Forming apparatus OUTPUT VOLTAGE Autonomous inverter for asynchronous motor control

摘要

The invention relates to electrical engineering and can be used to control a voltage inverter in autonomous variable frequency AC motor drives. The technical result of the proposed model is the formation of the output voltage auxiliary inverter voltage for powering the induction motor at a predetermined rotational speed and torque on the shaft for the changes of both internal and external factors affecting the engine while maintaining stability, accuracy and quality of rotation frequency regulation. Summary of the utility model: forming auxiliary device inverter output voltage for controlling the induction motor is further introduced additionally autonomous inverter voltage sensor rotor speed induction motor, torque sensor to the shaft of the asynchronous motor, fuzzy controller, an adder, a control device and the conversion unit. Yield initial setting unit connected to the first entry point within the sector counter to the first input of a read only memory enable times of the inverter transistors to the first input of intervals and counter to the first entry sector of the counter, the clock output is connected to the second input of the counter points within the sector. carrier frequency generator output is connected to the second input meter intervals. Output voltage control oscillator connected to the first input unit exposure time, the first output point within the sector counter is connected to the second input constant storage time of switching of the inverter transistors, the second output of the counter points within the sector connected to the second input of sector counter. Yield permanent memory states auxiliary inverter connected to the second input of the time delay block. Exit time delay block is connected to the third input slot counter, slot counter output is connected to a first input of a read only memory state inverter. Yield sector counter is connected to a second input inverter permanent memory states. Yield permanent memory states of the inverter is connected to an autonomous inverter voltage sensor output induction motor rotor speed is connected to the first input of the fuzzy controller. Output torque sensor on the shaft of the asynchronous motor is connected to the second input of the fuzzy controller. Yield fuzzy controller connected to the first input of the adder. adder output is connected to the input conversion unit, the first output of the block conversion is connected to the input of the voltage control oscillator, the second output of the block conversion connected to the first input of the clock generator, the first control apparatus output is connected to the second input of the clock generator, the second control apparatus output is connected to the second input of the adder .