adapted Harmonics Cancellation

Cited by 27 publications

References 22 publications

Design Strategies to Overcome EMI/EMC Issues of Airborne Receivers

Design Strategies to Overcome EMI/EMC Issues of Airborne Receivers

Aggregated Conducted Electromagnetic Interference Generated by DC/DC Converters with Deterministic and Random Modulation

Performance Evaluation of Fuzzy One Cycle Control Based Custom Power Device for Harmonic Mitigation

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