Advances in Steel Structures - part 53 doc

... for PI 2 D and PID controllers with perfect cancellation. 4 Will-be-set-by -IN- TECH and complexity. In particular, the Variable Integral PI (VIPI), provides a control action equal to u VIPI ( t ) = k p ⎧ ⎪ ⎨ ⎪ ⎩ ( b ... motion and of automatically steered bodies in general. In particular, Minorski was the first to introduce three-term controllers with Proportional-Integral-Derivative (...

Ngày tải lên: 19/06/2014, 12:20

... -1 2 -8 -4 0 4 8 12 time[100ms/div] tracking error[μm] -1 5 -1 0 -5 0 5 10 15 velocity[mm/s], force input[N] ①，②，③ ④ ⑤ ⑥ ⑦ -2 0 -1 5 -1 0 -5 0 5 10 15 20 time[100ms/div] velocity[mm/s] -8 -6 -4 -2 0 2 4 6 8 force ... control input (0N→32N→0N -3 2N→0N -3 2N→0N→32N→0N). Advances in PID Control 152 In the result using the conventiona...

Ngày tải lên: 19/06/2014, 12:20

... k D I -0 .852 -1 .724 -0 .001 II -0 .579 -0 .950 -0 .013 III -0 .971 -1 .900 -0 .007 Table 2. Conventional PID parameters. 6. Conclusion Most of real-world control problems refer to multi-objective ... Decreasing the frequency deviations due to fast changes in output power of wind turbines, and limiting tie-lines power interchanges in an acceptable rang...

Ngày tải lên: 19/06/2014, 12:20

... 2.4 [min]) is the deadtime. The PID parameters (the proportional gain k p , the integral gain k i , and the derivative gain k d ) can be determined by the well-known tuning method. The inherent ... bilinear system derived in Equation 1. The linear system is an imaginary system, but it does represent it closely enough for some particular purpose involved in our analysis. Certainly the...

Ngày tải lên: 19/06/2014, 12:20

... Journal, V6, N3, PP17 1-1 76, India 1989 [3] J. Tang, “PID controller using the TMS320C31 DSK with on-line parameter adjustment for real-time DC motor speed and position control”, IEEE International ... FPGA-based single stage photovoltaic energy conversion system”, Proceedings of IEEE Asia Pacific Conference on Circuits and Systems, pp 74 5-7 48, Taiwan, Dec. 2004. [8] Bouzid Aliane...

Ngày tải lên: 19/06/2014, 12:20

... (May 1975), pp. 39 2-3 97 , ISSN 001 8-9 26X 4 Will-be-set-by -IN- TECH quantity inside the brackets. Thus the medium fluctuates inhomogeneously in the z direction and homogeneously in the r direction. ... z    M μν (z) M μν (0)=M in μν (0), (9) Fig. 3. Model of wave propagation in an inhomogeneous random medium. 32 Advances in Satellite Communications 2 Will-be-set-by -I...

Ngày tải lên: 19/06/2014, 19:20

... obtain the required gain and cover the indicated range, it is required around 15 beams, which can be obtained by integrating the beamforming networks with switches in the design as presented in ... thickness are used to get low losses. Such a kind of feeding network allows keeping a trade-off between the simplicity of exciting the radiating elements using printed circuits and the loss...

Ngày tải lên: 19/06/2014, 19:20

... Symbol Combining (SC), and b) Full Spectrum Combining (FSC). The SC architecture can be divided into two more sub-classes which work on a phase- recovery basis. The complex symbol combining (CSC) ... solution includes a FPGA Xilinx Virtex4-SX55 with four 12-bit analog inputs at Advances in Satellite Communications 190 a b Fig. 25. a) Block diagram of the A3TB, and b) BenADC – V...

Ngày tải lên: 19/06/2014, 19:20

... of the linear natural frequency -0 .8 -0 .6 -0 .4 -0 .2 0 0.2 0.4 0.6 0.8 -1 -0 .8 -0 .6 -0 .4 -0 .2 0 0.2 0.4 0.6 0.8 1 displacement velocity -0 .15 -0 .1 -0 .05 0 0.05 0.1 -0 .08 -0 .06 -0 .04 -0 .02 0 0.02 0.04 0.06 0.08 displacement velocity ... surface -0 .05 -0 .04 -0 .03 -0 .02 -0 .01 0 0.01 0.02 0.03 0.04 0.05 -1 -0...

Ngày tải lên: 19/06/2014, 19:20

... circulates in the steel core so that the voltage (V2) is induced 104 Recent Advances in Vibrations Analysis Probabilistic Vibration Models in the Diagnosis of Power Transformers 3 in the second winding. ... and oil circulating pumps for the cooling function. • Bushings as an insulating structure, for connection of windings to the outside. • Oil temperature indicators. • Oil Level...

Ngày tải lên: 19/06/2014, 19:20