Research on Application of Fault-Tolerant Control to 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. To a large extent, the property of shunt active power filter depend on the precision of the access of current instruction signal and the tolerance capacity of the current instruction signal .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. Based on the introduction of the advanced techniques, 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.