Conventional predictive control for permanent magnet synchronous motors (PMSMs) contains dual speed and current loops, has a complex structure multiple parameters to be tuned. direct (PDSC) exhibits an unsatisfactory steady-state performance. To tackle these issues, this paper presents cascade-free modulated PDSC (MPDSC) scheme PMSM drives. First, model is built, where second-order sliding mode...

Abstract The 2 m×2 m high-speed free jet test facility is a level intermittent blowdown-ejector ground facility, which has the ability of tri-sonic operation. closed section replaced with large chamber. In development process project, main focus uncertainty influences pressure pulsation action on functional realization step change Ma number by adjusting semi-flexible nozzle profile in wide oper...

The aim of conducting this research was to evaluate the viscosity change in the continuous casting of steel mold powders by altering their chemical compositions, using hot stage microscope analysis. 4 low-fluorine samples containing such compositions as MnO, Fe2O3, Li2O, TiO2 and ZnO, as well as another fluorine-free sample containing a combination of Fe2O3 and TiO2, were prepared in this resea...

Wave-propelled boats utilize submerged flapping foils to convert wave energy directly into propulsion. For platforms that are solely propelled using foils, predicting the forward speed is challenging as it time varying and dependent on coupled responses of wave-induced hull motions (surge, heave, pitch) foil motion (driven by incident wavy flow). To ascertain free-running response wave-propelle...