Pub Date : 2019-02-01DOI: 10.1109/ICIT.2019.8755115
Xuewei Pan, Zhicong Pang, Lei Li, Fei Zhao
In this paper, the three-level (3L) neutral-point- clamped (NPC) bi-directional coupled quasi Z-source inverter (BCQ-ZSI) is proposed. The inductors of Z source network are coupled for the purpose of input current ripples cancellation. The detailed design of the coupled inductors have been given in terms of electrical and magnetic circuit constraints. Compared with the conventional 3L NPC QZSI, the proposed 3L NPC BCQ-ZSI can achieve completely input current ripples cancellation and also possess the capability of bi-directional power flow. The proposed 3L NPC BCQ-ZSI can avoid discontinuous conduction mode (DCM) with stable dc-link peak voltage under low power factor condition. Simulation results are presented to verify superiorities of the proposed 3L NPC BCQ-ZSI.
{"title":"Input Current Ripples Cancellation in A New Three-level Neutral-Point-Clamped Bi-directional Coupled Quasi Z-Source Inverter","authors":"Xuewei Pan, Zhicong Pang, Lei Li, Fei Zhao","doi":"10.1109/ICIT.2019.8755115","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8755115","url":null,"abstract":"In this paper, the three-level (3L) neutral-point- clamped (NPC) bi-directional coupled quasi Z-source inverter (BCQ-ZSI) is proposed. The inductors of Z source network are coupled for the purpose of input current ripples cancellation. The detailed design of the coupled inductors have been given in terms of electrical and magnetic circuit constraints. Compared with the conventional 3L NPC QZSI, the proposed 3L NPC BCQ-ZSI can achieve completely input current ripples cancellation and also possess the capability of bi-directional power flow. The proposed 3L NPC BCQ-ZSI can avoid discontinuous conduction mode (DCM) with stable dc-link peak voltage under low power factor condition. Simulation results are presented to verify superiorities of the proposed 3L NPC BCQ-ZSI.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"1 1","pages":"1081-1086"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80921976","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8755156
A. Picot, J. Régnier, P. Maussion
An original method for multi-fault detection in synchronous machine is proposed in this paper. This method aims to answer two questions: how to detect a fault when only the normal functioning is known? How to differentiate two different faults from one fault with two severities? The proposed method relies on the use of a recursive Principal Components Analysis (PCA), which is updated each time a new fault is detected. The detection is based on a weighted distance criteria that takes into account the contribution of the different components. A geometrical criteria is also proposed to differentiate new faults from existing ones. The method has been successfully tested on a simulation database of motor currents with different levels of unbalance and eccentricity. It is then tested on real data from a 5.5 kW synchronous machine with three different levels of unbalance.
{"title":"Mechanical faults detection in induction machine using recursive PCA with weighted distance","authors":"A. Picot, J. Régnier, P. Maussion","doi":"10.1109/ICIT.2019.8755156","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8755156","url":null,"abstract":"An original method for multi-fault detection in synchronous machine is proposed in this paper. This method aims to answer two questions: how to detect a fault when only the normal functioning is known? How to differentiate two different faults from one fault with two severities? The proposed method relies on the use of a recursive Principal Components Analysis (PCA), which is updated each time a new fault is detected. The detection is based on a weighted distance criteria that takes into account the contribution of the different components. A geometrical criteria is also proposed to differentiate new faults from existing ones. The method has been successfully tested on a simulation database of motor currents with different levels of unbalance and eccentricity. It is then tested on real data from a 5.5 kW synchronous machine with three different levels of unbalance.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"14 1","pages":"1305-1310"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89735682","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8755184
Waqas Hassan, Samir Gautam, D. Lu, W. Xiao
This paper proposes a new non-isolated, high step-up DC-DC converter to interface renewable sources into DC microgrid. The topology utilizes the coupled inductor and switched capacitor techniques to achieve high step-up voltage conversion ratio. The leakage energy is directly transferred to output to avoid voltage spikes across the switch. The switching devices have relatively low voltage stresses. In addition, the coupled inductor alleviated the reverse recovery problem of the diode. The key features include high efficiency, low voltage stresses, and low component count and cost. The steady-state analysis and operation of the proposed converter are presented in detail. Finally, a 200 W prototype circuit operating at a switching frequency of 100 kHz is built in the laboratory to verify the performance. The experimental results substantiate the theoretical analysis and show a peak efficiency of 96.90%.
{"title":"Analysis, Design, and Experimental Verification of High Step-up DC-DC Converter to Interface Renewable Energy Sources into DC Nanogrid","authors":"Waqas Hassan, Samir Gautam, D. Lu, W. Xiao","doi":"10.1109/ICIT.2019.8755184","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8755184","url":null,"abstract":"This paper proposes a new non-isolated, high step-up DC-DC converter to interface renewable sources into DC microgrid. The topology utilizes the coupled inductor and switched capacitor techniques to achieve high step-up voltage conversion ratio. The leakage energy is directly transferred to output to avoid voltage spikes across the switch. The switching devices have relatively low voltage stresses. In addition, the coupled inductor alleviated the reverse recovery problem of the diode. The key features include high efficiency, low voltage stresses, and low component count and cost. The steady-state analysis and operation of the proposed converter are presented in detail. Finally, a 200 W prototype circuit operating at a switching frequency of 100 kHz is built in the laboratory to verify the performance. The experimental results substantiate the theoretical analysis and show a peak efficiency of 96.90%.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"29 1","pages":"1649-1654"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89754236","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 : 2019-02-01DOI: 10.1109/icit.2019.8755214
{"title":"Advanced Control of High Power Converters for Sustainable Energy","authors":"","doi":"10.1109/icit.2019.8755214","DOIUrl":"https://doi.org/10.1109/icit.2019.8755214","url":null,"abstract":"","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86531140","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8754991
Cristina Paniagua, J. Eliasson, J. Delsing
In Industry 4.0, systems with a heterogeneous implementation, different architecture, protocols, and semantics have to be integrated into collaborative environments. The interoperability between them has become a major challenge in this new ecosystem of the industry, thereby generating several research questions about how to manage the information exchange and collaboration between systems with so vastly different properties.This paper presents a detailed investigation of the different mismatch problems that can happen in the information exchange in heterogeneous SOA-based environments where the interoperability is crucial. The proposed solution in this paper is an Adapter System that can aid generatation of new service consumer interfaces at both compile-time and run-time. The interfaces are based on Service Contracts, thereby allowing heterogeneous systems to communicate and interchange services.The proposed approach requires a new point of view in the service description field that can provide a holistic description of the information required for creating both run-time and compile-time consumer interfaces.
{"title":"Interoperability Mismatch Challenges in Heterogeneous SOA-based Systems","authors":"Cristina Paniagua, J. Eliasson, J. Delsing","doi":"10.1109/ICIT.2019.8754991","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8754991","url":null,"abstract":"In Industry 4.0, systems with a heterogeneous implementation, different architecture, protocols, and semantics have to be integrated into collaborative environments. The interoperability between them has become a major challenge in this new ecosystem of the industry, thereby generating several research questions about how to manage the information exchange and collaboration between systems with so vastly different properties.This paper presents a detailed investigation of the different mismatch problems that can happen in the information exchange in heterogeneous SOA-based environments where the interoperability is crucial. The proposed solution in this paper is an Adapter System that can aid generatation of new service consumer interfaces at both compile-time and run-time. The interfaces are based on Service Contracts, thereby allowing heterogeneous systems to communicate and interchange services.The proposed approach requires a new point of view in the service description field that can provide a holistic description of the information required for creating both run-time and compile-time consumer interfaces.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"22 1","pages":"788-793"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89174125","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8754983
Saeideh Khatiry Goharoodi, Pieter Nguyen Phuc, L. Dupré, G. Crevecoeur
Discovery of natural laws through input-output data analysis has been of considerable interest during the past decade. Various approach among which the increasingly growing body of sparsity-based algorithms have been recently proposed for the purpose of free-form system identification. There has however been limited discussion on the performance of these approaches when applied on experimental datasets. The aim of this paper is to study the capability of this technique for identifying the heat equation as the natural law of heat distribution from experimental data, obtained using a Totally-Enclosed-Fan-Cooled (TEFC) induction machine, with and without active cooling. The results confirm the usefulness of the algorithm as a method to identify the underlying natural law in a physical system in the form of a Partial Differential Equation (PDE).
{"title":"Data-driven discovery of the heat equation in an induction machine via sparse regression","authors":"Saeideh Khatiry Goharoodi, Pieter Nguyen Phuc, L. Dupré, G. Crevecoeur","doi":"10.1109/ICIT.2019.8754983","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8754983","url":null,"abstract":"Discovery of natural laws through input-output data analysis has been of considerable interest during the past decade. Various approach among which the increasingly growing body of sparsity-based algorithms have been recently proposed for the purpose of free-form system identification. There has however been limited discussion on the performance of these approaches when applied on experimental datasets. The aim of this paper is to study the capability of this technique for identifying the heat equation as the natural law of heat distribution from experimental data, obtained using a Totally-Enclosed-Fan-Cooled (TEFC) induction machine, with and without active cooling. The results confirm the usefulness of the algorithm as a method to identify the underlying natural law in a physical system in the form of a Partial Differential Equation (PDE).","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"79 1","pages":"90-95"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78970112","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 : 2019-02-01DOI: 10.1109/icit.2019.8755233
{"title":"Advanced Power Electronics for Power Quality in Distributed Power Systems","authors":"","doi":"10.1109/icit.2019.8755233","DOIUrl":"https://doi.org/10.1109/icit.2019.8755233","url":null,"abstract":"","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"468 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76681828","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8754955
Ngoc-Tu Bui, Trong-Thuc Hoang, Duc-Hung Le, C. Pham
In this paper, a Silicon On Thin Buried-oxide (SOTB) implementation of the 32-bit floating-point Twiddle Factor (TF) is presented. The architecture was developed based on the adaptive COordinate Rotation DIgital Computer (CORDIC). The CORDIC method is a well-known approach for approximating the complex-number multiplication, also known as TF in Fast Fourier Transform (FFT) designs. The SOTB-65nm TF core layout has the size area of 86.7K-µm2. The measurement results showed that at the best crossing-point of the 0.75-V power supply (VDD), the chip could run at the maximum operating frequency (FMax) of 32-MHz and consumed 181-µW power. At the sleep-mode, the leakage power dropped about 258.6× to 0.7-µW at the 0.75-V VDD.
本文提出了一种32位浮点旋转因子(TF)的薄层埋式氧化硅(SOTB)实现方法。该体系结构是基于自适应坐标旋转数字计算机(CORDIC)开发的。CORDIC方法是一种众所周知的近似复数乘法的方法，也称为快速傅里叶变换(FFT)设计中的TF。SOTB-65nm TF核心布局的尺寸面积为86.7K-µm2。测量结果表明，在0.75 v电源(VDD)的最佳交叉点，芯片可以在32 mhz的最大工作频率(FMax)下运行，功耗为181µW。在休眠模式下，在0.75 v VDD下，泄漏功率下降约258.6倍至0.7µW。
{"title":"A 0.75-V 32-MHz 181-µW SOTB-65nm Floating-point Twiddle Factor Using Adaptive CORDIC","authors":"Ngoc-Tu Bui, Trong-Thuc Hoang, Duc-Hung Le, C. Pham","doi":"10.1109/ICIT.2019.8754955","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8754955","url":null,"abstract":"In this paper, a Silicon On Thin Buried-oxide (SOTB) implementation of the 32-bit floating-point Twiddle Factor (TF) is presented. The architecture was developed based on the adaptive COordinate Rotation DIgital Computer (CORDIC). The CORDIC method is a well-known approach for approximating the complex-number multiplication, also known as TF in Fast Fourier Transform (FFT) designs. The SOTB-65nm TF core layout has the size area of 86.7K-µm2. The measurement results showed that at the best crossing-point of the 0.75-V power supply (VDD), the chip could run at the maximum operating frequency (FMax) of 32-MHz and consumed 181-µW power. At the sleep-mode, the leakage power dropped about 258.6× to 0.7-µW at the 0.75-V VDD.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"19 1","pages":"835-840"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83523675","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8755148
Wenjin Liu, Hongqi Li, Huipeng Yin, Xuewei Pan
A bidirectional three-level current-fed DC/DC converter is proposed for low voltage high current application. To reduce the peak current through high frequency (HF) transformer and switches at light load condition, a dual phase shift modulation is proposed and employed. Zero current switching of primary switches and zero voltage switching of secondary switches are achieved for a wide load range. The voltage across primary devices is naturally clamped at rather low reflected output voltage, enabling the use of low voltage rating devices. The total losses are reduced significantly and the converter performance is greatly improved. Simulation results and experimental results are presented to verify to the theoretical analysis.
{"title":"A Bidirectional Three-Level Current-Fed DC/DC Converter Using Dual Phase Shift Modulation","authors":"Wenjin Liu, Hongqi Li, Huipeng Yin, Xuewei Pan","doi":"10.1109/ICIT.2019.8755148","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8755148","url":null,"abstract":"A bidirectional three-level current-fed DC/DC converter is proposed for low voltage high current application. To reduce the peak current through high frequency (HF) transformer and switches at light load condition, a dual phase shift modulation is proposed and employed. Zero current switching of primary switches and zero voltage switching of secondary switches are achieved for a wide load range. The voltage across primary devices is naturally clamped at rather low reflected output voltage, enabling the use of low voltage rating devices. The total losses are reduced significantly and the converter performance is greatly improved. Simulation results and experimental results are presented to verify to the theoretical analysis.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"21 1","pages":"325-330"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86978645","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 : 2019-02-01DOI: 10.1109/ICIT.2019.8755008
N. Marks, W. Kong, Daniel S. Birt
Power hardware-in-the-loop (PHIL) is an attractive real-time test and validation technique for large power systems. It can be used instead of full simulation or experimental systems to reduce cost and risk, and improve testing flexibility. A key challenge is achieving a power interface with as much transparency as possible via interface algorithms, power amplifiers, and measurement and control strategies. Voltage source converters (VSCs) are a suitable amplifier option for high power applications due to their relative efficiency, but they restrict the bandwidth and update speed of the power signal reproduced for the Item-under-Test (IuT). The stability and accuracy of the PHIL system are consequently affected by these additional dynamics. This paper evaluates the stability and accuracy of a Damping Impedance Model (DIM) based PHIL system where a VSC power interface is controlled by a linear voltage controller. It will be shown that the stability and accuracy can be improved with the use of a controller, when compared to the simple open loop modulation strategy often used in PHIL applications.
{"title":"Impacts of Linear Controllers for Power Interfaces in Damping Impedance Model Based Power Hardware-in-the-Loop","authors":"N. Marks, W. Kong, Daniel S. Birt","doi":"10.1109/ICIT.2019.8755008","DOIUrl":"https://doi.org/10.1109/ICIT.2019.8755008","url":null,"abstract":"Power hardware-in-the-loop (PHIL) is an attractive real-time test and validation technique for large power systems. It can be used instead of full simulation or experimental systems to reduce cost and risk, and improve testing flexibility. A key challenge is achieving a power interface with as much transparency as possible via interface algorithms, power amplifiers, and measurement and control strategies. Voltage source converters (VSCs) are a suitable amplifier option for high power applications due to their relative efficiency, but they restrict the bandwidth and update speed of the power signal reproduced for the Item-under-Test (IuT). The stability and accuracy of the PHIL system are consequently affected by these additional dynamics. This paper evaluates the stability and accuracy of a Damping Impedance Model (DIM) based PHIL system where a VSC power interface is controlled by a linear voltage controller. It will be shown that the stability and accuracy can be improved with the use of a controller, when compared to the simple open loop modulation strategy often used in PHIL applications.","PeriodicalId":6701,"journal":{"name":"2019 IEEE International Conference on Industrial Technology (ICIT)","volume":"47 1","pages":"464-471"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90901209","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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