IEEE 519
HARMONIC CONTROL IN ELECTRIC POWER SYSTEMS
Guaranteeing Safe Operation Improving Energy Efficiency
Active Harmonic Filter can realize 2nd to 50th harmonic compensation, compensation ratio can be set selectively by the customers, output compensation current follows the system harmonic variation, devoted to green power quality.
Different loads generate variety harmonic content which changes dynamically during different working conditions.
DYNAMIC COMPENSATION HARMONIC
Intelligent Fast Fourier Transform
One of the biggest characteristics of Active PQ solution is to use information technology to manage energy. With the characteristics of high accuracy and high speed of computing power, empower users PQ will obtain continuous, stable and infinitely close to the highest energy efficiency of power energy.
Intelligent FFT is an iterative FFT algorithm based on updated computing power and ten years of experience in field harmonic waveform database.
3-LEVEL TOPOLOGY
- One more output level, less ripple current content
- Output PWM waveform is more similar to sinusoidal wave, better harmonic compensation effect
- The volume of LCL filter is reduced, beneficial for DPS-AHF module design
- Less inductance loss, improving the system efficiency
- IGBT withstand voltage stress cut into half, effectively reduce the switching loss
- Less switching loss of IGBTs, more thermal margin, higher switching frequency
MODULAR DESIGN
Ultra-compact design, wall and rack-mounted structure and fine capacity distribution can fully meet customers’ needs, suitable for space limit application, retrofit projects.
Convenient for transportation and replacement, easy to be integrated into panel.
Flexible engineering cabinet design, plug cabinet, IP54 cabinet, top and bottom cable entrance design to comply with different customers’ needs
Upper and lower layer design, IGBT heatsink and inductor, which account for most heat of AHF, are concentrated in the lower layer, forcing air cooling, fast heat dissipation, and do not affect the upper PCBA
Upper PCBA auxiliary air duct design, expansion of heat dissipation channel, wide angle heat dissipation
TEN YEARS ITERATION
INDEPENDENT AIR
DUCT DESIGN
PLUG SUITE
Assist customers to build their own plug cabinet can offer AHF unit with plug suite, monitoring system, alarming indications lights, then the customer can build their own plug cabinet on site. Plug cabinet, no wiring, easy for integration and unit replacement, a more convenient and cost-effective solution for our customers
Standard AHF
NO.1 turnover globally, devoted to low voltage power quality application, single module capacity covering 25A to 300A, units unlimited parallel installation.
Harmonic compensation & Reactive power compensation & Three phase balancing 12 operation modes can be set according to different needs. Eg. “H+B+Q”: harmonic compensation first, then three phase balancing, the residual capacity can be used for reactive power compensation.
Certification：CE/UL/DNV/RINA/CCS/BV
Capacity: 25/35/50/60/75/100/150/300
Voltage: 220V/400V/480V/600V/690V
Monitoring: LED/4.3inch HMI/7inch HMI
Harmonic Filtering range: 2~50 orders
Switching frequency: average 20KHz
Efficiency: ≥97%
Wiring method: 3P3W/3P4W (same unit)
Rated frequency: 50Hz/60Hz ( auto sensingrange : 45Hz～62Hz)
