Evaluation of Electromechanical Systems Dynamically Emulating a Candidate Hydrokinetic Turbine
Evaluation of Electromechanical Systems Dynamically Emulating a Candidate Hydrokinetic Turbine
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机电系统动态仿真候选水力涡轮机的评估
DOI：
10.1109/tste.2015.2492943
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发表时间：
2016
影响因子：
8.8
通讯作者：
J. Rea
中科院分区：
文献类型：
--
作者：
Robert J. Cavagnaro;J. Neely;F. Fay;Joseba Lopez Mendia;J. Rea
探讨了在可控电动发电机组或机电仿真机（EEM）上对特定流体动力涡轮机进行硬件在环测试的意义。仿真器控制动态方程，缩放涡轮机参数的方法进行了开发和评估，并从三个EEM编程仿真相同的垂直轴固定桨距涡轮机的实验结果。虽然硬件平台和控制实现方式各不相同，但结果表明，每个EEM都成功地模拟了不同功率水平的涡轮机模型，从而证明了该方法的一般可行性。然而，在转矩指令、电流指令或速度指令下的电动机控制的性能不同。在用于评估流体动力涡轮机实施的EEM的预期用途的演示中，动力输出控制器响应于湍流跟踪涡轮机的最大动力点。利用现实的流入条件和控制律，仿真器动态速度响应在低频与数值模拟吻合良好，但在高频偏离。
Implications of conducting hardware-in-the-loop testing of a specific hydrokinetic turbine on controllable motor-generator sets or electromechanical emulation machines (EEMs)are explored. The emulator control dynamic equations are presented, methods for scaling turbine parameters are developed and evaluated, and experimental results are presented from three EEMs programmed to emulate the same vertical-axis fixed-pitch turbine. Although hardware platforms and control implementations varied, results show that each EEM is successful in emulating the turbine model at different power levels, thus demonstrating the general feasibility of the approach. However, performance of motor control under torque command, current command, or speed command differed. In a demonstration of the intended use of an EEM for evaluating a hydrokinetic turbine implementation, a power takeoff controller tracks the maximum power-point of the turbine in response to turbulence. Utilizing realistic inflow conditions and control laws, the emulator dynamic speed response is shown to agree well at low frequencies with numerical simulation but to deviate at high frequencies.