Research on Permanent Magnet Constant Voltage Device for Vehicle
Firstly, the improved quadratic regression orthogonal design method is proposed. Secondly, the indoor physical experiment is carried out on the main affecting factors for the permanent magnet constant voltage device for vehicle application, and meanwhile, the corresponding output voltage and current mathematical model is established by means of the statistical analysis, mathematical model establishment. Finally, the influence mechanism of the different speed and frequency on the output voltage and current is analyzed. This research can provide an important basis for study of the permanent magnet constant voltage device.
Controlled rectification and steady voltage technology of the permanent-magnet generating set on vehicle
The permanent-magnet generating set on vehicle can provide direct current for electric-equipment and battery. Its rotor is made up of a rotor core and several pieces of Nd-Fe-B permanent-magnet steel on the core. N poles and S poles are side by side. When the rotor turns, the magnet field will turn and the set generates electricity. A three-phase half-controlled bridge adjuster, which is also a rectifier, is developed. This efficient technology, which is economized on energy, solves vehicle's problem of keeping the voltage steady on varied speed and load.
Handbook of Concrete Engineering
Handbook of concrete engineering , Handbook of concrete engineering , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی