The Design of a New State Space Digital Power Supply Prototype

Based on system identification and DLQR methods, a self-adaptive magnet power supply can be implemented by the new controller structure without any change in the power supply main circuit. Now only some raw tests have been taken which show its stableness, but the State Space Digital Controlling may turn out to be with potential. It makes power supplies with different capability easy to interchange without any more effort on tuning their parameters according to their loads, and can be extended to accommodate MIMO systems [1-3]. BACKGROUND The modern magnet digital power supplies are mostly composited as the following structure (see Fig 1).