| Autor: |
Acker, Thomas L., Willy, David M., Flood, Ronald K. |
| Předmět: |
|
| Zdroj: |
SOLAR Conference Proceedings; 2014, Vol. 2, p503-510, 8p |
| Abstrakt: |
Solar irradiance. as measured by a single pyranometer, can vary in excess of 80% from one second to the next, due to clouds passing over the sensor. This variation in irradiance translates directly into variation in power output of a solar photovoltaic (PV) power plant, though the large size of the plant compared to the sensor decreases the rate of these fluctuations due to spatial smoothing. In order to characterize the nature of these variations, a method of splitting-out PV power fluctuations into the 1-minute "regulation" and the sub 1-minute "sub-regulation" time scales is proposed. Results for a 2.6-MW PV power plant owned by Arizona Public Service Company are presented, focusing on 1-minute and 1-second fluctuations and related ramp rates. While many short, high magnitude ramps were experienced at the plant, none of them adversely affected voltages levels at the point of interconnect, the distribution feeder or the transmission substation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
