Introduction
LVAF active power filter is a new power electronic device of dynamically suppressing harmonics, reactive power compensation, through real-time detection of the load current waveform and DSP calculation, to obtain content of load current harmonic, then a PWM signal to inverter controlled by IGBT, such, to produce a current as big as load harmonic current but opposite direction into power supply system. Finally, the harmonic is filtered
Application
It is suitable for any non-linear loads like:
softstarter
UPS,Inverter,EV charger etc
Lift,welding machine,control motor
Electronics data handle,IDC
Lights
Main Parameter
Rated voltage: 0.4kV
Frequency: 45Hz ~ 63Hz
Efficiency: 97%
Filtering capacity: THDi (current distortion rate) < 5%
Response time: less than 15ms
Communication interface: RS485, network port
Communication protocol: the power of the general protocol, Modbus protocol, TCP/IP
Protection grade: IP20, the remaining IP grade can be customized
APFM Module -type Feature
Compact and reasonable structure, flexible installation.
Advanced control algorithm, software reliability.
Double DSP control system, using vector screening technology.
Dynamic filter 2 to 50 harmonics, may optionally specified harmonic filter.
Harmonic compensation, reactive power compensation and three-phase unbalance compensation.
Various capacity module, arbitrary combination and capacity expansion machine, good performance, to meet the different needs of the system capacity.
Standard communication interface and communication protocol.
Fault alarm and recording function, can be as much as 500 alarm records.
With all kinds of complete and effective protection measures, such as over-voltage protection, under voltage protection, short circuit protection, inverter bridge reverse protection, compensation protection etc.
Load change process, if the resonance, APFM self judgment and exit system
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