The Study of Fault-Tolerant Control for Shunt Active Power Filter

At the process control system, the measure signals from sensors are often applied into control system, protection system and state monitoring system. The shunt active power filter itself is a harmonic source if the current instruction signal is not correct and it can aggravate the pollution of power network. According to this case, first the paper introduces the development and application of advanced techniques. Afterward, an integrated approach for control, fault-tolerant, and monitoring is presented. The proposed method possesses many good properties, such as reduction for complex mathematic operation, isolation and estimation for sensors fault quickly, and good tolerance capacity and so forth. Finally, the simulation experiment shows the validity of the proposed method.