可再生能源分布式发电系统能量互补控制的研究

为了解决可再生能源分布式发电系统的稳定性问题,在系统中加入了储能设备,使总线电压得到了平滑.介绍了可再生能源分布式发电系统的能量互补控制原理,并建立了能源分布式发电系统的数学模型.采用直接转矩控制算法对系统的能量互补控制过程进行了仿真实验,在系统的风机模拟器和飞轮上的仿真与实验结果表明当直流总线电压低于300V时,飞轮转速迅速下降,飞轮释放能量,系统维持稳定;当直流总线电压高于300V时,飞轮转速上升,飞轮存储能量,系统维持稳定.

Energy Complementary Control of a Distributed Renewable Energy Power Generation System

To ensure the stability of the distributed power generation system with renewable energy, the storage energy equipment for smoothing the bus voltage is designed, and an energy complementary control principle is proposed for this system to establish the mathematical model according to the energy complementary control principle. A direct torque control method is designed for improving the system performance. The simulative and experimental results on a wind simulator and flywheel in this system verify that as DC bus voltage is lower than 300 V, the rotational speed of flywheel decreases, and the flywheel equipment releases energy to maintain a stable system output, and when DC bus voltage is higher than 300 V, the rotational speed of flywheel increases, and the flywheel equipment stores energy to keep the system under a stable state.