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This paper studies the vibration control problem for systems with delayed state under persistent disturbances. In order to simply the vibration control problem for system with delayed states, a free-delayed-state method is proposed to reform the original problem into an equivalent optimal regulate problem with delay-free ones. Then, an approximate optimal vibration controller is obtained from a Riccati...
DC microgrid will be the main power supply system for the future sustainable homes and buildings due to the advantages of the low converter cost and easy control with no reactive power concern. The system-level stability is an important issue in the design of the DC power supply system. The overlap between the output impedance of paralleled converter and load input impedance causes the system instability...
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