Comparison of one cycle control of charge and current for bi-directional boost rectifiers

Classical control and one cycle control of current are popular methods used to modulate pulses in active rectifiers for ac-dc power conversion. One cycle control has lower control complexity and can be implemented using linear analog circuits when compared with the classical approach. However, it also suffers from problems such as instability and offsets in current that is severe at light load conditions. A control strategy for bidirectional boost rectifiers based on one cycle control of charge is proposed for that overcomes these limitations. The integral of sensed current, which represents charge, is compared with a non-linear carrier, which is modified for ac-dc power conversion. This generates the gating signals for the switching devices. The modifications required for the control law governing one cycle control of charge is derived in the paper. Detailed simulation studies are carried out to compare one cycle control of current with the proposed method for ac-dc power conversion, which are validated on a laboratory hardware prototype.

O clero no parlamento brasileiro : Senado do Império

v. 1. 1826-1840 -- v. 2. 1840-1889 : índice de pessoas, índice de assuntos. Inclui notas explicativas, bibliográficas e índice.

Conseils hygiéniques aux habitants de Paris pendant le siège, suivis des arrêtés municipaux concernant l'hygiène et la salubrité publiques / (Signé : Le Dr Onimus)

Comprend : Arrêtés municipaux concernant l'hygiène et la salubrité publiques [à Paris]

Analysis of the late correspondence between our administration and Great Britain & France, with an attempt to show what are the real causes of the failure of the negotiation.

Ten pieces originally published in the Columbian Centinel. A later edition with imprint New York, Printed for E. Sargeant, 1809, contains two additional pieces.

The road to peace, commerce, wealth, and happiness /

Attributed to John Lowell. Cf. NUC pre-1956 imprints.

Supplement to the late analysis of the public correspondence between our Cabinet and those of France and G. Britain /

Caption title.

The road to peace, commerce, wealth, and happiness

Attributed to John Lowell. Cf. NUC pre-1956 imprints. Caption title. Shaw and Shoemaker

Thoughts upon the conduct of our administration in relation both to Great Britain and France, more especially in reference to the late negotiation, concerning the attack on the Chesapeake

Printed at the Repertory Office

Les cycles d'azulejos de l'église du couvent de Louriçal (Portugal) attribués à Valentim de Almeida (1692-1779)

Pour respecter les droits d'auteur, la version électronique de ce mémoire a été dépouillée de ses documents visuels et audio-visuels. La version intégrale du mémoire a été déposée au Service de la gestion des documents et des archives de l'Université de Montréal