Mode-Port-Network Approach to Analyze Power-Line EMC Problems for PLC

Kami, Yoshio; Xiao, Fengchao; Murano, Kimitoshi

doi:10.1109/emczur.2009.4783377

Cited by 13 publications

(9 citation statements)

References 1 publication

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“…There is no noticeable change in comparison to normal state which is exactly what customers are looking for. Many other features create a complex unit which is suitable to analyse problems in the power line path [13]. Also the price is much lower than the competitor's ($300).…”

Section: Discussionmentioning

confidence: 99%

Designing a Real Time Redactor for Power Saving Utilization

Krejcar

Frischer

2013

ElAEE

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Nowadays high importance is given to the development of green technologies which are designed with an emphasis on low energy consumption. Due to the financial crisis the need for such green technologies and devices is more important ever before. All home electric appliances like refrigerators, deep-freezes, washing machines, pumps, etc. produce waste current component, which can be stabilized. This technique can decrease electricity consumption from 10 to 30% -different depending on countries. Current modern devices for adjustment of power of target electrical appliances need a very fine measurement of an input voltage and current. In such cases remote monitoring of mentioned values can be a suitable solution. However, this solution contains some issues such as the need for pre-processing in remote sensor, or wireless transfer to central monitoring device, which need to be solved. Also the powering of such remote device is strictly limited. Sensor needs to be powered only by energy from the current sensor which results in the need for application of modern power source solutions. All of these findings result in a development of miniaturized solution based on 32b microcontroller unit with wireless communication unit and independent powering circuit.

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Section: Discussionmentioning

confidence: 99%

Designing a Real Time Redactor for Power Saving Utilization

Krejcar

Frischer

2013

ElAEE

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“…parameters of a pair of bare wires running above ground in [10], and by comparing the results obtained for the balanced (a) and unbalanced (b) cross-sections in Figure 2. After some algebra (here omitted for brevity) and as long as (2h) 2 Δh 2 , d 2 , it is proved that the diagonal entries of Z C,m are equal to the modal characteristic impedances of the balanced line in Figure 2(a), i.e.,…”

Section: Superposition Principlementioning

confidence: 99%

“…However, in order for differential signaling to achieve effectiveness, the physical layer, including wiring harnesses and terminal networks, should meet stringent requirements in terms of balancing. Indeed, undesired asymmetries affecting the wiring structure or the terminal networks may give rise to unexpected conversion of differential mode (DM) into common mode (CM), and vice versa [2][3][4], with detrimental effects in terms of: (a) near-and far-field radiated emissions (ideally null) [5][6][7]; (b) degradation of CM-rejection properties and consequent susceptibility to the electromagnetic fields generated by nearby devices (radiated susceptibility, RS), [6], and to ground-bounce noise (conducted susceptibility, CS), [8,9]. Additionally, balancing plays a crucial role in crosstalk mitigation [10].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Imbalance in Differential Lines Targeted to Spice Simulation

Grassi

Wu²,

Yang³

et al. 2015

PIER B

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Abstract-In this paper, a SPICE model representative for the mode conversion occurring in differential lines affected by imbalance either of the line cross-section and the terminal networks is developed. The model is based on the assumption of weak imbalance and allows approximate prediction of modal quantities, through separate modeling of the contributions due to line and termination imbalance by controlled sources with (possibly) frequency dependent gain. The proposed SPICE model is used to perform worst-case prediction of undesired modal voltages induced at line terminals by mode conversion.

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“…The modal voltage and current of the modal equivalent circuit are obtained by the mode decomposition of the actual voltage and current using mode-conversion matrices T v and T i [1]- [3]. The matrices include the current division factor of the transmission line as a parameter.…”

Section: A Mode-conversion Matrices Based On Mode-decomposition Techmentioning

confidence: 99%

“…1(a), on the other hand, the normal and common modes cannot be separately expressed. The actual circuit is converted to the modal equivalent circuit by means of a mode-decomposition technique including an imbalance factor of the transmission line as a conversion parameter [1]- [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental model validation of mode-conversion sources introduced to modal equivalent circuit

Sejima

Toyota

Iokibe

et al. 2012

2012 IEEE International Symposium on Electromagnetic Compatibility

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We have developed a modal-equivalent-circuit model with mode-conversion sources for clarifying the mode-conversion mechanism and considering countermeasures against commonmode noise by means of circuit analysis based on the proposed model. The modal equivalent circuit is divided into separate normal-mode and common-mode circuits obtained by applying the mode-decomposition technique to an actual circuit. The separate circuits are connected with the mode-conversion sources at the interface where two transmission lines with different current division factors (h) are connected. This model suggests that the mode conversion that occurs is likely related to the commonmode current and the normal-mode voltage at the interface and the difference in the current division factors (∆h). This paper validates the model experimentally. First, it is validated by changing the grounding conditions of a simple cable interconnection system. Next, the mode-conversion mechanism suggested by the mode-conversion sources is experimentally examined by matching on common mode and replacing a two-wire cable with a coaxial cable so that ∆h becomes almost 0. Circuit simulation results obtained using the modal equivalent circuit with the modeconversion sources agree well with measured results and this also demonstrates the model's validity.

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Mode-Port-Network Approach to Analyze Power-Line EMC Problems for PLC

Cited by 13 publications

References 1 publication

Designing a Real Time Redactor for Power Saving Utilization

Designing a Real Time Redactor for Power Saving Utilization

Modeling of Imbalance in Differential Lines Targeted to Spice Simulation

Experimental model validation of mode-conversion sources introduced to modal equivalent circuit

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