The electric power systems are interconnected for the economical and reliable operation of supply systems. An interconnection can be implemented through AC DC links. A variable frequency transformer (VFT) has emerged as an alternative asynchronous interconnection, like back-to-back HVDC Unlike links, VFT requires reduced reactive power, offers quicker incipient transient recovery, coherent damp...

Mining enterprises are energy intensive facilities. The capacity of single technological units can reach 5 MW. Variable-frequency drive systems often used to set them in motion. paper analyzes the features choosing and using variable-frequency drives under diamond mining conditions. study objective is formulate formalize problems introducing operating at diamond-mining further develop implement...