This paper addresses voltage control and load sharing in DC distribution systems. At present, DC distribution systems are utilised in, for example, telecommunication systems. Future applications could also involve distributed power systems based on renewable energy sources. The dynamic and stationary properties of voltage droop control and its load sharing abilities are investigated. The DC bus...

In shared System-on-chip(SoC) bus systems, arbiters are mandatory to deal with bus contentions while providing a hard real-time guarantee. In this paper, we propose a shared bus arbitration algorithm, called adaptive dynamic and real-time guaranteed arbitration algorithm. It allows high bus utilization and proper bandwidth allocation while guaranteeing hard real-time requirements. Comparisons a...

This paper, propose a Three-terminal Reduced DC Bus Capacitance Unified Power Flow Controller (UPFC) for Low Voltage (LV) distribution Networks with High Photovoltaic (PV) penetrations. The device is shown capable of voltage regulating and correcting phase unbalance voltages that can be produced by high levels of distributed photovoltaic (PV) generation. The device is also capable of Power fact...

The main goal of this paper is to detect the opencircuit fault of the electrolytic capacitors usually used in the dcbus of a three phase/level NPC active rectifier. This phenomenon causes unavoidable overvoltage across the dc-bus leading therefore to the destruction of the converter’s power semiconductors. The real-time detection of this fault is therefore vital to avoid severe damage as well a...

In recent years, electronic power transformer (EPT), which is also called solid state transformer, has attracted great interest and has been used in place of the conventional power transformers. These transformers have many important functions as high unity power factor, low harmonic distortion, constant DC bus voltage, regulated output voltage and compensation capability. In this study, propos...

With increasing the energy demand, optimal and safe operation of power systems is main challenge for engineers. Thus, a technique implementation demand response programs (DRPs), installation distributed generation (DG) with transmission distribution factors, DC dynamic load flow presented in this paper. In fact, finding time execution DRPs bus installing wind units its probabilistic effects con...

This paper presents a strategy to evaluate the performances of converter stations under optimized operating points hybrid AC-DC power systems with reduced number DC link variables. Compared previous works reported five DC-side control variables (CVs), uniqueness presented optimal flow (OPF) formulation lies within selection only two such as inverter voltage and current in link, apart from conve...

Electrified ports using medium-voltage DC (MVDC) renewable energy microgrids require current-fed dc/dc converters in application scenarios such as battery or ultracapacitor charging units and hydrogen production systems. This paper designs a three-level phase-shift full-bridge (TL-PSFB) converter that interfaces with the MVDC microgrid. Its operation current source mode requires wide output vol...

City administrators need to guarantee bus priority in urban public transportation. Building large-scale dedicated bus lanes is a cost-effective solution but it suffers from illegal utilization of dedicated bus lines by other non-permitted vehicles. In general, two systems can be utilized for bus lane monitoring: road-side system and bus mounted system. Although the former one has the advantage ...

This paper presents a parallel energy-sharing control strategy for the application of fuel cell hybrid vehicles (FCHVs). The hybrid source discussed consists of a fuel cells (FCs) generator and energy storage units (ESUs) which composed by the battery and ultracapacitor (UC) modules. A direct current (DC) bus is used to interface between the energy sources and the electric vehicles (EV) propuls...