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This paper presents a methodology and software for simulating alternatives and works to amend voltage levels provided to affected low voltage customers. The methodology describes a type of state estimation of a low voltage network, using voltage measurements of a single load point. From a set of possible alternatives to amend voltage levels, the main is to install the Portable Voltage Regulator for...
This article focuses on the developing of a Portable Voltage Regulator for Low Voltage Networks (PVRL VN), for single phase, two phases and three phases networks, which envisages meeting the regulations, given that the time established by the regulatory standards is a factor that limits the planning and the execution of corrective actions. The first PVRLVN was developed inside a Research & Development...
This paper presents a methodology for assessment of the impacts on the distribution network faced with the presence of electric vehicles (EV) and aims at its application in the distribution networks of two power utilities in Brazil. The impact on the electrical system is originated by the loads on the network, which are represented by particular and typical load curves associated to consumers, and...
The phenomena related to Power Quality, as the voltage dips, imbalances, harmonic distortion and interruptions can cause damage to equipment used in industries and commercial sector. As soon as an outage occurs caused by one of these phenomena, there may be costs of various kinds, like production lost and others. Although there are mechanisms of cost internalization, such as penalties, the real cost...
This paper describes the development of a Portable Voltage Regulator for Low Voltage Networks applications (PVRLVN) that aims keeping consumers feeding voltage within the limits set by Brazilian Regulations Agency (ANEEL). PVRLVN allows adjusting grid voltage by means of the addition or subtraction of the adequate amount of voltage through an isolated secondary winding of a Buck-Boost transformer,...
The paper presents a methodology to determine budget resources to predictive and preventive maintenance actions. The methodology includes an optimization model to locate the resources that consider ranking indexes to network inspections and corrective actions, taking into account budget constraints.
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