As the professional manufacturer, SPX would like to provide you high quality frequency converter, which is an electrical control device capable of altering the frequency and voltage of alternating current (AC) power. By virtue of power electronic technology, it first converts the fixed-frequency and fixed-voltage AC supplied by the power grid into direct current (DC), then inverts the DC back into adjustable-frequency and adjustable-voltage AC to power electric motors.
Our durable frequency converter is mainly composed of rectifier (AC to DC), filter, inverter (DC to AC), braking unit, driving unit, detection unit, microprocessor unit and other components. Pulse Width Modulation (PWM) is the core technology adopted, which generates an output current equivalent to a sine wave through synthesis. Classified by control modes, there are V/F control, vector control and direct torque control: V/F control features a simple structure and low cost, making it suitable for loads with low dynamic performance requirements; vector control offers high speed regulation accuracy and fast response, which is applicable to high-precision scenarios; direct torque control eliminates the need for complex vector transformation and delivers a faster torque response speed.
1. Save energy.
Our high-quality inverters use advanced V/F control, vector control (customizable) algorithms to match load demands in real time. Average energy savings of 20%-50% can dramatically reduce your long-term operating costs with a short return on investment. Especially suitable for fans, pumps, compressors and other long-term operation of the equipment.
2. Precise control
Vector control mode realizes high precision speed and torque regulation. It can effectively improve that proces precision of the product, stabilize the production process and reduce the defective rate. It is suitable for machine tool, textile, production line transmission and other occasions requiring accurate speed regulation.
3. Start-stop natural
Our rugged drives provide smooth start and stop, effectively avoiding the current surges of a direct start. Effectively reduce mechanical wear, prevent water hammer effect, and reduce failure rate and maintenance cost.
Frequency converters boast prominent advantages and are widely used in industrial production, heating, ventilation and air conditioning (HVAC), building transportation and other fields.
