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Abstract

In this paper we give a description of the measurement techniques and the equipment for field assessment of the performance of large photovoltaic arrays. The data of interest are the irradiation conditions, the ambient parameters and the corresponding load characteristics (current - voltage curves) of the array. The devices selected for these measurements must be sufficiently accurate, portable and rugged. The load controlled capacitive load which was developed by ESTI; precise radiation measurements are performed with various instruments including calibrated solar cells and radiometers; ambient parameters (wind speed, temperatures etc.) are also recorded. During the past months these methods have been successfully used for the performance test of various from 10 kW to 300 kW, with voltages of up to 500 V and currents exceeding 40 A. Some of the problems encountered during these measurements concerning extrapolation to standard test conditions, cell and spectrum mismatch, field of view effects etc. are discussed.

Additional information

Authors: BLAESSER G, JRC ISPRA ESTAB. (ITALY);KREBS K, JRC ISPRA ESTAB. (ITALY);OSSENBRINK H, JRC ISPRA ESTAB. (ITALY);VERBAKEN J JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: 5TH EC PHOTOVOLTAIC SOLAR ENERGY CONFERENCE, KAVOURI, ATHENS (GREECE), OCT. 17-21, 1983 - WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31228 ORA
Availability: Can be ordered online
Record Number: 1989122034400 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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