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AI automates substation control
(2002-01-01)
An overview is given on the possibility of controlling the status of circuit breakers (CB) in a substations with the use of a knowledge base that relates some of the operation magnitudes, mixing status variables with time ...
Decentralized Control of Voltage- And Current-Controlled Converters Based on AC Bus Signaling for Autonomous Microgrids
(2020-01-01)
This article proposes a fully decentralized control approach, based on AC bus signaling, to integrate the operation of voltage- and current-controlled converters that exist in an isolated low-voltage microgrid, so they may ...
Optimization of the TEGs Configuration (Series/Parallel) in Energy Harvesting Systems with Low-Voltage Thermoelectric Generators Connected to Ultra-Low Voltage DC-DC Converters
(Mdpi, 2020-05-01)
Solar radiation and human activity generate ubiquitous temperature gradients that could be harvested by thermoelectric generators (TEGs). However, most of these temperature gradients are in the range of very few degrees ...
A Robust Model Predictive Control For Grid-Connected Voltage-Source Inverters
(Institute of Electrical and Electronics Engineers, 2013-02)
Model predictive control is a new alternative in the control of power converters. The practical application of this controller demands a correct compensation of the computation delay. This compensation requires an estimation ...
Simplified method for the evaluation of the reverse dark current-voltage characteristic of thin film devices
(Wiley Vch Verlag, 2015-09)
An algorithm that simplifies the evaluation of the reverse dark current–voltage (J–V) characteristic of semiconductor thin film devices is presented. This algorithm, recognized with the symbols “0KRDA”, is an approximation ...
Dark Current Voltage Characteristics of Micromorph Silicon Tandem Cells
(American Institute Of Physics, 2009-05-02)
The transport mechanisms controlling the forward dark current-voltage characteristic of the silicon micromorph tandem solar cell were investigated with numerical modeling techniques. The dark current-voltage characteristics ...
HIGH-VOLTAGE CAPACITOR CHARGE CONTROL BY LOW-VOLTAGE CYCLE COUNTING
(Amer Inst PhysicsWoodbury, 1980)
Optimal fractional order adaptive controllers for AVR applications
(Springer, 2018)
This work presents strategies for fractional order model reference adaptive control (FOMRAC) and fractional order proportional-integral-derivative control (FOPID) applied to an automatic voltage regulator (AVR). The paper ...
Lightning-Induced Voltages on Overhead Lines-Application of the Extended Rusck Model
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2009)
Lightning-induced overvoltages have a considerable impact on the power quality of overhead distribution and telecommunications systems, and various models have been developed for the computation of the electromagnetic ...
Optimal Multiobjective Control of Low-Voltage AC Microgrids: Power Flow Regulation and Compensation of Reactive Power and Unbalance
(Ieee-inst Electrical Electronics Engineers Inc, 2020-03-01)
The presence of single-phase distributed generators unevenly injecting active power in three-phase microgrids may create undesired upstream current unbalance. Consequently, voltage asymmetry and even active power curtailment ...