{"title":"Real-time simulation on wind power system dynamics incorporating STATCOM","authors":"Yue Zhao, Libao Shi, L. Yao","doi":"10.1109/APPEEC.2013.6837210","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837210","url":null,"abstract":"Based on an advanced distributed real-time platform named Real-Time Laboratory (RT-LAB), the impacts of the static synchronous compensator (STATCOM) on wind power system dynamics is studied in this paper. Firstly, a small-scale wind farm model based on squirrel-cage induction generator (SCIG) is built in MATLABTM/Simulink environment. This model is then rebuilt to be suitable for the real-time operation mode in RT-LAB environment in terms of the operating requirements of RT-LAB. The corresponding comparisons of simulation results carried out in RT-LAB and MATLABTM/Simulink environments respectively demonstrate that it is applicable for wind power system to implement real-time simulation in RT-LAB environment. Finally, the STATCOM device is connected to the power grid. And the comparisons of real-time simulation results of the wind power system with and without STATCOM connected illustrate that the integration of STATCOM can improve the voltage stability of the system.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128674603","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":"Analysis of doubly fed induction generator dynamic action to power angle oscillation","authors":"Zihua Niu, Gengyin Li, Ming Zhou, Junqiang Wei","doi":"10.1109/APPEEC.2013.6837133","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837133","url":null,"abstract":"In this paper, first, according to small signal stability theory, the sum of damping in all oscillation modes is proved to be increased after doubly fed induction generator (DFIG) integration. Second, based on complex torque, the damping mechanism of DFIG to synchronous system is clarified in the sense of torque, pointing out that the magnitude and phase of damping torque offered by the DFIG is significantly affected by its excitation control parameters. Third, synchronous system power angle oscillation is proved to appear when the frequency of the wind speed disturbance is consistent with or close to dual synchronous machine - single DFIG (DSMSD) system oscillation frequency.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130594483","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}
Qiuwei Wu, Lin Cheng, Ulysse Pineau, A. Nielsen, J. Ostergaard
{"title":"Impact and cost evaluation of electric vehicle integration on medium voltage distribution networks","authors":"Qiuwei Wu, Lin Cheng, Ulysse Pineau, A. Nielsen, J. Ostergaard","doi":"10.1109/APPEEC.2013.6837116","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837116","url":null,"abstract":"This paper presents the analysis of the impact of electric vehicle (EV) integration on medium voltage (MV) distribution networks and the cost evaluation of replacing the overloaded grid components. A number of EV charging scenarios have been studied. A 10 kV grid from the Bornholm Island in the city area has been used to carry out case studies. The case study results show that the secondary transformers are the bottleneck of the MV distribution networks and the increase of EV penetration leads to the overloading of secondary transformers. The cost of the transformer replacement has been evaluated. The transformer replacement cost reaches 72% of the total transformers value with 50% EV penetration and 3 Phase charging.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130612526","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 research for distribution of reserve with large scale wind power connecting into system","authors":"Wei Wang, Huaisen Jia, Xiaodong Pang, Jia-yu Fu, Junyong Liu, Xia Li","doi":"10.1109/APPEEC.2013.6837228","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837228","url":null,"abstract":"Traditional energy-saving dispatching is easy to cause spinning reserve centralized distribution, leding to the increase of reserve insecurity. And, it ignores the influence that reserve makes on the target coal consumption. To solve this problem, we Consider wind power, load forecasting error cases, lead into coal saving benefit, as well as power grid loss factor. The integrated goal include unit coal consumption and coal conversion. in order to the reliability of the system, introducing risk indicator, as a constraint, it constructs the model in certain risk situations of optimal reserve distribution. IEEE-RTS24 system was used as numerical cases. Research in the different risk limits required reserve capacity and system coal consumption. Analyze the impact of different factors the system coal consumption and the reserve capacity, As well as certain risk limits on each unit distribution of reserve capacity.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123921341","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 prediction technique of power transformer condition assessment via DGA parameters","authors":"J. Haema, R. Phadungthin","doi":"10.1109/APPEEC.2013.6837171","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837171","url":null,"abstract":"This dissolved gas analysis is the most important tool for determining the condition of power transformer. It is the first indicator of a problem and can identify deterioration of the insulating such as overheating, hot spot, partial discharge and arcing. Therefore, this paper presents a prediction technique of power transformer condition assessment, by using DGA parameters in the analysis. The key gas parameters include hydrogen (H2), methane (CH4), acetylene (C2H2), ethane (C2H6), carbon monoxide (CO) and carbon dioxide (CO2). The historical test results of the dissolved gas analysis of power transformers rated 115/22 kV 50 MVA analyzed as an example. There are two procedures used in the condition assessment; one is total dissolved combustible gas while the other is key gas. Firstly, the total dissolved combustible gas is considered. Next, the key gas is utilized for specify the incipient faults. Finally, the known condition can be used to plan appropriate maintenance effectively in the utility. This results in higher system reliability and longer useful lifetime of the power transformer.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116482632","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}
S. Makonin, William Sung, Ryan Dela Cruz, Brett Yarrow, Bob Gill, F. Popowich, I. Bajić
{"title":"Inspiring energy conservation through open source metering hardware and embedded real-time load disaggregation","authors":"S. Makonin, William Sung, Ryan Dela Cruz, Brett Yarrow, Bob Gill, F. Popowich, I. Bajić","doi":"10.1109/APPEEC.2013.6837120","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837120","url":null,"abstract":"Utility companies around the world are replacing electro-mechanical power meters with new smart meters. These digital power meters have enhanced communication capabilities, but they are not actually smart. We present the cognitive power meter (c-meter), a meter that is actually smart. By using load disaggregation intelligence, c-meter is the realization of demand response and other smart grid energy conservation initiatives. Our c-meter is made of two key components: a prototype open source ammeter and an optimized embedded load disaggregation algorithm (μDisagg). Additionally, we provide an open source multi-circuit ammeter array that can build probabilistic appliance (or load) consumption models that are used by the c-meter. μDisagg is the first load disaggregation algorithm to be implemented on an inexpensive low-power embedded processor that runs in real-time using a typical/basic smart meter measurement (current, in A). μDisagg can disaggregate loads with complex power states with a high degree of accuracy.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114029467","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":"Carbon reduction impact simulation of cross-region power transmission in China","authors":"Lu Xing, Quan Wen, B. Shan","doi":"10.1109/APPEEC.2013.6837299","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837299","url":null,"abstract":"As the main emitter of CO2, power sector is becoming the primary focus for carbon reduction. However, existing researches mainly focus on power generation side, for example, renewable energies and nuclear, the role grid plays is often ignored. This paper assesses carbon reduction impact of cross-region power transmission in China by establishing a multiregion Integrated Resource Strategic Planning (IRSP) Model, together with scenarios analysis. This paper firstly introduced the IRSP Model based on Efficiency Power Plants; secondly, improved it into a multi-region model which could reflect the role grid played in the system; thirdly, established two scenarios with aggressive renewable development goals and different cross-region transmission capacities, comparing the simulation results of the two scenarios to find its impact on carbon reduction and power sector development; finally, assessment of its impact on power generation capacity and distribution, carbon reduction potential and cost is concluded.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128067679","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":"Modeling of a central heating electric boiler integrated with a stand-alone wind generator","authors":"X. Jiang, Z. Jing, Q. Wu, T. Ji","doi":"10.1109/APPEEC.2013.6837268","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837268","url":null,"abstract":"This paper proposes a model of a central heating electric boiler integrated with a stand-alone wind generator. The paper also investigates control schemes for the wind turbine generator and the electric boiler. For the wind turbine generator, the two control schemes are proposed for control of the pitch angle and generator rotor speed respectively. The pitch angle control uses the generator output power as the input signal to ensure normal operation in high wind speed. The speed control is realized by adjusting the resistive load to trace the maximum output power. For the boiler, the temperature control is used to regulate the outlet water temperature by changing the electric power obtained from the power grid. In order to verify the proposed model and control schemes, simulation studies have been conducted using MATLAB/Simulink. Simulation results demonstrate that the wind turbine generator can trace the maximum power in the low and medium wind speeds and operate at the rated output in the high wind speeds, with the help of the proposed control schemes. It is also proved that the outlet water temperature of the boiler can be regulated by its temperature controller according to a set point.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121784212","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":"Generic SPWM technique for multilevel inverter","authors":"S. Vadhiraj, K. N. Swamy, B. Divakar","doi":"10.1109/APPEEC.2013.6837117","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837117","url":null,"abstract":"Multilevel inverters generate stepped AC signals and thus overcome many of the limitations with the classical inverter circuit. Multilevel inverters use many number of switches and generate staircase type output through controlled switching of various switches. The sequence of switching and the duration of each step are very vital in minimizing the THD. The methods of generating gating signals are not unique. Many methods that are proposed in literatures make use of SPWM technique. Sinusoidal Pulse Width Modulation (SPWM) is a popular control method widely used in power electronic inverter circuit. It has advantages like low switching losses, the output has fewer harmonic and method is easy to implement. The different SPWM methods are: (A) Phase Disposition PWM (PDPWM), (B) Phase Opposition Disposition PWM (PODPWM), (C) Alternative Opposition and Disposition PWM (APODPWM), (D) Phase Shift PWM (PSPWM), (E) Carrier Overlapping PWM (COPWM) and (F) Multi Carrier Sinusoidal Pulse Width Modulation with Variable Frequency (MCSPWMVF). All the above methods make use of many triangular signals, that are level shifted or phase shifted, and compare with a single sine wave to generate gating signals for the respective switches. The intersection of the sine signal with the various triangular signals will generate the gating signals for the respective switches. In the present investigation a generalized gating signal generation method is proposed using only one modulating and one carrier signal. The signal so generated is steered into various switches through pulse steering circuit developed in the present work.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115808152","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":"Strategies of residential peak shaving with integration of demand response and V2H","authors":"Long Zhao, V. Aravinthan","doi":"10.1109/APPEEC.2013.6837260","DOIUrl":"https://doi.org/10.1109/APPEEC.2013.6837260","url":null,"abstract":"Plug-in electric vehicles (PEVs) have the potential to be used as storage devices to mitigate some of the grid level impacts, especially at the residential level. Since primary usage of electric vehicle battery is for transportation, it is important to optimize the life of the battery and energy discharge to the grid (V2G). The smart grid initiative requires active consumer participation through demand side management. Proper V2G application combined with demand response (DR) could improve some of the system level concerns such as peak shaving and flexible loading. This work proposes a vehicle-to-house (V2H) charge management based on demand side management scheme to minimize the peak loading at each individual house using a model based control design. GridLab-D is used to evaluate the model which shows such a scheme has the potential to reduce the peak.","PeriodicalId":330524,"journal":{"name":"2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132029435","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}