EPE Association: EPE 2016 - DS3c: Measurements Techniques and Sensors

EPE 2016 - DS3c: Measurements Techniques and Sensors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 03: Measurement and Control > EPE 2016 - DS3c: Measurements Techniques and Sensors

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   Application of Cell Mapping Method in Chaotic Detection of Asynchronous Motor at Low Speed
By Binhua LI [View]
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Abstract: Chaotic detection is presented to deal with the problem that the weak electrical signals of a stator are difficult to measure when a motor is at a low speed. In practice, traditional chaotic method will take a long time, and it is not accurate enough, so cell mapping theory is introduced, and this approach is faster and more accurate compared with the traditional chaotic method.

   CALCULATING OF FUSE MELTING POINT FOR POWER ELECTRONICS CIRCUITS BY INRUSH ENERGY AND DETERMINATION OF THE ELIGIBILITY
By Murat DEMIR [View]
[Download]

Abstract: The fuse is a very important component for the protection of power electronic devices. There are several parameters for choosing. Inrush energy is considered as an important parameter. This paper presents the calculation of the fuse melting point by inrush energy and determination of the eligibility. The testing set has been designed as case study.

   Development of high bandwidth current sensors based on the magnetoresistive effect
By Rolf SLATTER [View]
[Download]

Abstract: New control techniques for electric drives pose new problems for the manufacturers of current sensors. In particular the sensorless control of permanent magnet synchronous machines places new demands on the current sensors used to measure the motor phase currents. The latest control techniques to determine the rotor position from the inductive signature of the electric machine require best performance characteristics for phase current sensing in terms of dynamic range and bandwidth. Oversampling of the motor current allows a low noise calculation of the rate of change of current (di/dt), which improves the measurement resolution and allows smooth operation down to zero speed without negative side-effects, such as acoustic noise. The magnetoresistive (MR) effect offers a unique combination of high bandwidth, high resolution, miniaturization and robustness, and is particularly well-suited for the development of compact, fast and accurate current sensors. The power losses are significantly lower than for shunt resistors and the response time is almost an order of magnitude faster than for hall-effect based current sensors. Furthermore, MR-based current sensors have an extremely high bandwidth, in the range of several MHz, which allows the full exploitation of new wide bandgap power electronic technologies, such as Silicon Carbide switches and diodes.

   GA based reconstruction method of MEMS accelerometer signal used in electrical actuators
By MARIA PIETRZAK-DAVID [View]
[Download]

Abstract: This paper presents studies which, pointed out number of problems related to Micro-Electro-Mechanical System (MEMS) accelerometers used in electrical motors. The desired reference signal is obtained by an optimization technique based on Genetic Algorithm (GA). The validation of the proposed method is achieved using an experimental DC motor test bench.

   Improved Performance Intelligent Robust Controller for grid-connected VSI
By Syed Asim HUSSAIN [View]
[Download]

Abstract: This paper presents a novel robust control design approach for grid-connected voltage-source-inverter with uncertain grid-impedance. The proposed method is based on the fusion of intelligent and robust control theories. The controller is designed to achieve the highest convergence rate of the system for a certain uncertainty range. The control objective is to regulate the real and reactive power injected to the grid for which a first order controller is designed. Simulations and real-time hardware-in-the-loop experiments demonstrate the effectiveness of the proposed controller.

   Influence of a Variable Reluctance Resolver on an E-Motor-System
By Norbert NEIDIG [View]
[Download]

Abstract: In this paper the fundamental knowledge of a variable reluctance resolver is presented and ananalytical model is demonstrated. With the simulation results are calculated and validated bymeasurements on a sensor test bench. Based on the introduced model, mechanical and electricalfailures of any variable reluctance sensor can be analyzed. The model based simulation is compared tothe measurement results and future prospects are given.

   Non-Parametric Frequency Response Estimation of Two-Mass-System using Kalman Filter
By Niko NEVARANTA [View]
[Download]

Abstract: This paper studies an online nonparametric identification method that is based on a time-frequency representation of signals using Kalman filter. The method utilizes swept excitation signal by synchronizing the Kalman filter to the frequency of the excitation signal generator and updating the filter gains on a sample-by-sample basis. Four different closed loop identification configuration are studied and experimentally compared by considering direct and indirect identification approaches. Moreover, this paper studies loop transfer function estimation from the closed loop controlled servomechanism and discusses the possibility to use the result for loop diagnostics. The experimental results illustrate the effectiveness of the studied online identification method to estimate nonparametric frequency response of the closed loop-controlled servomechanism at a selected band of frequencies.

   Simulated and Measured Efficiency Verification Power Circulation Method of a High Power Low Voltage NPC Converter for Wind Turbines
By Berthold BENKENDORFF [View]
[Download]

Abstract: Development and research for power converters is focused on high power density, high modularity, low costs as well as high reliability and efficiency. The use of multilevel converters, like Neutral Point Clamped (NPC) Converters, in high power applications in the range of 1.5MW up to 6MW can be favorable because of the filter size reduction and therefore reduction of weight and total volume of the system. Moreover the power losses and efficiency are of high importance. In this paper an approach, corresponding to the electrical method, is taken into account for evaluating at the same time two different inverters with an apparent power of approximately 1MVA in one single operation.

EPE 2016 - DS3c: Measurements Techniques and Sensors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 03: Measurement and Control > EPE 2016 - DS3c: Measurements Techniques and Sensors
	[return to parent folder]

	Application of Cell Mapping Method in Chaotic Detection of Asynchronous Motor at Low Speed By Binhua LI	[View] [Download]
Abstract: Chaotic detection is presented to deal with the problem that the weak electrical signals of a stator are difficult to measure when a motor is at a low speed. In practice, traditional chaotic method will take a long time, and it is not accurate enough, so cell mapping theory is introduced, and this approach is faster and more accurate compared with the traditional chaotic method.

	CALCULATING OF FUSE MELTING POINT FOR POWER ELECTRONICS CIRCUITS BY INRUSH ENERGY AND DETERMINATION OF THE ELIGIBILITY By Murat DEMIR	[View] [Download]
Abstract: The fuse is a very important component for the protection of power electronic devices. There are several parameters for choosing. Inrush energy is considered as an important parameter. This paper presents the calculation of the fuse melting point by inrush energy and determination of the eligibility. The testing set has been designed as case study.

	Development of high bandwidth current sensors based on the magnetoresistive effect By Rolf SLATTER	[View] [Download]
Abstract: New control techniques for electric drives pose new problems for the manufacturers of current sensors. In particular the sensorless control of permanent magnet synchronous machines places new demands on the current sensors used to measure the motor phase currents. The latest control techniques to determine the rotor position from the inductive signature of the electric machine require best performance characteristics for phase current sensing in terms of dynamic range and bandwidth. Oversampling of the motor current allows a low noise calculation of the rate of change of current (di/dt), which improves the measurement resolution and allows smooth operation down to zero speed without negative side-effects, such as acoustic noise. The magnetoresistive (MR) effect offers a unique combination of high bandwidth, high resolution, miniaturization and robustness, and is particularly well-suited for the development of compact, fast and accurate current sensors. The power losses are significantly lower than for shunt resistors and the response time is almost an order of magnitude faster than for hall-effect based current sensors. Furthermore, MR-based current sensors have an extremely high bandwidth, in the range of several MHz, which allows the full exploitation of new wide bandgap power electronic technologies, such as Silicon Carbide switches and diodes.

	GA based reconstruction method of MEMS accelerometer signal used in electrical actuators By MARIA PIETRZAK-DAVID	[View] [Download]
Abstract: This paper presents studies which, pointed out number of problems related to Micro-Electro-Mechanical System (MEMS) accelerometers used in electrical motors. The desired reference signal is obtained by an optimization technique based on Genetic Algorithm (GA). The validation of the proposed method is achieved using an experimental DC motor test bench.

	Improved Performance Intelligent Robust Controller for grid-connected VSI By Syed Asim HUSSAIN	[View] [Download]
Abstract: This paper presents a novel robust control design approach for grid-connected voltage-source-inverter with uncertain grid-impedance. The proposed method is based on the fusion of intelligent and robust control theories. The controller is designed to achieve the highest convergence rate of the system for a certain uncertainty range. The control objective is to regulate the real and reactive power injected to the grid for which a first order controller is designed. Simulations and real-time hardware-in-the-loop experiments demonstrate the effectiveness of the proposed controller.

	Influence of a Variable Reluctance Resolver on an E-Motor-System By Norbert NEIDIG	[View] [Download]
Abstract: In this paper the fundamental knowledge of a variable reluctance resolver is presented and ananalytical model is demonstrated. With the simulation results are calculated and validated bymeasurements on a sensor test bench. Based on the introduced model, mechanical and electricalfailures of any variable reluctance sensor can be analyzed. The model based simulation is compared tothe measurement results and future prospects are given.

	Non-Parametric Frequency Response Estimation of Two-Mass-System using Kalman Filter By Niko NEVARANTA	[View] [Download]
Abstract: This paper studies an online nonparametric identification method that is based on a time-frequency representation of signals using Kalman filter. The method utilizes swept excitation signal by synchronizing the Kalman filter to the frequency of the excitation signal generator and updating the filter gains on a sample-by-sample basis. Four different closed loop identification configuration are studied and experimentally compared by considering direct and indirect identification approaches. Moreover, this paper studies loop transfer function estimation from the closed loop controlled servomechanism and discusses the possibility to use the result for loop diagnostics. The experimental results illustrate the effectiveness of the studied online identification method to estimate nonparametric frequency response of the closed loop-controlled servomechanism at a selected band of frequencies.

	Simulated and Measured Efficiency Verification Power Circulation Method of a High Power Low Voltage NPC Converter for Wind Turbines By Berthold BENKENDORFF	[View] [Download]
Abstract: Development and research for power converters is focused on high power density, high modularity, low costs as well as high reliability and efficiency. The use of multilevel converters, like Neutral Point Clamped (NPC) Converters, in high power applications in the range of 1.5MW up to 6MW can be favorable because of the filter size reduction and therefore reduction of weight and total volume of the system. Moreover the power losses and efficiency are of high importance. In this paper an approach, corresponding to the electrical method, is taken into account for evaluating at the same time two different inverters with an apparent power of approximately 1MVA in one single operation.