Simulation studies of islanded behavior of grid-connected photovoltaic systems

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · IEEE Trans. Energy Conver.; (United States)

DOI:https://doi.org/10.1109/60.17909· OSTI ID:5986528

Vachtsevanos, G; Kang, H

Simplified computer models are presented for predicting the run-on time of self-commutated inverters operating in a utility interactive mode. The inverter receives dc power from the photovoltaic array and delivers ac power to a local load or the utility lines. The proposed models represent the dynamics of a phase-locked loop control circuitry which is designed to destabilize the inverter operation and shut down the power conditioning subsystem when a phase discrepancy between the line and some reference signal is detected. The sustained isolated operation (or islanding) of the PV system poses a possible safety concern to utility personnel and potential damage to utility connected equipment. Two computer models are implemented on an IBM PC using PASCAL and provide results compatible with experimental evidence and more elaborate computer modeling techniques.

• OSTI ID: 5986528
• Journal Information: IEEE Trans. Energy Conver.; (United States), Vol. 4:2
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
PHOTOVOLTAIC POWER PLANTS
COMPUTERIZED SIMULATION
AC SYSTEMS
DC SYSTEMS
EXPERIMENTAL DATA
IBM COMPUTERS
INVERTERS
PASCAL
PERFORMANCE
TECHNOLOGY ASSESSMENT
COMPUTERS
DATA
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
INFORMATION
NUMERICAL DATA
POWER PLANTS
POWER SYSTEMS
PROGRAMMING LANGUAGES
SIMULATION
SOLAR POWER PLANTS
140600* - Solar Energy- Photovoltaic Power Systems
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)