CONVERTIDOR ELEVADOR CD-CD INTERCALADO PARA APLICACIONES EN MICRO REDES DE CD CON CAPACIDAD DE DISTRIBUCIÓN DE CORRIENTE Y CONEXIÓN EN VIVO (INTERLEAVING DC-DC CONVERTER FOR APPLICATIONS IN DC MICRO-GRIDS WITH CURRENT DISTRIBUTION AND HOT-SWAP CONNECTION CAPABILITY)
Resumen
En este artículo se presenta un método de control de corriente compartida e intercambio en caliente y el diseño de convertidores elevadores CD-CD intercalados, alimentados por paneles solares de 250 W, conectados en paralelo a un bus de 190 V de una micro-red CD. Cada panel solar está conectado a dos convertidores CD-CD intercalados controlados por el circuito LT3782, que es un controlador de modo de corriente. Para la conexión en paralelo al bus de la micro-red, se utiliza el controlador LTC4350 para compartir la corriente suministrada por cada panel al bus de CD, en conjunto con el controlador en modo corriente de los convertidores elevadores, permite un excelente y rápido desempeño en conexión y desconexión en caliente de fuentes de la micro-red. Se presenta un breve estado del arte de las técnicas de compartición de corriente, así como el diseño y la simulación de tres módulos convertidores elevadores intercalados.
Palabras Clave: Boost, Current Sharing, Hot-swap, Interleaving, Micro-red.
Abstract
In this paper, a hot-swap current-sharing control method and the design of an interleaved DC-DC boost converter powered by 250 W PV panels parallel-connected to a 190 V DC micro-grid bus are presented. Each solar panel is connected to two interleaved DC-DC converters controlled by the LT3782 IC, which is a current mode controller. For the micro-grid bus parallel connection, the LTC4350 controller is used to share the current supplied by each PV to the DC bus, in addition to the current mode controller of the boost converter, allowing excelent and fast performance in micro-grid sources hot-swap connection and disconnection. A brief state of the arte of current sharing techniques is presented, as well as the design and simulation of three interleaved boost converter modules.
Keywords: Boost, Current Sharing, Hot-swap, Interleaving, Micro-grid.
Texto completo:
670-690 PDFReferencias
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