关键词: 槽式聚光, 温差发电, 双轴太阳能跟踪, 人机交互

Abstract: In order to improve the solar energy utilization rate and output power of the solar power generation device, this paper takes the parabolic trough thermoelectric generation device as the research object, it proposes a new type of solar power generation device, which uses PLC as the controller and MCGS touch screen as the configuration interface. Through the feedback information of the illumination sensor, the step motor controls the concentrator, so that the condenser rotates around the north, south, east and west sides to track the suns height angle and azimuth angle, so as to improve the photoelectric conversion efficiency of the solar power generation device. In order to verify the feasibility of the tracking control system of the trough type solar thermal power generation device, the power generation capacity of the device was measured. The test results showed that the device supplied power to the load of the solar greenhouse for 10 consecutive days, the total power generation time was 52.01 h, and the total power generation was 2.74 kW·h, which could meet the daily power consumption of the solar greenhouse seedlings. The structure of the device is flexible, and the power generation of the device can be further improved by increasing the number of series parallel hybrid connected thermoelectric generators.

Key words: solar parabolic trough concentration, thermoelectric generation, biaxial solar tracking, the humancomputer interaction