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The traditional control strategy of active power filter (APF) has low accuracy and bad robustness. Firstly, a state-space model of shunt APF is established. Taking errors as unknown disturbance to the system, a robustness controller is designed based on the Hinfin control theory. Secondly, the fuzzy PI control with self-adjustable factor is applied in the DC-link voltage control of APF. The self-adjustable...
Because of the H2/Hinfin control has good robustness and performance, the H2/Hinfin control strategy of SVC is designed for improving the voltage characteristics, damping system oscillation. In the three-phrase short simulation, the transient responses of the main parameters of the H2/Hinfin controller and the conventional controller are compared and analyzed. The result demonstrates that the H2/H...
Harmonic suppression is one of the focal facets of power quality problems. An important trend of harmonic suppression is to apply the active power filter (APF) in power systems. The strategy of APF control is a researchful hotspot. Hinfin control theory, which can make optimum design to control systems, has high control accuracy and satisfactory robustness. It also has clear physical meaning and strict...
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