The Research On High Power And High Frequent Electroplate Power System Base On Soft Switch Technology

Electroplate power system in fact is a equipment of transforming power energy, it transform alternative voltage from electric power net to constant low direct current or pulse voltage and supply for electroplate use. Power transform technology and control method play a important role to electroplate power's development, improvement of efficient and performance. Development of electroplate power has experienced four generations: direct current generator sets incontrollable silicon rectifier controllable silicon rectifier high frequent switch inverter power.Soft technology subtly use high frequent transformer leak inductance and electronic unit snubber act as resonance units and accomplish resonance produce, realize Zero_Valtage and Zero_Current, therefore it can avoid high current and high voltage occur at the same time, This greatly decrease electronic unit switch loss, increase power work efficient. Because soft switch has great advances, it made high frequent soft switch electroplate power gradually substitute the three former generate electroplate power.Full bridge shift phase soft switch topologic circuit is extensively applied topologic structure in high power and high frequent switch electroplate power system, in this paper, expound soft switch technology development and history, contrast analyze feature of three full bridge shift phase soft switch topologic circuits, bring forward a topologic structure suit for high power and high frequent electroplate, analyze it principle and addition of ZCS, on this base, carry through experiment. Deeply research choose of resonate unit parameter by calculating and simulating. Use critical proportion adjust PI controller parameter, in order to optimize PI controller parameter of constant voltage and constant current two closed loop controls. By theoretic analyze and simulate, develop a base on 80C196KC singlechip digital high power and high frequent soft switch electroplate power system. Experiment result agree on theory, prove direct of theory analyze.