The existing method cannot realise the optimal economical dispatch operation of cascaded-type microgrids with capacity constraints in a communication-free manner. To address this problem, a new optimal economical dispatch control scheme is proposed for the islanded cascaded-type microgrids without communications. Compared to the existing method, there are two prominent advantages: (i) global optimal economical operation with capacity constraints is realised; (ii) improved load voltage quality is obtained. Then, the stability of the proposed scheme has been analysed with a small-signal analysis method. Finally, the effectiveness of the method is verified by both simulations and experiments.

中文翻译：

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具有容量约束的级联型微电网的无通信最优经济调度方案

现有方法无法以无通信方式实现容量受限的级联微电网的最优经济调度操作。为了解决这个问题，提出了一种针对孤岛式无通讯微电网的最优经济调度控制方案。与现有方法相比，有两个突出的优点：（i）实现了具有容量约束的全球最优经济运行；（ii）获得改善的负载电压质量。然后，采用小信号分析方法对所提方案的稳定性进行了分析。最后，通过仿真和实验验证了该方法的有效性。