The PAS 5000L Series Grid Simulation Power Supply (Grid Simulator) is a dedicated system for simulating grid characteristics specifically for PV grid-tied inverters testing. It is developed for the new energy industries such as photovoltaic and wind power, suitable for inverter testing and validation. The power supply features grid energy feedback function, capable of four-quadrant operation, which significantly reduces energy consumption and operation costs. Employing FPGA digital control technology, the inverter testing process can be fully automated. It offers sine wave output mode and various harmonic superimposed output modes, single-phase, two-phase, or three-phase high (zero) voltage crossing, allowing for a comprehensive simulation of various normal and abnormal grid conditions.
Key Features:
■ Full reverse feed function to return the input AC source energy to the power grid, saving energy; no need to connect a load, and the test platform is easy to build.
Utilizes PWM rectification technology with high input power factor and minimal impact on grid harmonics.
■ High dynamic response and instantaneous current control function
Real-time circuit monitoring, capable of effectively protecting equipment against reverse-feeding high currents.
Three-phase voltage and phase angle independently adjustable
■ Equipped with high-performance voltage (zero) crossing, step, sag, flicker, and other testing functions, capable of conducting 1ms crossing tests
Voltage and frequency can be set via complex programming, easily achieving over/under voltage and over/under frequency tests.
External zero-voltage crossing synchronous trigger signal dry contact, convenient for user testing
■ Can be used for islanding prevention tests
■ featuring optional DC output function, output DC voltage is not adjustable
Utilizing advanced Direct Digital Frequency Synthesis (DDS) waveform generation technology, featuring high frequency stability and excellent continuity.
Data Setting Storage: Multiple sets of test data storage, allowing for the storage of commonly used parameters (voltage V, frequency F, etc.) for easy user construction of standardized testing procedures.
■ Protection Modes: Overvoltage, Overcurrent, Overload, Short Circuit, Overtemperature, etc.
■ Offer RMS voltage, RMS current, active power, frequency, power factor, and other readings
■ 100% loading and unloading with a response time under 2ms, strong overload capacity, and instant current can withstand twice the rated current
Human-Machine Interface: Voltage, frequency, and time touchscreen settings with high accuracy.
Capacity grades wide (6kVA to 1500kVA), supports high power testing requirements
■ Available with communication interfaces including RS485 (standard), RS232 (optional), CAN (optional), LAN (optional), and GPIB (optional)
Application Fields:
■ Research and development, certification, and production testing for photovoltaic inverters manufacturers
Certification Agency Laboratory
University and Research Institutions
Field testing of photovoltaic power stations
