Chapter 14 permanent magnet AC motor drives
Chapter 14 permanent magnet AC motor drives
... Engineers, Inc. Published 2013 by John Wiley & Sons, Inc. PERMANENT- MAGNET AC MOTOR DRIVES 14 560 PERMANENT- MAGNET AC MOTOR DRIVES pi v i v i i r LL rdcststqs r ds r r T rl rl rl ΔΔ Δ ... Figure 14. 7-5. Start-up response of the closed-loop permanent- magnet ac motor drive. 50 0 40 -40 15 0 200 0 d i as ,A T e , N m 50 ms ^ ^ , rad/s 568 PERMANENT- MAG...
Ngày tải lên: 16/02/2014, 18:54
Chapter 4 permanent magnet ac machines
... (4.6 -14) It is left to the reader to show that (4.6 -14) , with ϕ v = 0, is (4.5-6) . 138 PERMANENT- MAGNET AC MACHINES The steady-state, torque-speed characteristics for the permanent- magnet ... Electronics Engineers, Inc. Published 2013 by John Wiley & Sons, Inc. PERMANENT- MAGNET AC MACHINES 4 140 PERMANENT- MAGNET AC MACHINES ii bs s r i =+− ⎛ ⎝ ⎜ ⎞ ⎠...
Ngày tải lên: 16/02/2014, 18:46
Use of an extension of the park's transformation to determine control laws applied to a non sinusoidal permanent magnet synchronous motor
Ngày tải lên: 03/01/2014, 19:50
Strategy for the instantaneous torque control of permanent magnet brushless DC drives2
Ngày tải lên: 03/01/2014, 19:52
Chapter 13 induction motor drives
... be the parameter of the machine, and that the machine was assumed to behave in accordance with the machine model described in Chapter 6. However, in reality, the machine parameter can vary ... Sons, Inc. INDUCTION MOTOR DRIVES 13 522 INDUCTION MOTOR DRIVES whereupon it can be shown that ′ = ′ + ′ λ λ λ dr e qr s dr s ( ) ( ) 2 2 (13.5-3) The difficulty in this approach is that...
Ngày tải lên: 16/02/2014, 18:54
Expansion of Operating Limits for Permanent Magnet Motor by Current Vector Control
... EXPANSION OF OPERATING LIMITS FOR PERMANENT MAGNET MOTOR 867 To examine the demagnetization of the permanent magnet due to the d-axis armature reaction, the demagnetizing coefficient C: is ... the saliency of the PM motor[ 6]. As the relative permiability of a permanent magnet is very nearly unity, the magnet space behaves like an air. The surface magnet mo...
Ngày tải lên: 08/03/2014, 22:01
Chapter 14 - Thuc Hien Cac Chuong Trinh Marketing
... cũng như các công việc phải làm trong toàn Công ty. Các Công ty với những chiến lược khac nhau thì cần cac cấu trúc khác nhau. Các công ty nhỏ đang triển khai những sản phẩm mới trong một ngành ... như các hành động sẽ được phối hợp ra sao để đạt được các mục tiêu chiến lược của Công ty. H 14- 1. Tiến trình thực hiện chiến lược marketing Xây dựng một cấu trúc tổ chức hiệu quả Cấu tr...
Ngày tải lên: 31/08/2012, 16:51
Mechanisms and Mechanical Devices Sourcebook - Chapter 14
... capacitor formula because only attractive forces can be generated. Where E is the energy stored, C is the capacitance, and V is the voltage across the capacitor. Surface micromachined comb drives ... polysilicon beam in a surface-micromachined accelerometer moving in response to acceler- ation. The two fixed plates and one moving plate form a unit cell. Sclater Chapter 14 5/3/01 1:44 PM...
Ngày tải lên: 22/10/2012, 14:26
Process technology equipment and systems chapter 14&15
... reactor in coal gasification. • Describe fluid coking. • Chapter 14 ● Reactor Systems 346 Stirred Reactors A common type of reactor is the mixing, or stirred reactor (Figures 14. 3 and 14. 4). ... Coke Recycled Reactor Figure 14. 12 Fluid Coking Chapter 14 ● Reactor Systems 354 Tubular Reactors The design of a tubular reactor (Figure 14. 13) can vary from the simple jack- e...
Ngày tải lên: 23/08/2013, 14:47