Title :
Influence of distributed photovoltaic system on the voltage of distribution networks with probabilistic model
Author :
Yu-yao Yang ; Yong-jun Zhang ; Lin-hao Ye
Author_Institution :
Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China
Abstract :
The grid-connected photovoltaic (PV) system makes a great influence on reactive-voltage characteristics of distribution networks. Based on the β-distribution of solar irradiance, the probabilistic distribution model of PV power system is established in the paper. Considering the probabilistic impact of solar radiation on the output of PV power system, the simulation of voltage profile in distribution networks including PV in three typical weather conditions is provided. The law of voltage distribution and fluctuation in PV grid-connected distribution networks is demonstrated. The result also shows that the probabilistic model of PV can reflect the randomness and volatility of PV output and power quality issues such as over-limit voltage that PV power brings.
Keywords :
power distribution reliability; power grids; solar cell arrays; solar radiation; statistical distributions; voltage distribution; PV array; PV grid-connected distribution networks reactive-voltage characteristics; distributed photovoltaic system probabilistic distribution model; power quality issues; solar irradiance β-distribution; solar radiation; Mathematical model; Meteorology; Photovoltaic systems; Power systems; Probabilistic logic; Solar radiation; distribution networks; photovoltaic power; probabilistic model; voltage fluctuation;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2014 IEEE PES Asia-Pacific
DOI :
10.1109/APPEEC.2014.7066067
