China Electric Equipment Group (China)

Small-Signal Stability Enhancement of Grid-Side Converters for Permanent-Magnet Wind Turbines via Adaptive Leaky Impedance-Reshaping Compensation

Grid-following grid-side converters (GSCs) in permanent-magnet wind turbines may lose small-signal stability in weak grids because the synchronous reference frame phase-locked loop (SRF-PLL) interacts with grid impedance. For a regulated direct-current (dc) side, this paper propo...

Enhancing combustion in an ethanol rotary engine via turbulent jet ignition: parametric study and mechanism analysis

Enhancing the combustion of ethanol rotary engine (ERE) is crucial for carbon neutrality. This study systematically compares the effects of conventional spark plug ignition mode (CSPIM) and turbulent jet ignition mode (TJIM) on the performance of an ERE. This investigation employ...

Mechanism-Guided Spray Deposition of Rutile TiO2/Epoxy/ODTMS Superhydrophobic Coatings for Weather-Resistant Bamboo Sand Barriers

Bamboo is a renewable and mechanically robust bio-based material with potential for sand-barrier construction; however, its long-term outdoor use is limited by ultraviolet-induced photoaging, moisture uptake, wind-sand abrasion, and biological colonization. In this study, a fluor...

Research on adaptive control of impurity and loss rate in rice cleaning by cyclone separation cylinder based on fuzzy PID strategy

To improve the poor adaptability of the cyclone cleaning and separation cylinder under different rice varieties, feed quantity, and operating conditions, this study proposed an automatically adjustment method for operational parameters. Multiple sensors were integrated into the s...