Title :
The effect of grid operating conditions on the current controller performance of grid connected photovoltaic inverters
Author :
Goh, Hong Soo ; Armstrong, Matthew ; Zahawi, Bashar
Author_Institution :
Sch. of Electr., Newcastle Univ., Newcastle upon Tyne, UK
Abstract :
This paper investigates the interactions which arise between grid connected photovoltaic inverter systems and the electrical grid. In particular, it considers the effect of grid voltage harmonics and grid impedance on the current control performance of grid connected inverter systems. In these photovoltaic inverter systems it is usual to control unity power factor, sinusoidal, current into the grid with low levels of distortion. However, due to the time varying nature of the grid it can be difficult to design a system which will always meet power quality standards. To overcome this problem, a better understanding of the impact of the grid operating conditions on the performance of the inverter is required.
Keywords :
electric current control; invertors; photovoltaic power systems; power factor; power grids; power supply quality; power system harmonics; current controller; electrical grid; grid connected photovoltaic inverters; grid impedance; grid voltage harmonics; power factor; power quality; renewable energy systems; voltage source inverters; Electric current control; Impedance; Photovoltaic systems; Power electronics; Power quality; Pulse width modulation inverters; Reactive power; Resonance; Solar power generation; Voltage; Harmonics; Photovoltaic; Power Quality; Renewable Energy Systems; Voltage Source Inverters (VSI);
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9