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Reconfigurability of the electrical network in a shipboard power system (SPS) after its failure is central to the restoration
of power supply and improves survivability of an SPS. The navigational process creates a sequence of different operating conditions.
The priority of some loads differs in changing operating conditions. After analyzing characteristics of typical SPS, a model
was developed used a grade III switchboard and an environmental prioritizing agent (EPA) algorithm. This algorithm was chosen
as it is logically and physically decentralized as well as multi-agent oriented. The EPA algorithm was used to decide on the
dynamic load priority, then it selected the means to best meet the maximum power supply load. The simulation results showed
that higher priority loads were the first to be restored. The system satisfied all necessary constraints, demonstrating the
effectiveness and validity of the proposed method. 相似文献
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The effect of line voltage drop is considered larger on loads, especially on asynchronous motor, transformers and other non-linear
load parameters in power system of large ships. A novel power flow method based on improved node voltage method is proposed,
and a typical ship power system, which has 2 power stations and 10 nodes, with closed-loop design but open-loop operation,
is taken as an example. Simulation results show that the improved power flow calculation method has achieved higher accuracy
and better convergence. 相似文献
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基于混合储能的船舶电力推进系统模糊PI控制策略 总被引:1,自引:0,他引:1
针对船舶实际航行过程中因复杂海况造成的电力推进系统中直流母线电压波动问题,构建一种基于混合储能的船舶电力系统模型,该模型由超级电容器和蓄电池组成。根据系统功率频谱确定低通滤波时间常数,并通过模糊PI控制策略实现对功率型和能量型2种储能元件充放电全过程的精确管理,延长使用寿命,有效应对在各种复杂海况下的直流母线电压波动问题。在VS2010上进行编程仿真分析,通过将仿真结果与实际船舶电力推进系统模型运行数据相对比,验证所提出的能量管理方案和控制策略的有效性。 相似文献
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根据电力电子器件产生电磁干扰的原理,对大功率AC/DC变换模块的电磁干扰机理进行了分析,并结合国军标中的电磁兼容测试给出了干扰等效电路,然后利用其频域模型,对变换模块在电网侧和直流侧产生的差模干扰进行了计算。 相似文献