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This paper presents a novel discrete-time passivity-based sliding-mode control (PB-SMC) strategy which has been applied to control the current-source inverter (CSI). The proposed control strategy is obtained by combining sliding-mode control (SMC) with passivity-based control (PBC), which not only maintains the good robustness and dynamic performances of the two control methods, but also reduces the...
Due to the switching operation, the pulse-width modulation (PWM) converters are inherent time-variant systems with comprehensive dynamics. The generalized state-space averaging (GSSA) method is an approach to model them as time-invariant systems, defined by a set of differential equations and capable of representing circuit waveforms. This paper proposes a new generalized state-space averaging model...
A novel third-order sliding mode control strategy for Buck inverter is proposed based on Lie derivative method in this paper. The geometry associated with the sliding mode control is presented for the analysis and design of the control scheme. The inverter is composed of two symmetrical current bi-directional Buck converters controlled by two independent sliding mode controllers. Base on the equivalent...
In this paper, dynamic analysis of a current source ICPT system is performed based on the circuit equations of each stage in an operation cycle. From the solution, frequencies of different stages are discussed. Besides a common frequency of the circuit, the other two are resonant frequencies of each side of the transformer. A simplified form of frequency expression is obtained. It is found that in...
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