Three Phase Dual Active Bridge Power Converter Implementation in Power Supply System of Telescope Rotary Support Device

Abstract

The article considers the method of uninterruptible power supply realization for the case of longterm grid voltage dips to provide work of the telescope rotating support device without reduction of its dynamics. That allows to provide full operation range for the telescope system in condition of partial power supply from grid. Mathematical model of three phase dual active bridge-based power converter is presented which consist of rectifier, power filter, three phases dual active bridge and inverter with permanent magnet synchronous machine drive and takes into account parameters of the electric drive of the azimuth axis trajectory measurements telescope.