wireless speed control of ac motor pdf
Báo cáo toán học: " General decay for a wave equation of Kirchhoff type with a boundary control of memory type" pdf
Ngày tải lên: 20/06/2014, 21:20
Báo cáo y học: " Genetic control of hippocampal neurogenesis" pdf
Ngày tải lên: 14/08/2014, 16:21
DC bus control of variable speed wind turbine using a buck boost converter
... of the wind speed, the control of the buck- boost converter perturbs periodically the operating point of the wind turbine. By acquiring the output voltage and current of PMSG, the control used ... variable -speed control can adjust the speed of the turbine as the wind speed changes, so as to operate at the peak of the Cp curve. This will maximize the power generated for a particular wind speed, ... reach the operating point (k+1). Search rules of the various cases of operation are summarized in the table I. Fi g.4. Operation modes of buck boost converter 2 Unlike constant -speed control, ...
Ngày tải lên: 03/01/2014, 19:15
Direct torque control of brushless DC motor with non sinusoidal back EMF
Ngày tải lên: 03/01/2014, 19:44
A park like transformation for the study and the control of a nonsinusoidal brushless DC motor
Ngày tải lên: 03/01/2014, 19:44
Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
... shapes require very fast controllers in particular at high speed. Classical bandwidth of the controller (such as proportional– integral) does not allow tracking all of the reference current ... trajectory of stator flux linkage in the stationary αβ – plane. Direct Torque and Indirect Flux Control of Brushless DC Motor with Non-sinusoidal Back-EMF without position sensor Abstract: ... efficiency control strategies of an induction motor, ” IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820–827, Sep./Oct. 1986. [2] M. Depenbrock, “Direct self -control of inverter-fed induction machine,”...
Ngày tải lên: 03/01/2014, 19:45
Direct torque and indirect flux control of brushless DC motor
... analysis and design of electrical machines, variable -speed drives for traction and propulsion applications, fault diagnosis of electric machinery, and sensorless variable -speed drives. He has supervised ... I. J. Ha and C. I. Kang, “Explicit characterization of all feedback lineariz- ing controllers for a general type of brushless dc motor, ” IEEE Trans. Autom. Control, vol. 39, no. 3, pp. 673–677, ... great deal of study has been devoted to the current and torque control methods employed for BLDC motor drives. One of the most popular approaches is a generalized harmonic injection approach by numerical optimization...
Ngày tải lên: 03/01/2014, 19:46
Direct torque control of four switch brushless DC motor with non sinusoidal back EMF
... characteristics. Furthermore, to eliminate the low-frequency torque oscillations caused by the non-ideal trapezoidal shape of the actual back-EMF waveform of the BLDC motor, pre-stored back-EMF ... characteristics. Furthermore, to eliminate the low-frequency torque oscillations caused by the non-ideal trapezoidal shape of the actual back-EMF waveform of the BLDC motor, a pre-stored back-EMF ... electromagnetic torque result is well in accordance with the simulation result obtained in Fig. 8. Since only the torque is controlled without speed control, the time range of control system under transient...
Ngày tải lên: 03/01/2014, 19:46
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... Furthermore, the control of AC actuators was a difficult task at that time. Today, AC motors are also widely used as servo-motors, employing modern methods of phase- voltage control and frequency control ... DC Motor / Tachometer Closed-Loop Speed Control System 8 In the early days of analog control, servo-actuators (actuators that automatically use response signals from a process in feedback ... Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 21 Table 1. Specifications of the Honeywell 22VM51-020-5 DC Motor with Tachometer Motor Characteristics Units Values...
Ngày tải lên: 25/01/2014, 13:20
Tài liệu CONTROL OF ORGANIC COMPOUND EMISSIONS FROM CHEMICAL, COATINGS AND RUBBER PRODUCTS MANUFACTURING pdf
... either of the following occur: (a) All of the control device is replaced. (b) The cost of repair of the control device or the cost of replacement of part of the control device exceeds 50% of the ... all operations at phar- maceutical manufacturing facilities involved in the manufacture of pharmaceutical products by chemical synthesis, with the exception of any reactor, distillation unit, ... operator of a synthesized pharmaceutical manufacturing facility shall: 1. Equip each vent from reactors, distillation operations, crys- tallizers, centrifuges, or vacuum dryers with surface condensers or...
Ngày tải lên: 14/02/2014, 08:20
Tài liệu Báo cáo khoa học: Metabolic control of mitochondrial properties by adenine nucleotide translocator determines palmitoyl-CoA effects Implications for a mechanism linking obesity and type 2 diabetes pdf
... Control Analysis. To assess the control of fluxes and intermediates, we took a modular approach (Fig. 5). Metabolic control of fluxes Control coefficients of the six modules of oxidative phosphorylation ... and accumulation of biologically active molecules [e.g. long-chain acyl-CoAs (LCACs), ceramide, diacylglyc- erol] could adversely affect cellular function by direct effects on a variety of enzymes ... the sites of action of palmitoyl-CoA, the system of oxidative phosphorylation was conceptually subdivided into a small number of functional modules interacting via a limited number of intermediates....
Ngày tải lên: 19/02/2014, 05:20
Tài liệu Một số thuốc mới chống rối loạn lipid máu (New drugs for the control of dyslipidemia) pdf
... trọng cũng nh khi dùng riêng statin. Acid béo không no một nối đôi Không phải là thuốc mới nhng còn ít ngời Việt Nam biết dùng. Còn gọi là acid oleic, acid omega 9 có nhiều trong dầu olive, ... làm tăng mạnh HDL - C. Dùng riêng, rosuvastatin rất dễ dung nạp, kể cả khi phối hợp với fenofibrat, niacin, cholesteramin, dáng dấp an toàn tơng tự các statin đang lu hành. * Pitavastatin Uống ... ruột của cholesterol do thức ăn mang vào và cả cholesterol nội sinh từ acid mật, cắt đứt "chu kú ruét - gan" cña acid mËt. Ezetimibe hÊp thụ nhanh sau khi uống, qua phản ứng liên hợp...
Ngày tải lên: 26/02/2014, 03:20
Analysis of strategy of Toyota Motor Corporation operating in Vietnam pdf
... Motor Manufacturing, Inc with General Motor in USA in 1983. Part 2: Business strategies of the TMC in Vietnam 1. Toyota Motor Viet Nam (TMV) Company name: Toyota Motor Company Vietnam Date of ... over 2009. In addition, sales of Toyota genuine accessory reached nearly 550 billion dong, up 30.6% over 2009. According to the report of researching customer satisfaction when buying cars in Vietnam ... fairly quiet place. The numbers as 2 months of 2008, Vietnam population nearly $ 400 million spent entered car, motorcycle sales are a member of the Association of Vietnam Automobile Manufacturers...
Ngày tải lên: 11/03/2014, 02:20