Transient study of DC Zonal Electrical Distribution System in Next Generation Shipboard Integrated Power Systems using PSCAD™

Abstract

Developing power management schemes for the Next Generation Integrated Power System (NGIPS) for ships requires an adequate model of the power system. NGIPS is the subject of ongoing research in different fields and a design handbook of this system is not available yet. This paper presents a design, modeling and simulation procedure for a DC Zonal Electrical Distribution System (ZEDS) in a notional NGIPS model. PSCAD™ software is used as the EMTP simulation tool to study the system. The DC ZEDS is developed based on data available in the literature. The models of the components are designed as multi-terminal blocks including the power converter modules and required enclosures. The modeling procedure for each component includes topology selection, analytical formulation, design, and implementation in PSCAD™ software. Case studies are performed to verify the performance of developed models and study of fundamental concepts about the DC ZEDS which is subject of interest in areas such as power management and protection of NGIPS.

A novel vehicular integrated power system realized with multi-port series ac link converter

“…Similar idea has been extensively researched for all electric ships [31]. An integrated power system can potentially increase the functionality and reliability, and can decrease the cost and the size of the system.…”

A PC-based test bed for NG IPS for ships in PSCAD™

“…An uncontrolled rectifier was used to model PCM4. The detailed design and implementation can be found in [7].…”

“…The design of the buck converter is well documented in [7] where the loading was assumed to be fixed. However, in the DC zone there are vital loads and non-vital loads.…”

“…PSCAD TM , a commercially available EMTP employed for dynamic study of electrical systems, has been used to model a notional IPS model which is discussed in this paper. Previous use of this software for IPS studies modeled only the low voltage components (LV) [7], or medium voltage AC components (MVAC) while aggregating LV loads [8].…”

“…This paper provides an academic insight into the modeling of a PC-based IPS test bed for both the MVAC and LV levels using PSCAD TM while complementing the modeling approach of [7], [8] specifically on the generator module, the propulsion, cables, and load models. This test bed will be used for future study of various control strategies such as load management, power management, and reconfiguration.…”