A. A. Xashimov, M. M. Mirxaydarov elektr yuritma


 GENERAL PRINCIPLES OF REGULATION



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4. GENERAL PRINCIPLES OF REGULATION 
ELECTRIC DRIVE
………………………………...………………….112 
4.1. Adjustable electric drive – the main type of automated electric drive.
ninety three……………………………………………………………..112 
4.2. Indicators speed control………………………………………………...115 
4.3. Control questions for self-ehamination………………………………...122
 
5. ADJUSTABLE ELECTRIC DRIVES WITH 
MOTORS DC
……………………………………..……………………124
 
5.1. Electromechanical characteristics of DC motors independent 
excitation………………………………………………………………124 
5.2. Electric Drives in the thyristor Converter-motor system
direct current……………………………………………………………136 
5.3. Drive with DC motors with serial excitation…………………………...151 
5.4. DC electric drives with pulse width regulation………………………...160 
5.5. Control questions for self-checking……………………………………165 
6. ADJUSTABLE ELECTRIC DRIVES WITH MOTORS 
ALTERNATING CURRENT. ONE HUNDRED FORTY
………….167
 
6.1. Control methods of the induction motor……………………………….167 
6.2. Asynchronous electric drive with frequency speed control……………170 
6.3. Electric drive in the frequency Converter system with 
direct connection-asynchronous motor………………………………...179 
6.4. Electric Drive on the system frequency Converter type Autonomous 
inverter-asynchronous motor…………………………………………...183 


13 
6.5. Asynchronous valve stages and motors dual power supply……………189 
6.5.1. Dual power Motors…………………………………………………..196 
6.6. Valve motor…………………………………………………………….201 
6.6.1. Electric drive system transistor switch-valve permanent magnet
motor…………………………………………………………………202 
6.6.2. Electric drive system thyristor commutator - synchronous motor.......207 
6.7. Control questions for self-checking……………………………………209 

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