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Power Quality within LV distribution and Smart Grid systems is an important issue. Open Unified Power Quality Conditioner (Open UPQC) is a possible solution to improve power quality level within distribution smart grid networks. This paper presents the ICT-based power control in order to manage cooperation between series and shunt units of Open UPQC. The cooperation is meant to improve system functionality...
This paper presents a comparative analysis among the various methodologies of automatic voltage control in electric power distribution substations, by studying the behavior of the steady state voltage. This project was based on a real case study in which three different voltage regulation techniques (Constant Voltage, Load Line, and Line Drop Compensation (LDC)) were implemented in a substation of...
It is known that the increasing penetration of Distributed Generation (DG) implies different technical problems in the operation of distribution systems. This paper focuses the electrical Power Quality (PQ) aspects. DG can be responsible for different PQ problems, like poor voltage quality, unwanted protection trips on healthy feeders, and “islanding”. Voltage quality, in particular, can become a...
Hydro-Quebec aims saving energy by controlling the voltage level and by managing the reactive power (vars) in the distribution network. For this, it will use a VVC system, which requires a permanent surveillance of the voltage level at the end of the distribution feeder and the installation of switching shunt capacitor banks.
This paper analyzes the influence of distributed energy resources (DER) on distribution network voltage profile. A general description of the impact of DER on voltage profile is given and three advanced voltage control techniques are discussed: central voltage control with multiple voltage measurements, reactive power control with sources that enable such operation and the use of an autotransformer...
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