The demand for energy is increasing tremendously with modernization of the technology and requires new sources of renewable energy. The triboelectric nanogenerators (TENG) are capable of harvesting ambient energy and converting it into electricity with the process of triboelectrification and electrostatic-induction. TENG can convert mechanical energy available in the form of vibrations, rotation, wind and human motions etc., into electrical energy there by developing a great scope for scavenging large scale energy. In this review paper, we have discussed various modes of operation of TENG along with the various factors contributing towards its efficiency and applications in wearable electronics.
{"title":"Triboelectric nanogenerators (TENG): Factors affecting its efficiency and applications","authors":"Deepak Anand, Ashish Singh Sambyal, R. Vaid","doi":"10.2298/fuee2102157a","DOIUrl":"https://doi.org/10.2298/fuee2102157a","url":null,"abstract":"The demand for energy is increasing tremendously with modernization of the\u0000 technology and requires new sources of renewable energy. The triboelectric\u0000 nanogenerators (TENG) are capable of harvesting ambient energy and\u0000 converting it into electricity with the process of triboelectrification and\u0000 electrostatic-induction. TENG can convert mechanical energy available in the\u0000 form of vibrations, rotation, wind and human motions etc., into electrical\u0000 energy there by developing a great scope for scavenging large scale energy.\u0000 In this review paper, we have discussed various modes of operation of TENG\u0000 along with the various factors contributing towards its efficiency and\u0000 applications in wearable electronics.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"48 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86484930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Storage is an important domain of the energy sector, with its traditional, classical solutions for smaller and larger amounts of energy. Energy storage has become of higher importance in relation with the development of alternative energy sources, leading to the development of new technologies. The energy efficiency of the storage means is an important parameter, being often not considered in the conception and design of the applications. For the evaluation of the energetic performance of a storage device, a well-adapted tool has been proposed, namely ?The Theory of Ragone Plots?. This tool sets in evidence in what way the effectively recoverable energy amount of a device is depending on the power level of the charge/discharge process. Further, the taking into account of the power needed for the auxiliary equipment of a storage system like the circulation pumps of a flow battery, the vacuum pumps of a flywheel or the forced cooling of a battery can lead to a globally negative value of the efficiency.
{"title":"On the efficiency of energy storage systems - the influence of the exchanged power and the penalty of the auxiliaries","authors":"A. Rufer","doi":"10.2298/fuee2102173r","DOIUrl":"https://doi.org/10.2298/fuee2102173r","url":null,"abstract":"Storage is an important domain of the energy sector, with its traditional,\u0000 classical solutions for smaller and larger amounts of energy. Energy storage\u0000 has become of higher importance in relation with the development of\u0000 alternative energy sources, leading to the development of new technologies.\u0000 The energy efficiency of the storage means is an important parameter, being\u0000 often not considered in the conception and design of the applications. For\u0000 the evaluation of the energetic performance of a storage device, a\u0000 well-adapted tool has been proposed, namely ?The Theory of Ragone Plots?.\u0000 This tool sets in evidence in what way the effectively recoverable energy\u0000 amount of a device is depending on the power level of the charge/discharge\u0000 process. Further, the taking into account of the power needed for the\u0000 auxiliary equipment of a storage system like the circulation pumps of a flow\u0000 battery, the vacuum pumps of a flywheel or the forced cooling of a battery\u0000 can lead to a globally negative value of the efficiency.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"14 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85195047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A combination of lowpass and dual band bandpass filter with improved selectivity is presented in this manuscript. Two circular split ring resonators which are connected at the upper side, provide a lowpass filter characteristics. In order to achieve combined lowpass with dual passband response two L-shape stubs are incorporated into the lowpass filter structure. The parametric analysis of the proposed filter has been carried out using CST microwave studio. The numerical result shows a 3-dB cutoff frequency for lowpass at 1.22 GHz, first and second passband resonant frequencies are 2.44 GHz and 3.7 GHz respectively. The proposed filter is compact and overall size of the proposed filter is 32.9 mm?15mm.
本文提出了一种低通和双带带通滤波器的组合，具有更好的选择性。两个圆形分环谐振器连接在上部，提供低通滤波器特性。为了实现具有双通带响应的组合低通，在低通滤波器结构中加入了两个l型存根。利用CST微波工作室对所提出的滤波器进行了参数分析。计算结果表明，在1.22 GHz时，低通的截止频率为3db，第一和第二通的谐振频率分别为2.44 GHz和3.7 GHz。该过滤器结构紧凑，总尺寸为32.9 mm - 15mm。
{"title":"A compact lowpass/dual-band bandpass filter for microwave application","authors":"Priyanshu Sadwal, A. Bage","doi":"10.2298/fuee2102281s","DOIUrl":"https://doi.org/10.2298/fuee2102281s","url":null,"abstract":"A combination of lowpass and dual band bandpass filter with improved\u0000 selectivity is presented in this manuscript. Two circular split ring\u0000 resonators which are connected at the upper side, provide a lowpass filter\u0000 characteristics. In order to achieve combined lowpass with dual passband\u0000 response two L-shape stubs are incorporated into the lowpass filter\u0000 structure. The parametric analysis of the proposed filter has been carried\u0000 out using CST microwave studio. The numerical result shows a 3-dB cutoff\u0000 frequency for lowpass at 1.22 GHz, first and second passband resonant\u0000 frequencies are 2.44 GHz and 3.7 GHz respectively. The proposed filter is\u0000 compact and overall size of the proposed filter is 32.9 mm?15mm.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"7 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87086593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reduction in leakage current has become a significant concern in nanotechnology-based low-power, low-voltage, and high-performance VLSI applications. This research article discusses a new low-power circuit design the approach of FORTRAN (FORced stack sleep TRANsistor), which decreases the leakage power efficiency in the CMOS-based circuit outline in VLSI domain. FORTRAN approach reduces leakage current in both active as well as standby modes of operation. Furthermore, it is not time intensive when the circuit goes from active mode to standby mode and vice-versa. To validate the proposed design approach, experiments are conducted in the Tanner EDA tool of mentor graphics bundle on projected circuit designs for the full adder, a chain of 4-inverters, and 4- bit multiplier designs utilizing 180nm, 130nm, and 90nm TSMC technology node. The outcomes obtained show the result of a 95-98% vital reduction in leakage power as well as a 15-20% reduction in dynamic power with a minor increase in delay. The result outcomes are compared for accuracy with the notable design approaches that are accessible for both active and standby modes of operation.
{"title":"Forced stack sleep transistor (FORTRAN): A new leakage current reduction approach in CMOS based circuit designing","authors":"S. Kassa, NEERAJ KUMAR MISRA, R. Nagaria","doi":"10.2298/fuee2102259k","DOIUrl":"https://doi.org/10.2298/fuee2102259k","url":null,"abstract":"Reduction in leakage current has become a significant concern in\u0000 nanotechnology-based low-power, low-voltage, and high-performance VLSI\u0000 applications. This research article discusses a new low-power circuit design\u0000 the approach of FORTRAN (FORced stack sleep TRANsistor), which decreases the\u0000 leakage power efficiency in the CMOS-based circuit outline in VLSI domain.\u0000 FORTRAN approach reduces leakage current in both active as well as standby\u0000 modes of operation. Furthermore, it is not time intensive when the circuit\u0000 goes from active mode to standby mode and vice-versa. To validate the\u0000 proposed design approach, experiments are conducted in the Tanner EDA tool\u0000 of mentor graphics bundle on projected circuit designs for the full adder, a\u0000 chain of 4-inverters, and 4- bit multiplier designs utilizing 180nm, 130nm,\u0000 and 90nm TSMC technology node. The outcomes obtained show the result of a\u0000 95-98% vital reduction in leakage power as well as a 15-20% reduction in\u0000 dynamic power with a minor increase in delay. The result outcomes are\u0000 compared for accuracy with the notable design approaches that are accessible\u0000 for both active and standby modes of operation.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"126 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76838072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A permanent magnet synchronous motor (PMSM) is one kind of popular motor. They are utilized in industrial applications because their abilities included operation at a constant speed, no need for an excitation current, no rotor losses, and small size. In the following paper, a fuzzy evolutionary algorithm is combined with a proportional-integral-derivative (PID) controller to control the speed of a PMSM. In this structure, to overcome the PMSM challenges, including nonlinear nature, cross-coupling, air gap flux, and cogging torque in operation, a Takagi-Sugeno fuzzy logic-PID (TSFL-PID) controller is designed. Additionally, the particle swarm optimization (PSO) algorithm is developed to optimize the membership functions' parameters and rule bases of the fuzzy logic PID controller. For evaluating the proposed controller's performance, the genetic algorithm (GA), as another evolutionary algorithm, is incorporated into the fuzzy PID controller. The results of the speed control of PMSM are compared. The obtained results demonstrate that although both controllers have excellent performance; however, the PSO based TSFL-PID controller indicates more superiority.
{"title":"PSO based Takagi-Sugeno fuzzy PID controller design for speed control of permanent magnet synchronous motor","authors":"H. Ghadiri, H. Khodadadi, Hooman Eijei, M. Ahmadi","doi":"10.2298/fuee2102203g","DOIUrl":"https://doi.org/10.2298/fuee2102203g","url":null,"abstract":"A permanent magnet synchronous motor (PMSM) is one kind of popular motor.\u0000 They are utilized in industrial applications because their abilities\u0000 included operation at a constant speed, no need for an excitation current,\u0000 no rotor losses, and small size. In the following paper, a fuzzy\u0000 evolutionary algorithm is combined with a proportional-integral-derivative\u0000 (PID) controller to control the speed of a PMSM. In this structure, to\u0000 overcome the PMSM challenges, including nonlinear nature, cross-coupling,\u0000 air gap flux, and cogging torque in operation, a Takagi-Sugeno fuzzy\u0000 logic-PID (TSFL-PID) controller is designed. Additionally, the particle\u0000 swarm optimization (PSO) algorithm is developed to optimize the membership\u0000 functions' parameters and rule bases of the fuzzy logic PID controller. For\u0000 evaluating the proposed controller's performance, the genetic algorithm\u0000 (GA), as another evolutionary algorithm, is incorporated into the fuzzy PID\u0000 controller. The results of the speed control of PMSM are compared. The\u0000 obtained results demonstrate that although both controllers have excellent\u0000 performance; however, the PSO based TSFL-PID controller indicates more\u0000 superiority.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"39 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80802145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The results of the reliability testing of Littelfuse and EPCOS gas-filled surge arresters for different overvoltages under DC discharge will be presented in this paper. The static breakdown voltage of these gas components was estimated using voltage increase rates ranging from 1 to 10 V/s. A detailed statistical analysis of experimental data has also been done. The delay time of these components for different nominal overvoltages has been investigated as an additional aspect important for component reliability. In addition, the delay time method was used as a statistical method which can give neither ion nor neutral active states number density in the glow and afterglow. It can be employed for qualitative observation of ions and neutral active states decay in the afterglow to such low concentrations where the other methods cannot be applied. Finally, a comparison has been done between the characteristics of two gas-filled surge arresters which have the same nominal overvoltage (Littelfuse and EPCOS) from different manufacturers.
{"title":"The evolution of breakdown voltage and delay time under high overvoltage for different types of surge arresters","authors":"E. Živanović, M. Živković, M. Pejović","doi":"10.2298/fuee2102307z","DOIUrl":"https://doi.org/10.2298/fuee2102307z","url":null,"abstract":"The results of the reliability testing of Littelfuse and EPCOS gas-filled\u0000 surge arresters for different overvoltages under DC discharge will be\u0000 presented in this paper. The static breakdown voltage of these gas\u0000 components was estimated using voltage increase rates ranging from 1 to 10\u0000 V/s. A detailed statistical analysis of experimental data has also been\u0000 done. The delay time of these components for different nominal overvoltages\u0000 has been investigated as an additional aspect important for component\u0000 reliability. In addition, the delay time method was used as a statistical\u0000 method which can give neither ion nor neutral active states number density\u0000 in the glow and afterglow. It can be employed for qualitative observation of\u0000 ions and neutral active states decay in the afterglow to such low\u0000 concentrations where the other methods cannot be applied. Finally, a\u0000 comparison has been done between the characteristics of two gas-filled surge\u0000 arresters which have the same nominal overvoltage (Littelfuse and EPCOS)\u0000 from different manufacturers.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"174 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73071116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this paper is to construct non-recursive filters, extensively used type of digital filters in digital signal processing applications, based on Chebyshev orthogonal polynomials. The paper proposes the use of the fourth-kind Chebyshev polynomials as functions in generating new filters. In this kind, low-pass filters with linear phase responses are obtained. Comprenhansive study of the frequency response characteristics of the generated filter functions is presented. The effects of coefficient quantization as one type of quantization that influences a filter characteristic are investigated here also. The quantized-coefficient errors are considered based on the number of bits and the implementation algorithms.
{"title":"Coefficient quantization effects on new filters based on Chebyshev fourth-kind polynomials","authors":"B. Stošić","doi":"10.2298/fuee2102291s","DOIUrl":"https://doi.org/10.2298/fuee2102291s","url":null,"abstract":"The aim of this paper is to construct non-recursive filters, extensively used\u0000 type of digital filters in digital signal processing applications, based on\u0000 Chebyshev orthogonal polynomials. The paper proposes the use of the\u0000 fourth-kind Chebyshev polynomials as functions in generating new filters. In\u0000 this kind, low-pass filters with linear phase responses are obtained.\u0000 Comprenhansive study of the frequency response characteristics of the\u0000 generated filter functions is presented. The effects of coefficient\u0000 quantization as one type of quantization that influences a filter\u0000 characteristic are investigated here also. The quantized-coefficient errors\u0000 are considered based on the number of bits and the implementation\u0000 algorithms.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"92 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86588251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Ryder, Ryan M. Alles, G. Karsai, N. Mahadevan, John W. Evans, A. Witulski, M. Campola, R. Austin, Ronald D. Schrimpf
We present an overview of the Systems Engineering and Assurance Modeling (SEAM) platform, a web-browser-based tool which is designed to help engineers evaluate the radiation vulnerabilities and develop an assurance approach for electronic parts in space systems. The SEAM framework consists of three interconnected modeling tools, a SysML compatible system description tool, a Goal Structuring Notation (GSN) visual argument tool, and Bayesian Net and Fault Tree extraction and export tools. The SysML and GSN sections also have a coverage check application that ensures that every radiation fault identified on the SysML side is also addressed in the assurance case in GSN. The SEAM platform works on space systems of any degree of radiation hardness but is especially helpful for assessing radiation performance in systems with commercial off-the-shelf (COTS) electronic components.
{"title":"Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance","authors":"K. Ryder, Ryan M. Alles, G. Karsai, N. Mahadevan, John W. Evans, A. Witulski, M. Campola, R. Austin, Ronald D. Schrimpf","doi":"10.2298/fuee2101001r","DOIUrl":"https://doi.org/10.2298/fuee2101001r","url":null,"abstract":"We present an overview of the Systems Engineering and Assurance Modeling\u0000 (SEAM) platform, a web-browser-based tool which is designed to help\u0000 engineers evaluate the radiation vulnerabilities and develop an assurance\u0000 approach for electronic parts in space systems. The SEAM framework consists\u0000 of three interconnected modeling tools, a SysML compatible system\u0000 description tool, a Goal Structuring Notation (GSN) visual argument tool,\u0000 and Bayesian Net and Fault Tree extraction and export tools. The SysML and\u0000 GSN sections also have a coverage check application that ensures that every\u0000 radiation fault identified on the SysML side is also addressed in the\u0000 assurance case in GSN. The SEAM platform works on space systems of any\u0000 degree of radiation hardness but is especially helpful for assessing\u0000 radiation performance in systems with commercial off-the-shelf (COTS)\u0000 electronic components.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"34 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85042861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nadjah Attik, A. Badoud, Farid Merahi, Abdelbaset Laib, Yahia Ayat
This paper is deals in part of research that has been conducted on modern means in the basis of power electronics. Harmonic cancellation of distribution network is currently a serious problem, especially in high electrical industry. The main source of harmonic currents injected into the network requires attention to reduce the current harmonic levels. Energy quality is a fairly broad concept which covers both, the quality of power supply (voltage wave) and these of the currents injected into the electrical grid. In this context, a modern approved preventive solution in purpose to limit the rate of harmonic disturbance caused by the deferent power electronics systems connected to the grid must take action. It appears necessary to develop the quality and stability of the grid and develop curative devices such as converters provided with a control device making the current drawn on the most sinusoidal network possible. This paper proposes a control of tow stage grid tied PV system established on finite set model predictive control (FS-MPC). The design of FS-MPC is developed depending on the structure and operating principle associated to three-phase inverter tied to the grid. In this context, we have also employed the structure of MPPT controller (P&O) and PI controller for adjustment of the DC-bus voltage. To set the proposed control scheme, numerical simulations are carried out using Matlab/Simulink 2013b. The obtained results demonstrate that the proposed control scheme assure the tracking of MPP and the injection of extracted PV power into the grid with high current quality under irradiation changes.
{"title":"Design of an effective control for grid-connected PV system based on FS-MPC","authors":"Nadjah Attik, A. Badoud, Farid Merahi, Abdelbaset Laib, Yahia Ayat","doi":"10.2298/fuee2101021a","DOIUrl":"https://doi.org/10.2298/fuee2101021a","url":null,"abstract":"This paper is deals in part of research that has been conducted on modern\u0000 means in the basis of power electronics. Harmonic cancellation of\u0000 distribution network is currently a serious problem, especially in high\u0000 electrical industry. The main source of harmonic currents injected into the\u0000 network requires attention to reduce the current harmonic levels. Energy\u0000 quality is a fairly broad concept which covers both, the quality of power\u0000 supply (voltage wave) and these of the currents injected into the electrical\u0000 grid. In this context, a modern approved preventive solution in purpose to\u0000 limit the rate of harmonic disturbance caused by the deferent power\u0000 electronics systems connected to the grid must take action. It appears\u0000 necessary to develop the quality and stability of the grid and develop\u0000 curative devices such as converters provided with a control device making\u0000 the current drawn on the most sinusoidal network possible. This paper\u0000 proposes a control of tow stage grid tied PV system established on finite\u0000 set model predictive control (FS-MPC). The design of FS-MPC is developed\u0000 depending on the structure and operating principle associated to three-phase\u0000 inverter tied to the grid. In this context, we have also employed the\u0000 structure of MPPT controller (P&O) and PI controller for adjustment of the\u0000 DC-bus voltage. To set the proposed control scheme, numerical simulations\u0000 are carried out using Matlab/Simulink 2013b. The obtained results\u0000 demonstrate that the proposed control scheme assure the tracking of MPP and\u0000 the injection of extracted PV power into the grid with high current quality\u0000 under irradiation changes.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"13 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86625476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study investigates the ability of recursive least squares (RLS) and least mean square (LMS) adaptive filtering algorithms to predict and quickly track unknown systems. Tracking unknown system behavior is important if there are other parallel systems that must follow exactly the same behavior at the same time. The adaptive algorithm can correct the filter coefficients according to changes in unknown system parameters to minimize errors between the filter output and the system output for the same input signal. The RLS and LMS algorithms were designed and then examined separately, giving them a similar input signal that was given to the unknown system. The difference between the system output signal and the adaptive filter output signal showed the performance of each filter when identifying an unknown system. The two adaptive filters were able to track the behavior of the system, but each showed certain advantages over the other. The RLS algorithm had the advantage of faster convergence and fewer steady-state errors than the LMS algorithm, but the LMS algorithm had the advantage of less computational complexity.
{"title":"Adaptive method to predict and track unknown system behaviors using RLS and LMS algorithms","authors":"T. Tajdari","doi":"10.2298/fuee2101133t","DOIUrl":"https://doi.org/10.2298/fuee2101133t","url":null,"abstract":"This study investigates the ability of recursive least squares (RLS) and\u0000 least mean square (LMS) adaptive filtering algorithms to predict and quickly\u0000 track unknown systems. Tracking unknown system behavior is important if\u0000 there are other parallel systems that must follow exactly the same behavior\u0000 at the same time. The adaptive algorithm can correct the filter coefficients\u0000 according to changes in unknown system parameters to minimize errors between\u0000 the filter output and the system output for the same input signal. The RLS\u0000 and LMS algorithms were designed and then examined separately, giving them a\u0000 similar input signal that was given to the unknown system. The difference\u0000 between the system output signal and the adaptive filter output signal\u0000 showed the performance of each filter when identifying an unknown system.\u0000 The two adaptive filters were able to track the behavior of the system, but\u0000 each showed certain advantages over the other. The RLS algorithm had the\u0000 advantage of faster convergence and fewer steady-state errors than the LMS\u0000 algorithm, but the LMS algorithm had the advantage of less computational\u0000 complexity.","PeriodicalId":44296,"journal":{"name":"Facta Universitatis-Series Electronics and Energetics","volume":"78 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80757320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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