Search

An intelligent control model, called fuzzy self-organization model, is proposed based on the requirements of electromagnetic bionics system design principle and fuzzy algorithm. What the intelligent control model is and how it can be used in projects and the validation are elaborated. An intelligent control system - a heating system as selected, is developed according to the proposed model, in which the intelligent control model is constructed and coded into a DSP chip to organize the heating circuits/branches and control the heating procedure. The test results of the system show that the model can be carried out successfully, and the heating procedure is optimized by the settings of accurate heating temperature and the heating speed.

In order to study the corona discharge on the sharp conductor structure, the relationship between conductor radius and corona was found by analysis of the three basic structures of corona discharge, and calculating the potential around the conductor in the three cases. Based on the three basic structures, the model of sharp conductor structure of corona discharge was established. Since of it, the threshold voltage of it could be easily calculated, which may provide supports for the further research on corona discharge on the sharp conductor structure.

Corona discharge signal from the high-voltage transmission line exhibits unique characteristics compared to other radiation signals, which include wide distribution of frequency, small signal amplitude and strong randomness. The properties of frequency distribution of corona discharge signal and noise were tested in the range of 0 MHz-1.5 GHz to obtain the most beneficial detecting band. Based on the characteristics and properties, a high-gain helical antenna with the center frequency of 250 MHz was designed, and the performance of the antenna was tested. The corona discharge signal from 550 kV extra-high-voltage power line at the distance of about 320 meters was successfully detected by the helical antenna. The results showed that this design achieves the expected requirements and have a good practical performance. The design of antenna may provide supports for the further research on remote detection system of corona discharge signal.