Sun tracking method and sun tracking system

• Main Authors: Tung, Pi-Cheng, Wu, Jiunn-Chi, Lin, Chih-Kuang, Yao, Wei-Hann
• Format: Patent
• Language: English; French; German
• Published: 12.07.2017
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; BLASTING; CONTROLLING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; HEATING; LIGHTING; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MECHANICAL ENGINEERING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RANGES; REGULATING; SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TESTING; VENTILATING; WEAPONS

A sun tracking method is disclosed. The method can track the position of sun continuously, without the need to install an optical sensor, to calculate a sun-tracking solar orbit function, and to calibrate the mechanical structure periodically. The method comprises the steps outlined below. (A) A motor of an attitude control device is driven for changing attitude of a photovoltaic cell device to sense and record a short-circuit current by a short-circuit current measuring device directly or in cooperation with the switching behavior of a switch power unit of a maximum power tracking control device, or to sense and record an output power by a power measuring device. (B) A maximum value of the short-circuit current or the output power is calculated. (C) The motor-driving device is driven for modulating the photovoltaic cell device to an attitude corresponding to the maximum value of the short-circuit current or the output power.