Ograniczanie wyników
Czasopisma help
Lata help
Autorzy help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Znaleziono wyników: 56
first rewind previous Strona / 3 next fast forward last
Wyszukiwano:
w słowach kluczowych:  state estimation
help Sortuj według:

help Ogranicz wyniki do:
1
100%
Fundamenta Informaticae
EN In this paper we introduce a state-estimation method that uses a short-term memory to calculate the current state. A common way to solve state estimation problems is to use implementations of the Bayesian algorithm like Kalman filters or particle filters. When implementing a Bayesian filter several [...]
2
80%
Metrology and Measurement Systems
EN This paper presents a novel strategy of particle filtering for state estimation based on Generalized Gaussian distributions (GGDs). The proposed strategy is implemented with the Gaussian particle pilter (GPF), which has been proved to be a powerful approach for state estimation of nonlinear systems [...]
3
80%
Control and Cybernetics
EN The paper is devoted to deriving a novel estimation algorithm for linear dynamic system with unknown inputs when observations contain outliers. The algorithm is derived for arbitrary input signals and does not require a priori statistical information concerning input signals. The filtering problem i[...]
4
70%
Systems Science
EN In this paper, the problem of state estimation in an asynchronous distributed multi-sensor system is considered. In such a system, the state of an object of interest is estimated by a group of local estimators. Each local estimator, based on a Kalman filter, performs fusion of data from its local se[...]
5
70%
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN In this paper, a virtual actuator-based active fault-tolerant control strategy is presented. After a short introduction to Takagi-Sugeno fuzzy systems, it is shown how to design a fault-tolerant control strategy for this particular class of non-linear systems. The key contribution of the proposed ap[...]
6
70%
International Journal of Electronics and Telecommunications
EN The basic problem of tracking manoeuvring moving objects (e.g. aircrafts, ships) lies in unpredictability of object manoeuvres, with respect to the time of occurrence, duration and the type of trajectory. In this paper most representative methods of modelling and state estimation techniques applied [...]
7
70%
Metrology and Measurement Systems
2016 Vol. 23, nr 2 183--192
EN Power system state estimation is a process of real-time online modeling of an electric power system. The estimation is performed with the application of a static model of the system and current measurements of electrical quantities that are encumbered with an error. Usually, a model of the estimated[...]
8
70%
Poznan University of Technology Academic Journals. Electrical Engineering
2019 No. 97 181--190
EN The paper presents a new approach to Hybrid Kalman filtering, composed of Extended Kalman Filter and Unscented Kalman Filter. In known algorithms, the Unscented Kalman Filter algorithm is used as first and the result of this is given as an input to the Extended Kalman Filter. The authors checked mod[...]
9
70%
Archives of Electrical Engineering
2015 Vol. 64, nr 2 237--248
EN An approach to power system state estimation using a particle filter has been proposed in the paper. Two problems have been taken into account during research, namely bad measurements data and a network structure modification with rapid changes of the state variables. For each case the modification [...]
10
70%
Archives of Control Sciences
2017 Vol. 27, no. 4 595--615
EN Offset-free model predictive control (MPC) algorithms for nonlinear state-space process models, with modeling errors and under asymptotically constant external disturbances, is the subject of the paper. The main result of the paper is the presentation of a novel technique based on constant state dis[...]
11
70%
Journal of Automation Mobile Robotics and Intelligent Systems
EN The paper presents a new approach to particle filtering, i.e. Dispersed Particle Filter. This algorithm has been applied to the power system, but it can also be used in other transmission networks. In this approach, the whole network must be divided into smaller parts. As it has been shown, use of D[...]
12
61%
Acta Energetica
2013 nr 1 114--124
PL Estymacja stanu systemu elektroenergetycznego odgrywa istotną rolę we współczesnych systemach komputerowych dyspozycji mocy. Oprócz niezawodności powinna ona posiadać takie cechy, jak: wysoka dokładność wyników, krótki czas realizacji w każdej możliwej sytuacji, tj. winna zapewnić równie korzystne w[...]
EN Power system state estimation plays an essential role in modern computer systems in a dispatcher centre. Apart from reliability, it should have such features as: high accuracy of results, short performance time in each possible situation, i.e. it should ensure equally beneficial results for differen[...]
13
61%
Przegląd Elektrotechniczny
2013 R. 89, nr 5 222-227
PL W artykule przedstawiono metodę estymacji stanów dynamicznych w sieci elektroenergetycznej, wykorzystujący pomiary fazy i amplitudy napięcia i prądu oraz pomiary SCADA z poszczególnych punktów sieci. W algorytmie wykorzystano maszynę wektorów RVM. Ze względu na zbyt duży wymiar danych wejściowych, z[...]
EN Dynamic State Estimation (DSE) techniques have the ability to foresee potential contingencies and security risks. Any improvement in its ability to estimate would definitely go a long way in reducing the security risks in the modern power system. One important factor affecting the quality of estimat[...]
14
61%
Pomiary Automatyka Kontrola
PL W artykule przedstawiono trzy algorytmy estymacji stanu obiektu opisanego dyskretnymi równaniami nieliniowymi. Zaprezentowane algorytmy to Rozszerzony Filtr Kalmana, Deterministycznie Próbkujący Filtr Kalmana oraz Filtr Cząsteczkowy. Skuteczność działania algorytmów zbadano metodą symulacyjną.
EN This paper addresses the problem of state estimation for objects which are described by nonlinear discrete-time equations. Three algorithms are presented: Extended Kalman Filter, Unaccrued Kalman Filter and Particle Filter, the considered algorithms are compared by simulation means.
15
61%
Pomiary Automatyka Kontrola
PL W pracy prezentuje się jednolitą posadowioną geometrycznie metodę projektowania generatorów resztowych statycznie odprzęgniętych od zakłóceń, która prowadzi do sub-optymalnych rozwiązań problemu odpornego dopasowania ich struktury własnej, zakładającego realizację ustalonego zbioru wartości własnych[...]
EN The problem of synthesis of robust state observers for dynamic plants is considered to be an essential point in the design of diagnostic systems for FD1. Intelligible analytical judgement shows that beneficial attributes of such observers can be obtained by appropriately designing the eigen-struclur[...]
16
61%
Przegląd Elektrotechniczny
PL W artykule zaproponowano suboptymalny nieliniowy algorytm estymacji stanu w warunkach zakłóceń. Prezentowana metoda opiera się na teorii filtracji nieliniowej oraz wykorzystuje metodę aproksymacji Gaussowskiej.
EN A new suboptimal non-linear algorithm for state estimation in the presence of interferences is presented. The algorithm was designed with use of the non-linear filtering theory and the Gaussian approximation method. The simulations results in different environment conditions have revealed its high e[...]
17
61%
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The paper deals wit h the problems of designing observers and unknown input observers for discrete-time Lipschitz non-linear systems. In particular, with the use of the Lyapunov method, three different convergence criteria of the observer are developed. Based on the achieved results, three different[...]
18
61%
Systems Science
EN In previous work, a sequential estimator that incorporates constraints was developed. This technique created a parallel implementation of an unconstrained estimator that used a time series of measurements to continually update the estimate and a constrained estimator that at each time step used the [...]
19
61%
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
2013 Nr 32 43--46
PL Praca dotyczy estymacji stanu systemu elektroenergetycznego. Oprócz niezawodności, estymacja stanu powinna posiadać takie cechy, jak: wysoka dokładność wyników, krótki czas realizacji w każdej możliwej sytuacji, tj. winna zapewnić równie korzystne wyniki dla różnych stanów, jak również dla różnych u[...]
EN The paper deals with power system state estimation. Apart from reliability, power system state estimation should have such features as: high accuracy of results, short performance time in each possible situation, i.e. it should ensure equally beneficial results for different states as well as for di[...]
20
61%
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
2013 Nr 33 75--78
PL W artykule przedstawiono układ optymalnej regulacji farm wiatrowych, który zintegrowano z systemem dyspozytorskim WindEx poprzez usługę WebSVC. W wyniku prac powstał „Układ optymalnej regulacji mocy farm wiatrowych w warunkach ograniczonych możliwości przesyłowych sieci elektroenergetycznych”, które[...]
EN The aim of this paper is to present a “A system of optimal wind farm power control in the conditions of limited transmission capabilities of power networks”, which one of two main modules is an state estimator. Featured wind farm control system was integrated with SCADA dispatcher system WindEx usin[...]
first rewind previous Strona / 3 next fast forward last