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The photovoltaic generator exhibits a non-linear i-v characteristic and its maximum power point varies with solar insolation. In this paper, a voltage based maximum power point tracking scheme is developed for the inverters. Mathematical models are formulated and then a tracking algorithm is evolved. Combined photovoltaic system simulation model is developed in the PSIM power electronic circuit simulator...
This paper proposed a nonlinear model for single-phase rectifier. With this model, the interactions between the inverters and rectifiers are characterized, the mechanism of output voltage distortion is investigated, and it is possible to analyze the transient response, system stability and to implement the design optimization of the inverter system under rectifier loads. The validity of the proposed...
A study of a micro-hydro run-of-the-river project using a squirrel cage induction generator is presented. A water current turbine, propeller type, is considered. A three-phase voltage source inverter is used to establish with deadbeat control on the AC side, the required currents to excite the generator. A DC control loop with PI controller is used to maintain the DC bus voltage constant with rotor...
In this paper, an AC-DC-AC three-phase transmission system that employs two six-switch inverters is studied. The inverters are connected by an inductive DC link, and are controlled in order to ensure a high power factor at the source side, a regulated voltage at the DC side and low-distorted currents at the load side. The inverters are modeled in the average regime in order to design suitable regulators...
The following topics were dealt with: power generation; equipment design; power system architecture; remote power feeding; decentralized power; grounding equipments; bonding equipments; VRLA; power storage; fuel cells; DC-DC converter control; inverter topology; UPS; photovoltaic energy; wind energy; power management; and power standards
In this paper, a new control method for the utility interactive inverter based on the deadbeat control with FPGA based hardware controller is proposed. Deadbeat control is one method to ensure the output voltage or current matches to the references at the sampling instant, so adopting this control method to the utility interactive inverter, the response of the system is much improved with small LC...
If the voltage of rectangular waveform produced in the inverter is used as a dc power supply through a half-wave rectifier, a smoothing capacitor and reactor can be made extremely small by using asymmetric two phase system. Although this basic concept has been already reported, the basic operation of the amplitude modulation converter, used in this system as a key element, has not been clarified yet...
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