Ts-3 Study Of Moving Cloud Effects On The Power Quality Of Grid-Connected Photovoltaic pared With Simulation Of Pv Power Using A Dc Generator.pdf

Technical Digest of the International PVSEC-14, Bangkok, Thailand, 2004 LP3-001
Study of Moving Cloud Effects on the Power Quality of Grid- Connected
Photovoltaic pared with Simulation of PV Power Using a DC Generator

U. Sangpanich, J. Thongpron, K. Kirtikara and C. Jivacate

King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand.
Corresponding Author : < g_umarin@>

ABSTRACT system is identical to the actual system but has
a 10 kW DC generator replacing the PV array.
Power quality of inverter output of an operational
PV grid-connected system pared with that of Parameters under monitoring are radiation level,
the same inverter whose DC input is simulated by a inverter output, harmonics (voltage, current and
DC generator. A kW locally made grid- power) at the point mon coupling (PCC)
connected inverter is connected to a distribution between the inverter, the load and the distribution
transformer. The inverter DC input can be supplied transformer. Measurements are taken every second.
either by a kWp X-Si array in the actual
operational system or a separately-excited DC Under actual system operation, the rate of change
generator replacing the PV array. Simulation of of radiation due to moving clouds is random. For
moving cloud effects on PV output, hence inverter the purpose of analysis, we categorized mea