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Dissertations / Theses on the topic 'Passive harmonic filter'

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Published: 3 June 2025

Last updated: 20 July 2025

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1

Yeung, Henry. "Computer based analysis and design of new passive filter arrangements for industrial applications." Thesis, University of Sunderland, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369861.

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2

Arman, Mahmoud Fayez. "An 'active' passive-filter topology for low power DC/AC inverters." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/6072.

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This thesis presents a new output passive filter for voltage source inverter applications which is based on a shunt connected single tuned filter topology. The proposed circuit has the advantage of tracing harmonic components wherever its location in the frequency spectrum. The change in the harmonic location might be as a result of a change in the inverter operating frequency. Also, the proposed filter achieves harmonic reduction close to the traditional single tuned passive filter. In order to show the superiority of the proposed model, a comparison is introduced with other self tuning harmo

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3

Zubi, Hazem M. "A genetic algorithm approach for three-phase harmonic mitigation filter design." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604881.

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In industry, adjustable speed drives (ASDs) are widely employed in driving AC motors for variable speed applications due to the high performance and high energy efficiency obtained in such systems. However, ASDs have an impact on the power quality and utilisation of AC power feeds by injecting current harmonics and causing resonances, additional losses, and voltage distortion at the point of common coupling. Due to these problems, electric power utilities have established stringent rules and regulations to limit the effects of this distortion. As a result, efficient, reliable, and economical h

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4

Malki, Luai. "Mitigation of Background Harmonic Amplification at PCC Using Active Filtering of STATCOM." Thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223618.

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Shunt compensation devices have been a powerful candidate for expanding the limits of transmission facilities, allowing more active power transport and supporting voltage and overall stability of the network. An example of such devices is the Static Synchronous Compensator (STATCOM) which is based on Voltage Source Converter (VSC) which synthesizes output voltage and current for mainly reactive power compensation. STATCOMs might be accompanied with a Thyristor Switched Capacitor (TSC) or Reactor (TSR) which are controllable shunt devices for extra VARs required, along with passive filters for

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5

Al-Bayaty, Hussein Kamal Anwer. "Novel methods of utilization, elimination, and description of the distortion power in electrical circuits." Thesis, University of Plymouth, 2018. http://hdl.handle.net/10026.1/10646.

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Firstly, this thesis investigates the electrical power harmonics in an attempt to utilize harmonic current and its distortion power in a novel idea to reconvert the distortion power into useful power. This is done, in order to feed different DC or AC loads in single and three-phase power system by using passive or active filters and accordingly, develop a new topology of hybrid active power filter (HAPF). In addition, this circuit can be considered as a power factor corrector (PFC) because it reduces the total harmonic distortion (THD) and improves the power factor (PF). Secondly, this thesis

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6

Ucak, Onur. "Design And Implementation Of A Voltage Source Converter Based Hybrid Active Power Filter." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611095/index.pdf.

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This research work is devoted to the analysis, design and implementation of a shunt connected Hybrid Active Power Filter by the use of a lower rated voltage source PWM converter, and a series connected LC passive filter. In recent years, voltage and current harmonics have become a serious problem both in transmission and distribution systems, due to the widespread usage of non-linear loads such as diode/thyristor rectifiers, electric arc furnaces and motor drives. In order to obtain a better performance than those of the conventional passive filter solutions, active power filters (APF) have be

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7

Nascimento, Rogério Pinto do. "Propostas de procedimentos para projetar filtros harmônicos a partir de um programa de penetração harmônica, incluindo cálculos de desempenho e de suportabilidade." Universidade Federal de Uberlândia, 2007. https://repositorio.ufu.br/handle/123456789/14637.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This work introduces some proposals for the design of harmonic filters from a harmonic penetration computer program. Such procedures are developed by means of optimized techniques, taking in account, among other aspects, the filtering performance, the filter detuning as well as international guides referring to the supportability of the filter components, as far as voltage, current and power are concerned. The work shows the need for designing filters through a harmonic penetration program. Therefore, the filter parameters can be

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8

McCullough, Denis. "Active and passive filters in the control of industrial harmonics." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334582.

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9

Bancal, Sylvain. "Basic design of an HVDC interconnection in Brazil." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187693.

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HVDC technologies are very effective on long distance power transmission but generally raise large interrogations as how to determine an effective configuration. This thesis propose part of an optimization process in order to determine an optimal configuration for an HVDC installation, emphasizing in this report the impact of the conductor selection and of the filter design. The conductor selection, including varying voltages raises concern about the knowledge of the energy cost evolution in order to determine its optimum and a sensitivity analysis is proposed to evaluate the impact of this f

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10

Álvarez, Juan José Pérez [UNESP]. "Filtros harmônicos passivos: otimização e arranjos híbridos." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143862.

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Álvarez, Juan José Pérez. "Filtros harmônicos passivos : otimização e arranjos híbridos /." Ilha Solteira, 2016. http://hdl.handle.net/11449/143862.

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Orientador: Júlio Borges Souza<br>Resumo: Neste trabalho apresenta-se um algoritmo para o dimensionamento de um sistema híbrido de filtragem passivo que considera os filtros ressonantes e os dispositivos eletromagnéticos para mitigação de correntes harmônicas de sequência zero. O objetivo do algoritmo proposto é acrescentar o estudo dos filtros passivos mediante a utilização de métodos de otimização nos modelos matemáticos dos filtros ressonantes e do filtro eletromagnético considerando a interação destes dispositivos com o sistema de distribuição de energia elétrica (SDEE). Os estudos realiza

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12

June-Yown, Lee, and 李俊耀. "Optimal Planning for Passive-Harmonic-Filter Set at High Voltage Level." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/02411516706004141074.

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碩士<br>中原大學<br>電機工程研究所<br>86<br>For improving the power quality, mitigating the damage due to harmonic and to agree with the regulations of harmonic restriction, most of the power consumers with harmonic load install the harmonic filters to reduce the harmonic current to the system and improve the power factor simultaneously. In the broad terms, two categories of harmonic filter namely passive filter and active filter can be used, and these filters can be set at low voltage or high voltage levels. When a harmonic filter with large capacitis required, however, the passive filter set at high volt

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13

Wang, Hung-Lu, and 王宏魯. "Optimal Passive Harmonic Filter Planning in a Power System with Considering Probabilistic Characteristics." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/38528966146377373605.

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博士<br>國立中正大學<br>電機工程所<br>95<br>The harmonic currents, impedance, and voltages in a power system are non-deterministic in nature. If the installation of passive filters is made according to the worst of harmonic current scenario, the results may be inaccurate. In addition, this may cause extra expenses or not satisfy the need of controlling harmonic. Considering the effects of time variations of harmonic current and impedance, this thesis presents a new approach for planning single-tuned harmonic passive filters in a power system with considering probabilistic characteristics. In the proposed m

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14

Liao, Wun-Jhih, and 廖文智. "Passive harmonic filter planning in a power system using cumulant method and immune algorithm." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89810716320977941099.

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碩士<br>中原大學<br>電機工程研究所<br>97<br>Abstract The power quality in the industry distribution system becomes deteriorated due to harmonic pollution. Many researches have been proposed for investigating the passive filter planning to reduce harmonic voltage distortion. The harmonic currents, impedance, and voltage in a power system are non-deterministic in nature. If the installation of passive filetrs is made according to the worst of harmonic current scenario, the results may be inaccurate. In addition, this may cause extra expenses or not satisfy harmonic standard. Considering the effects of time v

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15

Chu, S. Y., and 朱守勇. "Power System Passive Harmonic Filter Planning and Development of Matlab-Based Graphical User Interface." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/73616818151782085590.

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16

Wang, Hung-Lu, and 王宏魯. "Sensitivity Analysis and Genetic Algorithm-Based Passive Harmonic Filter Planning in a Power System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/62703284849686168640.

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碩士<br>國立中正大學<br>電機工程研究所<br>90<br>In recent years, the use of nonlinear loads is significantly increased. The harmonic interference with the power system deteriorates power quality. The harmonic pollution can cause system voltage distortion, and hence operating problems in power systems arise. For example, harmonics may cause overheating of electrical equipment, measurement errors of meters, and malfunctions of protection devices. Therefore, how to mitigate harmonic impacts on a power system is of great concerns. Passive harmonic filter is one of commonly seen methods to control harm

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17

Zeng, Song-Ting, and 曾崧庭. "Three-phase harmonic power flow for multi-grounded four-wires distribution systems and its passive power filter design application." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/yyh2cp.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>The main purpose of this thesis is to develop a three-phase harmonic power flow and its passive power filter design for multi-grounded four-wires distribution systems. Firstly, the network model of three-phase four-wire power distribution system considering the neutral line and grounding characteristics is developed. Based on the circuit decoupling concept and the injection current equivalent principle, the system components are divided into two parts: series impedance and parallel conduction. The series impedance can be used to construct the system bus impeda

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18

Forbes, Travis Michael 1986. "Circuit techniques for programmable broadband radio receivers." Thesis, 2013. http://hdl.handle.net/2152/28712.

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The functionality provided by mobile devices such as cellular phones and tablets continues to increase over the years, with integration of an ever larger number of wireless standards within a given device. In several of these designs, each standard supported by a device requires its own IC receiver to be mounted on the device’s PCB. In multistandard and multimode radios, it is desirable to integrate all receivers onto the same IC as the digital processors for the standards, in order to reduce device cost and size. Ideally all the receivers should also share a single signal chain. Since each st

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19

Lo, Yu-Chi, and 羅于琪. "Placement of Passive Harmonic Filters in Power System by Sensitivity Analysis." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/633f22.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>102<br>Recently, due to the rapid development of power electronics technology, the use of nonlinear loads is significantly increased in factories. Nonlinear loads, such as electric arc furnaces, transformers and uninterruptible power systems, cause harmonics in the systems when they are in operation. Power electronics technology can improve efficiency for energy conversion. As the power electronic conversion devices composed of semiconductor switching element, these devices produce non-sinusoidal waveforms. The harmonic interference with the power system deteriorate

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20

Zhen-LunLiao and 廖振倫. "Investigation of Allocation of Passive Harmonic Filters in a Shipboard Power System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/22139491791548067773.

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碩士<br>國立成功大學<br>系統及船舶機電工程學系碩博士班<br>98<br>Recently, power electronic devices have been gradually used in a shipboard power system. They are typically non-linear loads that usually inject harmonics into the shipboard power system to possibly penetrate the insulation, leading to damage the equipment and affect the human safety in the shipboard electric power system. This thesis is to investigate the improvement of the harmonics in a shipboard power system by applying passive harmonic filters (PHFs) and analyze a proper location for installing the PHFs in order to effectively suppress harmonics. M

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21

Hong, Ci-Jhang, and 洪啟彰. "Design and Verification of Passive Harmonic Filters for Small and Medium-Scale Yachts." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/53237289027894122526.

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碩士<br>國立高雄海洋科技大學<br>輪機工程研究所<br>101<br>There has been a significant increase in the installation and use of power electronic equipment on board ships installations. The operation of this equipment has in many cases significantly degraded the ship electrical power quality to such an extent that measures have to be implemented in order to minimize the resultant adverse effects on the electrical plant and equipment. This paper aims at presenting a methodology for single-tuned filter design particularly for shipboard applications for suppressing harmonics in accordance with marine harmonic standard

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22

Lin, Chin-Hsien, and 林金賢. "Optimal Planning for Large Passive-Harmonic-Filters Set at High Voltage Level Considering the Multiple Loads and Harmonic Levels." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/65158465566031829456.

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碩士<br>中原大學<br>電機工程研究所<br>89<br>For improving the power quality, mitigating the damage due to harmonic and to agree with the regulations of harmonic restriction, most of the power consumers with harmonic load install the harmonic filters to reduce the harmonic current to the system and improve the power factor simultaneously. In the broad terms, two categories of harmonic filter namely passive filter and active filter can be used, and these filters can be set at low voltage or high voltage levels. When a harmonic filter with large capacity is required, however, the passive filter set at high vo

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23

Breedt, Petrus Gerhardus. "The condition monitoring of the passive harmonic filters in rail way DC sub stations." Thesis, 2013. http://hdl.handle.net/10539/12412.

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The condition monitoring of the passive 12th and 24th harmonic filters in the DC sub station employing 12 pulse passive rectification plays the vital role of suppressing generated harmonics. The railway service of South Africa (Transnet) is confronted by the introduction of complex loads the sub stations was never designed for. In recent years the suppression of harmonics has become increasingly important due to penalties incurred from the energy supplier and the influence harmonics has on sensitive equipment supplied from the same grid. The condition monitoring of harmonic filters can thus b

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24

Tsai, Chao-Yuan, and 蔡兆原. "Optimal Placement of Capacitors and Passive Harmonic Filters in Power System by Fuzzy Analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/sn4af3.

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碩士<br>國立虎尾科技大學<br>電機工程研究所<br>103<br>Along with the development of science and technology, many large-scale semiconductor fabs and electronic plants have applied more and more nonlinear equipment to their operations, thus the pollution of nonlinear load on the power system caused by harmonic current and harmonic voltage drop that is getting worse and worse. For the harmonic issues in the power system, there’re definite restrictions that stated in R.O.C. (Taiwan) Power Company Harmonics Control Regulations (IEEE-519). This study is to investigate how to find the optimal location in a power syste

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25

Liao, Ja-shung, and 廖家祥. "Harmonic Mitigation and Analysis of AC Arc Furnace Loads with Using Active and Passive Filters." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/87806002395680063188.

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碩士<br>國立中正大學<br>電機工程所<br>94<br>Arc furnaces used for steel production are a main cause of voltage fluctuations in electrical networks, which may give rise to the flicker effect. Voltage fluctuations, due to ramdom are-length variations during scrap melting. Static-var-compensator(SVC) are installed in plants feeding arc furnaces in order to compensate both voltage fluctuation and voltage distortion. This thesis discuss simulation and analyze harmonic characteristicd generated by a steel firm, that equipped with arc furnace, high-power ac/dc adjustable speed drives cycloconverters and static

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26

Lee, Kune-Da, and 李坤達. "Optimal Design of Large Passive-Harmonic-Filters Set at High Voltage Level Considering the Commercial Specification and Coordination of Internal Protections." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/31794777306121213402.

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碩士<br>中原大學<br>電機工程學系<br>87<br>For improving the power quality, mitigating the damage due to harmonics and satisfying the harmonic criterions of utility, most of customers with harmonic currents usually install the harmonic filters to reduce the harmonic currents flowed into the power system and improve the power factors simultaneously. In the broad terms, there are two categories of harmonic filter namely active harmonic filters and passive harmonic filters. These harmonic filters can be installed in low voltage or high voltage sides of customer distribution system. When the large capacity of

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27

Πάλλης, Ιωάννης. "Μελέτη διείσδυσης υψηλών αρμονικών σε δίκτυο μέσης τάσης". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/2551.

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Στην παρούσα διπλωματική εργασία μελετήθηκαν οι αιτίες, οι επιπτώσεις και η αντιμετώπιση σε προβλήματα που αφορούν διείσδυση ανώτερων αρμονικών σε δίκτυο μέσης τάσης. Μοντελοποιήθηκε και εισήχθη ένα κομμάτι πραγματικού δικτύου μέσης τάσης στο υπολογιστικό πακέτο MATLAB. Ο εξαχθείσες προσομοιώσεις τόσο της εμπέδησης-συχνότητας όσο και της τάσης παρουσία αρμονικών, έδωσαν συμπεράσματα για τη συμπεριφορά του δικτύου. Τέλος εξετάστηκε η συμπεριφορά του παρουσία παθητικών φίλτρων.<br>In the present "Diploma Thesis" the causes,the effects and the treatment of high harmonics penetration in middle vo

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Ασιλιάν, Ορέστης. "Σχεδιασμός παθητικών αρμονικών φίλτρων". Thesis, 2012. http://hdl.handle.net/10889/5946.

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Η ραγδαία ανάπτυξη των ηλεκτρονικών ισχύος τα τελευταία χρόνια και η χρήση τους σε μια ποικιλία βιομηχανικών εφαρμογών οδήγησε στο πρόβλημα των ανώτερων αρμονικών. Η ύπαρξη ανώτερων αρμονικών επιφέρει πολλά προβλήματα στα συστήματα ηλεκτρικής ενέργειας και στα στοιχεία που τα αποτελούν. Για το λόγο αυτό, τοποθετούνται παθητικά φίλτρα που σκοπό έχουν να μειώσουν έως και να εξαλείψουν τις συνέπειες των αρμονικών. Ο σχεδιασμός των παθητικών αρμονικών φίλτρων μπορεί να γίνει με βάση διάφορα κριτήρια. Στην παρούσα διπλωματική εργασία, γίνεται σχεδιασμός παθητικών αρμονικών φίλτρων με τη βοήθεια των

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Μέντη, Ανθούλα. "Αρμονικές φωτοβολταϊκού συστήματος συνδεδεμένου στο δίκτυο : μια νέα μέθοδος ανάλυσης της ισχύος παρουσία αρμονικών". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/2095.

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Στην παρούσα διατριβή αναπτύσσονται κατάλληλα μοντέλα για τις επιμέρους μονάδες φωτοβολταϊκού (ΦΒ) συστήματος συνδεδεμένου στο δίκτυο. Στόχος είναι να αντιμετωπιστούν ταυτόχρονα και αποτελεσματικά οι ιδιαιτερότητές του, που οφείλονται στη συμπεριφορά των διακοπτικών στοιχείων και στα μη γραμμικά χαρακτηριστικά της ΦΒ γεννήτριας και του μετασχηματιστή απομόνωσης. Αναπτύσσονται μέθοδοι που αυξάνουν την ταχύτητα εξομοίωσης. Αυτό επιτυγχάνεται με χρήση αυξητικών μοντέλων για τα μη γραμμικά στοιχεία και αποτελεσματικών αλγορίθμων για την αντιμετώπιση της μεταβλητής τοπολογίας. Τα μοντέλα που παρουσ

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