Title :
Capacitive idling techniques improve inverter performance
Author :
Knight, Joseph ; Shirsavar, Seyed Ali ; Holderbaum, William
Author_Institution :
Dept. of Electron. Eng., Reading Univ., UK
Abstract :
In this paper the authors present two new and closely related inverter topologies intended for use in photovoltaic (PV) systems. The topologies improve inverter performance by allowing true DC-AC inversion with very little distortion in both the DC and AC currents whilst minimising switching noise. The two topologies are based upon a novel form of Cuk converter, called the capacitive idling converter (R. Mahadevan, et al., 1983), which utilises an extra switch to improve its bandwidth, allow soft switching and independent control of input and output currents. In addition, to further improve the robustness, hysteresis control has been utilised.
Keywords :
DC-AC power convertors; electric current control; invertors; photovoltaic power systems; power capacitors; reliability; robust control; switching convertors; Cuk converter; DC-AC inversion; bandwidth improvement; capacitive idling converter; current control; current distortion; hysteresis control; inverter topology; photovoltaic system; reliability; robustness; soft switching noise minimisation; solar inverter;
Conference_Titel :
Power Electronics, Machines and Drives, 2004. (PEMD 2004). Second International Conference on (Conf. Publ. No. 498)
Conference_Location :
Edinburgh, UK
Print_ISBN :
0-86341-383-8
DOI :
10.1049/cp:20040363
