Pub Date : 2019-12-01DOI: 10.1109/PSC49016.2019.9081542
Mahdi Eshaghi-Maskouni, Ali Abedini-Livari, M. Vakilian
Electricity distribution companies always strive to operate the power network efficiently and reliably so that their network be able to satisfy the growing needs for electricity. To achieve these goals in a power network, a comprehensive asset management plan with a sound policy for inspection, periodic maintenance, replacement, and disposal of depreciated equipment is required. In this paper, authors concentrate on line composite insulators asset management. These types of insulators have desirable characteristics such as: hydrophobicity, lower price, and lower weight if compared with the ceramic insulators which make them more attractive than other types of insulators. The output of “insulation condition assessment” of these insulators is employed to develop an asset management plan; which involves: inspection plan, condition monitoring, determination of the aging stage, early failure predictions, washing schedules, and repair strategies. Various condition monitoring methods are used in this work, such as: measuring the contact angle of water droplets on the insulator's surface, scanning electron microscopy (SEM), and leakage current analysis to determine the degradation process and the aging rate of composite insulator. Finally, the asset management algorithm of these insulators is presented on the basis of insulation condition assessment, and then it is applied to the condition assessment of three samples of the composite insulators to improve the reliability and life of the insulator system.
{"title":"A Comprehensive Condition Assessment Method for Line Composite Insulator Asset Management","authors":"Mahdi Eshaghi-Maskouni, Ali Abedini-Livari, M. Vakilian","doi":"10.1109/PSC49016.2019.9081542","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081542","url":null,"abstract":"Electricity distribution companies always strive to operate the power network efficiently and reliably so that their network be able to satisfy the growing needs for electricity. To achieve these goals in a power network, a comprehensive asset management plan with a sound policy for inspection, periodic maintenance, replacement, and disposal of depreciated equipment is required. In this paper, authors concentrate on line composite insulators asset management. These types of insulators have desirable characteristics such as: hydrophobicity, lower price, and lower weight if compared with the ceramic insulators which make them more attractive than other types of insulators. The output of “insulation condition assessment” of these insulators is employed to develop an asset management plan; which involves: inspection plan, condition monitoring, determination of the aging stage, early failure predictions, washing schedules, and repair strategies. Various condition monitoring methods are used in this work, such as: measuring the contact angle of water droplets on the insulator's surface, scanning electron microscopy (SEM), and leakage current analysis to determine the degradation process and the aging rate of composite insulator. Finally, the asset management algorithm of these insulators is presented on the basis of insulation condition assessment, and then it is applied to the condition assessment of three samples of the composite insulators to improve the reliability and life of the insulator system.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124255364","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081452
A. Maleki, S. Hosseinian, M. Nazari
Distribution networks are constructed to deliver electricity from transmission systems to end-use consumers. In this way, smart grid is introduced to manage the system in a sustainable, reliable, and economical manner which demand response is one of the key integral parts of a smart grid. Demand response provides an opportunity for end-use consumers to modify their normal consumption pattern when electricity procurement prices are higher or the reliability of the system is jeopardized. The focus of this paper is on potential impacts of different demand response programs on the operation of power systems, especially on the operation of distribution networks that are studied here. The first goal of this paper is to quantify the potential benefits of demand response to the operation of distribution networks. The second goal of this paper is to extend the existing decision frameworks to consider demand response of load which lead to coordinate demand side potentials with distribution companies' technical and financial objectives thereby increasing their profit. The effectiveness of the extended models is demonstrated by simulating them on a real distribution system and illustrates technical and financial aspects improvement in the operation of the network when demand response potentials are realized by these models.
{"title":"Smart Grid Operation in Presence of Priced Based and Incentive Based Responsive Demands and Renewable Energy Systems","authors":"A. Maleki, S. Hosseinian, M. Nazari","doi":"10.1109/PSC49016.2019.9081452","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081452","url":null,"abstract":"Distribution networks are constructed to deliver electricity from transmission systems to end-use consumers. In this way, smart grid is introduced to manage the system in a sustainable, reliable, and economical manner which demand response is one of the key integral parts of a smart grid. Demand response provides an opportunity for end-use consumers to modify their normal consumption pattern when electricity procurement prices are higher or the reliability of the system is jeopardized. The focus of this paper is on potential impacts of different demand response programs on the operation of power systems, especially on the operation of distribution networks that are studied here. The first goal of this paper is to quantify the potential benefits of demand response to the operation of distribution networks. The second goal of this paper is to extend the existing decision frameworks to consider demand response of load which lead to coordinate demand side potentials with distribution companies' technical and financial objectives thereby increasing their profit. The effectiveness of the extended models is demonstrated by simulating them on a real distribution system and illustrates technical and financial aspects improvement in the operation of the network when demand response potentials are realized by these models.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120997581","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081497
Mahdi Samadi, Ali Ghaznavi, M. Hajiabadi, I. Nikoofekr, M. Yeylaghi
In this paper, we have proposed some under-frequency load shedding (UFLS) schemes for implementation in the Khorasan Network. In this regard, we have suggested a new relation to determine the number of substations required for load shedding at each frequency step, using which, the guideline of IGMC is well observed for the UFLS schemes. In the analysis of the proposed schemes, after reviewing the required constraints, their features have been analyzed in terms of three basic aspects: 1.The amount of load shedding at each frequency step; 2.The frequency response and its stability after disturbance (generator or tie-line outage or sudden load increase); 3.The geographical distribution of substations in each scheme; The Khorasan grid was modeled in the DigSilent Power Factory software with all the actual information of loads and power plants as well as the required dynamic parameters to analyze the frequency of the system in the contingency. The results of this study will be highly effective and useful in the quantitative evaluation of UFLS and selecting the optimal schemes.
在本文中，我们提出了一些低频减载(UFLS)方案来实施呼罗珊网络。在这方面，我们提出了一个新的关系式来确定每个频率步长减载所需的变电站数量，使用该关系式可以很好地观察到IGMC准则对UFLS方案的影响。在对所提方案的分析中，在审查了所需要的约束条件后，从三个基本方面分析了其特征:1。各频率阶的减载量;2.扰动(发电机或联络线中断或负载突然增加)后的频率响应及其稳定性;3.各方案变电站的地理分布;在DigSilent Power Factory软件中对呼罗珊电网进行建模，并获取所有负荷和电厂的实际信息以及所需的动态参数，以分析系统在突发事件中的频率。本文的研究结果对UFLS的定量评价和优化方案的选择具有重要的参考价值。
{"title":"Proposing New UFLS Schemes to Model the Iran Grid management Co. (IGMC) Constraints Considering Three Main Aspects: Load Shedding, Frequency and Geographical Distribution","authors":"Mahdi Samadi, Ali Ghaznavi, M. Hajiabadi, I. Nikoofekr, M. Yeylaghi","doi":"10.1109/PSC49016.2019.9081497","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081497","url":null,"abstract":"In this paper, we have proposed some under-frequency load shedding (UFLS) schemes for implementation in the Khorasan Network. In this regard, we have suggested a new relation to determine the number of substations required for load shedding at each frequency step, using which, the guideline of IGMC is well observed for the UFLS schemes. In the analysis of the proposed schemes, after reviewing the required constraints, their features have been analyzed in terms of three basic aspects: 1.The amount of load shedding at each frequency step; 2.The frequency response and its stability after disturbance (generator or tie-line outage or sudden load increase); 3.The geographical distribution of substations in each scheme; The Khorasan grid was modeled in the DigSilent Power Factory software with all the actual information of loads and power plants as well as the required dynamic parameters to analyze the frequency of the system in the contingency. The results of this study will be highly effective and useful in the quantitative evaluation of UFLS and selecting the optimal schemes.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127455476","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081517
Y. Hashemi, H. Abdolrezaei, B. Hashemi
This paper presents a framework to simultaneously coordinate generation and reactive expansion planning. With presence of amalgam power flow controller (APFC) as useful FACTS devices, generation planning has been done in different scenarios and cases. APFC is a combination of electromagnetic and voltage source converter that it has the specifications of both devices. The objective functions for generation expansion planning (GEP) includes investment and operation cost for generation units. Operation cost has been divided into three parts: a) maintenance cost, b) fuel cost and c) emission cost. Investment cost of reactive power and voltage deviation index are two objective functions considered in RPP. The proposed coordinated GEP and RPP is formulated as a multi-objective optimization problem that it is solved by adaptive NSGT-III. The proposed framework is a multi-objective optimization problem and the output of solved problem is Pareto-optimal diagram. Pareto-optimal diagram is a set of desirable points that it can be employed for expansion planning. To select the best solution among Pareto-points, TOPSIS method is used. The proposed framework is tested on 24-bus IEEE test system. The simulation results have been compared for two scenarios and four cases.
{"title":"Coordination of Generation and Reactive Power Expansion Planning Considering APFC Units","authors":"Y. Hashemi, H. Abdolrezaei, B. Hashemi","doi":"10.1109/PSC49016.2019.9081517","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081517","url":null,"abstract":"This paper presents a framework to simultaneously coordinate generation and reactive expansion planning. With presence of amalgam power flow controller (APFC) as useful FACTS devices, generation planning has been done in different scenarios and cases. APFC is a combination of electromagnetic and voltage source converter that it has the specifications of both devices. The objective functions for generation expansion planning (GEP) includes investment and operation cost for generation units. Operation cost has been divided into three parts: a) maintenance cost, b) fuel cost and c) emission cost. Investment cost of reactive power and voltage deviation index are two objective functions considered in RPP. The proposed coordinated GEP and RPP is formulated as a multi-objective optimization problem that it is solved by adaptive NSGT-III. The proposed framework is a multi-objective optimization problem and the output of solved problem is Pareto-optimal diagram. Pareto-optimal diagram is a set of desirable points that it can be employed for expansion planning. To select the best solution among Pareto-points, TOPSIS method is used. The proposed framework is tested on 24-bus IEEE test system. The simulation results have been compared for two scenarios and four cases.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125122754","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081555
Pedram Pakravan, Payam Pakravan, M. Menhaj
This paper presents Dynamic Matrix Control (DMC)-based strategies for the wind turbine- system. In order to the uncontrollable nature of the wind energy, the output power of the wind energy conversion systems (WECS) is also uncontrollable. This uncontrollability makes the WECS unable to respond to the load frequency variation when a system disturbance occurs. The instability of such a power system leads to the system failure. In this article, a model DMC is used for supporting load frequency control (LFC) in a doubly fed induction generator (DFIG)-based WECS under the variation of wind speed. It is illustrated that DMC can accept more feedback signals than any other conventional controllers, such as a proportional integral-derivate (PID), which makes it superior. simulation results illustrate that DMC gives stable response and faster to LFC than PID. The effectiveness of the methods is verified by time domain simulations.
{"title":"Dynamic Matrix Control of Load Frequency Control for Doubly Fed Induction Generator Wind Energy Grid Connected","authors":"Pedram Pakravan, Payam Pakravan, M. Menhaj","doi":"10.1109/PSC49016.2019.9081555","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081555","url":null,"abstract":"This paper presents Dynamic Matrix Control (DMC)-based strategies for the wind turbine- system. In order to the uncontrollable nature of the wind energy, the output power of the wind energy conversion systems (WECS) is also uncontrollable. This uncontrollability makes the WECS unable to respond to the load frequency variation when a system disturbance occurs. The instability of such a power system leads to the system failure. In this article, a model DMC is used for supporting load frequency control (LFC) in a doubly fed induction generator (DFIG)-based WECS under the variation of wind speed. It is illustrated that DMC can accept more feedback signals than any other conventional controllers, such as a proportional integral-derivate (PID), which makes it superior. simulation results illustrate that DMC gives stable response and faster to LFC than PID. The effectiveness of the methods is verified by time domain simulations.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"504 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123419413","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081523
H. Karami, G. Gharehpetian
De-noising of partial discharge (PD) is the most important task in PD detection and localization for power transformers and power cables. The performance of adaptive singular value decomposition (ASVD) method, as one of newly used de-noising method, has been shown in power cable PD denoising. However, this approach has some limitations which should be considered by users before applying it. This paper investigates limitations of ASVD method for PD de-noising, especially in power transformers.
{"title":"Limitations of Partial Discharge De-noising of Power Transformer Using Adaptive Singular Value Decomposition","authors":"H. Karami, G. Gharehpetian","doi":"10.1109/PSC49016.2019.9081523","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081523","url":null,"abstract":"De-noising of partial discharge (PD) is the most important task in PD detection and localization for power transformers and power cables. The performance of adaptive singular value decomposition (ASVD) method, as one of newly used de-noising method, has been shown in power cable PD denoising. However, this approach has some limitations which should be considered by users before applying it. This paper investigates limitations of ASVD method for PD de-noising, especially in power transformers.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116005200","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081521
Masoomeh Rahmani, Behnam Gholamrezazadeh Family
This paper describes the implementation of baseband GMSK modulator/demodulator (modem) on a field programmable gate array. Such implementation offers flexible design. Practical design issues in modem implementation on a FPGA have been discussed in detail.
{"title":"Design and Implementation of a GMSK Baseband Modem for UHF Radio modem","authors":"Masoomeh Rahmani, Behnam Gholamrezazadeh Family","doi":"10.1109/PSC49016.2019.9081521","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081521","url":null,"abstract":"This paper describes the implementation of baseband GMSK modulator/demodulator (modem) on a field programmable gate array. Such implementation offers flexible design. Practical design issues in modem implementation on a FPGA have been discussed in detail.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122915255","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081491
F. Asadi, S. E. Abdollahi, S. Gholamian, S. Mirnikjoo
Flux Switching (FS) machines have recently received much attention because of their high torque density and their simple rotor structure. In these machines, the armature coil and excitation system are both mounted on the stator structure, and the rotor lacks any coils, Permanent Magnets (PMs) or cages. One of the drawbacks of the FS machines is employment of large quantity expensive Rare Earth Magnets (REM) in their stator structure. In order to tackle this problem, ferrite PMs can be replaced due to their low price. However, their energy-product is low proposed machine torque density is reduced. Double stator structure is considered to solve this problem. In this machine, as in the conventional FS machines, the rotor pole number has a significant effect on machine performance. Therefore, in this paper, the effect of rotor topologies on the performance of a ferrite-based Double-Stator Flux Switching Permanent Magnet (DSFSPM) machine is investigated. In this regard a DSFSPM is designed with several rotor pole numbers and their generated back-EMF waveform and developed electromagnetic torque are simulated and analyzed by Finite Element Method (FEM).
{"title":"Topologies of a Double Stator Flux Switching Motor with Ferrite Magnets","authors":"F. Asadi, S. E. Abdollahi, S. Gholamian, S. Mirnikjoo","doi":"10.1109/PSC49016.2019.9081491","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081491","url":null,"abstract":"Flux Switching (FS) machines have recently received much attention because of their high torque density and their simple rotor structure. In these machines, the armature coil and excitation system are both mounted on the stator structure, and the rotor lacks any coils, Permanent Magnets (PMs) or cages. One of the drawbacks of the FS machines is employment of large quantity expensive Rare Earth Magnets (REM) in their stator structure. In order to tackle this problem, ferrite PMs can be replaced due to their low price. However, their energy-product is low proposed machine torque density is reduced. Double stator structure is considered to solve this problem. In this machine, as in the conventional FS machines, the rotor pole number has a significant effect on machine performance. Therefore, in this paper, the effect of rotor topologies on the performance of a ferrite-based Double-Stator Flux Switching Permanent Magnet (DSFSPM) machine is investigated. In this regard a DSFSPM is designed with several rotor pole numbers and their generated back-EMF waveform and developed electromagnetic torque are simulated and analyzed by Finite Element Method (FEM).","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785779","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081462
A. Maleki, S. Ghiasi, M. Nazari, Peyman Salmanpour Bandaghiri
One of the cases that is often ignored in most distribution system researches, including in the distribution network rearrangement problem, is the uncertainty in the amount of load consumed and the power output of distributed generation resources. Thus, the certain methods that are used do not provide a complete and comprehensive view of the real state of the network. Similarly, in most studies, the single-phase nature of loads in distribution networks and their unbalanced nature is neglected and the results will be erroneous by assuming that loads are balanced. In this paper, both network rearrangement strategies and determining the optimal location of distributed generation in an unbalanced distribution network with the aim of simultaneously minimizing losses and improving network voltage profiles are studied using the multi-objective genetic optimization method (NSGA-II). Also, in order to consider the uncertainty of network loads and the amount of output power of distributed generation sources, a method which the stability of the solutions will be added to the two previous objectives is used. Finally, the problem is solved by generating Pareto front for different load scenarios and distributed generation and selecting the most stable solution from the set of solutions available on the Pareto front.
{"title":"Multi-objective rearrangement of unbalanced distribution network by considering uncertainty of loads and distributed generation by NSGA-II algorithm","authors":"A. Maleki, S. Ghiasi, M. Nazari, Peyman Salmanpour Bandaghiri","doi":"10.1109/PSC49016.2019.9081462","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081462","url":null,"abstract":"One of the cases that is often ignored in most distribution system researches, including in the distribution network rearrangement problem, is the uncertainty in the amount of load consumed and the power output of distributed generation resources. Thus, the certain methods that are used do not provide a complete and comprehensive view of the real state of the network. Similarly, in most studies, the single-phase nature of loads in distribution networks and their unbalanced nature is neglected and the results will be erroneous by assuming that loads are balanced. In this paper, both network rearrangement strategies and determining the optimal location of distributed generation in an unbalanced distribution network with the aim of simultaneously minimizing losses and improving network voltage profiles are studied using the multi-objective genetic optimization method (NSGA-II). Also, in order to consider the uncertainty of network loads and the amount of output power of distributed generation sources, a method which the stability of the solutions will be added to the two previous objectives is used. Finally, the problem is solved by generating Pareto front for different load scenarios and distributed generation and selecting the most stable solution from the set of solutions available on the Pareto front.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128712913","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081532
V. Teymoori, Naser Eskandaria, N. Arish, A. Khalili
Dual excitation permanent magnetic motor is a brushless squirrel cage permanent magnetic motor that have two separate three-phase coil winders with unequal poles and are typically fed by two separate three-phase inverters. Direct control is a convenient control method for the control of a permanent drive motor with a dual excitation squirrel cage. It is difficult to estimate the rotor flux in this control method for low speeds. This paper proposes a direct control method based on rotor flux compensator that the result is to maintain the standard drive performance of the motor at low speeds, which results in a lower power loss of the inverter unit than conventional control methods. The rotor flux in the proposed control method is compensated by a proportional-integral controller. The nature of the proposed control method is based on the separate control of the rotor flux and the electromagnetic torque along the direct (d) and orthogonal (q) axes, respectively, and rotor flux compensation is done by modifying the rotor reference flux. Also in this paper, for the first time, the number of inverter unit switching elements in the proposed drive of this motor is reduced by using five-cylinder and nine-circuit power converters. The benefits of using these proposed structures in drive are to reduce the cost of the inverter unit and reduce the power losses of the inverter unit.
{"title":"Design of permanent magnetic motor speed controller drive with power supply inverter based on a new switching method","authors":"V. Teymoori, Naser Eskandaria, N. Arish, A. Khalili","doi":"10.1109/PSC49016.2019.9081532","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081532","url":null,"abstract":"Dual excitation permanent magnetic motor is a brushless squirrel cage permanent magnetic motor that have two separate three-phase coil winders with unequal poles and are typically fed by two separate three-phase inverters. Direct control is a convenient control method for the control of a permanent drive motor with a dual excitation squirrel cage. It is difficult to estimate the rotor flux in this control method for low speeds. This paper proposes a direct control method based on rotor flux compensator that the result is to maintain the standard drive performance of the motor at low speeds, which results in a lower power loss of the inverter unit than conventional control methods. The rotor flux in the proposed control method is compensated by a proportional-integral controller. The nature of the proposed control method is based on the separate control of the rotor flux and the electromagnetic torque along the direct (d) and orthogonal (q) axes, respectively, and rotor flux compensation is done by modifying the rotor reference flux. Also in this paper, for the first time, the number of inverter unit switching elements in the proposed drive of this motor is reduced by using five-cylinder and nine-circuit power converters. The benefits of using these proposed structures in drive are to reduce the cost of the inverter unit and reduce the power losses of the inverter unit.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124678443","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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