The Experts below are selected from a list of 437523 Experts worldwide ranked by ideXlab platform
David Reigosa - One of the best experts on this subject based on the ideXlab platform.
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Islanding Detection in Three-Phase and Single-Phase Systems Using Pulsating High-Frequency Signal Injection
IEEE Transactions on Power Electronics, 2015Co-Authors: David Reigosa, Fernando Briz, Cristian Blanco Charro, Juan Manuel GuerreroAbstract:This paper analyzes the use of pulsating high-Frequency Signal injection for islanding detection purposes. Active islanding detection using high-Frequency Signal injection is an appealing option due to its reduced nondetection zone, reduced cost, and ease of implementation. The use of a rotating high-Frequency Signal has been reported and analyzed. However, this method can only be applied to three-phase systems. In this paper, the use of a pulsating high-Frequency Signal injection is proposed. While it uses the same principles as rotating Signal injection, it can be applied to both three-phase and single-phase systems.
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active islanding detection for multiple parallel connected inverter based distributed generators using high Frequency Signal injection
IEEE Transactions on Power Electronics, 2014Co-Authors: David Reigosa, Fernando Briz, C Blanco, Pablo Garcia, Manuel J GuerreroAbstract:This paper proposes a method for islanding detection in microgrids with multiple parallel-connected inverters using high-Frequency Signal injection. In the proposed method, a master inverter injects the high-Frequency Signal which is used by the rest of inverters for islanding detection, with two distinguishing features: 1) The slave inverters work in a high-Frequency current cancellation mode, what prevents interference and 2) in case of master failure or significant changes in the grid, the remaining inverters will dynamically reassign roles, the new master inverter being self-selected, based on a deterministic performance criteria and without the need of communications.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
IEEE Transactions on Industry Applications, 2010Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-Frequency carrier Signal injection. The injection of a high-Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator high-Frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-Frequency impedance, from which it can be estimated. The high-Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
Energy Conversion Congress and Exposition, 2009Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface PM machines (SPMSM) using high Frequency carrier Signal injection. The injection of a high Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator transient impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator transient impedance, from which it can be estimated. The high Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. The paper first explains the physics behind the magnet temperature dependence. Then the principles of the method as well as its practical implementation are discussed. Experimental verification of the method is provided.
M.w. Degner - One of the best experts on this subject based on the ideXlab platform.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
IEEE Transactions on Industry Applications, 2010Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-Frequency carrier Signal injection. The injection of a high-Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator high-Frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-Frequency impedance, from which it can be estimated. The high-Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
Energy Conversion Congress and Exposition, 2009Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface PM machines (SPMSM) using high Frequency carrier Signal injection. The injection of a high Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator transient impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator transient impedance, from which it can be estimated. The high Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. The paper first explains the physics behind the magnet temperature dependence. Then the principles of the method as well as its practical implementation are discussed. Experimental verification of the method is provided.
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on line diagnostics in inverter fed induction machines using high Frequency Signal injection
IEEE Industry Applications Society Annual Meeting, 2003Co-Authors: Fernando Briz, M.w. Degner, A Diez, J M GuerreroAbstract:Fault diagnostics for induction machines using an injected high Frequency carrier Signal is presented and analyzed in this paper. Both stator winding fault and broken: rotor bar detection is covered. Measurement of the resulting high Frequency negative sequence current is shown to be capable of detecting both types of faults at their incipient stage. Though sharing similar physical principles to techniques applied to line-connected machines, the use of a high Frequency Signal is shown to provide important advantages for inverter fed machines, such as providing the same performance and drastically reduced sensitivity to the working condition of the machine, i.e. torque and flux levels, and fundamental excitation Frequency.
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position estimation in induction machines utilizing rotor bar slot harmonics and carrier Frequency Signal injection
IEEE Transactions on Industry Applications, 2000Co-Authors: M.w. Degner, R.d. LorenzAbstract:This paper presents a simple and robust way of utilizing harmonic saliencies created by rotor and stator slotting, present in some induction machine designs, for the estimation of rotor position. The injection of a carrier-Signal voltage, in addition to the fundamental excitation, produces a carrier-Signal current that contains the desired spatial information. A closed-loop tracking observer is then used to extract this spatial information for the estimation of the rotor position. Due to its reliance on a spatial saliency and carrier-Frequency Signal injection, the technique is very robust over a wide speed range, including low and zero speed.
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position estimation in induction machines utilizing rotor bar slot harmonics and carrier Frequency Signal injection
Power Conversion Conference, 1997Co-Authors: M.w. Degner, R.d. LorenzAbstract:This paper presents a simple and robust way of utilizing harmonic saliencies for the estimation of rotor position. A carrier Frequency voltage excitation is used to produce a carrier Frequency current, which contains the desired spatial information. A closed-loop, tracking observer is then used to estimate the rotor position. Due to its reliance on a spatial saliency and carrier Frequency Signal injection, the technique is very robust over a wide speed range, including low and zero speed.
Fernando Briz - One of the best experts on this subject based on the ideXlab platform.
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Islanding Detection in Three-Phase and Single-Phase Systems Using Pulsating High-Frequency Signal Injection
IEEE Transactions on Power Electronics, 2015Co-Authors: David Reigosa, Fernando Briz, Cristian Blanco Charro, Juan Manuel GuerreroAbstract:This paper analyzes the use of pulsating high-Frequency Signal injection for islanding detection purposes. Active islanding detection using high-Frequency Signal injection is an appealing option due to its reduced nondetection zone, reduced cost, and ease of implementation. The use of a rotating high-Frequency Signal has been reported and analyzed. However, this method can only be applied to three-phase systems. In this paper, the use of a pulsating high-Frequency Signal injection is proposed. While it uses the same principles as rotating Signal injection, it can be applied to both three-phase and single-phase systems.
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active islanding detection for multiple parallel connected inverter based distributed generators using high Frequency Signal injection
IEEE Transactions on Power Electronics, 2014Co-Authors: David Reigosa, Fernando Briz, C Blanco, Pablo Garcia, Manuel J GuerreroAbstract:This paper proposes a method for islanding detection in microgrids with multiple parallel-connected inverters using high-Frequency Signal injection. In the proposed method, a master inverter injects the high-Frequency Signal which is used by the rest of inverters for islanding detection, with two distinguishing features: 1) The slave inverters work in a high-Frequency current cancellation mode, what prevents interference and 2) in case of master failure or significant changes in the grid, the remaining inverters will dynamically reassign roles, the new master inverter being self-selected, based on a deterministic performance criteria and without the need of communications.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
IEEE Transactions on Industry Applications, 2010Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-Frequency carrier Signal injection. The injection of a high-Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator high-Frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-Frequency impedance, from which it can be estimated. The high-Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
Energy Conversion Congress and Exposition, 2009Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface PM machines (SPMSM) using high Frequency carrier Signal injection. The injection of a high Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator transient impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator transient impedance, from which it can be estimated. The high Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. The paper first explains the physics behind the magnet temperature dependence. Then the principles of the method as well as its practical implementation are discussed. Experimental verification of the method is provided.
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on line diagnostics in inverter fed induction machines using high Frequency Signal injection
IEEE Industry Applications Society Annual Meeting, 2003Co-Authors: Fernando Briz, M.w. Degner, A Diez, J M GuerreroAbstract:Fault diagnostics for induction machines using an injected high Frequency carrier Signal is presented and analyzed in this paper. Both stator winding fault and broken: rotor bar detection is covered. Measurement of the resulting high Frequency negative sequence current is shown to be capable of detecting both types of faults at their incipient stage. Though sharing similar physical principles to techniques applied to line-connected machines, the use of a high Frequency Signal is shown to provide important advantages for inverter fed machines, such as providing the same performance and drastically reduced sensitivity to the working condition of the machine, i.e. torque and flux levels, and fundamental excitation Frequency.
Juan Manuel Guerrero - One of the best experts on this subject based on the ideXlab platform.
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Islanding Detection in Three-Phase and Single-Phase Systems Using Pulsating High-Frequency Signal Injection
IEEE Transactions on Power Electronics, 2015Co-Authors: David Reigosa, Fernando Briz, Cristian Blanco Charro, Juan Manuel GuerreroAbstract:This paper analyzes the use of pulsating high-Frequency Signal injection for islanding detection purposes. Active islanding detection using high-Frequency Signal injection is an appealing option due to its reduced nondetection zone, reduced cost, and ease of implementation. The use of a rotating high-Frequency Signal has been reported and analyzed. However, this method can only be applied to three-phase systems. In this paper, the use of a pulsating high-Frequency Signal injection is proposed. While it uses the same principles as rotating Signal injection, it can be applied to both three-phase and single-phase systems.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
IEEE Transactions on Industry Applications, 2010Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-Frequency carrier Signal injection. The injection of a high-Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator high-Frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-Frequency impedance, from which it can be estimated. The high-Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
Energy Conversion Congress and Exposition, 2009Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface PM machines (SPMSM) using high Frequency carrier Signal injection. The injection of a high Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator transient impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator transient impedance, from which it can be estimated. The high Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. The paper first explains the physics behind the magnet temperature dependence. Then the principles of the method as well as its practical implementation are discussed. Experimental verification of the method is provided.
Pablo Garcia - One of the best experts on this subject based on the ideXlab platform.
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active islanding detection for multiple parallel connected inverter based distributed generators using high Frequency Signal injection
IEEE Transactions on Power Electronics, 2014Co-Authors: David Reigosa, Fernando Briz, C Blanco, Pablo Garcia, Manuel J GuerreroAbstract:This paper proposes a method for islanding detection in microgrids with multiple parallel-connected inverters using high-Frequency Signal injection. In the proposed method, a master inverter injects the high-Frequency Signal which is used by the rest of inverters for islanding detection, with two distinguishing features: 1) The slave inverters work in a high-Frequency current cancellation mode, what prevents interference and 2) in case of master failure or significant changes in the grid, the remaining inverters will dynamically reassign roles, the new master inverter being self-selected, based on a deterministic performance criteria and without the need of communications.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
IEEE Transactions on Industry Applications, 2010Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-Frequency carrier Signal injection. The injection of a high-Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator high-Frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-Frequency impedance, from which it can be estimated. The high-Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.
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magnet temperature estimation in surface pm machines using high Frequency Signal injection
Energy Conversion Congress and Exposition, 2009Co-Authors: David Reigosa, Fernando Briz, Juan Manuel Guerrero, Pablo Garcia, M.w. DegnerAbstract:This paper proposes a method to estimate the magnet temperature in surface PM machines (SPMSM) using high Frequency carrier Signal injection. The injection of a high Frequency Signal, superimposed on the fundamental excitation, allows the estimation of the stator transient impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator transient impedance, from which it can be estimated. The high Frequency carrier Signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. The paper first explains the physics behind the magnet temperature dependence. Then the principles of the method as well as its practical implementation are discussed. Experimental verification of the method is provided.
