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Help CenterRuitong Low Voltage Active Power Filter APF Device Harmonic Control Installation
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Overview: Ruitong Active Power Filter (RT-APF) is a new type of power harmonic control equipment made by modern power electronics technology and digital signal processing technology based on high-speed DSP devices. It consists of two main parts: the command current operation circuit and the compensation current generation circuit. The command current operation circuit monitors the current in the line in real time, converts the analog current signal into a digital signal, and sends it to a high-speed digital signal processor (DSP) to process the signal, separate the harmonic from the fundamental wave, and pulse width modulation ( The PWM signal form sends a drive pulse to the compensation current generating circuit to drive the IGBT or IPM power module to generate a compensation current equal to the harmonic current amplitude of the grid and opposite in polarity, which is injected into the grid to compensate or cancel the harmonic current and actively eliminate Power harmonics. |
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Main technical features: -- Three-level topology is adopted to effectively reduce the ripple current and improve the quality of the output waveform; uInfrared high-integration three-level IGBT module from Infineon, Germany, with low voltage stress, high reliability, reduced conduction loss and switching loss; -- Using TI's TMS320F28377D series DSP chip, with dual-core 32-bit CPU, high control precision, fast speed, multiple 16-bit ADC, high sampling accuracy; -- Using a magnetic loop reactor, it has the characteristics of small size, light weight, low temperature rise and low noise; -- High-performance Hall current sensor and Hall voltage sensor with high sampling accuracy; Modular design for easy installation and capacity expansion; -- has a variety of compensation modes: harmonic control priority, reactive power compensation priority, active imbalance adjustment priority and other adjustment modes; -- Filtering capacity 2 to 50 times, harmonic filtering rate is greater than 97%; -- The corresponding time is less than 10ms, the control is fast, and the transient stability is improved; Complete protection function for busbar overvoltage, undervoltage, lack of external electrical faults and internal faults such as IGBT overheating and overcurrent; -- It has two structure modes: rack-mounted and wall-mounted, which is convenient for installation. --The production and inspection procedures are complete. All products undergo 12-step production process, 4 inspection procedures and 72-hour aging test. |
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The main technical parameters: The main technical parameters of the active power filter device module (RT-APF) are as follows: Rated capacity 50A 100A 150A Rated voltage AC380V±15%/690V±15% Electrical wiring three-phase three-wire, three-phase four-wire Rated operating frequency 50Hz ± 5% Filter range 2-50 times Filtering capacity ≥ 97% Machine efficiency ≥ 97% Automatic current limiting function Intelligent protection Power-on self-test, overcurrent protection, DC voltage protection, overheat protection, system undervoltage and overvoltage protection, etc. Number of parallel units up to 10 units Switching frequency 15K-20kHz Full response time ≤ 10ms Controller DSP (Dual Core) + FPGA Display mode Communication protocol Modbus protocol Protection level IP30 (other levels can be customized) Air cooling method Noise ≤65dB Installation method Rack type, wall mounted Ambient temperature -5 ° C ~ +40 ° C, and the average temperature within 24 h is not higher than +35 ° C. Relative humidity 15%～90% when the room temperature is below +20°C, non-condensing, no more than 50% at +40°C Altitude less than 1500 meters (Between 1500 and 4000 meters, according to the national standard GB/T3859.2, for every 100 meters increase, the power is reduced by 1%) Dimensions Width × Depth × Height 440 * 660 * 222 mm (special size can be customized) The active power filter device cabinet is mainly composed of active power filter device module and incoming switch and other supporting components. It is suitable for 800*800*2200, 1000*1000*2200 and other conventional cabinets. The single-sided cabinet can be installed up to 4 Active power filter device module, which constitutes a 400A cabinet type APF. |
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