Speed control of multiple induction motors of electromagnetic shaft synchronization system

Speed Control in Electromagnetic Synchronization System with Two Single Phase Induction Motors by Rotor Flux Regulation

“…In order to analyze the suggested system, a mathematical model is proposed. The additional threephase RL-element in the common rotor circuit of both motors, the forward and backward sequence circuits are considered in the proposed mathematical model [4], [5]. Considering the first motor as master motor and the second motor as slave, the forward and backward equivalent circuits can be designed as shown in Fig.…”

“…Such systems may be found in textile industry, paper machines, cranes, drug production lines, offset printing, reel machines, computer numerical control machines and other applications [4]- [20]. The most popular among the traditional speed synchronization systems are synchronization systems with electromagnetic shaft [4], [5]. The electromagnetic shaft system consists mainly of two identical motors connected together by a common additional external three-phase inductive rheostat element (RL-element) in the rotor circuits as shown in Fig.…”

“…Each of the two motors, in this system, is connected to three wounded coils on a soft-iron ferromagnetic cylindrical cores, which are very similar to the transformer connection. One group of these coils (the primary coils) is connected to the rotor circuit of one motor and the other group (the secondary coils) is connected to the rotor other motor [2], [4] and [5].…”

“…In [16] authors studied the chaotic speed synchronization control of multiple induction motors using stator flux regulation. In [17] attention is paid to permanent magnet synchronous motors chaoization using stator proposed control methods that use a hybrid system and fuzzy logic as a methods for analyzing and managing of different applications of speed control [21] found with single-phase induction motors [2], [3], [14], [18] the attention will be paid to synchronization system with single The operation of such synchronization systems is based on the principle of electromagnetic transformation of energy. Each of the two motors, in this system, is connected to three iron ferromagnetic cylindrical cores, which are very similar to the transformer connection.…”

“…Some researchers have ed control methods that use a hybrid system and fuzzy logic as a methods for analyzing and managing of different applications of speed control [21]- [24]. Much less studies may be phase induction motors [2], [3], [14], [18]- [20]. Therefore, in the current paper, the attention will be paid to synchronization system with single-phase induction motors.…”