The design of the Madeira River Complex incorporated new technologies, both in generation, with the use of the bulb type turbines, as in Back-to-Back, converter stations that employ CCC technology (Capacitor Commutated Converter).

In November 2013, the first dipole of dc ± 600 kV of Porto Velho converter became operational for Araraquara 2 substation, initiating the flow of energy generated in the Santo Antônio and Jirau plants directly to the state of São Paulo. However, this first stage of integration of the first dipole was characterized by a small number of generating units in the Santo Antônio and Jirau plants, as well as the unavailability of the Master Control, equipment responsible for ensuring the integrity of the equipments and system security. This unavailability was caused by the delay in the implementation of Generator Station Coordinators (GSC), equipments responsible for transmitting information from the plants to the Master Control.

This intermediate configuration imposed power limitations in the bipole, enabling operation with monopolar metallic return and only one filter 263 Mvar in the collector substation of Porto Velho 500 kV, limiting the maximum flow in a 700 MW direct current system.

The schedule for the entry in operation of the flow of power transmitted by the two dipoles CC between Porto Velho and Araraquara system suffered a major delay, which required several actions taken by ONS to minimize the possible limitations. The main challenge is to design complementary actions of control and systemic protection that consider the particular characteristics of the system.