PARVEX motor, German PARVEX model, PARVEX price

PARVEX motor refers to a low-power single-phase asynchronous motor powered by a single-phase AC supply (AC220V). This type of motor typically has two-phase windings on the stator, and the rotor is of the standard squirrel-cage type. Different distributions of the two-phase windings on the stator and different power supply conditions can produce different starting and operating characteristics.

PARVEX motor applications

Motors have broad application prospects in the following areas: (1) High-speed motors are used in various applications such as centrifugal compressors in air conditioners or refrigerators. With the development of science and technology, special requirements are increasing, and their applications will become more widespread. (2) With the development of hybrid vehicles in the automotive industry, high-speed generators with small size and light weight will receive significant attention and have good application prospects in hybrid vehicles, aviation, ships, and other fields. (3) High-speed generators driven by gas turbines are compact and highly maneuverable. They can be used as backup power for important facilities, or as independent power sources or small power stations to compensate for the shortcomings of centralized power supply, having significant practical value. Since the centrifugal force on the rotor of a high-speed motor is proportional to the square of the linear velocity, high-speed motors require high mechanical strength. Additionally, due to the high frequency and high iron losses in high-speed motors, the magnetic flux density in the iron core should be appropriately reduced during design, and low-loss iron core materials should be used. Bearing research is also closely related to high-speed motors, because standard bearings struggle to withstand long-term operation in high-speed systems; therefore, bearings with new materials and structures must be used. High-speed motors can have various structural forms, such as induction motors, permanent magnet motors, and reluctance motors. The centrifugal force on the motor during high-speed rotation is very large. When the linear velocity reaches 200m/s or above, standard laminated rotors cannot withstand the centrifugal force generated by high-speed rotation, requiring special high-strength laminated or solid rotors. In the nearly century-long history of rotor dynamics development, many calculation methods have emerged. Modern calculation methods can mainly be divided into two categories: the transfer matrix method and the finite element method. The finite element method offers concise and standardized expressions of motion equations, providing many advantages when solving rotor dynamics problems or complex mechanical systems composed of the rotor and surrounding structures. The finite element method involves extensive discretization of complex rotor systems, and its calculation results are more accurate than those of the transfer matrix method; however, it requires longer computation time and occupies more memory. The development of modern computer technology has provided favorable hardware support for the finite element method.

PARVEX motor working principle

The simplified structure diagram of the relay in the motor consists of an electromagnet mechanism and a contact assembly. The coil is connected to the ignition switch terminal on the housing and the ground terminal "E", respectively. The fixed contact is connected to the starter motor terminal "S", and the movable contact is connected to the battery terminal "BAT" via the contact arm and bracket. The starter relay contacts are normally open. When the coil is energized, the relay core generates electromagnetic force, causing the contacts to close, thereby connecting the circuits for the pull-in coil and holding coil controlled by the relay. The control circuit includes the starter relay control circuit and the starter motor solenoid switch control circuit. The starter relay control circuit is controlled by the ignition switch, with the relay coil circuit as the controlled object. When the ignition switch is turned to the start position, current flows from the positive terminal of the battery through the starter motor power terminal to the ammeter, then from the ammeter through the ignition switch and relay coil back to the negative terminal of the battery. Consequently, the relay core generates strong electromagnetic attraction, closing the relay contacts and connecting the control circuit of the starter motor solenoid switch. Battery positive terminal → Starter motor power terminal → Solenoid switch → Field winding → Armature winding → Ground → Battery negative terminal, thus generating electromagnetic torque in the starter motor to start the engine.

PARVEX motor working principle

The motor uses capacitor phase shifting to separate another phase of AC power with a phase difference of 90 degrees from the single-phase AC supply. These two phases of AC power are fed into two or four sets of motor coil windings, forming a rotating magnetic field within the motor. This rotating magnetic field induces current in the motor rotor. The magnetic field generated by the induced current opposes the direction of the rotating magnetic field, pushing and pulling the rotor into rotation. Since the rotor must cut magnetic flux lines to generate induced current, the rotor speed must be lower than the speed of the rotating magnetic field; hence, it is called an asynchronous motor. Three-phase asynchronous motors do not require capacitor phase shifting, as they inherently have three-phase AC power with a phase difference of 120 degrees, resulting in a more uniform rotating magnetic field and higher efficiency. The magnetic field of a permanent magnet synchronous AC motor is generated by permanent magnets. The rotor coil is powered via brushes, and the speed is an integer multiple (or fraction) of the AC frequency (depending on the number of rotor coil windings); hence, it is called a synchronous motor. Motors where the rotor coil is powered via brushes and the stator generates a rotating magnetic field through coil windings are classified as series-wound or shunt-wound motors based on the series or parallel relationship between the rotor and stator coils. A DC motor consists of two main parts: the stator and the rotor. The stator has magnetic poles (wound or permanent magnet), and the rotor has windings. When energized, a magnetic field (magnetic poles) is formed on the rotor. There is an angle between the magnetic poles of the stator and the rotor. Under the mutual attraction between the stator and rotor magnetic fields (between the N pole and the S pole), the motor rotates. Changing the position of the brushes changes the direction of the angle between the stator and rotor magnetic poles (assuming the stator's magnetic pole is the starting side of the angle, and the rotor's magnetic pole is the other side; the direction from the rotor's magnetic pole pointing to the stator's magnetic pole is the direction of motor rotation), thereby changing the direction of motor rotation.

Weidou Intelligent Technology specializes in selling German PARVEX motors, PARVEX motors, PARVEX drives, PARVEX synchronous motors, PARVEX servo motors, PARVEX DC motors, PARVEX AC motors, PARVEX stepper motors, PARVEX synchronous motors, PARVEX asynchronous motors, PARVEX single-phase motors, PARVEX three-phase motors, PARVEX drive motors, PARVEX geared motors, PARVEX electric motors, PARVEX original German imports. Customers are welcome to inquire and order.