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The widespread adoption of Renewable Energy Resources (RER) and Plug-in Electric Vehicles (PEVs) in distribution systems has achieved a substantial energy share, allowing the microgrid to participate in the open market. In fact, the high penetrations of RER and PEVs have increased the importance of impact assessment involving system protection. A framework is presented in this paper for modeling the...
A novel adaptive battery system with two battery sources is proposed to provide multiple output levels and increased benefits when integrated with multi-level inverters by improving the batteries' state of health (SOH) and state of charge (SOC). Applications of this topology include dynamic hybrid battery/inverter and photovoltaic/inverter systems. The system has been modeled and validated using Matlab...
This paper proposes a configuration based on an a PR controller to enhance the power quality of a Single-Phase Five-Level Inverter (SPFLI). A sliding mode control is used to compensate the voltage harmonics and regulate the load supply. The proposed configuration implementing a sliding mode controller, a resonance regulator helps improving the dynamic response of the system and may target any specified...
Presently, the concept of renewable energy is gaining ground, because power, and especially electrical power or electrical applications, are tending towards renewable sources, and as a consequence the use of renewable energy increased over the past years. This paper presents a review of multiport converters, different multiport converters are to be discussed, and a comparison between a transformer...
The Lebanese electricity system system's deteriorating situation (mainly characterized by the daily long rationing hours), has led to the wide use of diesel generators by Lebanese citizens to compensate for the outage hours. Unfortunately, this has led to lower energy efficiency, higher cost of power production, and notably higher greenhouse gas emissions. In this paper, a renewable-based micro-grid...
An adaptive battery storage system consisting of two batteries and a multilevel inverter connected to a three phase load is proposed herein. A five level three-phase inverter topology is developed that pre-calculates switching angles and uses a third-order lead acid battery model. The main advantage of this system is a reduction in the number of power electronic switches, pre-calculated switching...
This paper proposes a prototype of a Self-Sustainable Solar-powered smart house to be implemented in the Middle East climate. The proposed system aims to reduce the reliance on nonrenewable energy sources and emphasizes the importance of green energy as a main source of energy. Furthermore, it introduces responsiveness of the loads to trigger demand response. This paper will cover the development...
Distributed Energy Resources (DERs) are increasingly becoming a key player in meeting customer power demand in many countries today. Distributed Generation (DG) interconnection of DERs in both grid connected and microgrid modes allows the coordination of DERs in a manner such that they can supply both active power and ancillary services when required. This paper presents a strategy for coordinated...
This paper presents energy efficiency analysis for a medium office building and at the same time remodels the building in order to develop the energy efficiency. The author of this work will also integrate a renewable energy system with this office building to contemplate the effect of the system on energy demand and cost.
This paper presents a study of different converter topologies used in the design of hybrid electric vehicle drivetrains with emphasis on the power electronic interface for a battery/ultracapacitor hybrid energy storage pack. Each of the topologies proposed in literature has its own advantages and disadvantages, thus choosing an appropriate topology depends greatly on the specified application, design...
This paper deals with design and control of a connected wind energy generation system employing a Permanent Magnet Synchronous Generator (PMSG) driven by a variable speed wind turbine feeding single-phase loads. The proposed energy conversion system makes use of asymmetric NPC five level inverter. The dc terminal of the generator connected rectifier is tied to a boost converter for Maximum Power Point...
Electric vehicles and renewable energy sources typically generate distorted current waveforms (harmonics). As consumer adoption of these technologies increases, it is expected that harmonics will accumulate resulting in poor power quality and degradation of smart grid performance. Such impacts would affect many sectors including utilities, auto manufacturers, and renewable energy producers. For research,...
This paper proposes a grid-connected Permanent Magnet Synchronous Generator (PMSG) driven by the wind turbine with harmonics, reactive power and unbalances compensation capability. The proposed wind energy conversion system consists of a PMSG coupled to a diode-bridge rectifier, a DC-to-DC converter and a three-phase four-wire inverter. The diode-bridge rectifier is used as an AC-DC converter. The...
A Microgrid is a devised grouping of loads, generation sources and energy storage interfaced through fast response power electronics to form a small scale power network. The paper discusses the complexities that could be faced by the existing Saudi Arabian Grid when Distributed Generation Resources are introduced to it. Considering a case of small microgrid and simulating a network similar to T and...
With the advancement and development of power electronic components, especially the IGBT (Insulated Gate Bipolar Transistor), transformer-less UPS systems are starting to be widely used for UPS size 300 KVA and less in lieu of the conventional transformer-based online UPS systems. Selecting a transformer-based or transformer-less UPS might not be simple choice at it seems. Many factors must be taken...
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