Grid Regulation Services for Energy Storage Devices Based on Grid Frequency
The invention represents an algorithm to provide a form of "regulation up and down services" to the electric power grid using an energy storage device. The storage device could be an electric vehicle or a stationary energy storage device like a photovoltaic system. The regulation will allow the storage device to vary its contribution to the power grid between a full discharge (generation) state and full charge (consumption) state. The basis for this regulation will come from frequency measurements of the alternating current (AC) power supply as delivered to the outlet in homes and buildings. The actual amount of load present on the system will be adjusted using this regulation signal and information about any constraints imposed upon the load device (such as a desired finish time or maximum capacity). The invention represents an algorithm to provide a form of regulation up and down services to the electric power grid using any load whose overall operation will not be hindered if the power supplied to the load varies in a charging and discharging sense (i.e., “load” devices such as the charger for a plug-in hybrid electric vehicle (PHEV) or other storage device). The regulation will allow the storage device to vary its contribution to the power grid between a full discharge (generation) state and full charge (consumption) state. The basis for this regulation will come from frequency measurements of the alternating current (AC) power supply as delivered to the outlet in homes and buildings. The actual amount of load or generation the end device presents on the system will be adjusted using this regulation signal and information about any constraints imposed upon the load device (such as a desired finish time or maximum capacity).
Grid Regulation Services for Energy Storage Devices Based on Grid Frequency
The invention represents an algorithm to provide a form of "regulation up and down services" to the electric power grid using an energy storage device. The storage device could be an electric vehicle or a stationary energy storage device like a photovoltaic system. The regulation will allow the storage device to vary its contribution to the power grid between a full discharge (generation) state and full charge (consumption) state. The basis for this regulation will come from frequency measurements of the alternating current (AC) power supply as delivered to the outlet in homes and buildings. The actual amount of load present on the system will be adjusted using this regulation signal and information about any constraints imposed upon the load device (such as a desired finish time or maximum capacity). The invention represents an algorithm to provide a form of regulation up and down services to the electric power grid using any load whose overall operation will not be hindered if the power supplied to the load varies in a charging and discharging sense (i.e., “load” devices such as the charger for a plug-in hybrid electric vehicle (PHEV) or other storage device). The regulation will allow the storage device to vary its contribution to the power grid between a full discharge (generation) state and full charge (consumption) state. The basis for this regulation will come from frequency measurements of the alternating current (AC) power supply as delivered to the outlet in homes and buildings. The actual amount of load or generation the end device presents on the system will be adjusted using this regulation signal and information about any constraints imposed upon the load device (such as a desired finish time or maximum capacity).
Optimized Cell Configurations for Stable LSCF-based Solid Oxide Fuel Cells
The purpose of this invention is to improve the stability of LSCF-based cathode used for solid oxide fuel cells (SOFCs). Lanthanum strontium cobalt iron oxides (La(1-x)SrxCoyFe1-yO3-ƒÔ; LSCF) are well-known cathode materials for SOFCs. Although these materials reveal high initial power, they often experience rapid degradation in power. New optimized cell configuration and metallization was designed to improve the stability of the LSCF-based materials. It was found that the full coverage of a metallization layer combined with a thicker and less porous cathode layer helped to improve the stability of high-power LSCF cathode.
University, PNNL Advance New Concepts for Clean Energy Workforce
Tennessee State University received Department of Energy funding to establish an academy focused on preparing students and professionals to work in an emerging field: clean energy systems. PNNL is helping with that effort and others.
Innovative Funding Models for Water-Energy Projects Webinar
A webinar related to water and energy including lessons from the Massachusetts Gap Funding grant program.
EVALUATING CYBER-RISK IN SYNCROPHASOR SYSTEMS
The invention utilizes modified form of Event Tree Analysis (ETA) technique for developing a semi-quantitative approach for modeling and estimating cyber-risks due to timing intrusions in the power system towards development and experimentation of timing intrusion detection systems in the planning stage. The method is able to capture the vulnerability of the components of the power system to cyber-attacks, and the impact of such attacks on data which is being used as input for various power system applications and controls within utilities.
TRANSFORMATIVE REMEDIAL ACTION SCHEME TOOL (TRAST)
The transformative remedial action scheme tool (TRAST) can be applied to improve and validate the power system remedial action scheme (RAS), and further improve the performance of power system operation and control. This tool provides a full suite of advanced functionalities, which are given as follows: Advanced statistical data analysis; OPF-based automated power flow case generation; Customized dynamic simulation in HPC/cloud platform; Machine learning based RAS coefficient prediction; A reliable RAS validation strategy in multiple commercial platforms.