A quantitative method to the analysis of MLC leaf position and speed based on EPID and EBT3 film for dynamic IMRT treatment with different types of MLC
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.12102
Abstract: Abstract A quantitative method based on the electronic portal imaging system (EPID) and film was developed for MLC position and speed testing; this method was used for three MLC types (Millennium, MLCi, and Agility MLC).… read more here.
Keywords: position speed; analysis; position; film ... See more keywords
A Dual-Loop Position Servo System Based on Position and Speed Parallel Control Structure
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DOI: 10.1109/access.2022.3168293
Abstract: Traditional position-speed-current loop nested structure cannot satisfy the requirements in industrial applications with high trajectory tracking accuracy and fast dynamic response like vehicle-used laser radars and wafer stages. Thus, a position and speed parallel control… read more here.
Keywords: position speed; structure; control; speed parallel ... See more keywords
An Enhanced Rotor Position/Speed Estimation Technique for Doubly Fed Induction Generator Using Stator-Side Reactive Current Variable in Model Reference Adaptive System
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DOI: 10.1109/tie.2021.3086728
Abstract: In this article, an enhanced rotor position/speed estimation technique of doubly fed induction generator (DFIG) is focused. The estimator adopts model reference adaptive system (MRAS). The stator-side reactive current is taken as the main working… read more here.
Keywords: speed; speed estimation; rotor position; estimation ... See more keywords
Undesirable Oscillations of Phase Locked Loop-Based Position and Speed Estimator for Sensorless Control
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2023.3265390
Abstract: Phase-locked loops (PLL) are increasingly used for position and speed estimation in speed sensorless control of permanent-magnet synchronous motors. In this article, the saddle point characteristic phase-portrait is developed to explore the undesirable oscillation phenomena… read more here.
Keywords: speed; sensorless control; based position; phase ... See more keywords