Method for input current regulation and active-power filter with input voltage feedforward and output load feedforward
Номер патента: EP1687888A1
Опубликовано: 09-08-2006
Автор(ы): Frank H. Wang, Joe A. Ortiz, Joseph K. Miyamoto
Принадлежит: Raytheon Co
Опубликовано: 09-08-2006
Автор(ы): Frank H. Wang, Joe A. Ortiz, Joseph K. Miyamoto
Принадлежит: Raytheon Co
Реферат: An active-power filter (200) includes control circuitry (202) to combine an integrated output-voltage feedback signal (215), an input-voltage sense signal (211) and an output-load feedforward signal (214) to generate a control signal (216). An output-load subsystem (108) draws the output current from the active-power filter (102) and the output-load feedforward signal (114) indicates when current drawn by an output-load subsystem changes. In some embodiments, the output-load subsystem may draw output current from the power converter having an output current ripple at a nominal frequency, which may range, for example, between about 35 and 100 Hz. The control circuitry may include an integrator (503) to integrate the output-voltage feedback signal (513). The integrator may have a control loop bandwidth significantly less than the nominal ripple frequency to loosely regulate the output voltage while the input current drawn by the active-power filter is tightly regulated.
Method for input current regulation and active-power filter with input voltage feedforward and output load feedforward
Номер патента: WO2005062451A1. Автор: Joe A. Ortiz,Joseph K. Miyamoto,Frank H. Wang. Владелец: Raytheon Company. Дата публикации: 2005-07-07.