(Adds comments from former central bank head Gustavo Franco)

By Walter Brandimarte

MIAMI, April 5 (Reuters) - Brazil's central bank chief Henrique Meirelles said on Saturday the government was committed to a floating currency rate and inflation targets, but did not deny reports that some government officials would be discussing changes to those regimes.

Speaking to reporters in Miami, where he was attending the annual meeting of the Inter-American Development Bank, Meirelles said targeting inflation and specific foreign-exchange levels at the same time were "incompatible" tasks.

"Countries which tried to have cloaked, non-explicit currency targets also had serious inflation problems," he said during a news conference.

Asked whether sectors of the government had debated changes to those regimes, Meirelles said: "What I can say is that Brazil has an inflation-targeting system that has worked exceptionally well, as seen by its recent economic growth, job creation, and the recent inflation trajectory."

"Hence, what is important, and that was reaffirmed by (Finance) Minister (Guido) Mantega in an interview, is that Brazil has an inflation-targeting system, is committed to that, and will not adopt any other regime that would compromise its inflation-targeting system. Period."

The debate about changes in Brazil's orthodox economic policies resurfaced as Latin America's largest economy is expected to post its first current account deficit in 2008, after five consecutive years of surpluses.

The deficits are a result of growing imports and increased profit remittances by multinational companies. But the central bank chief said Brazil did not need to consistently deliver current account surpluses, as strong foreign direct investments were more than enough to finance the outflow.