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This paper suggests another approach to eigenstructure assignment in a polynomial matrices framework. In particular, the design of eigenstructure assignment is performed without selecting initial eigenvalues. The eigenspaces of the system are handled in polynomial matrices format, where the closed-loop transfer function of the system is expressed as a coprime factorisation. The controller structure...
This paper presents recent research results for feedback control design of motion systems. Two model-free approaches are investigated, that exploit the ease of experimentation which is typical for motion systems. One approach is data-based design of a linear feedback controller which realizes desired closed-loop sensitivity and complementary sensitivity transfer functions. These transfer functions...
The vibration transmitted through the suspension of a car is the dominant source of structurally-generated interior noise at low frequencies. With the addition of actuators between the suspension attachment points and the car frame, we propose the design of a feedback controller for an active control of the vibrations to reduce cabin noise. A model-based controller design requires the identification...
In this paper an artificial neural net (ANN) is suggested for implementation as a reference commutation signal generator for speed control of permanent magnet brushless DC motor in X-PC target: domain in overloaded condition. The ANN is trained in the continuous time and then it is transformed to discrete time. The reason for this transformation is that the X-PC target accepts only discrete models...
Manual design of feedback-controllers based on frequency-domain data is often used in industry to design low-order SISO controllers based on experimental data. Such design approaches are often either based on a data representation in the pole-zero plane, i.e. root-locus approaches, or a representation of the open-loop frequency response function (FRF), i.e. shaping of the sensitivity function. Both...
This paper proposes a novel iterative tuning algorithm for achieving velocity control of a two-mass torsional motor system with uncertain parameters. The command generator tracking (CGT) theory is used to establish a direct relationship between the physical model parameters of the system and the feedforward parameters of a special 2DOF controller. This relationship enables the controller to be tuned...
Modern aircraft include a variety of automatic control systems that aid the flight in navigation, flight management, and to augmenting the stability characteristics of airplane. In order to reduce cost and design cycling time and improve performance, Liu proposed closed-loop combination approaches in 2001. In this paper, we discuss the method again and apply the close-loop combination technique to...
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