• Electronic Enterprises (India) Private Limited

Solar Array Simulator

Electronic Enterprises (India) offers Elgar brand TerraSAS Solar Array Simulator from Ametek. Programmable power offers a fully integrated solution for the design, development and production testing of inverters and micro-inverters for domestic and industrial solar energy systems. The TerraSAS simulates photovoltaic (PV) dynamic solar irradiance and temperature characteristics over a range of weather conditions from clear to cloudy and over a specified time interval to produce the current/voltage (IV) characteristics for the specified PV array for those conditions. For ease of use, the system's simulation engine is able to download data from the National Renewable Energy Laboratory (NREL). Solar Advisor Model database defining key parameters: open circuit voltage (Voc), short circuit current (Isc) and maximum power point voltage (Vmpp) at 25°C and 1000 W/m² irradiance – so that the IV curve can be calculated according to a standard solar cell model for virtually any fill factor or solar material. Other PV panel IV curves can be entered manually. The modular, rack-mounted Elgar TerraSAS system offers the following:

• One or more programmable DC power supplies with optimised, high-speed output response available in 1 to 15 kW increments
• A controller module and simulation engine for implementing the sequencing of the PV panel(s) IV curves
• Power supplies that can be configured master/auxiliary to provide high power systems
• User friendly keyboard and Graphical User Interface (GUI) display
• Relays for output isolation and polarity reversing.