2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications最新文献_第2页

Wind turbine level energy storage for low voltage ride through (LVRT) support 风电机组级低电压穿越储能(LVRT)支持

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912233

A. Yousef, A. Nasiri, Omar Abdelbaqi

{"title":"Wind turbine level energy storage for low voltage ride through (LVRT) support","authors":"A. Yousef, A. Nasiri, Omar Abdelbaqi","doi":"10.1109/PEMWA.2014.6912233","DOIUrl":"https://doi.org/10.1109/PEMWA.2014.6912233","url":null,"abstract":"Variable wind speed leads to variable wind power generation, voltage fluctuations, and frequency deviations, which are the main problems related to wind energy integration into a grid. These problems become more evident in weak grids. In addition, wind farms have to take the grid problems into consideration and have to provide support during grid instability and transients. In this paper, a Permanent Magnet Synchronous Generator (PMSG) wind turbine full energy conversion system design and modeling have been performed using Matlab Simulink. The system is grid integrated and applies Maximum Power Point Tracking (MPPT) control to extract the maximum power from the wind and utilizes full conversion circuitry to interface the unregulated generator AC power to the grid. Modules of Lithium-Ion Capacitors (LIC) have been placed on the DC bus in order to support the grid with wind energy, power smoothing and Low Voltage Ride Through (LVRT). LICs offer high power density and reasonable energy density. During grid faults, wind energy can be stored in the LICs and discharged into the grid as soon as the voltage is restored. This feature will support the grid to stabilize the voltage. Detailed modeling of the architecture and controls has been performed to verify the viability of the proposed system.","PeriodicalId":370712,"journal":{"name":"2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121114596","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}

引用次数: 5

Droop assignment algorithm for the inertial control of a DFIG-based wind power plant for supporting the grid frequency 基于dfig的风电场支持电网频率惯性控制的下垂分配算法

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912223

J. Lee, Y. Kang, E. Muljadi, P. Sørensen

{"title":"Droop assignment algorithm for the inertial control of a DFIG-based wind power plant for supporting the grid frequency","authors":"J. Lee, Y. Kang, E. Muljadi, P. Sørensen","doi":"10.1109/PEMWA.2014.6912223","DOIUrl":"https://doi.org/10.1109/PEMWA.2014.6912223","url":null,"abstract":"In a wind power plant (WPP) consisting of multiple wind generators (WGs), the wind speed of WGs at the downstream side decreases due to the wake effect, and thus their rotor speeds are smaller than those of the upstream WGs because of an MPPT operation. Therefore, WGs in a WPP have different amount of the kinetic energy stored in their rotating masses. This paper proposes a droop assignment algorithm for the inertial control of a doubly-fed induction generator-based WPP to support the grid frequency during the large disturbance. This paper assumes that a WG in the WPP has two supplementary loops for the inertial control, i.e. the frequency deviation loop and the rate of change of frequency (ROCOF) loop. In order to give more contribution on supporting the frequency stability by temporarily releasing more kinetic energy, the proposed algorithm assigns the droop of each WG depending on the rotor speed, while the same gains of the ROCOF loop are set for all WGs. In addition, the wake wind speed arriving at the WG is calculated by considering the wind direction and cumulative impacts of multiple shadowing. The performance of the algorithm was investigated under various wind conditions using an EMTP simulator. The results clearly indicate that the algorithm successfully improves the frequency nadir because WGs with higher wind speeds temporarily releases more kinetic energy.","PeriodicalId":370712,"journal":{"name":"2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385865","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}

引用次数: 5

Power semiconductor lifetime estimation considering dynamics of wind turbine 考虑风力发电机动力学的功率半导体寿命估计

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912226

E. Baygildina, L. Smirnova, P. Peltoniemi, O. Pyrhönen, Ke Ma

引用次数: 6

Wind turbine drivetrain for direct MVDC connection 用于直接MVDC连接的风力涡轮机传动系统

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912231

J. Carr, Jun Li, D. Das, Jiuping Pan

引用次数: 0

Optimum design of medium-voltage DC collector grids depending on the offshore-wind-park power 海上风电场中压直流集电电网优化设计

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912218

M. Stieneker, Benedict J. Mortimer, Nurhan Rizqy Averous, H. Stagge, R. D. De Doncker

引用次数: 18

Oscillation damping: A comparison of wind and photovoltaic power plant capabilities 振荡阻尼:风力和光伏电站能力的比较

2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications Pub Date : 2014-07-24 DOI: 10.1109/PEMWA.2014.6912216

M. Singh, A. Allen, E. Muljadi, V. Gevorgian

{"title":"Oscillation damping: A comparison of wind and photovoltaic power plant capabilities","authors":"M. Singh, A. Allen, E. Muljadi, V. Gevorgian","doi":"10.1109/PEMWA.2014.6912216","DOIUrl":"https://doi.org/10.1109/PEMWA.2014.6912216","url":null,"abstract":"This paper investigates the potential for wind power plants (WPPs) and photovoltaic power plants (PVPs) to damp inter-area oscillations. Inter-area oscillations may be the result of a single or a group of generators oscillating against another group of generators across a weak transmission link. If poorly damped, these power system oscillations can cause system instability and potentially lead to blackouts. Power conversion devices, particularly megawatt-scale converters that connect wind turbines and photovoltaic power plants to the grid, could be used to damp these oscillations by injecting power into the system out of phase with the potentially unstable mode. Over time, the net energy injection is near zero; therefore, providing this “static damping” capability is not expected to affect annual energy production. However, WPPs and PVPs have different capabilities due to the inherent physical nature of these plants. WPPs have some energy stored in the rotating masses of the turbines, while PVPs have no such stored energy. Thus the challenge of providing oscillation damping services will have to be approached differently for WPPs and PVPPs. In this work strategies for providing oscillation damping services from WPPs and PVPs are compared and contrasted. Kundur's well-known two-area, four-generator system is modeled in PSCAD/EMTDC. The WPP and PVP models are based on the Western Electricity Coordination Council (WECC) standard models. Controllers to damp inter-area oscillations are developed and added to the WECC WPP and PVP models, and their effects are studied. Analysis is performed on the data generated by the simulations.","PeriodicalId":370712,"journal":{"name":"2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121520310","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}

引用次数: 12