Load-balancing device on a polyphase network

摘要

A load-balancing device includes a control module, and a converter for generating a voltage supplying a single-phase electrical load connected to a polyphase electrical network. The converter selectively modifies a phase shift between its output and phases of the polyphase electrical network. The control module controls synchronization of the output with a first phase of the network and its progressive phase shifting when it is synchronized with a second phase of the polyphase electrical network. It also controls connection of the load to the network and to the converter when the converter and first phase are synchronized. The control module maintains disconnection of the load from the network during the progressive phase shifting of the converter output voltage, and controls its connection the second phase of the network when its output is synchronized with the second phase.

主权项

1. An apparatus comprising a load-balancing device for load balancing on a polyphase electrical network, said load-balancing device comprising:
a voltage conversion device comprising a converter configured for generating a converter output voltage selectively connected to supply a single-phase electrical load to said polyphase electrical network, said converter being configured to selectively modify a phase shift between said converter output voltage and phases of said polyphase electrical network, a control module for controlling synchronization of said voltage conversion device, said control module being configured to control synchronization of said convener output voltage with a first phase of said polyphase electrical network, to control a progressive phase shifting of said converter output voltage until said converter output voltage is synchronized with a second phase of said polyphase electrical network, to control connection of said single-phase electrical load to said polyphase electrical network, to control connection of said electrical load to said converter output voltage when said converter is synchronized with said first phase of said polyphase electrical network, to maintain disconnection of said electrical load from said polyphase electrical network during said progressive phase shifting of said converter output voltage, and to control connection of said electrical load to said second phase of said polyphase electrical network when said converter output voltage is synchronized with said second phase of said polyphase electrical network.