[Show abstract][Hide abstract] ABSTRACT: This paper addresses the establishment of a kVA-range plug-in hybrid electrical vehicle (PHEV) integration test platform and associated issues. Advancements in battery and power electronic technology, hybrid vehicles are becoming increasingly dependent on the electrical energy provided by the batteries. Minimal or no support by the internal combustion engine may result in the vehicle being occasionally unable to recharge the batteries during highly dynamic driving that occurs in urban areas. The inability to sustain its own energy source creates a situation where the vehicle must connect to the electrical grid in order to recharge its batteries. The effects of a large penetration of electric vehicles connected into the grid are still relatively unknown. This paper presents a novel methodology that will be utilized to study the effects of PHEV charging at the sub-transmission level. The proposed test platform utilizes the power hardware-in-the-loop (PHIL) concept in conjunction with high-fidelity PHEV energy system simulation models. The battery, in particular, is simulated utilizing a real-time digital simulator () which generates appropriate control commands to a power electronics-based voltage amplifier that interfaces via a LC-LC-type filter to a power grid. In addition, the PHEV impact is evaluated via another power electronic converter controlled through , a rapid control systems prototyping software.
Full-text · Article · Jul 2011 · Journal of power electronics
[Show abstract][Hide abstract] ABSTRACT: With the issues of fuel cost and environmental impact on the rise, the concept of replacing conventional vehicles with plug-in hybrid electric vehicles (PHEVs) has become essential. The main goal of PHEV implementation focuses on the ability to utilize electrical propulsion to assist the internal combustion engine. However, the batteries for the PHEV must be recharged using grid energy. This paper will study the effects of PHEV charging at the sub-transmission level through modeling/simulation and power hardware in the loop including an actively controlled drive system and controllable load.
[Show abstract][Hide abstract] ABSTRACT: Recent increased popularity in plug-in hybrid electric vehicles (PHEVs) has been influenced by their ability to relieve the economic dependence on oil, meanwhile reducing the carbon footprint through the decreased level of harmful emissions. However, PHEV popularity has not come without a cost. PHEVs main source of power are their internal energy storage systems which require energy from the grid through a form of charging station. This need to charge creates a power consumption dilemma on the ever-strained power system from population growth and the consumer use of power for current everyday technologies. To study the effects that the charging PHEVs will have on the system, two studies were performed within the scope of this thesis: a system study involving the IEEE 14-Bus and a subsystem study that will incorporate the development of a virtual grid interface. The system study populated the IEEE 14-Bus system with constant power loads to observe the additional power requirements on the supply generators when integrating PHEVs into the system in an incremental fashion. Also, charging method impacts were conducted by creating uncontrolled and controlled charging profile loadings with the PHEVs. The second study developed a laboratory environment with the intent of emulating a grid-connected charging PHEV, also known as a virtual grid interface. This grid interface will be tested to show proof of concept and then applied to a set of hardware to demonstrate the negative effects of uncontrolled front ends within charging station. Subsequently, the mitigation of the aforementioned negative effects will be illustrated through the employment of an active front end within the charging station. The conclusion provides an understanding for affects from charging PHEVs and the importance in developing controls within the charging stations in order to mitigate undesirable charging impacts. Additionally, the vast range of applications for which the developed virtual grid interface can be used for is discussed, along with some of the limitations and future works of the system.
[Show abstract][Hide abstract] ABSTRACT: Over the past decade, electric vehicles have emerged as a potential solution to the growing fossil fuel dependence, as well as a means of drastically reducing the manmade pollutants in the environment. Plug-In Hybrid Electric Vehicles (PHEVs), which have both an internal combustion engine and an on board battery, are designed to charge the vehicle's battery directly from the electric grid. Although PHEVs seem to provide a solution, there are pros and cons of switching to PHEVs. Their inherent ability to decrease the dependence on oil is partially offset by the overall increase in power consumption. With the current power grid, the introduction of PHEVs could have critical affects depending on the percentage and demographical uniformity of their infiltration.
[Show abstract][Hide abstract] ABSTRACT: This paper is a literary review of the benefits and barriers of PHEV deployment in the U.S., along with the proposed solutions to the setbacks that may occur. The review aims at identifying the energy requirements of PHEVs, the impact of PHEVs on the grid, and solutions to the shortcomings of the electrical grid, such as vehicle to grid and smart grids.