Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754415
D. Geiger, S. Mark Halpin
Managing voltage distortion in power systems usually consists of two steps. The first step, mostly utilized outside of North America, involves limiting harmonic emissions from individual pieces of equipment. The second step, utilized worldwide in different ways, is to manage harmonic emissions on a system level. Traditionally, equipment emissions have been managed at low voltage (LV) whereas system-level electromagnetic compatibility (EMC) issues, including harmonics, have been managed at medium, high, and extra-high voltages (MV, HV, and EHV). With the continued growth of lowvoltage networks, it is becoming necessary to implement some type of system-level coordination strategy at low voltage. Toward this end, IEC TC77/SC77A/WG8 has developed a committee draft document outlining an EMC coordination approach for harmonics, flicker, and voltage unbalance in LV systems and networks. This work is intended to bridge the existing gap in EMC coordination between small equipment harmonic limits and (larger) installation-level limits. To effectively bridge this gap, it is necessary to borrow concepts from both equipment and system-level EMC coordination approaches while not overburdening the parties involved in the process. The possibilities of using current harmonic limits for small installations connected to LV are considered in this paper.
{"title":"Managing harmonic emissions from small low voltage installations","authors":"D. Geiger, S. Mark Halpin","doi":"10.1109/ICIT.2011.5754415","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754415","url":null,"abstract":"Managing voltage distortion in power systems usually consists of two steps. The first step, mostly utilized outside of North America, involves limiting harmonic emissions from individual pieces of equipment. The second step, utilized worldwide in different ways, is to manage harmonic emissions on a system level. Traditionally, equipment emissions have been managed at low voltage (LV) whereas system-level electromagnetic compatibility (EMC) issues, including harmonics, have been managed at medium, high, and extra-high voltages (MV, HV, and EHV). With the continued growth of lowvoltage networks, it is becoming necessary to implement some type of system-level coordination strategy at low voltage. Toward this end, IEC TC77/SC77A/WG8 has developed a committee draft document outlining an EMC coordination approach for harmonics, flicker, and voltage unbalance in LV systems and networks. This work is intended to bridge the existing gap in EMC coordination between small equipment harmonic limits and (larger) installation-level limits. To effectively bridge this gap, it is necessary to borrow concepts from both equipment and system-level EMC coordination approaches while not overburdening the parties involved in the process. The possibilities of using current harmonic limits for small installations connected to LV are considered in this paper.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132793036","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754356
S. Nath, N. Mohan
This paper proposes a power electronic converter, with sinusoidal currents in high frequency transformer. High frequency power transformers are capable of replacing the bulky power transformers in power systems.
{"title":"A solid sate power converter with sinusoidal currents in high frequency transformer for power system applications","authors":"S. Nath, N. Mohan","doi":"10.1109/ICIT.2011.5754356","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754356","url":null,"abstract":"This paper proposes a power electronic converter, with sinusoidal currents in high frequency transformer. High frequency power transformers are capable of replacing the bulky power transformers in power systems.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131667877","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754348
T. Vinopraba, N. Sivakumaran, S. Narayanan
This article presents the design of Internal Model Controller (IMC) based Fractional Order Two-Degrees-of-Freedom controller with the desired bandwidth specification and the robustness of the designed controller is briefly analyzed. For the conventional IMC based PID controller, One-Degree of Freedom is sufficient to meet the desired bandwidth specification for both Servo and regulatory performances. These features of the IMC based PID controller is combined with fractional order controller, as the fractional calculus has made a major impact in the control research community. It has been analytically and mathematically proved that One-Degree of Freedom IMC based fractional order controller tuned for the disturbance rejection will not meet the nominal specification for the set point tracking. To overcome this drawback, IMC based fractional order Two-Degree-of-Freedom controller is reported in this article.
{"title":"IMC based Fractional order PID controller","authors":"T. Vinopraba, N. Sivakumaran, S. Narayanan","doi":"10.1109/ICIT.2011.5754348","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754348","url":null,"abstract":"This article presents the design of Internal Model Controller (IMC) based Fractional Order Two-Degrees-of-Freedom controller with the desired bandwidth specification and the robustness of the designed controller is briefly analyzed. For the conventional IMC based PID controller, One-Degree of Freedom is sufficient to meet the desired bandwidth specification for both Servo and regulatory performances. These features of the IMC based PID controller is combined with fractional order controller, as the fractional calculus has made a major impact in the control research community. It has been analytically and mathematically proved that One-Degree of Freedom IMC based fractional order controller tuned for the disturbance rejection will not meet the nominal specification for the set point tracking. To overcome this drawback, IMC based fractional order Two-Degree-of-Freedom controller is reported in this article.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133253388","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754347
T. Itto, K. Kogiso
This paper presents a hybrid modeling method for a pneumatic artificial muscle that vertically suspends a mass. The modeling mainly consists of mechanical and hydrodynamic equations and is developed with empirical modifications. A feature of this approach is that it allows the model to include if-then formulation and nonlinearity such as flow dynamics and friction. And the model includes a novel mass flow model which allows the mass flow rate to converge to zero in steady-state operation. Furthermore, in order to show validation of the obtained hybrid model using a practical testbed system of the PAM we made.
{"title":"Hybrid modeling of McKibben pneumatic artificial muscle systems","authors":"T. Itto, K. Kogiso","doi":"10.1109/ICIT.2011.5754347","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754347","url":null,"abstract":"This paper presents a hybrid modeling method for a pneumatic artificial muscle that vertically suspends a mass. The modeling mainly consists of mechanical and hydrodynamic equations and is developed with empirical modifications. A feature of this approach is that it allows the model to include if-then formulation and nonlinearity such as flow dynamics and friction. And the model includes a novel mass flow model which allows the mass flow rate to converge to zero in steady-state operation. Furthermore, in order to show validation of the obtained hybrid model using a practical testbed system of the PAM we made.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115476049","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754343
H. Chaoui, P. Sicard
This paper introduces an adaptive DC bus voltage control strategy for renewable energy systems, combining different energy storage devices, i.e., batteries, fuel cells, and supercapacitors. Multiple bidirectional DC-DC converters accurate control is achieved with no source voltage sensing, which reduces the number of sensors. Unlike many adaptive controllers, the proposed strategy uses a single adaptive parameter, which yields reduced complexity. The proposed approach is compared to a classical PI-based cascaded control scheme. The adaptive control strategy achieves better performance, which yields a high-efficiency operation of the overall system.
{"title":"Adaptive DC bus voltage control for renewable energy production systems with uncertainties","authors":"H. Chaoui, P. Sicard","doi":"10.1109/ICIT.2011.5754343","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754343","url":null,"abstract":"This paper introduces an adaptive DC bus voltage control strategy for renewable energy systems, combining different energy storage devices, i.e., batteries, fuel cells, and supercapacitors. Multiple bidirectional DC-DC converters accurate control is achieved with no source voltage sensing, which reduces the number of sensors. Unlike many adaptive controllers, the proposed strategy uses a single adaptive parameter, which yields reduced complexity. The proposed approach is compared to a classical PI-based cascaded control scheme. The adaptive control strategy achieves better performance, which yields a high-efficiency operation of the overall system.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125312606","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754368
M. Wei, Tian‐Hua Liu
This paper proposes a dual current-slope rotor position estimation and its relative sensorless closed-loop drive system for synchronous reluctance motors. First, the mathematical model of the synchronous reluctance motor is discussed. Then, a new rotor position/speed estimator of the synchronous reluctance motor is proposed. The proposed method uses dual current-slope to estimate the rotor position and rotor speed for a synchronous reluctance motor. In addition, the estimator can easily be realized and is unrelated to the motor parameters. The estimating technique does not require any extra hardware circuit when compared to the traditional drive system. A TMS-320F-28335 digital signal processor is used to execute the rotor position/speed estimation, the position or speed control algorithms, the d-q to a-b-c coordinate transformation, and the PWM switching strategy. The hardware circuit, therefore, is very simple. Several experimental results are provided to validate the theoretical analysis.
{"title":"Rotor position and speed estimation for a synchronous reluctance motor drive using dual current-slope technique","authors":"M. Wei, Tian‐Hua Liu","doi":"10.1109/ICIT.2011.5754368","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754368","url":null,"abstract":"This paper proposes a dual current-slope rotor position estimation and its relative sensorless closed-loop drive system for synchronous reluctance motors. First, the mathematical model of the synchronous reluctance motor is discussed. Then, a new rotor position/speed estimator of the synchronous reluctance motor is proposed. The proposed method uses dual current-slope to estimate the rotor position and rotor speed for a synchronous reluctance motor. In addition, the estimator can easily be realized and is unrelated to the motor parameters. The estimating technique does not require any extra hardware circuit when compared to the traditional drive system. A TMS-320F-28335 digital signal processor is used to execute the rotor position/speed estimation, the position or speed control algorithms, the d-q to a-b-c coordinate transformation, and the PWM switching strategy. The hardware circuit, therefore, is very simple. Several experimental results are provided to validate the theoretical analysis.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121126056","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754360
Eyad K. Almaita, J. Asumadu
Radial basis function neural networks (RBFNN) are used to dynamically identify harmonics content in converter waveforms based on p-q (real power-imaginary power) theory. The converter waveforms are analyzed and the harmonic contents are identified over a wide operating range. The proposed RBFNN filtering training algorithm are based on systematic and computationally efficient training method called hybrid learning method. The small size and the robustness of the resulted network reflect the effectiveness of the proposed algorithm. The analysis is verified using MATLAB simulation.
{"title":"Dynamic harmonic identification in converter waveforms using radial basis function neural networks (RBFNN) and p-q power theory","authors":"Eyad K. Almaita, J. Asumadu","doi":"10.1109/ICIT.2011.5754360","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754360","url":null,"abstract":"Radial basis function neural networks (RBFNN) are used to dynamically identify harmonics content in converter waveforms based on p-q (real power-imaginary power) theory. The converter waveforms are analyzed and the harmonic contents are identified over a wide operating range. The proposed RBFNN filtering training algorithm are based on systematic and computationally efficient training method called hybrid learning method. The small size and the robustness of the resulted network reflect the effectiveness of the proposed algorithm. The analysis is verified using MATLAB simulation.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325957","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754372
T. Park, Taehyung Kim
The digital revolution and faster switching devices have introduced more sophisticated control systems that require high quality and reliable operation. The rapidly growing demand for alternative/renewable energy generation systems and use of energy sources on a large scale, require new technologies. In this paper, a novel renewable energy conversion system, which has the reduced number of switching elements preserving the same power conversion functionality is proposed. The proposed multi-mode energy conversion system is able to supply energy from multi-sources (renewable energy source, battery, and ultra-capacitor) to a load and store energy with the minimum number of switching elements. The proposed approach is verified both by simulations and experiments. The results will enable more timely and wide usage of alternative/renewable energy systems resulting in increased energy security.
{"title":"Novel multi-mode single leg converter for renewable energy conversion systems","authors":"T. Park, Taehyung Kim","doi":"10.1109/ICIT.2011.5754372","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754372","url":null,"abstract":"The digital revolution and faster switching devices have introduced more sophisticated control systems that require high quality and reliable operation. The rapidly growing demand for alternative/renewable energy generation systems and use of energy sources on a large scale, require new technologies. In this paper, a novel renewable energy conversion system, which has the reduced number of switching elements preserving the same power conversion functionality is proposed. The proposed multi-mode energy conversion system is able to supply energy from multi-sources (renewable energy source, battery, and ultra-capacitor) to a load and store energy with the minimum number of switching elements. The proposed approach is verified both by simulations and experiments. The results will enable more timely and wide usage of alternative/renewable energy systems resulting in increased energy security.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132693674","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754345
S. Cai, M. Becherif, M. Wack, M. Ayad, A. Kebairi
In this paper, an adaptive PID-Fuzzy Logic controller is proposed in order to control the angular displacement of an automobile Pierburg mechatronic actuator and achieve a wireless network control. This new PID-fuzzy logic controller topology takes advantage of the classical PID controller and the fuzzy logic technique which can improve the angular displacement precision and reduce the time delay caused by the wireless communication in the control loop. Different from other fuzzy PID controllers, our PID controller is located before the fuzzy controller and acts as its inputs. A mathematical analysis and the advantages of the designed controller are discussed. The proposed PID-Fuzzy Logic controller achieves the control task reducing the steady-state error and the time delay. Experimentation results of the wireless control are presented exhibiting good performances.
{"title":"Design of a wireless controller for an automotive actuator based on PID-Fuzzy Logic","authors":"S. Cai, M. Becherif, M. Wack, M. Ayad, A. Kebairi","doi":"10.1109/ICIT.2011.5754345","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754345","url":null,"abstract":"In this paper, an adaptive PID-Fuzzy Logic controller is proposed in order to control the angular displacement of an automobile Pierburg mechatronic actuator and achieve a wireless network control. This new PID-fuzzy logic controller topology takes advantage of the classical PID controller and the fuzzy logic technique which can improve the angular displacement precision and reduce the time delay caused by the wireless communication in the control loop. Different from other fuzzy PID controllers, our PID controller is located before the fuzzy controller and acts as its inputs. A mathematical analysis and the advantages of the designed controller are discussed. The proposed PID-Fuzzy Logic controller achieves the control task reducing the steady-state error and the time delay. Experimentation results of the wireless control are presented exhibiting good performances.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115131138","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}
Pub Date : 2011-03-14DOI: 10.1109/ICIT.2011.5754389
Metin Toz, S. Kucuk
The computational cost of the dynamic equations is very important in real time control applications of industrial robot manipulators. Basically, the computational cost depends on the joint properties, the method used for deriving the dynamic equations and the algorithm efficiency. In this study, the dynamic equations for the sixteen three and six degrees of freedom fundamental robot configurations were derived using Newton-Euler (N-E), Lagrange-Euler (L-E) and Hamiltonian (H) methods in symbolic form. The computational costs of these dynamic equations for both three and six degrees of freedom manipulators are obtained. Some comparisons considering the joint properties, the method and the workspace geometries of the manipulators are performed and some important conclusions are summarized.
{"title":"A comparative study for computational cost of fundamental robot manipulators","authors":"Metin Toz, S. Kucuk","doi":"10.1109/ICIT.2011.5754389","DOIUrl":"https://doi.org/10.1109/ICIT.2011.5754389","url":null,"abstract":"The computational cost of the dynamic equations is very important in real time control applications of industrial robot manipulators. Basically, the computational cost depends on the joint properties, the method used for deriving the dynamic equations and the algorithm efficiency. In this study, the dynamic equations for the sixteen three and six degrees of freedom fundamental robot configurations were derived using Newton-Euler (N-E), Lagrange-Euler (L-E) and Hamiltonian (H) methods in symbolic form. The computational costs of these dynamic equations for both three and six degrees of freedom manipulators are obtained. Some comparisons considering the joint properties, the method and the workspace geometries of the manipulators are performed and some important conclusions are summarized.","PeriodicalId":356868,"journal":{"name":"2011 IEEE International Conference on Industrial Technology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125738251","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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