Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.

Additionally a thyristor control will be supplied in order to adjust the slurry concentration in the crystallization system in case of larger variations of the production parameter.

Thyristor control phase shifter (TCPS) is one of the new facilities implemented in power network, leading to the development of economically efficient and technically reliable system.