Now showing items 1-10 of 473
Development of a water quality index using a fuzzy logic: A case study for the sorocaba river
Due to growing urbanization and industrialization, the environment is suffering from pollution of rivers, degradation of soils and deteriorated air quality. Quality indices appear to be useful to evaluate the conditions ...
Robust control applied to power flow control in single-phase inverter with LCL filter, using droop control and D-stability
This paper proposes a new methodology to control the power flow between a distributed generator (DG) and the electrical power distribution grid. It is used the droop voltage control to manage the active and reactive power. ...
Implementation of Software Quality Control in E-Learning development projects: TEC Digital
The quality control in software applications that support the teaching-learning process is of great impact to the end user and their academic success. This paper describes the proposal of a quality control model called ...
Inversor CS Boost monofásico em aplicações com fontes renováveis
This paper presents a new methodology for the operation and control of a single-phase current-source (CS) Boost Inverter, considering that the conventional current-source inverter (CSI) has a right-half-plane (RHP) zero ...
AC-DC three-phase multipulse converter with boost DC-DC stage and constant hysteresis control
This work proposes a new three-phase multipulse rectifier based on the delta autotransformer connection with DC-DC Boost stages and constant hysteresis control which has the objective of providing a reliable DC bus for ...
Analysis of quality in Brazilian e-commerce (B2C)
(Springer-verlag Berlin, 2010-12-14)
The business world has changed the way how people think and act on products and services. In this context, the most recent amendment of the scenarios of retail operations has been the use of technology in sales and ...
Controle das principais pragas de grãos armazenados atacando milho BR-451 de alta qualidade protéica.
(In: CONGRESSO NACIONAL DE MILHO E SORGO, 20., 1994, Goiânia. Centro-Oeste: cinturão do milho e do sorgo no Brasil: resumos. Goiania: ABMS, 1994. p. 158., 1994)
Controle de qualidade e teste de vigor na empresa de semente.
(Informativo ABRATES, v. 5, n. 2, p. 63, 1995., 1995)
Multiloop controller and reference generator for a dynamic voltage restorer implementation
This paper deals with the design and analysis of a Dynamic Voltage Restorer output voltage control. Such control is based on a multiloop strategy, with an inner current PID regulator and an outer P+Resonant voltage controller. ...
High Power Quality three phase VSI with LCL filter for distributed generation in microgrid applications
The utilization of voltage source inverters with LCL filters is extended in Distributed Energy System. In these applications, the system is controlled as a current source, however, it can also be controlled as a voltage ...