Robust SMC-PSS and AVR design: A grid connected solar concentrated OTEC system application.

This work analyzes the stability and performance of an offshore solar-concentrated ocean thermal energy conversion system (SC-OTEC) tied to an onshore AC grid. The OTEC is a system where electricity is generated using small temperature differences between the warm surface and deep cold ocean water. Existing control methods for SC-OTEC systems lack coordination, hindering dynamic stability and effective damping for the synchronous generator (SG).

Advanced load frequency control of microgrid using a bat algorithm supported by a balloon effect identifier in the presence of photovoltaic power source.

Due to the unpredictability of the majority of green energy sources (GESs), particularly in microgrids (μGs), frequency deviations are unavoidable. These factors include solar irradiance, wind disturbances, and parametric uncertainty, all of which have a substantial impact on the system's frequency. An adaptive load frequency control (LFC) method for power systems is suggested in this paper to mitigate the aforementioned issues.

Achieving the National Quality Forum's "Never Events": prevention of wrong site, wrong procedure, and wrong patient operations.

Objective: Review the evidence regarding methods to prevent wrong site operations and present a framework that healthcare organizations can use to evaluate whether they have reduced the probability of wrong site, wrong procedure, and wrong patient operations.

Summary Background Data: Operations involving the wrong site, patient, and procedure continue despite national efforts by regulators and professional organizations. Little is known about effective policies to reduce these "never events," and healthcare professional's knowledge or appropriate use of these policies to mitigate events.