AC generators; Control systems; DC generators; Feeds; Inverters; Photovoltaic cells; Photovoltaic systems; Power generation; Solar power generation; Voltage AC generators; Control systems; DC generators; Electric generators; Electric inverters; Electric potential; Feeding; Photoelectrochemical cells; Photovoltaic cells; Power electronics; Power generation; Solar cells; Solar energy; Solar power generation; Ac energies; Electric systems; High quality; Low distortion; Maximum output power; Output current; Photovoltaic arrays; Photovoltaic systems; Electric machine control