Solar Rotary Speed ​​Shifting System

Safety and Sustainability

The Direct-drive Alternating Current (DAC) start system is a proven configuration for Solar gas turbine packages. The system initiates engine rotation, maintains

Planetary Gear System

A planetary transmission system (or Epicyclic system as it is also known), consists normally of a centrally pivoted sun gear, a ring gear and several planet gears

The International Space Station Solar Alpha Rotary Joint Anomaly

AbstractOn Orbit Anomaly InvestigationLessons LearnedAnomaly Root Cause InvestigationApplied LoadingOn-Orbit Implementation of a Corrective Action Lessons LearnedConclusionsThe Solar Alpha Rotary Joint (SARJ) is a single-axis pointing mechanism used to orient the solar power generating arrays relative to the sun for the International Space Station (ISS). Approximately 83 days after its on-orbit installation, one of the two SARJ mechanisms aboard the ISS began to exhibit high drive motor current draw. Increased structu...See more on ntrs.nasa.govGoogle Patents

Solar panel array sun tracking system - Google Patents

The solar tracking system of the present invention includes a method and apparatus for rotational movement of a solar panel array to optimally align for capturing and utilizing solar energy.

Flywheel energy storage

OverviewPhysical characteristicsMain componentsApplicationsComparison to electric batteriesSee alsoFurther readingExternal links

Compared with other ways to store electricity, FES systems have long lifetimes (lasting decades with little or no maintenance; full-cycle lifetimes quoted for flywheels range from in excess of 10, up to 10, cycles of use), high specific energy (100–130 W·h/kg, or 360–500 kJ/kg), and large maximum power output. The energy efficiency (ratio of energy out per energy in) of flywheels, also known as round-trip efficiency, can be as high as 90%. Typical capacities range from 3 kWh to 133 kWh. Rapid charging of

Design and Production of an Autonomous Rotary Composter

The composter rotates at a speed of 4 rpm, and since the speed of the electric motor is 1500 rpm, we decided to install a speed reducer (reduction ratio, and efficiency ), and a belt-and-pulley

Solar Rotary Speed Shifting System

A dynamic model of the solar array drive assembly (SADA) system consisting of a stepper motor and two flexible solar arrays is investigated. The fluctuation compensation of the rotating speed and

Modeling and Rotating Speed Control of the Sun-Tracking System

Spacecraft tracking-drive flexible systems (STFS) consist of drive mechanisms and flexible structures, including solar array and a variety of large-scale antennas.

Engineering and Building a Dual-Axis Follow-the-Sun

Designing and building a dual-axis follow-the-sun solution for solar panels requires careful engineering considerations to ensure optimal