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In the paper a multiple use of the fractional-order differential calculus theory in the model predictive control is proposed. First, the principle of the integer-order linear predictive control and theoretical foundations of the fractional-order differential calculus are reminded. Using the presented theoretical foundations attention is focused further on the possibility of developing the fractional-order...
The paper proposes a computationally efficient finite state model based current control of a three-level neutral point clamped (NPC) five-phase voltage source inverter. The space vector model of a five-phase voltage source inverter (VSI) yields 243 space vectors, with 240 active and three zero vectors. The presented technique utilizes a modified switching algorithm to reduce the computation time while...
We focus on the development of a Lyapunov-based economic model predictive control (LEMPC) method for nonlinear singularly perturbed systems in standard form arising naturally in the modeling of two-time-scale chemical processes. A composite control structure is proposed in which, a “fast” Lyapunov-based model predictive controller (LMPC) using a quadratic cost function which penalizes the deviation...
In this paper, an efficient method is proposed for short-time generation output prediction of PV systems. The prediction of time-series of PV generation output is too complicated to handle. The proposed method focuses on the improvement of the prediction model accuracy with a hybrid intelligent system. It consists of the precondition of input data and the predictor of multi-step ahead PV generation...
The paper presents model based current control of a six-phase voltage source inverter considering a finite set of control actions. The space vector model of a six-phase voltage source inverter (VSI) yields 64 vectors, with 60 active and four zero vectors. The presented technique utilizes reduced number of switching actions to track the reference current. Only 13 space vectors are utilized for the...
The problem addressed is that of high frequency (HF) single site location (SSL) using a linear array, where the signal of interest propagates beyond the line of sight via the sky-wave mode. The paper proposes a new geolocation method that exploits multipath to resolve the “coning” ambiguity in a linear array. For the first time, this opens up the possibility to perform meaningful HF-SSL using a linear...
This paper deals with model predictive control (MPC) algorithm applied to speed control of permanent magnet synchronous machine (PMSM). Key aspects related to optimization of linear model PMSM are: the use of Field Oriented Control scheme (FOC) to employ linearized model of PMSM in dq-coordinates and elimination of cascade control loop. Speed and current controllers are combined together. In this...
Motion porfile tracking control forms an integral part of most industrial applications ranging from manufacturing, where planned motion robots perform assebly tasks, medical applications for position patients and moving scanners across patient bodies and unmanned vehicle applications such as automated parking. In all these applications, the challanges are keeping the tracking error as low as possible,...
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