EPE Association: EPE 2018 - DS3f: Measurement Techniques and Sensors

EPE 2018 - DS3f: Measurement Techniques and Sensors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2018 ECCE Europe - Conference > EPE 2018 - Topic 03: Measurement and Control > EPE 2018 - DS3f: Measurement Techniques and Sensors

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   Development of Sensor system for Legacy and Smart Municipal Systems Infrastructure Control
By Anatolijs ZABASTA [View]
[Download]

Abstract: This work presents the development of a common control paradigm based on wireless sensornetworks, which takes into account implementation of LoRa WAN network in Latvia. This workpresents a research on creation of smart municipal systems in a local cloud of services that apply SOAand IoT. A broker that applies orchestration services resides on a gateway, which provides adapter andprotocols translation functions, and on a tool for wiring together hardware devices. We implemented aMQTT enabled service broker, which deploys data flow programming tool Node-RED for wiringtogether divergent hardware devices and nodes, and APIs for online services. A case study of theservice broker implemented for control of municipal systems in urban environment is presented anddiscussed in this work.

   High Speed, Multi-Channel, Isolated Data Transmission with a Single Fiber based on Intensity Modulation
By Georgios TSOLARIDIS [View]
[Download]

Abstract: In modern medium voltage power electronic systems, the need for high bandwidth data transmission, often through optical fibers is growing. In the most common solution multiple fibers are required in order to transmit multiple signals, which increases the overall system cost and its complexity. In this paper, a high speed (up to 200Mbps) optical link is introduced which enables the transmission of multiple data signals and their respective clock through a single fiber. The method is based on a light intensity modulation technique and transmits a multi-level signal with a single fiber, resulting in a high bandwidth isolated communication link.

   Highly Dynamic Calculation of Power Quantities and Further Analysis of Inverter-Fed Machines
By Alexander STOCK [View]
[Download]

Abstract: In this contribution, a highly dynamic calculation method of power quantities and additional electricalquantities, such as RMS values and fundamental waveforms, is presented. Typically, these quantities arecalculated periodically based on the fundamental cycle of the electrical voltages and currents. Hence,they are well defined during steady state conditions for ideal periodical waveforms. During dynamicbalancing processes, electrical signals are non-periodic. In a strict sense, the fundamental cycle-baseddefinitions, which are well known from the literature, are not valid for these transient signals. However,this paper presents a novel definition for the calculation of cycle-based quantities based on the switching cycle of the inverter output voltages. This definition delivers instantaneous results during transient balancing processes, whereby it approximates the conventional fundamental cycle-based definitions during the steady state.

   Implementation of Voltage Based Three-Phase CM/DM Noise Separation on the Drive Side
By Julian DOBUSCH [View]
[Download]

Abstract: Inverter drive systems have to comply with EMC regulations partly also on the motor side. The design process of corresponding EMI filters requires knowledge about CM and DM contributions. This paper presents a set-up that performs CM/DM separation on the load side. Measurements on a prototype showpromising results.

   Improvements of a Coaxial Current Sensor with a Wide Bandwidth Based on the HOKA Principle
By Nathan TRÖSTER [View]
[Download]

Abstract: This paper presents a current sensor with a wide bandwidth from DC up to around 250 MHz tomeasure fast commutation currents in power electronics. The sensor consists of a coaxial housing andit is inserted into the current conducting path. The inserted inductance into the commutation loop isaround 1 nH, which is achieved by the coaxially designed housing of the current sensor. The magneticfield capture is based on TMR sensors and a Rogowski coil, which are combined by the HOKAprinciple.

   Influence of the power supply distortion on power conversion harmonics measurements
By Jos KNOCKAERT [View]
[Download]

Abstract: The frequency range 2 - 150 kHz, typically occupied by switching harmonics and communication signals, is still a gap in the IEC emission standards. The main difficulty in reaching a standardized measurement method is finding a suitable power source. The low-frequency and high-frequency content of the power supply is deterministic for the measured emission, as well as the source impedance. Measurements and analyses are done on both PV-inverters and compact fluorescent lamps to see the influence of the source on the emission.

   Methodical comparison of voltage measurement points for wide bandgap applications
By Konstantin SIEBKE [View]
[Download]

Abstract: In this work different concepts of voltage measurement circuitries for wide bandgap applications with high switching frequencies and potential of disturbance are investigated and rated regarding their electromagnetic self-compatibility. Two different kinds of voltage measurement circuitries and eight different PCB track options for the signal transmission are proposed, investigated and rated regarding their EMC behavior.

   Study of the compositions of hybrid magnetic composite (HMC) materials for sensor applications
By Luca FERRARIS [View]
[Download]

Abstract: Sensor applications normally adopt cheap ferrites or more expensive AlNiCo as Permanent Magnets(PM); if a critical issue can be found it lies in the poor performance of the first and in the cost of thelatter. The driver of the work presented in the paper is the research of a material that could replace theabove mentioned PM. Hybrid Magnetic Composites (HMC) can represent a reliable solution; they areobtained mixing hard and soft magnetic materials together with a polymeric binder. The experience ofprevious research activities has been helpful in the selection of the materials, both soft and hard, andof the binder to be adopted. The mix of different components percentages has been deeplyinvestigated, with specimen magnetic characterization, in order to find out the most promisingcomposition. The final part of the activity has been devoted to apply the obtained HMC to practicalcases; in particular, the applications that have been selected to experience the new materials are guitarpickups and encoder wheels. The obtained preliminary results are satisfactory and encouraging theprosecution of the work; the obtained HMC can represent a viable solution to replace ferrites andAlNiCo materials.

   Wide-Band Impedance Measurement for converter impedance determination in LV-Grids
By Markus BIENHOLZ [View]
[Download]

Abstract: Passive coupling devices are used to measure the impedances in the low-voltage utility grid in the frequencyrange from 2 kHz to 150 kHz. The impedance of the grid itself is found to be ohmic-inductive forfrequencies up to 50 kHz. The impedance of different converters is calculated from measurements. If theconverter is connected to the grid only through a choke its impedance is significantly larger than that ofthe grid at high frequencies and within the control bandwidth, in case the converters rated power is muchsmaller than that of the grid. If an EMI-filter is added the impedance at the point of common coupling isstrongly decreased for common and differential mode at frequencies starting as low as 20 kHz and 4 kHz.

EPE 2018 - DS3f: Measurement Techniques and Sensors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2018 ECCE Europe - Conference > EPE 2018 - Topic 03: Measurement and Control > EPE 2018 - DS3f: Measurement Techniques and Sensors
	[return to parent folder]

	Development of Sensor system for Legacy and Smart Municipal Systems Infrastructure Control By Anatolijs ZABASTA	[View] [Download]
Abstract: This work presents the development of a common control paradigm based on wireless sensornetworks, which takes into account implementation of LoRa WAN network in Latvia. This workpresents a research on creation of smart municipal systems in a local cloud of services that apply SOAand IoT. A broker that applies orchestration services resides on a gateway, which provides adapter andprotocols translation functions, and on a tool for wiring together hardware devices. We implemented aMQTT enabled service broker, which deploys data flow programming tool Node-RED for wiringtogether divergent hardware devices and nodes, and APIs for online services. A case study of theservice broker implemented for control of municipal systems in urban environment is presented anddiscussed in this work.

	High Speed, Multi-Channel, Isolated Data Transmission with a Single Fiber based on Intensity Modulation By Georgios TSOLARIDIS	[View] [Download]
Abstract: In modern medium voltage power electronic systems, the need for high bandwidth data transmission, often through optical fibers is growing. In the most common solution multiple fibers are required in order to transmit multiple signals, which increases the overall system cost and its complexity. In this paper, a high speed (up to 200Mbps) optical link is introduced which enables the transmission of multiple data signals and their respective clock through a single fiber. The method is based on a light intensity modulation technique and transmits a multi-level signal with a single fiber, resulting in a high bandwidth isolated communication link.

	Highly Dynamic Calculation of Power Quantities and Further Analysis of Inverter-Fed Machines By Alexander STOCK	[View] [Download]
Abstract: In this contribution, a highly dynamic calculation method of power quantities and additional electricalquantities, such as RMS values and fundamental waveforms, is presented. Typically, these quantities arecalculated periodically based on the fundamental cycle of the electrical voltages and currents. Hence,they are well defined during steady state conditions for ideal periodical waveforms. During dynamicbalancing processes, electrical signals are non-periodic. In a strict sense, the fundamental cycle-baseddefinitions, which are well known from the literature, are not valid for these transient signals. However,this paper presents a novel definition for the calculation of cycle-based quantities based on the switching cycle of the inverter output voltages. This definition delivers instantaneous results during transient balancing processes, whereby it approximates the conventional fundamental cycle-based definitions during the steady state.

	Implementation of Voltage Based Three-Phase CM/DM Noise Separation on the Drive Side By Julian DOBUSCH	[View] [Download]
Abstract: Inverter drive systems have to comply with EMC regulations partly also on the motor side. The design process of corresponding EMI filters requires knowledge about CM and DM contributions. This paper presents a set-up that performs CM/DM separation on the load side. Measurements on a prototype showpromising results.

	Improvements of a Coaxial Current Sensor with a Wide Bandwidth Based on the HOKA Principle By Nathan TRÖSTER	[View] [Download]
Abstract: This paper presents a current sensor with a wide bandwidth from DC up to around 250 MHz tomeasure fast commutation currents in power electronics. The sensor consists of a coaxial housing andit is inserted into the current conducting path. The inserted inductance into the commutation loop isaround 1 nH, which is achieved by the coaxially designed housing of the current sensor. The magneticfield capture is based on TMR sensors and a Rogowski coil, which are combined by the HOKAprinciple.

	Influence of the power supply distortion on power conversion harmonics measurements By Jos KNOCKAERT	[View] [Download]
Abstract: The frequency range 2 - 150 kHz, typically occupied by switching harmonics and communication signals, is still a gap in the IEC emission standards. The main difficulty in reaching a standardized measurement method is finding a suitable power source. The low-frequency and high-frequency content of the power supply is deterministic for the measured emission, as well as the source impedance. Measurements and analyses are done on both PV-inverters and compact fluorescent lamps to see the influence of the source on the emission.

	Methodical comparison of voltage measurement points for wide bandgap applications By Konstantin SIEBKE	[View] [Download]
Abstract: In this work different concepts of voltage measurement circuitries for wide bandgap applications with high switching frequencies and potential of disturbance are investigated and rated regarding their electromagnetic self-compatibility. Two different kinds of voltage measurement circuitries and eight different PCB track options for the signal transmission are proposed, investigated and rated regarding their EMC behavior.

	Study of the compositions of hybrid magnetic composite (HMC) materials for sensor applications By Luca FERRARIS	[View] [Download]
Abstract: Sensor applications normally adopt cheap ferrites or more expensive AlNiCo as Permanent Magnets(PM); if a critical issue can be found it lies in the poor performance of the first and in the cost of thelatter. The driver of the work presented in the paper is the research of a material that could replace theabove mentioned PM. Hybrid Magnetic Composites (HMC) can represent a reliable solution; they areobtained mixing hard and soft magnetic materials together with a polymeric binder. The experience ofprevious research activities has been helpful in the selection of the materials, both soft and hard, andof the binder to be adopted. The mix of different components percentages has been deeplyinvestigated, with specimen magnetic characterization, in order to find out the most promisingcomposition. The final part of the activity has been devoted to apply the obtained HMC to practicalcases; in particular, the applications that have been selected to experience the new materials are guitarpickups and encoder wheels. The obtained preliminary results are satisfactory and encouraging theprosecution of the work; the obtained HMC can represent a viable solution to replace ferrites andAlNiCo materials.

	Wide-Band Impedance Measurement for converter impedance determination in LV-Grids By Markus BIENHOLZ	[View] [Download]
Abstract: Passive coupling devices are used to measure the impedances in the low-voltage utility grid in the frequencyrange from 2 kHz to 150 kHz. The impedance of the grid itself is found to be ohmic-inductive forfrequencies up to 50 kHz. The impedance of different converters is calculated from measurements. If theconverter is connected to the grid only through a choke its impedance is significantly larger than that ofthe grid at high frequencies and within the control bandwidth, in case the converters rated power is muchsmaller than that of the grid. If an EMI-filter is added the impedance at the point of common coupling isstrongly decreased for common and differential mode at frequencies starting as low as 20 kHz and 4 kHz.