• Citations Per Year
Learn More
In order to increase the reliability and efficiency of Shunt Active Power Filter (SAPF), this paper proposes a novel fault-tolerant topology which can reconfigure the inverter circuit in fault condition. Redundancy operation is achieved by connecting the endpoint of fault phase to the midpoint of DC-bus. On this basis, working principle of fault-tolerant(More)
Distribution STATic synchronous COMpensators (DSTATCOMs) have been proved an effective approach to correct power quality in distribution network. With reactive component and harmonic component of load current detected independently, selective compensation mode can be realized. To improve the reactive compensation ability and harmonic suppression performance(More)
Distribution STATic synchronous COMpensators (DSTATCOMs) have been proved an effective approach to compensate reactive current in distribution network. With positive-sequence component, negative-sequence and zero-sequence component of unbalanced load current detected independently, selective reactive current compensation with individual phase control(More)
By the way of establishment of mathematical model for three-phase four-wire T-type three-level Active Power Filter (APF), the relation of DC-link voltage difference, the neutral current and the duty-ratio of each bridge arms are revealed. Consequently, a control strategy of DC-link voltage balancing is proposed with the controllable neutral current(More)
In high power PWM inverters, the stability of the auxiliary power supplies makes great contribution to the reliability of the inverters. This paper deals with the EMI (Electromagnetic Interference) problem of the auxiliary power supplies which is caused by the high-frequency switching power electronic devices. Firstly the high-frequency models of the three(More)
In order to solve the problem of large capacity of harmonic compensation, this paper proposes a novel structure for multi-modular Shunt Active Power Filter (SAPF) system, which consists of N unified double DSP-controlled SAPFs and a monitoring unit. An average current control strategy is put forward to improve the system reliability and achieve the(More)
Due to the demand for increasing the reliability and efficiency of Shunt Active Power Filter (SAPF), this paper proposes a novel fault-tolerant control scheme for SAPF. When phase failure occurs, the inverter topology can be reconfigured from three-phase six-switch structure into three-phase four-switch which is achieved by connecting the endpoint of fault(More)
The LCL ̄lter has been widely used in inverter design due to its excellent attenuation capability for the switching harmonics. Nevertheless, the large cost associated with the conventional threephase LCL ̄lter has limited its usage. This paper proposes a multiple magnetic integration strategy of the LCL ̄lter to reduce the cost while increasing power(More)
Three-phase four-wire Shunt Active Power Filters (SAPFs) can not only compensate the harmonics and reactive power for kinds of unbalanced nonlinear loads, but also suppress the neutral current. According to the disadvantages of conditional control strategies in dq0 frame for APF systems, a control strategy based on abc frame for three-phase four-wire SAPFs(More)