The cycloconverter based on fuzzy controller for lift

Introduction The lift is one of the most important equipments in the mine industry. For the AC lift, It can be driven by pulse sources, micro-motors or low frequency dragging during the low speed climbing phase. There are two low frequency powers for the low frequency driven operation of the lift, one of them is low fre-quency electricity generator, the other is Cyclocon-verter. For the low frequency electricity generator, it has to occupy large space and generate large sum of noise, and a g…

The cycloconverter based on fuzzy controller for lift

In order to ensure the lift can go up and down steadily and safely, a cycloconverter based on fuzzy control algorithm for lift was introduced, which can keep the output voltage to be symmetric sine wave. In this cycloconverter system, the main circuit structure was designed as circumfluence mode, with the strong DSP as the control unit, the fuzzy control policy of average weight accumulation decision was used to control the tuning of the triggering angle for thyristor in the main circuit, and then the output voltage of the cycloconverter can be controlled. The experiment and simulation prove that the performance of the fuzzy cycloconverter is improved a lot and the output voltage is very similar to symmetric sine wave. This kind of cycloconverter can help the lift stop accurately, and the shock can be decreased.