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With the development of strong and smart grid, power grid and communication system become highly interconnected and mutually dependent. Complex network approach is applied in this paper to describe the interactive characteristics of hybrid power and communication systems in terms of topologies. Qualitative analysis of the impact of communication system on power grid is straightforward. However, quantitative...
PHEVs/PEVs have received increasing attention because of their low pollution emissions, low energy dependence, and high fuel economy. In the near future, most PHEV/PEV enabled parking decks are expected to be powered by small-scale and onsite distributed energy resources. This paper interfaces Microgrid components with the simulated PHEV/PEV parking station and evaluates the high penetration of PHEV/PEVs...
Due to power time-varying characteristic of a single phase photovoltaic (PV) grid-connected inverter in grid side, its front-end dc/dc converter tends to draw a large ac ripple current with double grid frequency, which would decrease maxim power point tracking performance of PV side. A novel method is proposed for the low frequency input current ripple analysis of a boost converter in a non-isolated...
In this paper, an adaptive droop resistance (ADR) technique can compensate for the adaptive voltage positioning (AVP) control in a boost dc–dc converter. A loop analysis is derived with the AVP technique to show the effects of the right-half-plane (RHP) zero. When the value of RHP zero is above the equivalent series resistance (ESR) zero, constant output impedance can be guaranteed by the proposed...
The fast boost DC-DC converter designed with adaptive voltage positioning (AVP) technique to minimized the right-half plane zero effect is proposed. The concept of constant output impedance is a universal design principle in former works with AVP design. However, the right-half plane (RHP) zero appear in control to output transfer function of boost converter obstruct achievement of constant output...
In this paper, an AC current sensorless control scheme of three-phase PWM rectifier is proposed. A method for reconstructing the AC currents from the DC-link current and switching state is given. A method of modifying the switching state of PWM rectifier is given when the input currents cannot be reconstructed. The control system based on SVPWM includes two PI controllers which are used to regulate...
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