Topic

# Inductance

About: Inductance is a research topic. Over the lifetime, 30266 publications have been published within this topic receiving 255189 citations. The topic is also known as: self inductance & magnetic inductance.

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Virginia Tech

^{1}TL;DR: In this article, the authors present an analytical method for the computation of machine characteristics, such as Inductance and Rotor Position vs. Excitation Current Comparison of Measured, Analytic and Finite Element Results.

Abstract: PRINCIPLE OF OPERATION OF THE SWITCH RELUCTANCE MOTOR (SRM) Introduction Background Elementary Operation of the Switch Reluctance Motor Principle of Operation of the Switched Reluctance Motor Derivation of the Relationship Between Inductance and Rotor Position Equivalent Circuit SRM Configurations Linear Switched Reluctance Machines References DERIVATION OF SRM CHARACTERISTICS Introduction Data for Performance Computation Analytic Method for the Computation of Machine Characteristics Computation of Unaligned Inductance Computation of Aligned Inductance Computation of Inductance vs. Rotor Position vs. Excitation Current Comparison of Measured, Analytic and Finite Element Results References DESIGN OF SRM Introduction Derivation of Output Equation Selection of Dimensions Design Verification Operational Limit Selection of Number of Phases Selection of Poles Ratio of Pole-Arc to Pole-Pitch Selection of Pole Base Selection of Pole-Arcs Measurement of Inductance Calculation of Torque Design of Linear Switched Reluctance Machine (LSRM) References CHAPTER 4: CONVERTERS FOR SRM DRIVES Converter Configurations Asymmetric Bridge Converter Asymmetric Converter Variation Single Switch per Phase Converters m Switches and 2m Diodes m Switches and 2m Diodes with Independent Phase Current Control (m+1) Switch and Diode Configurations One Common Switch Configuration Minimum Switch Topology With Variable DC Link Variable DC Link Voltage with Buck Boost Converter Topology 1.5m Switches and Diodes Configuration Comparison of Some Power Converters Two Stage Power Converter Resonant Converter Circuits for Switched Reluctance Motor Drives References CONTROL OF SRM DRIVE Introduction Control Principle Closed Loop Speed Controlled SRM Drive Design of Current Controllers Flux Linkage Controller Torque Control Design of the Speed Controller References MODELING AND SIMULATION OF SRM DRIVE SYSTEM Introduction Modeling Simulation References ACOUSTIC NOISE AND ITS CONTROL IN SRM Introduction Sources of Acoustic Noise in Electrical Machines Noise Sources Noise Mitigation Qualitative Design Measures to Reduce Noise Measurement of Acoustic Noise and Vibrations Future Directions Appendix-1: Derivation of First Mode Frequency of SRM References SENSORLESS OPERATION OF SRM DRIVES Introduction Current Sensing Rotor Position Measurement Methods Rotor Position Estimation References APPLICATION CONSIDERATIONS AND APPLICATIONS Introduction Review of SRM Drive Features for Application Consideration Applications Emerging applications References

1,457 citations

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01 Jan 1981

TL;DR: This authoritative compilation of formulas and tables simplifies the design of inductors for electrical engineers features a single simple formula for virtually every type of inductor, together with tables from which essential numerical factors may be interpolated.

Abstract: This authoritative compilation of formulas and tables simplifies the design of inductors for electrical engineers. It features a single simple formula for virtually every type of inductor, together with tables from which essential numerical factors may be interpolated. An esteemed reference, it belongs in the library of every electrical engineer. 1946 edition.

1,296 citations

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TL;DR: In this paper, the authors derived inductance equations for planar thin- or thick-film coils, comparing equations that include negative mutual inductance with those that do not, and presented a computer program developed for calculating inductances for both square and rectangular geometries, the variables considered being track width, space between tracks, and number of turns.

Abstract: Negative mutual inductance results from coupling between two conductors having current vectors in opposite directions As a quantity in electronic circuits, negative mutual inductance is usually so much smaller in magnitude than overall inductance that it can be neglected with little effect In the microelectronic world, however, its neglect can result in inductance values as much as 30 percent too high This paper derives inductance equations for planar thin- or thick-film coils, comparing equations that include negative mutual inductance with those that do not It describes a computer program developed for calculating inductances for both square and rectangular geometries, the variables considered being track width, space between tracks, and number of turns Graphic results are presented for up to 16 turns over an inductance range of 3 nanohenries to 10 microhenries Although details of fabrication are not included, the effects of film thickness and frequency on the mutual-inductance parameter are discussed

1,043 citations

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IBM

^{1}TL;DR: In this paper, a method for calculating multiloop inductances formed by complicated interconnection conductors is described, where the conductor loops are divided into segments for which so-called partial inductances are calculated.

Abstract: This paper describes a method for calculating multiloop inductances formed by complicated interconnection conductors. Knowledge of these inductances leads to useful information concerning the design of such systems. In the approach pursued here, the conductor loops are divided into segments for which so-called partial inductances are calculated. The partial inductancens are then appropriately added to yield the desired loop inductance.

919 citations

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TL;DR: In this paper, a robust control strategy for regulating the grid current entering a distribution network from a three-phase VSI system connected via a LCL filter is proposed, which integrates an outer loop grid current regulator with inner capacitor current regulation to stabilize the system.

Abstract: Many grid connected power electronic systems, such as STATCOMs, UPFCs, and distributed generation system interfaces, use a voltage source inverter (VSI) connected to the supply network through a filter. This filter, typically a series inductance, acts to reduce the switching harmonics entering the distribution network. An alternative filter is a LCL network, which can achieve reduced levels of harmonic distortion at lower switching frequencies and with less inductance, and therefore has potential benefits for higher power applications. However, systems incorporating LCL filters require more complex control strategies and are not commonly presented in literature. This paper proposes a robust strategy for regulating the grid current entering a distribution network from a three-phase VSI system connected via a LCL filter. The strategy integrates an outer loop grid current regulator with inner capacitor current regulation to stabilize the system. A synchronous frame PI current regulation strategy is used for the outer grid current control loop. Linear analysis, simulation, and experimental results are used to verify the stability of the control algorithm across a range of operating conditions. Finally, expressions for ""harmonic impedance" of the system are derived to study the effects of supply voltage distortion on the harmonic performance of the system.

869 citations