Active power filter 480a apf panel for dynamic harmonics
compensation
Active power filter(APF/AHF for short) is a perfect comprehensive
solution to power quality problems with power grid such as harmonic
wave(can filter 2nd to 50th harmonic interference completely),
reactive power, and 3 phase load unbalance.APF is connected in
parallel in power grid, to detect the harmonic wave in power grid
in real time, generate the reverse-phase compensation current
through the converter, and dynamically filter the harmonic wave in
power grid. The operation of APF is unaffected by power grid
structure and load type, and it will not produce harmonic
oscillation with the system, thus perfectly realizing harmonic wave
control of various loads. APF can also realize dynamic reactive
compensation, and control the capacitor switching, to improve the
power factor of power grid. Meanwhile, APF has the function of
controlling the 3 phase load current unbalance, thus
comprehensively solving various power quality problems with power
grid.
Applying world advanced power component
The world advanced IGBT component is applied, and the main circuit
is a bridge full-control type PWM converter, which is featured by
high power density and high reliability.
Digital control system
DSP high-speed detection and computation is employed, to ensure
precise and effective current detection and compensation control;
full digital control system is applied, so that the entire control
process is realized by the software, to make the entire control
system simpler and more reliable.
Monitoring and display system
Intelligent monitoring and display system is applied for flexible
operation of the devices, with the operation parameters and working
condition displayed clearly, the function of fault self-diagnosis
and telecommunication interface for real-time communication with
the host computer.
Unique group control system
SIKES is the first APF manufacturer in China that combines both
active technology and passive technology to realize an intelligent
control system using the active module to control the switching of
the passive module, namely an integrated control system, to ensure
the reliable operation of the equipment to the most extent.
| Description | APF series | APF4 series |
| Single module capacity | 25A , 50A , 100A |
| Capacity of the complete machine | 100A , 150A , 200A , 250A , 300A , 400A , 500A |
| Power supply voltage | 400x (l±20%) V or 660x (l±20%) V |
| Power supply frequency | 50x (l±10%) Hz |
| The number of harmonics can be filtered out | 2 times~61 times (eliminate all harmonics or specified harmonics ) |
| Filtering number setting | Individual setting for each harmonic wave is allowed |
| Efficiency | Reaching up to 98% |
| Neutral line filtering capability | — | One to three times of the phase line harmonic current |
| Total response time | £10ms |
| Compensation mode | Harmonic compensation, reactive power compensation or harmonic
compensation and reactive power compensation conducted
simultaneously |
| Parallel operation capacity | Up to 10 sets of complete machines |
| Active power loss | 3% rated output capacity |
| Display function (User Interface) | 1. Power; power factor; voltage and current value, total current
distortion rate, spectrum diagram, current waveform - Load current value and filter output current value
3. Operation mode setting, dry node setting, fault information and
operation time inquiry |
| Protection method | Input over-voltage, input phase dislocation/loss, over-current,
over-heat over-voltage/under-voltage of DC bus and automatic
current limiting protection of overload |
| Cooling mode | Forced air cooling |
| Protection grade | IP20/IP52, (higher protection class can be customized) |
| Color | RAL7035 |
| Direction of incoming line | U pwa rd/d ownwa rd |
| Installation environment | Indoor installation; recommended altitude for installation shall
not exceed 1000m (use with reduced capacity for high altitude) |
| Dimensions WxDxH(mm) | Module: 442x425x88(25A), 440x609x222(50A,100A) FCL: 800x800x2200 |
| Module weight | 10kg(25A),30kg(50A),40kg(100A) |
| Ambient temperature | Operating temperature: -25°C~50°C (use with reduced capacity for
higher ambient temperature) Storage temperature: -40°C~60°C |
| Communication | Remote RS485 Ethernet communication function (optional), and upper
computer monitoring software (optional) |
| Scope of application | Applied to the power grid system with neutral three-phase balance
in industrial field, and can filter non-zero sequence harmonics and
compensate reactive power | Applied to three-phase systems with neutral lines and can filter
out harmonics flowing through the phase lines and neutral lines at
the same time |
