Renewable energy capacity in stand-alone power supply (SPS) systems has undergone a dramatic growth in Western Australian (WA) remote off-grid agricultural and pastoral regions. This growth was encouraged through capital cost subsidies of photovoltaic, wind turbine and enabling technologies. This research explores and quantifies the changes over time of energy demand and the rated output of ren...

Supercapacitors (SCs), also known as ultracapacitors and electric double-layer capacitors, are finding use in a variety of power management applications. In automotive applications such as start-stop systems with regenerative braking, SCs can provide the energy needed to engage the starter to restart the combustion engine as well as accept the kinetic energy recovered during braking. Supercapac...

An important part of uninterruptable power supply is the DC to AC inverter which converts the DC voltage from a battery to an AC voltage that is required to operate electronic circuits. These inverters are bulky in nature & consume most of the power. Therefore power available at the output of inverter is less. So it is the goal of this paper to develop a DC/AC inverter capable of producing a pu...

At present, the research on five-level inverters mainly involves the modulation algorithm and topology, and few articles study the five-level inverter from the control strategy. In this paper, the nonlinear passivity-based control (PBC) method is proposed for single-phase uninterruptible power supply inverters. The proposed PBC method is based on an energy shaping and damping injection idea, wh...

Flexible AC Transmission Systems (FACTS) is granting a new group of advanced power electronic devices emerging for enhancement of the power system performance. Unified Power Flow Controller (UPFC) is a recent version of FACTS devices for power system applications. The back-up energy supply system incorporated with UPFC is providing a complete control of real and reactive power at the same time ...

The paper considers the issue of improving methods uninterruptible power supply intelligent control based on adaptive algorithms with use artificial neural network technologies. An PID regulation method UPS battery charge current is proposed. A scheme adjustment coefficients has been developed. simulation modeling was used to search for topology, which would be most effective according criteria...

This special issue presents a review of recent advances in electrochemical energy storage, battery management systems, and power electronics for grid-scale energy storage applications. The importance of energy storage across the entire electricity infrastructure is growing rapidly. In particular, this is highlighted by the urgent need to address the intermittency challenge caused by the large-s...

The use of electric vehicles (EVs) for household uninterruptible power supplies (UPSs), particularly in rural areas, can greatly improve reliability. However, because EVs are mobile, the evaluation backup capacity EV-UPS systems is completely different when compared to traditional UPSs. As a result, focus this paper on and improvement systems. architectures presented first. methodology calculat...

The firing angle control of thyristor full wave ac-dc converters to set the desired DC bus voltage in Uninterruptible Power Supply (UPS) systems have drawbacks of pulsating input current, high harmonic content, low pf, low efficiency and large size of inductors and filters. International standards impose several constraints concerning the electric power quality and harmonic content of the line ...

The management of the power consumption is an important subject, which is getting attention of several segments in computers industry. Nowadays, the management is accomplished independently, in each machine, without taking into account the network requirements and the other components. This paper presents a Management Information Base (MIB) used to control the energy consumption of a computatio...