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Communication data in the communication network of the islanded micro-grid can be disturbed by many methods, such as data attack or packet loss. In order to overtake the communication data disturbance (CDD), a new hierarchical control structure is proposed in the paper. Based on the concept of cyber physical system (CPS), the control structure is divided into two layers: cyber layer and physical layer...
Based on the fact that both the phase and amplitude characteristics of fractional capacitor are related to its order, the introduction of fractional capacitor will make power factor correction (PFC) more flexible compared with the one using conventional capacitor. In order to verify the PFC function with fractional capacitor, an equivalent fractional capacitor model composed of an inverter and a resistor...
Since the wave energy power generation has a low voltage output and poor stability in low speed, the scheme of a compensation power generation scheme of two bilateral asymmetric linear switched reluctance generators (BALSRG) is proposed. The mathematic model of the BALSRG is derived and machine characteristics are investigated. Two control methods are discussed and compared. Experiment results demonstrate...
Since the wave energy power generation has a low voltage output and poor stability in low speed, the scheme of a compensation power generation scheme of two bilateral asymmetric linear switched reluctance generators (BALSRG) is proposed. The mathematic model of the BALSRG is derived and machine characteristics are investigated. Two control methods are discussed and compared. Experiment results demonstrate...
Due to the nonlinearity of DC-DC converters, small-signal methods do not guarantee the stability of DC-DC converters under any large-signal disturbances. In this paper, semi-tensor product of matrices with Lyapunov stability theorem is firstly adopted for analyzing the large-signal stability of DC-DC converters. A buck converter with proportional-integral (PI) controller is used as an example. Based...
A novel high-voltage Controllable SenseFET (C-SenseFET) by inserting the second gate and its conductance model is proposed in this letter. Compared with conventional incontrollable SenseFET, the new structure features a controllable sensing region “S-Region” and a stable charging region “C-Region.” While varying the second gate voltage, the conductance of the channel between the two gates G1 and G2...
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