{"title":"A review on two different systems in municipal sewage treatment plant","authors":"N. Ramli, Mohd Fairuz Abdul Hamid","doi":"10.1109/CENCON.2017.8262485","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262485","url":null,"abstract":"The sewage treatment plant technology in Malaysia has evolved from pre-independence era of no treatment around 1950s to the pilot plant by adopting modern technology and start commissioning moving bed biofilm reactor around 2013. The existing mechanized compact sewage treatment plants were dominant by sequential batch reactor, intermittently decanted extended aeration and membrane bioreactor. The operator conducted continuous improvement project for conventional activated sludge system through energy management system to optimum the regional plant performance with the capacity up to 350,000 PE. The next step is to introduce energy audit for moving bed biofilm reactor at the same plant capacity category up to 300,000 PE. Hence, the aim of this research is to study the comparison of compactness footprint and baseline energy performance index. Based on this baseline energy performance index study, the operator has a potential to reduce the uncertain operation expenditure cost. The results from energy performance index showed that the moving bed biofilm reactor is more efficient compared to conventional activated sludge.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"429 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122867685","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}
Bazilah Ismail, Muhammad Mat Naain, N. Wahab, Nur Syahidah Mohd Shaberon, L. Awalin, Ibrahim Alhamrouni
{"title":"Voltage stability indices studies on optimal location of wind farm in distribution network","authors":"Bazilah Ismail, Muhammad Mat Naain, N. Wahab, Nur Syahidah Mohd Shaberon, L. Awalin, Ibrahim Alhamrouni","doi":"10.1109/CENCON.2017.8262468","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262468","url":null,"abstract":"The increasing demand for electrical power contributes major challenges especially in power utilities as one of the main issues is voltage instability. The voltage instability occur in both transmission and distribution network may weaken the whole operation of power system that will significantly limit the growth of load. As a result, voltage collapse blackout occurs in the power system whereas at this point the voltage become uncontrollable. The penetration of Wind Power Plant (WPP) in distribution system may be a good alternative to accommodate this challenge. However, the location of WPP play the important role to fully utilize the power generated by WPP that will not only improve the voltage stability margin but also reduce the power losses and enhance voltage profile. This paper presents the analysis for the selection of the optimal location of WPP integration from voltage stability, voltage profile and total system losses overview. The study was conducted using IEEE 30 Bus test system as the benchmark system and DigSILENT PowerFactory 16 as simulation tools.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116431003","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":"Adaptive sliding mode control of DFIG fed by matrix converter during grid faults","authors":"A. Alalei, M. Kermadi, A. Nesba, A. Hazzab","doi":"10.1109/CENCON.2017.8262472","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262472","url":null,"abstract":"The doubly fed induction generator (DFIG) is one of the mostly used options in variable-speed wind power generation. The present paper studies the transient behavior of the DFIG fed by a matrix converter during network voltage dips. The dynamic model used for the transient analysis of the DFIG during network disturbances is presented. Vector control strategy is used to ensure independent control of the active and reactive powers. In order to illustrate the behavior of the DFIG during network disturbances, a symmetrical voltage dip is applied to the DFIG stator terminals. This voltage dip is chosen within the limits set by the grid codes considered in the present paper. Simulation results showing large transient stator and rotor currents are presented and discussed. Finally, the mostly used technique to ensure a low voltage ride-through capability for the DFIG and to minimize the effects of grid disturbances on the generator is reviewed.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117282382","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 novel multiple-battery charger with flying-capacitor three-level converter and four-stage charging method for fast charging","authors":"Chih-Chiang Huacc, Hao-Yuan Lin","doi":"10.1109/CENCON.2017.8262455","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262455","url":null,"abstract":"To achieve charging multiple batteries at the same time, and grasp the charging mode transition timing accurately, this paper proposes a new charge method for multiple batteries which is a four-stage Li-ion battery charger with flying-capacitor three-level converter. Since three-level converter can generate multiple level voltages, the distortion of power source and electromagnetic interference (EMI) will be significantly reduced, and the voltage stress will also be decreased. By connecting batteries in parallel, it will easily monitor the charge voltage and current of every battery, and the charger realizes battery voltage balance by adjusting the voltage and current. The charging process adds pulse current mode. The charging mode transition timing could be grasped exactly since pulse current which will remove the effect of the parasitic resistor. Therefore, the total time will be reduced, and the overall charge speed will be faster.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117012433","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}
P. K. Maroti, S. Padmanaban, M. Bhaskar, F. Blaabjerg, V. Ramachandaramurthy, P. Siano, V. Fedák
{"title":"Multistage switched inductor boost converter for renewable energy application","authors":"P. K. Maroti, S. Padmanaban, M. Bhaskar, F. Blaabjerg, V. Ramachandaramurthy, P. Siano, V. Fedák","doi":"10.1109/CENCON.2017.8262504","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262504","url":null,"abstract":"In this paper Multistage Switched Inductor Boost Converter (Multistage SIBC) is uttered for renewable energy applications. The projected converter is derived from an amalgamation of the conventional step-up converter and inductor stack. The number of inductor and duty ratio decides the overall voltage gain of the projected converter. The projected converter consists of only one controlled power semiconductor device. The 50 KHz frequency is adopted to reduce the L, C value and to suppress the output waveform ripples. The analysis and working of projected converter is discussed in detail. Simulation of the projected converter for three stages is done in Matlab/Simulink (version-2016) and the results are verified with theoretical values.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329455","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":"Hybrid energy storage system for life cycle improvement","authors":"Hanis Farhah Jamahori, H. A. Rahman","doi":"10.1109/CENCON.2017.8262483","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262483","url":null,"abstract":"The major challenges of energy storage system (ESS) in power applications are its capability to deliver power to load for a longer time. Some might experiencing fully discharged condition while still in the state of delivering power to the load, which will cause the system to be interrupted and loss the energy supply. The best way to cater on this problem is through hybridization of ESS, where two or more storage system work together to give better performance and ensure longer discharge life cycle compared to a single storage. This paper presents the performance optimization of a single and hybrid battery storage system. Both systems were modelled and simulated in MATLAB/Simulink while the performance was measured in terms of the state of charge (SOC) of the battery, voltage and current delivered to the load. Overall result exhibited the advantages of utilising hybrid battery energy storage and also revealed that the improvement in extending the battery life cycle performance. Both simulation results are discussed and presented.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128367718","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":"Optimal placement of TCSC in transmission network using sensitivity based method for multi-objective optimization","authors":"N. A. Bakar, M. Desa","doi":"10.1109/CENCON.2017.8262484","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262484","url":null,"abstract":"Power system instability is a serious concern in the power industry. Even a temporary blackout and power outage can lead to the relative chaos, monetary setbacks and possible loss of life. In the electricity network, the power generation must be very close to equal every second as possible to the electrical load demand. Else, it will create overloading and congestion in network components which may cause severe damage technically as well as economically. It is crucial to have a power system network with high efficiency, maximum reliability and security in its design and operation. One of the recent electronics development is the introduction of Flexible AC Transmission System (FACTS) controllers in power system. This controller demonstrates its ability to control the power network in very efficient manner. Hence the features can be exploited to enhance the power system stability. This paper aims to study the effect of Thyristor Controlled Series Capacitor (TCSC) to mitigate the weakness of the transmission line by locating TCSC at the most sensitive line thru reactive power loss sensitivity indices approach. Multi-objective optimization which are mitigation of the line contingencies, total reactive power loss reduction and transmission line loadability on the tested modified IEEE small 5 bus network and large 14 bus network are presented. Apart from that, the effect of degree of compensation of TCSC was also covered. The investigation was carried out using MATLAB/MATPOWER 5.0 and Power World Simulator GSO 18. This study concludes that the proposed approach is efficient for solving line contingencies, power loss reduction and line loadability in transmission network.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123348687","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":"The effect of non-isothermal crystallization on the AC breakdown performance of polyethylene/silicon dioxide nanocomposites","authors":"S. Kamarudin, K. Y. Lau, W. Rahman","doi":"10.1109/CENCON.2017.8262493","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262493","url":null,"abstract":"Increasing demands in high voltage applications result in the need to design new electrical insulation systems. For this reason, polymer nanocomposites have recently been actively studied. In the dielectrics community, polymer nanocomposites refer to polymer matrices incorporating nanometer-sized fillers as a means for enhancing the dielectric properties. These materials were found to have a great capability in withstanding high voltage levels such as those required in high voltage alternating current (HVAC) and high voltage direct current (HVDC) applications. This paper reports on an investigation into polyethylene systems that contains different amounts of nanosilica with different non-isothermal crystallization processes. The non-isothermal crystallization techniques were determined by fast, medium and slow cooling rate conditions while preparing the samples. The thermal behavior of the polymer nanocomposites was characterized by differential scanning calorimetry. The breakdown results showed that the use of different non-isothermal crystallization techniques affected the breakdown strength of the same material type.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121844321","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. H. Ramlan, N. Azli, Hanifah Jambari, N. M. Nordin
{"title":"Interconnection and damping assignment passivity-based controller for cascaded H-bridge multilevel inverter","authors":"N. H. Ramlan, N. Azli, Hanifah Jambari, N. M. Nordin","doi":"10.1109/CENCON.2017.8262451","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262451","url":null,"abstract":"This paper presents an interconnection and damping assignment passivity-based controller (IDA-PBC) for Cascaded H-bridge Multilevel Inverter (CHMI). The main objective of this paper is to investigate the output voltage waveform regulation with low harmonic distortion. The circuit is modeled as a port-controlled Hamiltonian (PCH) system through average modeling. IDA-PBC is capable to regulate the voltage during various loading condition. The proposed control scheme is compared to the conventional double-loop PI controller and verified by detailed simulation analysis using MATLAB-Simulink software. Simulation results show that the proposed algorithm ensures fast response time and stability of the system during load change while maintaining low harmonic distortion.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122241689","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":"Improving flux regulation of DTC induction motor drive by modifying the index to the FPGA-based lookup table","authors":"A. Ajlan, N. Idris, S. Lee","doi":"10.1109/CENCON.2017.8262473","DOIUrl":"https://doi.org/10.1109/CENCON.2017.8262473","url":null,"abstract":"DTC is known for its fast torque response, robustness against parameter variation and simple implementation. The performance of DTC drive, however, deteriorates at low speed due to its poor flux regulation. This paper proposes a technique to improve the flux regulation, and it only requires minor changes to the index of the look-up table. With this method, the simple structure of the DTC is retained and the same look-up table can be used. Experimental results are presented to show the effectiveness and viability of the proposed method. It is shown that flux regulation at low speed is improved and rated flux can be established even at zero speed; improvement in the flux regulation significantly improves the torque dynamic.","PeriodicalId":275077,"journal":{"name":"2017 IEEE Conference on Energy Conversion (CENCON)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125882486","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}