ABSTRACT

In this work, we discuss and demonstrate how multi-engine marine power plants with weak power grids efficiently can be set up and simulated in a distributed co-simulation framework. To facilitate configuration switching such as starting and stopping, connecting and disconnecting arbitrary gensets online, the generator models are modelled as hybrid causality component models. This implementation enables seamless and energy conservative model switching. Also, the proposed simulator framework is scalable such that the number of gensets in the power plant can be set by a single parameter, which automatically scales the power management system and the tailored simulator master algorithm accordingly. To control the number of active gensets being connected to the power grid while running the simulation, a simple mixed integer linear programming formulation is proposed. A simulation case study including a marine power plant configuration with four equal-sized gensets is conducted in the end to demonstrate the features of the proposed simulator framework, which also can be applied to, e.g. a small wind farm, or an isolated number of islands with interconnected power generators.

摘要

在这项工作中，我们讨论并演示了如何在分布式联合仿真框架中有效地建立和模拟具有弱电网的多发动机船舶发电厂。为了便于在线启动和停止、连接和断开任意发电机组等配置切换，发电机模型被建模为混合因果组件模型。此实现可实现无缝且节能的模型切换。此外，所提出的模拟器框架是可扩展的，使得发电厂中发电机组的数量可以通过单个参数来设置，从而自动扩展功率管理系统和相应的定制模拟器主算法。要在运行仿真时控制连接到电网的有源发电机组的数量，提出了一种简单的混合整数线性规划公式。最后进行了一个模拟案例研究，包括具有四个相同尺寸发电机组的海洋发电厂配置，以演示所提出的模拟器框架的功能，该框架也可以应用于小型风电场或孤立的多个岛屿等具有互连的发电机。