A frequency converter is an electrical control device that utilizes variable-frequency technology and microelectronics to regulate AC motors by adjusting the motor's power supply frequency. It primarily consists of a rectifier (AC to DC), filter, inverter (DC to AC), braking unit, drive unit, detection unit, and microprocessor unit.

By controlling the switching of internal IGBTs, the frequency converter adjusts the output power's voltage and frequency, supplying the motor with the required voltage to achieve energy savings and speed control. Additionally, frequency converters incorporate various protection functions, such as overcurrent, overvoltage, and overload protection.

With the continuous advancement of industrial automation, frequency converters have seen widespread adoption across numerous applications.

Features of Frequency Converters:

① Multi-level PWM control, output voltage waveform approximates a sine wave.
② Multi-pulse rectifier circuit, high power factor, low input harmonic distortion.
③ Modular design, compact structure, easy maintenance, and enhanced interchangeability.
④ Direct high-voltage output, eliminating the need for an output transformer.
⑤ Extremely low dv/dt output, requiring no additional filters.
⑥ Some models use fiber-optic communication technology, improving anti-interference capability and reliability.
⑦ Automatic power cell bypass function, enabling uninterrupted operation during faults.

Frequency Converter Brand Categories:

• Tier 1 Domestic Brands: Inovance, INVT, EURA, Senlan, etc.

• Tier 2 Domestic Brands: Oulu, Sinee, LHHT, Veichi, Zoncn, Puten, etc.

Advantages of Oulu Frequency Converters:

1. Compact size, lightweight, space-saving.

2. User-friendly operation, intuitive interface.

3. Multiple built-in functions to meet diverse processing needs.

4. Comprehensive integrated features.

5. Excellent environmental adaptability, low noise.

6. Wide power range availability, including custom designs.

Competitive Advantages of Oulu in the Market:

1. High cost-performance ratio for products within the same line and region.

2. Competitive pricing for bulk purchases.

3. Strict adherence to regional sales policies, prohibiting cross-regional sales.

4. Strong protection measures for distributors and agents.