example fuzzy logic control of a servomechanism

... available capacity in the network and increase the number of retransmissions Because our purpose was to make a fair comparison and because the absence of a DAB unfairly increases packet delays compared ... saving of the FLC power-aware ARQ scheme compared to that of the default ARQ and the adaptive ARQ [34] schemes Channel parameter, a I-frame packets Figure 16: Contribution of I-, P-, and B-frame ... 1000 24 500 Channel parameter, a B-frame packets P-frame packets Channel parameter, a I-frame packets Infinite ARQ with DAB Adaptive ARQ Fuzzy with DAB & power limit Fuzzy with DAB & no power...

Ngày tải lên: 21/06/2014, 22:20

... sources) are accessible Gate arrays are available for 14 Neural and Fuzzy Logic Control of Drives and Power Systems both single-layer and multilayer metallisation To design an ASIC using a gate array, ... set of three scalar phase quantities A = A – A – A a b c  d  A = A – A  q b c   Aa + Ab + Ac = A =  a  A =  b  A =  c  3.5 3.5.1 (3.6) (3.7) A d – ⋅ Ad + ⋅ Aq 3 – ⋅ Ad – ⋅ Aq ... programmable gate arrays (FPGAs) Field programmable gate arrays (FPGAs) are a special class of ASICs which differ from mask-programmed gate arrays in that their programming is done by end-users at...

Ngày tải lên: 18/04/2014, 12:29

... reliability of automated processes, fault-tolerant control has been proposed and studied as illustrated in [54] and [55] As a passive fault-tolerant approach, backstepping control has been applied ... et al [15] and Perez and Donaire [16] The major drawback of Kalman filter is that the kinematic equations must be linearized about a set of yaw angles, typically 36 operating points in steps of ... degrees of freedom that control the approximation accuracy of a FLS are: number of inputs, number of rules, and number of fuzzy sets for each input variable Although increasing the number of fuzzy...

Ngày tải lên: 09/09/2015, 10:21

... Redfern, Colin Campell, The Matlab•5Handbook, Springer [7] Satish Maram, Hierrachical Fuzzy Control of the UPFC and SVC located in AEP’s Inez Area, Master of Sciences in Electrical Engineering, ... power Pbase (VA): công suất định mức - Reference voltage Vref (pu): điện áp đặt - Time constant of voltage measurement system Tm (s): số thời gian hệ thống đo điện áp - Average time delay due ... xuất Khoa học Kỹ thuật, Hà Nội, 2001 [4] Arnim Herbig, On load Flow Control in Electrical Power Systems, Stockholm, 2000 [5] Carson W Taylor, Power System Voltage Stability, 1994 [6] Darren Redfern,...

Ngày tải lên: 28/12/2015, 19:03

... Mamdani fuzzy logic system by Mamdani and Assilian [50], and applied to control a steam engine Based on the framework of Mamdani fuzzy control system, a fuzzy controller [73] was designed to control ... alternatives are evaluated by comparing the aggregation of hierarchical criteria and sub-criteria of alternatives The linguistic weighted average was also applied for evaluating locations of international ... choice of aggregation operator, and thus fuzzy aggregation operator is an important research topic in the theory of fuzzy aggregation Hence, it is necessary to investigate fuzzy aggregation operator...

Ngày tải lên: 09/09/2015, 18:49

... Fuzzy control of an overhead crane performance comparison with classic control , Control Engineering Practice, Vol.3, No.12, 1995, pp.1687-1696 J Yi, Naoyoshi Yubazaki, and Kaoru Hirota, “Anti-swing ... fuzzification A/ D Fig A framework of a Fuzzy Control System References (can be available upon requirement) • • • DE-6 Gourp 672 (Spring 2004) report: Control of the Crane Project 2004 A Benhidjeb and G.L ... Proposal for Control Theory – Master of Science in Information Technology Fall 2004, Control Laboratory, Aalborg University Esbjerg • • Modeling and Matlab/Simulink simulation Experimental tests...

Ngày tải lên: 28/12/2015, 14:05

... [19] Hasnain, S.M., Alawaji, S.H., A1 -Ibrahim, A and Smiai, M.S (1999), Application of Thermal Energy Storage in Saudi Arabia International Journal of Energy Research, vol 23, pp 117-124 [20] Zaheer-uddin, ... department of Mechanical Engineering and Materials Science at Washington University in St Louis, MO, USA He is a Fellow of ASME, AIAA, IEEE, and SAE E-mail address: rka@wustl.edu Huijun Gao received ... was created to simulate the temperature of the exterior wall of the room This temperature curve simulated the exterior surface and was assumed to be at a constant value of 320K A 3-D Cartesian...

Ngày tải lên: 05/09/2013, 16:11

... self-inductance and the mutualinductance of the stator coils Since we assume a constant airgap and no saturation, L, and M, are constant ara arb , and arc the rotor fluxes induced in the stator phases are ... are surface mounted and have the same permeability as air As a result, the armature reaction is negligible The magnetic circuit has an important air part so that the effects of the saturation in ... linearization control to nonlinear systems [111, Indeed, the nonlinear feedback linearization scheme is based on a coordinate transformation and an input transformation as well But the main advantage...

Ngày tải lên: 03/01/2014, 19:44

... 1, January 1991, pp 62-72 [2] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Dead Beat Control of threePhase PWM Inverter", IEEE Transactions on Power Electronics, Vol 5, No 1, January ... that it does not affect the output voltage References [1] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Digital Control of three-Phase Inverter with LC Filter", IEEE Transactions on Power ... c controllable dc link volta as indica in the ri age ated ight hand sub b diagram d Figure capacitor v voltage of the output filt with unbalanced load and controlled DC lin ter d o nk vo oltage...

Ngày tải lên: 19/01/2014, 02:20

... Ferrata 1, 27100 Pavia, Italy 2ARTS Lab, Scuola Superiore Sant’Anna, V.le Piaggio 34, 56025 Pontedera (PI), Italy 3EUCENTRE Foundation, Via Ferrata 1, 27100 Pavia, Italy Page 12 of 13 Authors’ contributions ... control method had been firstly tested onto a virtual-reality model of a 15 DoFs hand [40] Simulations of hand movement were performed employing a real human hand PCs matrix available from Santello ... signal As a matter of fact, increasing the number of DoFs (i e dexterity) means either that the system should take care of carrying out the grasp with some level of automatism, as in the SAMS...

Ngày tải lên: 19/06/2014, 08:20

... For example, Ajay Kapur has designed a robotic drummer that automatically plays along with real human performers, such as sitar players [4] Similarly, researchers at the Georgia Institute of Technology ... Force–feedback interaction with a neural oscillator model: for shared human–robot control of a virtual percussion instrument Edgar Berdahl∗ (edgar.berdahl@imag.fr), Claude Cadoz (claude.cadoz@imag.fr) and ... force–feedback interaction A linear-only version of the mechanical analog model was proposed earlier by Claude Cadoz and Daniela Favaretto They presented an installation documenting the study at the...

Ngày tải lên: 21/06/2014, 17:20

... protein & RNA Examples of interacting virusa PFV, HIV-1 PFV Tas and HIV-1 Tat act as RNA silencing suppressors that combat the antiviral effect of small RNA pathway Also miRNAs may be encoded ... recapitulate IRES activity A possible caveat is that the transfected RNAs may fail to interact with necessary IRES-transacting factors (ITAFs) in the nucleus An alternative approach to measure ... translation of PCE-containing mRNAs [46] (Table 2) RHA is a multifunctional DEIH box helicase and RNA binding protein, and deregulation of RHA has been associated with various cancers and autoimmune...

Ngày tải lên: 13/08/2014, 05:21

... work of all the individuals stable platform for mobile manipulation there, especially Anthony del Balso, Rich Legrand, We have also described a new approach for a mod- Jim Slater and John Slater ... inverses of Jacobians in the past for manipulators because the meaning of minimizing quantities which have a combination of linear and angular units is not well defined The two proposed generalized ... (West and Asada 1994) All of these mechanisms, except for some types with ball wheels, have discontinuous wheel contact points which are a great source of vibration; primarily because of the changing...

Ngày tải lên: 26/10/2014, 14:32

... Raja Ismail, M .A Ahmad, M.S Ramli, F.R.M Rashidi, Nonlinear Dynamic Modeling and Analysis of a 3-D Overhead Gantry Crane System with Payload Variation, ems, pp.350354, 2009 Third UKSim European ...  sa   a  Caa      (15) where    τ a  M am q rm   M aa q   Cam q rm    Caa q   G a (q) We can be expressed τ m and τ a as in term of a known matrix ω m , ω a and ... proposed a sliding-mode anti-swing control for overhead cranes to realize an antiswing trajectory control with high-speed load hoisting A feedback linearization control of container cranes with varying...

Ngày tải lên: 16/08/2015, 15:47

... North Carolina, USA, 2005 B Yin, R Oruganti, S K Panda, and A K S Bhat, “Performance comparison of voltage mode control and current mode control of a three-phase PWM Rectifier based on a dual SISO ... so that linear control can be applied An optimal linear quadratic regulator with integral action (LQI regulator) [21] and a pole placement controller [20] have been applied to a PWM 24 Chapter ... phase loads Voltage imbalances due to imbalances in phase loads can be particularly severe if large single phase loads, such as arc furnaces are used [6-7]  Asymmetrical winding of transformers which...

Ngày tải lên: 11/09/2015, 16:04

... reach arms can offer a large workspace and fast response However, correction of small end-point errors requires movement of several manipulator actuators Thus, each actuator has to be capable of ... (similar to that of the Macro manipulator), small tracking and steady state errors (similar to that of the Mini manipulator) Thus, the combined system has taken full advantage of the Macro and ... appropriate controller design, offers a possible solution to a wide range of applications that require fast, and precise manipulation over a large workspace [2] There are several advantages offered...

Ngày tải lên: 03/10/2015, 21:56

... reach arms can offer a large workspace and fast response However, correction of small end-point errors requires movement of several manipulator actuators Thus, each actuator has to be capable of ... (similar to that of the Macro manipulator), small tracking and steady state errors (similar to that of the Mini manipulator) Thus, the combined system has taken full advantage of the Macro and ... appropriate controller design, offers a possible solution to a wide range of applications that require fast, and precise manipulation over a large workspace [2] There are several advantages offered...

Ngày tải lên: 04/10/2015, 07:58

... Cartesian space to joint space, giving instructions that the actuators require The advantage of planning in Cartesian space is that path planning is on parameters with resultant of motions of ... hardware, (2) walking control and (3) artificial intelligence CHAPTER 2: LITERATURE REVIEW 2.1 Mechanical Design and Hardware In the area of mechanical design, one of the important areas is ... the sagittal plane of the lower body of a typical biped, with three rotational joints at each leg CHAPTER 5: WALKING CONTROL 37 Fig 5.1 Sagittal plane of the lower body of a typical biped As shown...

Ngày tải lên: 04/10/2015, 10:25

... repetitive and hazardous tasks can be dated back to the era of ancient Greek and Egyptian with their automata More recently, Leonardo da Vinci, a talented and famous Italian artist and engineer ... for example, aluminum alloy[41], sheet metal [7] and magnesium alloy [4] Being light, strong and easy to fabricate are a few features that make aluminum alloy the favorite material in many humanoid ... rather than in industrial factories as we saw in later half of last century It seems that making a humanoid robot able to walk stably is not a too difficult task nowadays Presently, most humanoid...

Ngày tải lên: 04/10/2015, 10:25

... equations as the human arm One advantage of this approach is that it is relatively easy to design an exoskeleton that can track the entire workspace of the human arm Apart from the difficulty of wearing ... user a full information for the hardware and software interface The humanoid robot weighs 6kg and stands 48cm tall It has a total of 20 Degree of Freedom (DOF) - DOF each leg and DOF each arm ... initialization This alignment slot and the jig has the clearance of ± 0.5mm Attachment Point Attachment points are important to enable accurate tracking of the joint rotation of the human operator...

Ngày tải lên: 04/10/2015, 10:25