Title :
A newton quadratic interpolation based control strategy for photovoltaic system
Author :
Yun Liu ; Liyuan Chen ; Lin Chen ; Huanhai Xin ; Deqiang Gan
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
To maximize the economic benefits, the PV system in general operates on the so called maximum power point tracking (MPPT) mode. However, in certain occasions (e.g., in a microgrid or in a weak system), the PV cannot always operate on the MPPT mode but on the dispatchable mode for some time, due to the top priority of the system stability. To this end, a Newton quadratic interpolation based control strategy for the PV system is presented in this paper. With this novel strategy, the PV system can work on the dispatchable mode to flexibly adjust the active power output in some range, and it will automatically switch to the MPPT mode if necessary. The proposed control strategy is verified by simulation.
Keywords :
interpolation; maximum power point trackers; photovoltaic power systems; power generation control; power generation economics; power system stability; MPPT mode; Newton quadratic interpolation; PV system; active power output; control strategy; dispatchable mode; economic benefit maximization; maximum power point tracking mode; microgrid; photovoltaic system; system stability; MPPT; Newton quadratic interpolation; Photovoltaic (PV); dispatchable mode;
Conference_Titel :
Sustainable Power Generation and Supply (SUPERGEN 2012), International Conference on
Conference_Location :
Hangzhou
Electronic_ISBN :
978-1-84919-673-4
DOI :
10.1049/cp.2012.1781
