With the increase of renewable generating capacity following the ambitious targets set by many governments for the next decades, there will be major changes in power generation and challenges for balancing transmission grids. In particular, primary frequency control requirements will be increased following a potential reduction of system inertia. An assessment of the frequency response reserve ...

As a form of energy storage with high power and efficiency, flywheel system performs well in the primary frequency modulation grid. In this study, three-phase permanent magnet synchronous motor was used as drive system, simulation study on control strategy conducted based wind power. The speed current double closed-loop start-up phase, double-closed-loop were compensation phase. model reference...

The special design of linear induction machines (LIMs) leads to adverse effects caused by the longitudinal and end effects. These make thrust control LIMs most attractive because its value decreases sharply with speed increase. Thus, finite-state model predictive (FS-MPC) is developed increase performance LIMs. However, variable switching frequency main drawback this control. Consequently, obje...

OBJECTIVE To evaluate the effects of an interdisciplinary, guideline-based continuing education course on measures related to the care of adults with developmental disabilities (DD). DESIGN Before-and-after study with a control group. SETTING Ontario. PARTICIPANTS Forty-seven primary care providers (physicians, registered nurses, and nurse practitioners). INTERVENTION Participants eithe...