Efficiency optimized speed control system of vector-controlled induction machine by optimal regulator theory.
スポンサーリンク
概要
- 論文の詳細を見る
In this paper, a new synthesis method for an efficiency optimized induction machine speed control system is proposed. Until now, the potential for energy saving in variable frequency induction motor drives has been demonstrated, and the control strategy yielding a reduction in losses have been analyzed. In these methods, losses analysis depend upon the T-type equivalent circuit using the root mean square values. The combination of stator voltage and frequency minimizing the induction motor losses was shown to be a complex function of the operating speed and torque. In this paper, the losses are estimated by an equivalent circuit in α-β axes at synchronously rotating reference frame under steady state.The controllable losses are described by the stator current proportional to torque and the current component in the direction of the rotor linkage flux. The optimal ratio of these currents for minimizing the controllable losses under a given output is analytically derived.The efficiency optimization is established by controlling the current ratio to be optimal. The efficiency optimized speed control system which attains maximum efficiency, vector control and zero steady state error for the desired signals simultaneously is proposed by an optimal regulator theory. Considerable improvment on the efficiency at the steady state and quick responses for the desired signal are obtained from simulation results of the efficiency-optimized speed control system.
- 公益社団法人 計測自動制御学会の論文
公益社団法人 計測自動制御学会 | 論文
- Self-Excited Oscillation of Relay-Type Sampled-Data Feedback Control System
- タイトル無し
- Mold Level Control for a Continuous Casting Machine Using an Electrode-Type Mold-Level Detector
- Assessment and Control of Noise:Pollution by Noise from General Sources
- Information network system and home automation.