Pub Date : 2016-11-01DOI: 10.1109/PECON.2016.7951572
Athraa Iessa, N. Wahab, N. Mariun, H. Hizam
Among the significant renewable resources, wind power has acquired the spotlight, due to the quick development in wind energy conversion technology. However, the penetration level of wind power cannot be increased randomly for maximum power generation primarily because the wind farms cannot always provide a precise amount of power similar to the conventional synchronous generators. Since the frequency is the most affected by the penetration of wind power due to the variable nature and the less inertia of these turbines, it is necessary to estimate the maximum level of wind energy that can maintain a nominal frequency and does not affect the frequency stability of the power system. In this paper, new procedures to determine the maximum wind penetration level using transient frequency deviation index (TFDI) and based on the center of inertia frequency are presented. The results of procedures are established through the dynamic simulation of WSCC 9-bus test system. By using this method, the critical wind level can be assessed while the system preserves acceptable operation frequency.
{"title":"Method of estimating the maximum penetration level of wind power using transient frequency deviation index based on COI frequency","authors":"Athraa Iessa, N. Wahab, N. Mariun, H. Hizam","doi":"10.1109/PECON.2016.7951572","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951572","url":null,"abstract":"Among the significant renewable resources, wind power has acquired the spotlight, due to the quick development in wind energy conversion technology. However, the penetration level of wind power cannot be increased randomly for maximum power generation primarily because the wind farms cannot always provide a precise amount of power similar to the conventional synchronous generators. Since the frequency is the most affected by the penetration of wind power due to the variable nature and the less inertia of these turbines, it is necessary to estimate the maximum level of wind energy that can maintain a nominal frequency and does not affect the frequency stability of the power system. In this paper, new procedures to determine the maximum wind penetration level using transient frequency deviation index (TFDI) and based on the center of inertia frequency are presented. The results of procedures are established through the dynamic simulation of WSCC 9-bus test system. By using this method, the critical wind level can be assessed while the system preserves acceptable operation frequency.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116678162","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951647
M. R. B. Khan, J. Pasupuleti, R. Jidin
In this paper, multi-agent architecture was used to provide control for standalone microgrid with distributed generations. Therefore, to achieve a faster control compared to the centralized controller, each agent incorporated with a local prediction or forecasting model to provide anticipatory responses. To accomplish their common goals successfully, the agents cooperated based on facilitator architecture with game-theory. Initially, the agents estimate its own parameters and dynamically adjust them by playing non-cooperative game with other agents. The predictive algorithm is based on autoregressive model where each agent will predict the load demand alongside renewable energy resources in order to dynamically regulate the control parameters. This will provide a faster response where the agents will anticipate future load demand and available renewable resources and adjust their parameters beforehand. Hence, this will minimize the fluctuations of voltage and frequency in the microgrid leading to more efficient power dispatch and lower power losses.
{"title":"Anticipatory response model for multi-agent based energy management system in a standalone microgrid","authors":"M. R. B. Khan, J. Pasupuleti, R. Jidin","doi":"10.1109/PECON.2016.7951647","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951647","url":null,"abstract":"In this paper, multi-agent architecture was used to provide control for standalone microgrid with distributed generations. Therefore, to achieve a faster control compared to the centralized controller, each agent incorporated with a local prediction or forecasting model to provide anticipatory responses. To accomplish their common goals successfully, the agents cooperated based on facilitator architecture with game-theory. Initially, the agents estimate its own parameters and dynamically adjust them by playing non-cooperative game with other agents. The predictive algorithm is based on autoregressive model where each agent will predict the load demand alongside renewable energy resources in order to dynamically regulate the control parameters. This will provide a faster response where the agents will anticipate future load demand and available renewable resources and adjust their parameters beforehand. Hence, this will minimize the fluctuations of voltage and frequency in the microgrid leading to more efficient power dispatch and lower power losses.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116726893","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951621
M. Sheikh, N. M. Nor, T. Ibrahim
Induction motor is a workhorse in industrial system and it poses a great challenge for the fault detection scheme due to large and complex data processing. Induction motor fault can lead to huge losses and excessive downtimes with regards to maintenance and production. An external fault like unbalanced voltages supply could be much severed and result in excessive losses, mechanical oscillations, over-voltage, and interference with control electronics. Detection of an abnormality like unbalanced voltage supply is a challenging task in the interaction of electrical motor and the power grid. In this paper, two new methods are presented to diagnose unbalanced voltage supply at the incipient stage. In first method, a new approach is introduced to formulate the total number of winding turns associated with a particular slot. After the formulation, the unbalanced voltage supply was diagnosed through rotor harmonics based on the formulation. While in the other method, the unbalanced asymmetry was detected through signal processing, symbolic time series analysis and D-Markov state transition. The proposed methods also distinguish motor operation under balanced and unbalanced voltage supply. In the proposed work, hardware setup was designed for experimental verification. For validation of the methods, experimental setup was designed to justify and distinguish the motor operating under balanced and unbalanced voltage supply.
{"title":"Effect of Unbalanced Voltage Supply Diagnosis Through Rotor Harmonics Signature and State Transitions","authors":"M. Sheikh, N. M. Nor, T. Ibrahim","doi":"10.1109/PECON.2016.7951621","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951621","url":null,"abstract":"Induction motor is a workhorse in industrial system and it poses a great challenge for the fault detection scheme due to large and complex data processing. Induction motor fault can lead to huge losses and excessive downtimes with regards to maintenance and production. An external fault like unbalanced voltages supply could be much severed and result in excessive losses, mechanical oscillations, over-voltage, and interference with control electronics. Detection of an abnormality like unbalanced voltage supply is a challenging task in the interaction of electrical motor and the power grid. In this paper, two new methods are presented to diagnose unbalanced voltage supply at the incipient stage. In first method, a new approach is introduced to formulate the total number of winding turns associated with a particular slot. After the formulation, the unbalanced voltage supply was diagnosed through rotor harmonics based on the formulation. While in the other method, the unbalanced asymmetry was detected through signal processing, symbolic time series analysis and D-Markov state transition. The proposed methods also distinguish motor operation under balanced and unbalanced voltage supply. In the proposed work, hardware setup was designed for experimental verification. For validation of the methods, experimental setup was designed to justify and distinguish the motor operating under balanced and unbalanced voltage supply.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122783484","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951672
Tekumatla Shivakumar, M. S. Sravan, K. Selvajyothi
This paper discusses on an open source python based three-axis CNC system. Python being one of the easiest languages to understand exempts the user from requiring extreme programming skills to amend the code for personal use. This paper features a novel way of directly importing the CAD file into the system without the use of any G-code parser. This system is economical as it utilizes Arduino UNO board as a signal generator without compromising on the performance of the system.
{"title":"Python based 3-Axis CNC plotter","authors":"Tekumatla Shivakumar, M. S. Sravan, K. Selvajyothi","doi":"10.1109/PECON.2016.7951672","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951672","url":null,"abstract":"This paper discusses on an open source python based three-axis CNC system. Python being one of the easiest languages to understand exempts the user from requiring extreme programming skills to amend the code for personal use. This paper features a novel way of directly importing the CAD file into the system without the use of any G-code parser. This system is economical as it utilizes Arduino UNO board as a signal generator without compromising on the performance of the system.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131599550","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951541
M. Moghaddam, M. R. Langeroudi, B. Alizadeh
The electricity market with open access enables participants to gain more profit out of the bidding strategy. Every supplier tries to maximize its profit as a player in the market. The decision-making process of suppliers and their mutual performance in the market is a complicated problem, can be studied by modeling single-generator and multi-generator companies. The present paper proposes a model based on the reinforcement learning algorithm, is capable of making decisions for suppliers in the single — generator and multi-generator states on proposing a bidding strategy and simulating market outputs based on mutual actions. Hence, a comparison has carried out to examine the performances of generators in the single-generator and multi-generator states without considering constraints and by considering the effect of network constraints, which can impose considerable limitations on electricity markets. The market clearing mechanism is based on Pay As Bid (PAB) model, can be used to define the optimal bidding strategy for each supplier, find market balance and assess market performance. The proposed model has applied to the Nord Pool market and its effect has indicated.
开放接入的电力市场可以使参与者从竞价策略中获得更多的利润。作为市场的参与者，每个供应商都试图使自己的利润最大化。供应商的决策过程及其在市场中的相互绩效是一个复杂的问题，可以通过对单机和多机公司的建模来研究。本文提出了一种基于强化学习算法的模型，能够在单机和多机状态下对供应商提出投标策略进行决策，并基于相互作用模拟市场产出。因此，在不考虑约束和考虑网络约束影响的情况下，对单机和多机状态下的发电机性能进行了比较，因为网络约束会对电力市场造成相当大的限制。市场出清机制基于PAB (Pay As Bid)模型，可用于确定各供应商的最优投标策略，寻找市场平衡，评估市场绩效。该模型已应用于北池市场，并取得了较好的效果。
{"title":"Optimal bidding strategy for GENCOs using reinforcement learning process based on the PAB model","authors":"M. Moghaddam, M. R. Langeroudi, B. Alizadeh","doi":"10.1109/PECON.2016.7951541","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951541","url":null,"abstract":"The electricity market with open access enables participants to gain more profit out of the bidding strategy. Every supplier tries to maximize its profit as a player in the market. The decision-making process of suppliers and their mutual performance in the market is a complicated problem, can be studied by modeling single-generator and multi-generator companies. The present paper proposes a model based on the reinforcement learning algorithm, is capable of making decisions for suppliers in the single — generator and multi-generator states on proposing a bidding strategy and simulating market outputs based on mutual actions. Hence, a comparison has carried out to examine the performances of generators in the single-generator and multi-generator states without considering constraints and by considering the effect of network constraints, which can impose considerable limitations on electricity markets. The market clearing mechanism is based on Pay As Bid (PAB) model, can be used to define the optimal bidding strategy for each supplier, find market balance and assess market performance. The proposed model has applied to the Nord Pool market and its effect has indicated.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134414469","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951567
Gibson Sianipar
This paper presents a new method of calculating transient short circuit current in a large multi-machine power system that is numerically efficient, accurate and stable. The proposed methodology is based on network reduction that finds a minimally equivalent network, retaining buses where the machines and the fault are located, upon which the simulation is carried out. With a much reduced network the computation speed-up is huge. The new method also proposes working in dq0 domain either for the machines or the network components both in their individual model and in their integration as a system all throughout the computation stages. Besides saving the storages it gives a stable and accurate simulation.
{"title":"Transient short circuit current calculation using reduced and decoupled DQ0 networks","authors":"Gibson Sianipar","doi":"10.1109/PECON.2016.7951567","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951567","url":null,"abstract":"This paper presents a new method of calculating transient short circuit current in a large multi-machine power system that is numerically efficient, accurate and stable. The proposed methodology is based on network reduction that finds a minimally equivalent network, retaining buses where the machines and the fault are located, upon which the simulation is carried out. With a much reduced network the computation speed-up is huge. The new method also proposes working in dq0 domain either for the machines or the network components both in their individual model and in their integration as a system all throughout the computation stages. Besides saving the storages it gives a stable and accurate simulation.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134485544","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951557
M. Talib, Z. Ibrahim, Z. Rasin, J. M. Lazi, S. S. M. Isa
This paper presents the simplified self tuning Fuzzy Logic Speed Controller (FLSC) with output scaling factor tuner for Induction Motor Drive. In general, self tuning mechanism is able to improve the drive performance. However, implementing fuzzy self-tuning mechanism will increase the complexity of the control algorithm. The number of rules will significantly affect the computation time and memory space requirement. Thus, this paper proposes a simplified rules for the self-tuning (ST) FLSC. The proposed system controller consists of ST-FLSC with less number of rules. The drive system utilizes the indirect Field Oriented Control (FOC) fed by Space Vector Pulse Width Modulation method. The ST-FLSC is compared with the constant parameter (CP)-FLSC. The simulation results indicate the improvement in term of rise time and settling time at low, medium and high speed operation as well as during load disturbance. With less number of rules, the complexity of the controller algorithm is minimized and will provide a great advantage for the hardware implementation.
{"title":"Simplified self-tuning Fuzzy Logic Speed controller for induction motor drive","authors":"M. Talib, Z. Ibrahim, Z. Rasin, J. M. Lazi, S. S. M. Isa","doi":"10.1109/PECON.2016.7951557","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951557","url":null,"abstract":"This paper presents the simplified self tuning Fuzzy Logic Speed Controller (FLSC) with output scaling factor tuner for Induction Motor Drive. In general, self tuning mechanism is able to improve the drive performance. However, implementing fuzzy self-tuning mechanism will increase the complexity of the control algorithm. The number of rules will significantly affect the computation time and memory space requirement. Thus, this paper proposes a simplified rules for the self-tuning (ST) FLSC. The proposed system controller consists of ST-FLSC with less number of rules. The drive system utilizes the indirect Field Oriented Control (FOC) fed by Space Vector Pulse Width Modulation method. The ST-FLSC is compared with the constant parameter (CP)-FLSC. The simulation results indicate the improvement in term of rise time and settling time at low, medium and high speed operation as well as during load disturbance. With less number of rules, the complexity of the controller algorithm is minimized and will provide a great advantage for the hardware implementation.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134486354","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951618
E. Rashad
The wound-rotor induction machine is capable of electromechanical energy conversion, if the stator and rotor windings are connected in series with a proper phase sequence. As a motor, the operation can be in one of two modes. In the first mode, the motor runs at exactly twice the synchronous speed for stable loading conditions. In the second mode, the motor runs at a speed below the synchronous speed (sub-synchronous) with self-starting capability in a manner similar to that of the normal operation mode as an induction motor. In this paper, the operation of the motor in the sub-synchronous mode is analyzed using the physical relationships between the stator and rotor mmfs. The analysis includes the calculation of losses and efficiency. The obtained laboratory experimental results proved the validity of the proposed analysis.
{"title":"Theory and steady-state analysis of series-connected wound-rotor induction motor in sub-synchronous mode","authors":"E. Rashad","doi":"10.1109/PECON.2016.7951618","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951618","url":null,"abstract":"The wound-rotor induction machine is capable of electromechanical energy conversion, if the stator and rotor windings are connected in series with a proper phase sequence. As a motor, the operation can be in one of two modes. In the first mode, the motor runs at exactly twice the synchronous speed for stable loading conditions. In the second mode, the motor runs at a speed below the synchronous speed (sub-synchronous) with self-starting capability in a manner similar to that of the normal operation mode as an induction motor. In this paper, the operation of the motor in the sub-synchronous mode is analyzed using the physical relationships between the stator and rotor mmfs. The analysis includes the calculation of losses and efficiency. The obtained laboratory experimental results proved the validity of the proposed analysis.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133868263","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951583
M. S. Kamarudin, H. Zainuddin, A. Haddad, R. Abd-Rahman, N. H. Radzi, A. Ponniran, A. Zahari
A new test rig has been developed specifically for gas research work, which includes a pressure chamber, control measures, and a recovery system of the gas. The air-tight pressure chamber was designed and tested to withstand pressures of up to 5 bar (abs). Through help from a reliable sealing gland, wires were passed through the pressurized gas inside the vessel to the outside to provide a means of controlling the gap length of the electrodes, without the need of removing the gas. Other control measures include humidity, temperature, and pressure readings. The humidity and temperature are read wirelessly and from the readings, the necessary atmospheric corrections can be made according to standards. Safety measures are equally important and were achieved by using a pressure relief valve. The valve is set to release the gas at 6 bar. A recovery system of the gas mixture was used so that after each test, the gas was properly stored in cylinder bottles and not being released into the atmosphere. As it is important to study the ‘deteriorated’ gas for future works, this recovery process provided a means of obtaining the deteriorated gas to be investigated. From initial tests on air breakdown, it was found that U50 increases with pressure. Rod-plane configuration provides lowest U50 values due to its electrode geometry, followed by R12-plane and plane-plane configurations.
{"title":"Purpose-built test rig for gas insulation breakdown tests under lightning impulse","authors":"M. S. Kamarudin, H. Zainuddin, A. Haddad, R. Abd-Rahman, N. H. Radzi, A. Ponniran, A. Zahari","doi":"10.1109/PECON.2016.7951583","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951583","url":null,"abstract":"A new test rig has been developed specifically for gas research work, which includes a pressure chamber, control measures, and a recovery system of the gas. The air-tight pressure chamber was designed and tested to withstand pressures of up to 5 bar (abs). Through help from a reliable sealing gland, wires were passed through the pressurized gas inside the vessel to the outside to provide a means of controlling the gap length of the electrodes, without the need of removing the gas. Other control measures include humidity, temperature, and pressure readings. The humidity and temperature are read wirelessly and from the readings, the necessary atmospheric corrections can be made according to standards. Safety measures are equally important and were achieved by using a pressure relief valve. The valve is set to release the gas at 6 bar. A recovery system of the gas mixture was used so that after each test, the gas was properly stored in cylinder bottles and not being released into the atmosphere. As it is important to study the ‘deteriorated’ gas for future works, this recovery process provided a means of obtaining the deteriorated gas to be investigated. From initial tests on air breakdown, it was found that U50 increases with pressure. Rod-plane configuration provides lowest U50 values due to its electrode geometry, followed by R12-plane and plane-plane configurations.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130349002","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 : 2016-11-01DOI: 10.1109/PECON.2016.7951608
June-Hee Lee, June-Seok Lee, Kyo-Beum Lee
This paper presents the switch-fault detection method in a cascaded H-bridge multilevel inverter (CHBMI). When the open-fault occurred on the H-bridge inverter switch of single-phase CHBMI, the body diode of fault switch can provide a freewheeling current path. However, the output current distortion of short-fault is different from that of the open-fault because disconnection of fuse cannot provide a freewheeling current path. The fault detection method is based on the zero current time analysis according to zero-voltage switching states. The proposed method is available in the rotating level-shifted pulse width modulation (RLS-PWM) method. Using the proposed method, it is possible to detect not only the fault location of cell but the fault location of switch accurately. The PSIM simulation results show the effectiveness of proposed fault detection method.
{"title":"A fault detection method in cascaded H-bridge multilevel inverter","authors":"June-Hee Lee, June-Seok Lee, Kyo-Beum Lee","doi":"10.1109/PECON.2016.7951608","DOIUrl":"https://doi.org/10.1109/PECON.2016.7951608","url":null,"abstract":"This paper presents the switch-fault detection method in a cascaded H-bridge multilevel inverter (CHBMI). When the open-fault occurred on the H-bridge inverter switch of single-phase CHBMI, the body diode of fault switch can provide a freewheeling current path. However, the output current distortion of short-fault is different from that of the open-fault because disconnection of fuse cannot provide a freewheeling current path. The fault detection method is based on the zero current time analysis according to zero-voltage switching states. The proposed method is available in the rotating level-shifted pulse width modulation (RLS-PWM) method. Using the proposed method, it is possible to detect not only the fault location of cell but the fault location of switch accurately. The PSIM simulation results show the effectiveness of proposed fault detection method.","PeriodicalId":259969,"journal":{"name":"2016 IEEE International Conference on Power and Energy (PECon)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116727879","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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