KichTuDocLap (22).pdf - Đồ án điện tử công suất...

This preview shows page 1 out of 1 page.

Đồ án đ i n t công su t 21 α 2 = 0 α α 1 = 0 (2) 30 (1) 60 90 u c2 u c1 120 150 α 1 =180 α 2 = 150 180 Ch ươ ng III XÂY D NG CHI TI T TOÀN B S Ơ ĐỒ NGUYÊN LÝ M CH THI T K I GI I THI U V NGUYÊN T C Đ I U KHI N CHUNG a.Nguyªn t¾c : T¹i cïng mét thêi ®iÓm c¶ hai bé biÕn ®æi ®Òu nhËn ® îc xung ®iÒu khiÓn, nh ng chØ cã mét bé biÕn ®æi l μ m viÖc cÊp dßng cho t¶i cßn bé biÕn ®æi kia l μ m viÖc ë chÕ ®é ®îi. Nh vËy lóc n μ o hai bé còng ®ång thêi ch¹y do ®ã m μ nã kh«ng cßn thêi gian chÕt trong qu¸ tr×nh ®¶o chiÒu dßng ®iÖn, v× vËy ®é t¸c ®éng l μ nhanh nhÊt. Tuy nhiªn do hai bé ®Òu ch¹y nªn sÏ cã kh¼ n¨ng cã dßng ®iÖn xuyªn qua hai bé g©y ng¾n m¹ch nguån cho nªn ta ph¶i ®
Image of page 1
  • Spring '16
  • Stephanie Moore

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern