Universal Control of Permanent Magnet Synchronous Motors with Uncertain Dynamics

This paper focuses on the universal control design of permanent magnet synchronous motors (PMSMs) with uncertain system dynamics. In vector control, classical proportional-integral (PI) controllers are used to control d-q axis currents and speed of the PMSM. This paper uses two control methods: conventional field-oriented vector control and simplified control. First, all the control gains are determined for numerous PMSMs with various power ratings using an empirical study and generalized mathematical expressions are derived for each of the gains. Then, these expressions are used for automatic gain calculation for various PMSMs with a wide power-rating range. In vector control, the control gains are determined using only the motor power ratings. In the simplified control, generalized control gain expressions are obtained using the number of pole pairs and the flux linkage. Compared to the vector control, the simplified control method provides much simpler generalized mathematical expressions. Validation is carried out in MATLAB/Simulink environment using various PMSMs from 0.2 HP to 10 HP, and results show accurate tracking of reference speed and d-q axis reference currents. Thus, the proposed gain scheduling approach is effective and can be used for self-commissioning motor drives.

RESEARCH OF MICROWAVE CIRCUITS CONTROL COMPUTER APPLIANCES IN RECEIVER-TRANSMITTER MODULE OF ACTIVE PHASED ARRAY ANTENNA

Design conception of control module of microwave receiver-transmitter module of active phased array antenna is presented in this work. Universal control module is designed for reception of commands from antenna control system and transmission of commands to multidigit phase shift modules, attenuators and switches. It also provide module addressing. Logic of assignment of adresses to users and division of them to groups is realised