舟山潮流能示范工程水轮机组选址与阵列优化

Site selection and layout optimization of turbines in the Demonstration Project of Zhoushan Tidal Stream Energy

通过OpenTidalFarm开源代码建立浙江舟山潮流能示范工程海域的水动力数值模型,结合实测数据对其进行验证。模型中通过增加局部底摩擦的方法概化了潮流能水轮机对水动力环境的影响,利用迭代算法快速优化水轮机阵列。结果表明,阵列优化后的舟山潮流能示范工程水轮机组提取的潮流能比其初始布局时提高了15.2%,说明水轮机布局对潮流能提取量有很大的影响。

The hydrodynamic model is established in the sea area of the Zhoushan Tidal Stream Energy Demonstration Project. The proposed model is based on the open source code OpenTidalFarm and verified by the observed data. In this model,the effect of tidal stream turbine is approximated by a locally-increased bottom friction and the turbines layout is optimized by the iterative algorithm and adjoint method. The result shows that the tidal current energy extracted by the optimized array is 15.2% higher than that of initial regular array,which can be a reference for the development and utilization of tidal current energy in the Demonstration Project of Zhoushan Tidal Stream Energy.