Pub Date : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960250
A. Hota, Mohammad M. Qasim, J. Kirtley, V. Agarwal
Model predictive control (MPC) is gaining popularity for power electronics systems due to its various advantages. Hence, it is expected that MPC would be very effective for the control of home appliance motors. However, for the control of a low-cost home appliance motor drive, an open loop control would suffice. In this work, the option of using the MPC for the open-loop home appliance applications, is explored. In an open loop system, a feedback is not used but MPC requires a feedback to operate as it is closed loop in nature. Therefore, a virtual feedback generation (VFG) strategy is used, where the fed-back voltage is not sensed but calculated using the switching pulses and inverter dc-link voltage. Later this open loop MPC is further modified to use in an electrolytic capacitorless induction motor drive. In this drive the dc-link electrolytic capacitor is reduced to such a value that it can be replaced with a film capacitor of comparable cost. However, this causes significant ripple in the dc-link. But, due to the application of the proposed control strategy, the performance of the drive is not affected. Simulation studies are carried out in MATLAB/SIMULINK platform and presented in this paper to validate the various claims.
{"title":"A Low Cost Electrolytic Capacitor-less Induction Motor Drive Based on a Novel Open Loop Model Predictive Control Strategy","authors":"A. Hota, Mohammad M. Qasim, J. Kirtley, V. Agarwal","doi":"10.1109/i-PACT44901.2019.8960250","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960250","url":null,"abstract":"Model predictive control (MPC) is gaining popularity for power electronics systems due to its various advantages. Hence, it is expected that MPC would be very effective for the control of home appliance motors. However, for the control of a low-cost home appliance motor drive, an open loop control would suffice. In this work, the option of using the MPC for the open-loop home appliance applications, is explored. In an open loop system, a feedback is not used but MPC requires a feedback to operate as it is closed loop in nature. Therefore, a virtual feedback generation (VFG) strategy is used, where the fed-back voltage is not sensed but calculated using the switching pulses and inverter dc-link voltage. Later this open loop MPC is further modified to use in an electrolytic capacitorless induction motor drive. In this drive the dc-link electrolytic capacitor is reduced to such a value that it can be replaced with a film capacitor of comparable cost. However, this causes significant ripple in the dc-link. But, due to the application of the proposed control strategy, the performance of the drive is not affected. Simulation studies are carried out in MATLAB/SIMULINK platform and presented in this paper to validate the various claims.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"7 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131804051","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960213
A. Umamageswari, A. Jebasheela, Ruby Durairaj, Dr. M. A. Leo Vijilious
The objective of the work is to provide security to the medical images by embedding medical data (EPR-Electronic Patient Record) along with the image to reduce the bandwidth during communication. Reversible watermarking and Digital Signature itself will provide high security. This application mainly used in tele-surgery (Medical Expert to Medical Expert Communication). Only the authorized medical experts can explore the patients’ image because of Kerberos. The proposed work is mainly to restrict the unauthorized access to get the patients'data. So medical image authentication may be achieved without biometric recognition such as finger prints and eye stamps etc. The EPR itself contains the patients’ entire history, so after the extraction process Medical expert can able to identify the patient and also the disease information. In future we can embed the EPR inside the medical image after it got encrypted to achieve more security. To increase the authentication, Medical Expert biometric information can be embedded inside the image in the future. Experiments were conducted using more than 500 (512×512) image archives in various modalities from the NIH (National Institute of Health) and Aycan sample digital images downloaded from the internet and tests are conducted. Almost in all images with greater than 15000 bits embedding size and got PSNR of 60.4 dB to 78.9 dB with low distortion in received image because of compression, not because of watermarking and average NPCR (Number of Pixels Change Rate) is 98.9 %.
该工作的目的是通过在图像中嵌入医疗数据(epr -电子病历)来保证医学图像的安全性，以减少通信过程中的带宽。可逆水印和数字签名本身将提供高安全性。该应用程序主要用于远程手术(医学专家对医学专家通信)。由于Kerberos，只有经过授权的医学专家才能对患者的图像进行探索。所提出的工作主要是限制未经授权的访问以获取患者数据。因此，医学图像认证可以在不需要指纹、眼戳等生物特征识别的情况下实现。EPR本身包含了患者的整个病史，因此在提取过程后，医学专家可以识别患者和疾病信息。在未来，我们可以将EPR嵌入经过加密的医学图像中，以达到更高的安全性。为了增加身份验证，未来可以将医学专家的生物特征信息嵌入到图像中。实验使用了来自美国国立卫生研究院(NIH)和Aycan从互联网下载的数字图像样本的500多张不同形式的图像档案(512×512)进行，并进行了测试。在几乎所有大于15000位嵌入尺寸的图像中，通过压缩而非水印，接收图像的PSNR在60.4 dB ~ 78.9 dB之间，失真程度低，平均NPCR (Number of Pixels Change Rate)为98.9%。
{"title":"Enhancing Security in Medical Image Informatics with Various Attacks","authors":"A. Umamageswari, A. Jebasheela, Ruby Durairaj, Dr. M. A. Leo Vijilious","doi":"10.1109/i-PACT44901.2019.8960213","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960213","url":null,"abstract":"The objective of the work is to provide security to the medical images by embedding medical data (EPR-Electronic Patient Record) along with the image to reduce the bandwidth during communication. Reversible watermarking and Digital Signature itself will provide high security. This application mainly used in tele-surgery (Medical Expert to Medical Expert Communication). Only the authorized medical experts can explore the patients’ image because of Kerberos. The proposed work is mainly to restrict the unauthorized access to get the patients'data. So medical image authentication may be achieved without biometric recognition such as finger prints and eye stamps etc. The EPR itself contains the patients’ entire history, so after the extraction process Medical expert can able to identify the patient and also the disease information. In future we can embed the EPR inside the medical image after it got encrypted to achieve more security. To increase the authentication, Medical Expert biometric information can be embedded inside the image in the future. Experiments were conducted using more than 500 (512×512) image archives in various modalities from the NIH (National Institute of Health) and Aycan sample digital images downloaded from the internet and tests are conducted. Almost in all images with greater than 15000 bits embedding size and got PSNR of 60.4 dB to 78.9 dB with low distortion in received image because of compression, not because of watermarking and average NPCR (Number of Pixels Change Rate) is 98.9 %.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134279583","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960125
H. Nguyen, Viet-Cuong Vo, Van-Quan Vo, T. Phan, T. Tran
Solid The objective of this paper is to investigate the feasibility of solar power generation using a roof PV and grid connection in Phu Quoc by using a top-down approach combined with Vietnam’s Government policies to prove economic and technical feasibility. To do that, the author is based on the data on the development planning of Phu Quoc in the period 2020-2030, the database of Vietnam and the applications of the new technology of the world. The numerical research results show that the potential of solar power generation corresponds to the low, medium and high level of PV development scenarios of 229,174 GWh/year, 347,716 GWh/year and 585,719 GWh/year respectively. However, the PV generation project in Phu Quoc can reduce CO2 emissions corresponding to the three PV development scenarios are respectively 107,826 ton/year, 163,600 ton/year and 275,581 ton/year. In addition, this result can approve that the solar energy system in Phu Quoc is a highly feasible application in practice aiming to contribute to energy security and environmental protection.
{"title":"A Feasible Proposal for Small Capacity Solar Power Generation at Phu Quoc, Viet Nam","authors":"H. Nguyen, Viet-Cuong Vo, Van-Quan Vo, T. Phan, T. Tran","doi":"10.1109/i-PACT44901.2019.8960125","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960125","url":null,"abstract":"Solid The objective of this paper is to investigate the feasibility of solar power generation using a roof PV and grid connection in Phu Quoc by using a top-down approach combined with Vietnam’s Government policies to prove economic and technical feasibility. To do that, the author is based on the data on the development planning of Phu Quoc in the period 2020-2030, the database of Vietnam and the applications of the new technology of the world. The numerical research results show that the potential of solar power generation corresponds to the low, medium and high level of PV development scenarios of 229,174 GWh/year, 347,716 GWh/year and 585,719 GWh/year respectively. However, the PV generation project in Phu Quoc can reduce CO2 emissions corresponding to the three PV development scenarios are respectively 107,826 ton/year, 163,600 ton/year and 275,581 ton/year. In addition, this result can approve that the solar energy system in Phu Quoc is a highly feasible application in practice aiming to contribute to energy security and environmental protection.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"137 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113970106","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960193
Juhi Gupta, Rajnandini Tiwari, Yatri Patel, Geetali Saha
Majority research, projects and products are made unnecessarily complex. Our proposed unit is a relatively simpler wheel chair with a basic Bluetooth module (which is in-built in smart phones) interfaced with ultrasonic sensor for ease of use not only to the paralyzed person but also for the person who is assisting the patient. The major objective behind our design is to construct an automated wheelchair that can operate in household and neighborhood environment in a safe and flexible manner, further reducing computational requirements. The proposed system navigates longitudinal (forward and backward) and angular (left and right) movements of the wheelchair. It serves basic domestic requirements like collision detection and one-arm control apart from comfort to the Hemiplegia patient. A Hemiplegia patient suffers from facial misalignment, impaired speech, impaired eyeball movement, compromised mobility and/or emotional dependency. 3-D design of some major components is done using CREO software to ensure light weightedness, compactness and comfort of the total assembled wheelchair.
{"title":"Self Propelled Wheelchair Design for Hemiplegia Patient using CREO 3.0","authors":"Juhi Gupta, Rajnandini Tiwari, Yatri Patel, Geetali Saha","doi":"10.1109/i-PACT44901.2019.8960193","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960193","url":null,"abstract":"Majority research, projects and products are made unnecessarily complex. Our proposed unit is a relatively simpler wheel chair with a basic Bluetooth module (which is in-built in smart phones) interfaced with ultrasonic sensor for ease of use not only to the paralyzed person but also for the person who is assisting the patient. The major objective behind our design is to construct an automated wheelchair that can operate in household and neighborhood environment in a safe and flexible manner, further reducing computational requirements. The proposed system navigates longitudinal (forward and backward) and angular (left and right) movements of the wheelchair. It serves basic domestic requirements like collision detection and one-arm control apart from comfort to the Hemiplegia patient. A Hemiplegia patient suffers from facial misalignment, impaired speech, impaired eyeball movement, compromised mobility and/or emotional dependency. 3-D design of some major components is done using CREO software to ensure light weightedness, compactness and comfort of the total assembled wheelchair.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127689549","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960065
Sundaram B. Pandya, H. Jariwala
This paper shows the single and multi-objective edition of the newly projected Dragonfly Algorithm (DA) known as Non-Dominated Sorting Dragonfly Algorithm (NSDA) for the solution of multi-objectives optimal power flow problem. This projected NSDA algorithm is working in such a manner that, it primary finds all non-dominated Pareto optimal results at last end iteration number. Then crowding distance approach and fuzzy decision making technique are applied for finding the best compromise solutions among all the Pareto fronts in the dominated regions of multi-objective search spaces. The results are validated through the IEEE 30-bus test system and compared with the other latest optimization algorithms.
{"title":"Non Dominated Sorting Dragonfly Algorithm For Multi-Objectives Optimal Power Flow","authors":"Sundaram B. Pandya, H. Jariwala","doi":"10.1109/i-PACT44901.2019.8960065","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960065","url":null,"abstract":"This paper shows the single and multi-objective edition of the newly projected Dragonfly Algorithm (DA) known as Non-Dominated Sorting Dragonfly Algorithm (NSDA) for the solution of multi-objectives optimal power flow problem. This projected NSDA algorithm is working in such a manner that, it primary finds all non-dominated Pareto optimal results at last end iteration number. Then crowding distance approach and fuzzy decision making technique are applied for finding the best compromise solutions among all the Pareto fronts in the dominated regions of multi-objective search spaces. The results are validated through the IEEE 30-bus test system and compared with the other latest optimization algorithms.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127700894","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960076
Venktesh Mishra, Premnath Gupta
This paper analyse the utilization of field orientated control method for controlling the voltage and frequency of a variable speed-constant frequency wound rotor induction machine operate in autonomous mode. For autonomous mode of operation, an isolated load is connected with wound rotor induction generation system consist of back-to-back coupled power electronics converters connected between stator and rotor of generator. In low windy areas such type of wind energy systems are more suitable. For operation in stator flux oriented synchronously rotating reference frame, speed-sensing control method used to control rotor side converter. Hysteresis controllers are used for providing control pulses for rotor side converter. These control pulses achieved from the generated error signals by comparing the actual and reference rotor current. The simulation of 2 MVA Wind energy generation systems is done through wound rotor induction machine prototype in MATLAB/Simulink. The simulation results obtained from the 2 MVA systems are observed and analysed in this paper.
{"title":"Wind energy generation system using wound rotor induction machine","authors":"Venktesh Mishra, Premnath Gupta","doi":"10.1109/i-PACT44901.2019.8960076","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960076","url":null,"abstract":"This paper analyse the utilization of field orientated control method for controlling the voltage and frequency of a variable speed-constant frequency wound rotor induction machine operate in autonomous mode. For autonomous mode of operation, an isolated load is connected with wound rotor induction generation system consist of back-to-back coupled power electronics converters connected between stator and rotor of generator. In low windy areas such type of wind energy systems are more suitable. For operation in stator flux oriented synchronously rotating reference frame, speed-sensing control method used to control rotor side converter. Hysteresis controllers are used for providing control pulses for rotor side converter. These control pulses achieved from the generated error signals by comparing the actual and reference rotor current. The simulation of 2 MVA Wind energy generation systems is done through wound rotor induction machine prototype in MATLAB/Simulink. The simulation results obtained from the 2 MVA systems are observed and analysed in this paper.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121044057","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960080
Amit Kadarmandalgi, Mythili Asaithambi
Nadi Pariksha is a non-invasive pulse diagnosis method for assessing health of person in Ayurveda. The disease caused can be related to imbalance in any of three doshas i.e. vatha, pittha and kapha. The health status of the person is examined by Ayurvedic physician by feeling palpation from three fingers (index, middle and ring) placed on the radial artery for vatha, pittha and kapha respectively. In present research work the design and development of the pulse diagnosis system was carried out, in which Photoplethysmography (PPG) sensor was interfaced with Arduino was used to acquire wrist pulse signals from subjects in the form of data sets. Matlab software was used in signal processing after performing frequency domain analysis using power spectrum to design a filter and feature extraction was performed on these signals. Algorithms for three parameters were designed related to pulse sensors namely pulse wave velocity, augmentation index and reflectivity index. Data sets were created with the help of hundred volunteers. After performing statistical analysis on these data sets a standard signal was established. Finally this experimental setup was used to diagnose patients with symptoms associated with imbalance in Tridosha to look for deviations from the standard vatha pittha kapha signal and these results were compared with theoretical results as per Ayurveda. Based on this research we came up with a conclusion with respect to the system designed.
{"title":"Pulse diagnosis System for Nadi Pariksha using parametric and statistical analysis","authors":"Amit Kadarmandalgi, Mythili Asaithambi","doi":"10.1109/i-PACT44901.2019.8960080","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960080","url":null,"abstract":"Nadi Pariksha is a non-invasive pulse diagnosis method for assessing health of person in Ayurveda. The disease caused can be related to imbalance in any of three doshas i.e. vatha, pittha and kapha. The health status of the person is examined by Ayurvedic physician by feeling palpation from three fingers (index, middle and ring) placed on the radial artery for vatha, pittha and kapha respectively. In present research work the design and development of the pulse diagnosis system was carried out, in which Photoplethysmography (PPG) sensor was interfaced with Arduino was used to acquire wrist pulse signals from subjects in the form of data sets. Matlab software was used in signal processing after performing frequency domain analysis using power spectrum to design a filter and feature extraction was performed on these signals. Algorithms for three parameters were designed related to pulse sensors namely pulse wave velocity, augmentation index and reflectivity index. Data sets were created with the help of hundred volunteers. After performing statistical analysis on these data sets a standard signal was established. Finally this experimental setup was used to diagnose patients with symptoms associated with imbalance in Tridosha to look for deviations from the standard vatha pittha kapha signal and these results were compared with theoretical results as per Ayurveda. Based on this research we came up with a conclusion with respect to the system designed.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128649019","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960082
Shubham Tiwari, Arjun C. Unni, Rajanivedha R., J. Singh, Weerakom Ongsakul
Power Rectifiers are mainly employed in power system to convert AC power into controlled DC power. Since DC motors are very commonly broadly used in several industrial areas due to their simple and adjustable characteristics. With help of power electronics controllers, its regulation and handling become very simple and accurate. But contrary on other hand due to the over integration of these devices, problems regarding power factor and harmonic distortion (T.H.D) turn out to be a prominent concern. In this paper, AC power fed to DC motor drive is controlled and regulated by several controllers which includes thyristor- based converters with different pulse width modulation technique along various filters to reduce total harmonic distortions.
{"title":"Harmonic Analysis of Separately Excited DC Motor Drive","authors":"Shubham Tiwari, Arjun C. Unni, Rajanivedha R., J. Singh, Weerakom Ongsakul","doi":"10.1109/i-PACT44901.2019.8960082","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960082","url":null,"abstract":"Power Rectifiers are mainly employed in power system to convert AC power into controlled DC power. Since DC motors are very commonly broadly used in several industrial areas due to their simple and adjustable characteristics. With help of power electronics controllers, its regulation and handling become very simple and accurate. But contrary on other hand due to the over integration of these devices, problems regarding power factor and harmonic distortion (T.H.D) turn out to be a prominent concern. In this paper, AC power fed to DC motor drive is controlled and regulated by several controllers which includes thyristor- based converters with different pulse width modulation technique along various filters to reduce total harmonic distortions.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117188979","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960152
J. Myala, J. Borra, V. Patel
Flight control engineers use certain control structure depending upon requirements and resource availability while designing flight control laws. Classical control design is carried out by assessing the stability margins of each loop while closing all other loops for each flight condition for scheduled gain control laws. This is repeated one at a time for all the loops and therefore it is very time−consuming. A Linear Quadratic Regulator (LQR) design has inherent stability feature and is more suitable for multi input multi output (MIMO) system but the feedback gain matrix using LQR design has all non−zero elements which uses complete feedback from all the states to drive all the inputs. In this paper, gain suppression algorithm is used following to LQR design to achieve classical control law structure, i.e. to remove feedback from state to particular input. Generic flight control law design procedure is briefly outlined. The advantages and practical issues related to the implementation of LQR design method at the system level from industry point of view are elaborated
{"title":"Partially Structured LQR design for Lateral-Directional Flight Control Law","authors":"J. Myala, J. Borra, V. Patel","doi":"10.1109/i-PACT44901.2019.8960152","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960152","url":null,"abstract":"Flight control engineers use certain control structure depending upon requirements and resource availability while designing flight control laws. Classical control design is carried out by assessing the stability margins of each loop while closing all other loops for each flight condition for scheduled gain control laws. This is repeated one at a time for all the loops and therefore it is very time−consuming. A Linear Quadratic Regulator (LQR) design has inherent stability feature and is more suitable for multi input multi output (MIMO) system but the feedback gain matrix using LQR design has all non−zero elements which uses complete feedback from all the states to drive all the inputs. In this paper, gain suppression algorithm is used following to LQR design to achieve classical control law structure, i.e. to remove feedback from state to particular input. Generic flight control law design procedure is briefly outlined. The advantages and practical issues related to the implementation of LQR design method at the system level from industry point of view are elaborated","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115335752","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960061
Ch V Ramachandra Rao, M. Siva Rama Ganesh, K. Sekhar, R. Pradeep Sudha, Lakshman Kumar Dangeti, S. Sarathbabu Duvvuri
This paper presents a Generalized MPPT control based DC-DC boost converter to generate continuous power with its preserved dynamic control system. The PV array is modeled with algebraic loop to achieve accurate solution with iterations in large sample of times. The larger time steps are utilized in this model to obtain fast simulation. MPPT controller embedded with Generalized P and O technique in PV system to regulate duty cycle through which maximum continuous power will be obtained. The MPPT controller with proposed converter is designed in a strategy to extract continuous power regardless of irradiance and temperature. 100kW PV array connected 25kV utility grid is examined in MATLAB SIMULINK and compared with other models in available literature to show effectiveness of designed model.
{"title":"A Generalized MPPT Controlled DC-DC Boost Converter for PV System Connected to Utility Grid","authors":"Ch V Ramachandra Rao, M. Siva Rama Ganesh, K. Sekhar, R. Pradeep Sudha, Lakshman Kumar Dangeti, S. Sarathbabu Duvvuri","doi":"10.1109/i-PACT44901.2019.8960061","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960061","url":null,"abstract":"This paper presents a Generalized MPPT control based DC-DC boost converter to generate continuous power with its preserved dynamic control system. The PV array is modeled with algebraic loop to achieve accurate solution with iterations in large sample of times. The larger time steps are utilized in this model to obtain fast simulation. MPPT controller embedded with Generalized P and O technique in PV system to regulate duty cycle through which maximum continuous power will be obtained. The MPPT controller with proposed converter is designed in a strategy to extract continuous power regardless of irradiance and temperature. 100kW PV array connected 25kV utility grid is examined in MATLAB SIMULINK and compared with other models in available literature to show effectiveness of designed model.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115467022","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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