Sigifredo Gonzalez
YOU?
Author Swipe
View article: Gestión y control de los datos BIM a lo largo del Ciclo de Vida en Proyectos de Edificación
Gestión y control de los datos BIM a lo largo del Ciclo de Vida en Proyectos de Edificación Open
Over the last century, the construction sector has not experienced significant advancements in terms of productivity and efficiency, especially when compared to other industries. Despite efforts to introduce key innovations in project plan…
View article: Systems and methods using collaborative controls to maintain unintentional islanding standards
Systems and methods using collaborative controls to maintain unintentional islanding standards Open
The present invention relates to systems and methods that use separation of time scales to mitigate interaction between unintentional islanding detection schemes and GSFs.
View article: Subharmonic power line carrier based island detection systems and methods
Subharmonic power line carrier based island detection systems and methods Open
Systems and methods for identifying an island condition in a power distribution system and disconnecting distributed generators in the case of islanding. The systems and methods are used to enable reliable detection of island formation wit…
View article: Overview of Functional Technical Requirements for Intentional Islands
Overview of Functional Technical Requirements for Intentional Islands Open
This document provides an overview of intentional islands, otherwise known as microgrids. The topics covered include common types of microgrid configurations, high level summaries of standards that address some aspect of microgrid implemen…
View article: Mojave firmware 1.09 FW valuation- Firmware 1.09 Results
Mojave firmware 1.09 FW valuation- Firmware 1.09 Results Open
This quick note outlines what we found after our conversion with you and your team. As suggested, we loaded 1547-2003 source requirements document (SRD) and then went back and loaded 1547-2018 SRD. This did result in implementing the new 1…
View article: Mojave firmware 1.09 base-line valuation [Memo]
Mojave firmware 1.09 base-line valuation [Memo] Open
The inverter firmware was upgraded to version 1.09 and an initial assessment was conducted on the inverter using the equipment listed above and the response of the inverter can be seen in the following plots. This work is to base-line the …
View article: A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018
A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018 Open
The focus of this document is to provide a summary of the requirements related to unintentional islanding in the IEEE 1547 standard, and to provide the reader with basic knowledge and background information to improve the understanding and…
View article: GMLC Survey of Distributed Energy Resource Interconnection and Interoperability Standards
GMLC Survey of Distributed Energy Resource Interconnection and Interoperability Standards Open
This document reports on the Grid Modernization Laboratory Consortium effort to identify gaps in standards for the interconnection and interoperability of distributed energy resources (DERs). The project extended a 3-year period from 2017 …
View article: Performance of a Grid-Forming Inverter Under Balanced and Unbalanced Voltage Phase Angle Jump Conditions
Performance of a Grid-Forming Inverter Under Balanced and Unbalanced Voltage Phase Angle Jump Conditions Open
Renewable energy has become a viable solution for reducing the harmful effects that fossil fuels have on our environment, prompting utilities to replace traditional synchronous generators (SG) with more inverter-based devices that can prov…
View article: RADIANCE Cybersecurity Plan: Generic Version
RADIANCE Cybersecurity Plan: Generic Version Open
Under its Grid Modernization Initiative, the U.S. Department of Energy (DOE), in collaboration with energy industry stakeholders developed a multi-year research plan to support modernizing the electric grid. One of the foundational project…
View article: Optimal Distribution System Voltage Regulation using State Estimation and DER Grid-Support Functions
Optimal Distribution System Voltage Regulation using State Estimation and DER Grid-Support Functions Open
Increasing solar energy penetrations may create challenges for distribution system operations because production variability can lead to large voltage deviations or protection system miscoordination. Instituting advanced management systems…
View article: Accelerating Systems Integration Standards (ACCEL)
Accelerating Systems Integration Standards (ACCEL) Open
This is the final report for a project to support the development of systems integration standards. The scope of work undertaken by the multi-laboratory team was to facilitate standards development and to help expedite the process in three…
View article: RADIANCE Cybersecurity Plan: Generic Version
RADIANCE Cybersecurity Plan: Generic Version Open
Under its Grid Modernization Initiative, the U.S. Department of Energy(DOE),in collaboration with energy industry stakeholders developed a multi-year research plan to support modernizing the electric grid. One of the foundational projects …
View article: Grid-forming Inverter Experimental Testing of Fault Current Contributions
Grid-forming Inverter Experimental Testing of Fault Current Contributions Open
Historically, photovoltaic inverters have been grid-following controlled, but with increasing penetrations of inverter-based generation on the grid, grid-forming inverters (GFMI) are gaining interest. GFMIs can also be used in microgrids t…
View article: Development and Evaluation of Open-Source IEEE 1547.1 Test Scripts for Improved Solar Integration
Development and Evaluation of Open-Source IEEE 1547.1 Test Scripts for Improved Solar Integration Open
Distributed Energy Resources (DERs) equipped with standardized, interoperable, grid-support functionality have the capability to provide a range of services for power system operators. These requirements have been recently codified in the …
View article: Evaluation of Multi-Inverter Anti-Islanding with Grid Support and Ride-Through and Investigation of Island Detection Alternatives
Evaluation of Multi-Inverter Anti-Islanding with Grid Support and Ride-Through and Investigation of Island Detection Alternatives Open
As utility interconnected photovoltaic systems (PV) become integrated into the electrical power system (EPS) at an increasing rate, utilities and regulators have become concerned about the potential for increased voltage and frequency devi…
View article: Implementation of a Grid Connected Battery-Inverter Fleet Model
Implementation of a Grid Connected Battery-Inverter Fleet Model Open
Batteries are designed to store electrical energy. The increasing variation in time value of energy has driven the use of batteries as controllable distributed energy resources (DER). This is enabled though low-cost power electronic invert…
View article: Unintentional Islanding Detection Performance with Mixed DER Types
Unintentional Islanding Detection Performance with Mixed DER Types Open
Most inverters for use in distribution-connected distributed energy resource applications (distributed generation and energy storage) are tested and certified to detect and cease to energize unintentional islands on the electric grid. The …
View article: Fault Current Experimental Results of Photovoltaic Inverters Operating with Grid-Support Functionality
Fault Current Experimental Results of Photovoltaic Inverters Operating with Grid-Support Functionality Open
The proliferation of photovoltaic (PV) distributed energy resources (DER) on distribution systems have caused concerns about electric power system (EPS) protection schemes, protection configurations, and device coordination. With the EPS d…