Distribution automation replaces operations that used to require a crew in a truck with operations a device performs on its own, in seconds, without anyone watching. A power quality monitor…
Distributed Generation White Papers
Power quality white papers on Distributed Generation.
15 white papers in Distributed Generation
Reverse Power Flow in Distribution Feeders
Most distribution feeders were planned around one-way power flow: from centralized generation, through substations and feeders, to customer loads. The rapid growth of Distributed Energy Resources (DERs) — rooftop solar,…
Understanding Voltage Stability vs. Voltage Regulation
Voltage stability and voltage regulation are commonly confused concepts, particularly in the context of customer voltage complaints and power quality investigations. These two phenomena differ significantly in both cause and…
Introduction to Ferroresonance
Ferroresonance is a nonlinear electrical phenomenon that can damage transformers, surge arresters, cable insulation, and switchgear — and create dangerous backfeed voltages on conductors that should be de-energized. Although relatively…
Distributed Generation Power Quality Standards
The dramatic proliferation of Distributed Generation (DG) deployments began before power quality (PQ) standards were in place to ensure compatibility in the grid. IEEE 519-2014, a recommended practice for limiting…
DER Control and Management with the Eclipse
The Eclipse provides the ability to control remote equipment in the form of a DER inverter. DER refers to Distributed Energy Resources and is used to describe various decentralized sources…
Voltage Sags in Photovoltaic Systems
Photovoltaic (PV) generation is electrically in parallel with the utility supply, and thus lowers the steady-state system impedance. The ideal result is a reduction in locally caused voltage sags as…
Using Mixed Graphs for Distributed Generation Analysis
Analysis of recordings of distributed generation (e.g. solar, wind, etc.) systems present new challenges for utilities. Distributed generation analysis usually involves looking at voltage and power, voltage and voltage THD,…
Voltage Regulation Analysis With Daily Profiles
If there were no variations in distribution load, system voltage regulation would be a simple task. But Ohm’s law dictates that a change in load produces a change in delivered…
Photovoltaic Monitoring with Canvass
The use of distributed generation has witnessed a dramatic increase over the past decade. The two most popular of these – solar and wind – provide a unique set of…
Photovoltaic Monitoring Setup Recommendations
Photovoltaic (PV) systems generate new power quality and even basic grid stability challenges. The rapid deployment of PV generation requires comprehensive monitoring to help understand and quantify the impacts on…
Introduction to Residential Wind Turbine Generation
This white paper is a basic overview of wind turbines used for residential power generation. It explains how a wind turbine works, the basic theory, what types of wind turbines…