风速风向测量误差补偿算法的研究

Research on error compensation algorithm for wind speed and direction measurement

为了提高风帆助力船舶中风速风向的测量精度,提出一种基于空间模型的风速风向测量误差补偿算法。首先建立了船舶运动状态下风速风向矢量的空间模型。在应用超声波风速风向测量技术的基础上,通过空间测量的方法确定测量误差与空间倾角的对应关系,并对测量误差进行单向拟合补偿计算和空间拟合补偿计算。最后,经过大量的实验和测量数据的对比,验证了基于空间模型误差补偿算法的有效性和可行性。从而解决了一类风帆助力船舶辅助推进控制系统的风速风向空间测量的误差补偿问题,使得风速风向测量精度满足风帆辅助推进控制系统的要求。

In order to improve the measurement accuracy of wind speed and direction for sail-assisted ship, an error compensation algorithm for wind speed and direction measurement based on spatial model is proposed. Firstly, the spatial model of wind speed and direction vector is established under ship moving condition. Based on the application of ultrasonic wind speed and direction measurement technology, the relationship between spatial inclination angles and measurement error is determined with the method of spatial measurement; and the measurement error is calculat- ed using unidirectional fitting compensation and spatial fitting compensation. Finally, large amount of experiments and measurement data comparison verify the effectiveness and feasibility of the error compensation algorithm based on spatial model. Thus,the error compensation problem of wind speed and direction spatial measurement for a kind of sail-assisted ship propulsion control system is solved;and the wind speed and direction measurement accuracy meets the requirements of sail-assisted propulsion control system.