共查询到18条相似文献,搜索用时 62 毫秒
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55/11kW风力发电机的并网过程分析与控制 总被引:2,自引:0,他引:2
对不同风况下风力发电机的并网过程进行了分析,并提出相应的并/脱电网控制策略。利用该控制策略。可减少大、小发换次数,减少并网冲击,提高发电量。 相似文献
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目前在英国,家用小型风力发电机已经非常普遍,各大建材商店都有售。而且英国保守党领袖戴维·卡梅伦也宣称要在他家房顶上装一台,成为该技术最有力的支持者。家用风力发电机的工作原理与大型风力发电机一样,只是发电功率较小。一台家用风力发电机一年能够发电约1000kWh,在地形条件好的地方能发电1500kWh。这能够满足普通家庭所需电量的三分之一。风力发电的电量与风速有关,所以一个地区的平均风速是重要因素。 相似文献
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研究了大中型风力发电机的可靠性设计,讨论了动态规则对可靠性的分配,专题研究了疲劳和断裂,磨损,控制系统,软件的可靠性设计。提出了对大中型风力发电机的可靠性试验进行计算机模拟仿真,并与可靠性计算机辅助设计结合起来,以提高可靠性设计的水平。 相似文献
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The collection and analysis of 15 months of continuously recorded field data from a small remote wind–diesel power system at a coastal farm site are reported. The paper focuses on the available wind data and the performance of the 10 kW Bergey wind turbine. 相似文献
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In the present work, the aerodynamic performance prediction of a unique 30 kW counter-rotating (C/R) wind turbine system, which consists of the main rotor and the auxiliary rotor, has been investigated by using the quasi-steady strip theory. The near wake behavior of the auxiliary rotor that is located upwind of the main rotor is taken into consideration in the performance analysis of the turbine system by using the wind tunnel test data obtained for scaled model rotors. The relative size and the optimum placement of the two rotors are investigated through use of the momentum theory combined with the experimental wake model. In addition, the performance prediction results along with the full-scale field test data obtained for C/R wind turbine system are compared with those of the conventional single rotor system and demonstrated the effectiveness of the current C/R turbine system. 相似文献
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As the use of wind power has steadily increased, the importance of a condition monitoring and fault diagnosis system is being emphasized to maximize the availability and reliability of wind turbines. To develop novel algorithms for fault detection and lifespan estimation, a wind turbine simulator is indispensible for verification of the proposed algorithms before introducing them into a health monitoring and integrity diagnosis system. In this paper, a new type of simulator is proposed to develop and verify advanced diagnosis algorithms. The simulator adopts a torque control method for a motor and inverter to realize variable speed-variable pitch control strategies. Unlike conventional motor–generator configurations, the simulator includes several kinds of components and a variety of sensors. Specifically, it has similarity to a 3 MW wind turbine, thereby being able to acquire a state of operation that closely resembles that of the actual 3 MW wind turbine operated at various wind conditions. This paper presents the design method for the simulator and its control logic. The experimental comparison between the behavior of the simulator and that of a wind turbine shows that the proposed control logic performs successfully and the dynamic behaviors of the simulator have similar trends as those of the wind turbine. 相似文献