Programmable AC Test Power Supply ANGS series

The ANGS(F) Series Programmable Grid Simulator is specially developed for the new energy industries such as photovoltaic and wind power, applicable to inverter testing and verification. The power supply adopts FPGA digital control technology, able to completely realize the intelligent test process of inverters. With sine wave output mode and a variety of harmonic superposition output mode, single-phase, two-phase or three-phase low (zero) voltage ride-through, it is capable of fully simulating various abnormal grid conditions, able to assist in completing the overvoltage/undervolt age, overfrequency/underfrequency, unbalance and anti-islanding protection function tests, meeting the testing requirements of the relevant laws and regulations.

• Adopt FPGA digital technology, realize an intelligent inverter testing process;

• High performance low (zero) voltage ride through;

• Voltage and frequency can be set as complex programming, such as Step, stage, or variations, overvoltage/undervoltage, over-frequency/under-frequency test;

• Harmonic mode can be superimposed with 2-50 harmonics;

• Three-phase Unbalanced mode, adjustable three-phase voltage and three-phase phase difference, realizes three-phase Unbalanced test;

• High voltage DC output. Loop test combining PV inverter;

• Operating in overcurrent shock (up to 3 times the rated current) within 2s, strong load capacity;

• Complete measurement function: voltage, current, peak current, frequency, active power, apparent power, power factor, voltage crest factor;

• Online monitoring: IGBT temperature, transformer temperature, fan speed, input voltage, and other parameters in the output state;

• Operating data recorder: Automatically records the power status, alarm code, etc., in case of an alarm, greatly reducing maintenance time;

• Automatic fan speed adjustment according to the temperature of the power supply, quiet;

• Lock key, user-friendly design, automatically locking after no operation for 5 minutes to prevent misuse;

• Combination cabinet, 8" large-screen color LCD;

• Standard RS232, optional RS485, GPIB, Ethernet port, or analog control mode.

High and low voltage ride-through: The programmed output mode set for the photovoltaic industry is used to simulate the process of grid fall and recovery, and is capable of simulating a variety of modes such as zero voltage ride-through, low voltage ride-through, high voltage ride-through, and a combination of high and low voltage ride-through, and arbitrarily setting the voltage, maintenance time, ride-through angle, recovery voltage, etc.

Unbalance: U, V and W phases and voltages can be set separately, or the degree of unbalance can be set directly.

Transient change: An output method that simulates transient change in voltage, able to perform 1ms zero voltage ride-through.

Programming: It has universally programmable settings, where voltage, frequency and phase can be changed according to single-step settings. Trigger phase and loop count can be set, and parameters of three-phase outputs can be separately configured. Any phase jump/ride-through test can be achieved.

Harmonics: The power supply has the harmonic editing function (2 - 50 times), able to add harmonics based on the standard sine wave, and set the harmonic content and angle, with single harmonic up to 30%, and the total harmonic content and number of harmonic superpositions unlimited. Moreover, it has 50 harmonic storage groups for quick call.

Interharmonics: The power supply has the interharmonic editing function, allowing addition of interharmonics based on the standard sine wave. Interharmonic trigger angle, frequency, content, and scan time can be set, with an interharmonic frequency range of 16 - 2,500Hz.

Flicker: The power supply can simulate the flicker characteristics of the power grid and test the flicker adaptation of the DUT.

Large-size color LCD: numeric key input, knob operation.

Computer control software