A PC-Cluster Based Real-Time Simulator for All-Electric Ship Integrated Power Systems Analysis and Optimization

Abstract

This paper presents the development of a PC-cluster based real-time simulator for All Electric Ship (AES) Integrated Power System (IPS) analysis and optimization. The system is established at the University of Michigan with the financial support from the U.S. Office of Naval Research (ONR). It is aimed to address the multi-disciplinary issues associated with the allelectric ship, such as optimal power management and dynamic system reconfiguration. In parallel with hardware construction, a modularized IPS model which includes the power generation module, the reconfigurable zonal electrical distribution system module, the ship propulsion module and the ship dynamic module is developed and integrated. Simulation GUIs have also been developed to provide a user friendly engineering environment where data acquisition and parameter tuning can be performed effectively. Both the system development efforts and preliminary simulation results for different shipboard operating scenarios are reported.

Optimal Sizing of Energy Storage Systems for Shipboard Applications

“…In equation 12, the total power delivered by the i-th diesel generator at the j-th time step is defined as the sum of the power delivered by all the n-th power ranges P g enij n , defined by the piecewise linear function. Further, in (13) the power limits of each step of the function are defined as P nomn and equation (14) states that it is not possible to work in the (n+1)-th step without working also in the previous n-th step. Finally, the corresponding penalty value is proposed in (15), where P g % is the ratio between P g enij n and the product of z i j n and P nomn .…”

Real-time dynamic HIL simulator of gas turbine, governor, generator and grid for static excitation of a 200-MVA synchronous generator

“…The majority of the simulator’s codes belong to the generator, grid, governor, and turbine. Unlike many other studies which used prepared models in costly commercial software, 5 in this work, as was stated in modeling section, the mathematical model of these mechanical and electrical parts has been implemented in LabVIEW. Their parameters were also used to examine different scenarios during tests.…”

“…There are many vendors worldwide that are providing hardware-in-loop (HIL) simulators with different RT engines. 1 These real-time engines often vary from digital signal processors, 2,3 personal computer (PC)-based clusters, 4,5 field-programmable gate array (FPGA) coprocessor boards, 6 or simple PC-based DOS targets. 7 Although it was assumed that these targets are normally limited to small plants, recent hardware developments and examination of those platforms have shown that PC-based RT kernels with properly tuned priority levels enable a good level of reliability.…”

Integrated voltage regulation and current-sensorless power tracking control for a DC hybrid power system

“…For example, when combining renewable energy technologies such as wind energy [1] and photovoltaic energy [2] with traditional power generation technologies, it can provide low cost and highly reliable power solutions for island and remote area applications. Meanwhile, state-of-the-art fuel cell technologies bring in the low emission and high efficiency option of power generation, making them very attractive for automotive powertrain [3] and shipboard power systems [4]. In general, hybrid power systems can be categorized into AC Hybrid Power Systems (AHPS) and DC Hybrid Power Systems (DHPS), depending on the types of power bus used.…”