{"title":"A Series Voltage Regulator based on Quasi-Sinusoidal Waveform to Achieve Smart-Grid Requirements","authors":"I. Pires, Braz J. C. Filho, J. C. Oliveira","doi":"10.1109/IAS.2010.5615309","DOIUrl":"https://doi.org/10.1109/IAS.2010.5615309","url":null,"abstract":"Smart-Grid has emerged as an important requirement to achieve high quality voltage supplied to customers. Within the context of general power quality indicators, a common problem found in distribution systems is the unbalanced voltage. Usually, to solve this type of disturbance, a step voltage regulator can be used to obtain voltage amplitude compensation. However, for many applications, this device does not fulfill the required smart-grid needs. This can be attributed to the slow time response and the inefficacy in compensating unbalanced voltages with phase jumps. Focusing on this subject, this paper proposes a rapid response electronic voltage regulator based on a multilevel series voltage compensator topology. Using a quasi-sinusoidal waveform, the proposed device balances the supply voltages while keeping the compensated voltages within the harmonic distortion limits.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129567344","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}
E. Muljadi, N. Samaan, V. Gevorgian, Jun Yu Li, S. Pasupulati
{"title":"Different Factors Affecting Short Circuit Behavior of a Wind Power Plant","authors":"E. Muljadi, N. Samaan, V. Gevorgian, Jun Yu Li, S. Pasupulati","doi":"10.1109/IAS.2010.5616819","DOIUrl":"https://doi.org/10.1109/IAS.2010.5616819","url":null,"abstract":"A wind power plant consists of a large number of turbines interconnected by underground cable. A pad-mount transformer at each turbine steps up the voltage from generating voltage (690 V) to a medium voltage (34.5 kV). All turbines in the plant are connected to the substation transformer where the voltage is stepped up to the transmission level. An important aspect of wind power plant (WPP) impact studies is to evaluate the short-circuit (SC) current contribution of the plant into the transmission network under different fault conditions. This task can be challenging to protection engineers due to the topology differences between different types of wind turbine generators (WTGs) and the conventional generating units. This paper investigates the short circuit behavior of a wind power plant for different types of faults. The impact of wind turbine types, the transformer configuration, and the reactive compensation capacitor will be investigated. The voltage response at different buses will be observed. Finally, the SC line currents will be presented along with its symmetrical components","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122136720","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}
{"title":"Taiwan First Large-Scale Offshore Wind Farm Connection - A Real Project Case Study","authors":"Yuan-Kang Wu, Ching-Yin Lee, Ging-He Shu","doi":"10.1109/IAS.2010.5614524","DOIUrl":"https://doi.org/10.1109/IAS.2010.5614524","url":null,"abstract":"The west coast and islands of Taiwan have abundant wind resource, which offers a great opportunity for large-scale offshore wind power generation. In Taiwan, the first stage of offshore wind farms at Jhang-Bin and Peng-Hu areas have been planning. Particularly, the Jhang-Bin wind farm would become the first and one of the largest wind farms in Taiwan. Therefore, its impacts on the system operation and security have to be investigated and studied in advance. Following a general connection design discussion, this paper comprises four major system impact analyses: load flow, fault current, voltage variation, and transient stability. Moreover, three types of typical wind turbines have been adopted respectively in this study in order to compare their performances on the wind farm integration system. From the simulation results, some significant conclusions and recommendations have been extracted, which would contribute to the first off-shore wind farm development in Taiwan.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130588318","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}
Jiakun Fang, Haishun Sun, L. Ren, J. Wen, Weijen Lee, Youping Xu, Xiaotao Peng
{"title":"Development and Field Test of Movable Conduction-Cooled High Temperature SMES","authors":"Jiakun Fang, Haishun Sun, L. Ren, J. Wen, Weijen Lee, Youping Xu, Xiaotao Peng","doi":"10.1109/IAS.2010.5614527","DOIUrl":"https://doi.org/10.1109/IAS.2010.5614527","url":null,"abstract":"With the large scale renewable energy being put into utility power system, the active power imbalance becomes one of the major problems. The novel power system stabilizer (PSS) based on energy storage system (ESS) seems to be a potential solution to mitigate fluctuation of both power generation and consumption. Superconducting magnetic energy storage system (SMES) is getting increasing acceptance in various applications of power system for higher efficiency and faster response than other ES devices. This paper introduces the development of a movable conduction-cooled high temperature SMES module as potential energy storage system. For utility power system use, the developed SMES system is with the feature of movable, high temperature superconducting (HTS) and conduction cool. Laboratory experiments including operational characteristics and improvement of power system stability have been carried out. Field experiments have also been carried out in Laohukou hydro power plant in Hubei province of China. Results of both laboratorial and field tests demonstrate the well design and manufacture of the developed movable SMES module.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128758113","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}
N. Leboeuf, T. Boileau, B. Nahid-Mobarakeh, F. Meibody-Tabar
{"title":"Fault Detection in a Current Controlled PM Drive Using Back-EMF Estimation and Residual Analysis","authors":"N. Leboeuf, T. Boileau, B. Nahid-Mobarakeh, F. Meibody-Tabar","doi":"10.1109/IAS.2010.5616894","DOIUrl":"https://doi.org/10.1109/IAS.2010.5616894","url":null,"abstract":"In this paper, a new technique for on-line detecting inter-turn stator winding fault in Permanent Magnet Synchronous Machine (PMSM) is presented. It is based on a residual analysis improved by adding a back-EMF waveform estimation system which allows identifying real back-EMF frequency components of the healthy machine. Then, a simple current residual monitoring permits us to detect the fault and its severity. Simulations and experimentations validate the proposed method and its efficiency.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134584464","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}
{"title":"A New Implementation Method of Wavelet Packet Transform Differential Protection for Power Transformers","authors":"S. Saleh, B. Scaplen, M. Rahman","doi":"10.1109/IAS.2010.5616831","DOIUrl":"https://doi.org/10.1109/IAS.2010.5616831","url":null,"abstract":"This paper presents an innovative implementation of the wavelet packet transform using Butterworth passive filters for differential protection of power transformers. The proposed implementation is based on designing cascaded stages of high pass 3$^{rd}$ order Butterworth filters with cut-off frequencies identical to the cut-off frequencies of wavelet packet transform associated digital quadrature mirror filters. These high pass filters are designed to extract the second level high frequency components present in the three-phase differential currents. The extraction of these frequency components is required in order to detect and classify transients in three-phase power transformers. The output of the designed Butterworth high pass filters is utilized to initiate a trip signal in case of internal fault currents. The 3$^{rd}$ order Butterworth high pass filters are designed to simplify their practical implementation as well as their integration with the differential protective relay for the tested power transformer. Different magnetizing inrush, through-fault and internal fault currents are investigated for different loading conditions. Performances of the proposed Butterworth passive filter-based differential relay are compared with those of the digital wavelet packet transform-based relay. Comparison results show that the Butterworth filter wavelet packet transform-based differential relay is able to provide a low cost good diagnosis and fast responses to internal fault currents.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115691961","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}
{"title":"Designing Harmonic Filters for an Aluminum Smelting Plant","authors":"B. Badrzadeh, K. Smith, Roddy C. Wilson","doi":"10.1109/IAS.2010.5614646","DOIUrl":"https://doi.org/10.1109/IAS.2010.5614646","url":null,"abstract":"This paper presents the results of harmonic analysis and harmonic filter design for a grid connected aluminum smelting plant. Harmonic analysis studies are carried out to detect the system resonance frequencies and determine individual and total harmonic voltage distortion for a wide range of possible system operating conditions including scenarios with N-1 and N-2 generation, an outage of a harmonic filter, and an outage of a rectifier transformer. A conceptual harmonic filter design procedure for the filters required for the smelting plant is presented. The suitability and robustness of the proposed harmonic filter configuration in terms of the filter's components current and voltage ratings, and corresponding r.m.s. values is investigated.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173226","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}
{"title":"A Conjugate Gradient Method for the Solution of the Inverse Heating Problem in Thermoforming","authors":"M. Chy, B. Boulet","doi":"10.1109/IAS.2010.5615349","DOIUrl":"https://doi.org/10.1109/IAS.2010.5615349","url":null,"abstract":"Finding the setpoints of heater temperatures such that the sheet will achieve the desired temperature at the end of the heating cycle is known as the inverse heating problem (IHP) in thermoforming. Although a major portion of the heat is transferred from the oven to the sheet by radiation, conduction and convection also have a significant contribution in sheet heating. This makes the inverse heating problem more complex. In addition, the IHP is often ill-posed in a thermoforming process, making the solution unstable. In this paper, a conjugate gradient method is used to solve the IHP in the control of sheet temperature. In developing the method, computational cost is considered such that it can be implemented as a real-time algorithm in the controller. The performance of the proposed method for solving IHP, and thereby the corresponding sheet temperature controller, are tested in simulation at different operating conditions and compared with the conventional method of solving IHP based on the pseudo-inverse of the view factor matrix. The efficiency of the proposed method for the estimation of heater setpoints and the accuracy of the controller are evidenced by the results, showing promise for prospective real-time applications.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121208477","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}
{"title":"Frequency Analysis of Experimental Waveforms for DC Motors in Digging Applications","authors":"G. Mirzaeva, J. Welsh, T. Summers, R. Betz","doi":"10.1109/IAS.2010.5615651","DOIUrl":"https://doi.org/10.1109/IAS.2010.5615651","url":null,"abstract":"This paper refers to a \"DC Motor Duty Meter\" project which aims to develop a comprehensive condition monitoring tool for DC motors used in mining excavators. The paper presents experimental waveforms measured internally and externally to the motor at different rotation velocities. The paper focuses on analysis of these waveforms both in time and frequency domains. The findings of the analysis are discussed in relation to the motor performance and commutation quality.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122586605","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}
{"title":"Sensorless Power Maximization of PMSG Based Isolated Wind-Battery Hybrid System Using Adaptive Neuro-Fuzzy Controller","authors":"Mukhtiar Singh, A. Chandra, Bhim Singh","doi":"10.1109/IAS.2010.5615370","DOIUrl":"https://doi.org/10.1109/IAS.2010.5615370","url":null,"abstract":"This paper presents a novel Adaptive Network-Based Fuzzy Inference System(ANFIS) for the optimal control of permanent magnet synchronous generator (PMSG) to extract maximum power without the need of speed & position sensors or any complex estimating algorithm. The control algorithm determines the optimal value of torque controlling current component as a function of change in output power. The error between the optimal values of torque current and actual current is utilized to train the ANFIS structure using error back propagation method. In the proposed work, an isolated wind-battery hybrid system is considered, where a boost chopper is used to control the PMSG. A buck-boost converter is used to maintain constant DC-Link voltage and to interface an efficient battery energy storage system (BESS) in order to meet fluctuating load demand under varying wind conditions. The proposed strategy is realized and simulated in MATLAB/SPS environment. The simulation results under dynamic operating conditions are provided to demonstrate the effectiveness of proposed strategy.","PeriodicalId":317643,"journal":{"name":"2010 IEEE Industry Applications Society Annual Meeting","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121917862","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}