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Active Power Filter (APF) has been widely used to compensate the harmonic currents which are generated by the nonlinear load. Its compensation performance mainly depends on the design of controller. In this paper, a novel control method based on recursive integral PI algorithm and repetitive control strategy has been proposed. Compared with traditional PI control which can not get zero-steady-state...
At present, the One-Cycle Control of Active Power Filter has two serious problems. One is that this method can just compensate the harmonic and reactive power at the same time, which can not be eliminated separately. The other is that the tracking current will be affected and have huge error when the mains voltage appears distortion. So, through the hard work, in this paper, we adopt the method to...
In this paper, the mathematical model and work principle of the three-phase voltage source pulse width modulation (PWM) rectifier (VSR) are analyzed. Then, the control strategies without feed-forward and with feed-forward are compared, which based on the power factor, the total harmonic distortion (THD) and DC voltage stability. Voltage-Oriented Control (VOC) and direct current control method were...
Analysis and control of power quality by neural network is a new research field in electrical power system. To avoid the deficiencies of current tracking control, this paper presents a new instantaneous current PWM control that based on neural network. Combining wtth ip-iq detecting method that based on instantaneous reactive power theory, a three-phase shunt active power filter (SAPF) for reactive...
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