Robert, An AC motor is by definition a motor that needs 3-phase (or more) AC power. The direction of power (acceleration or braking) is only determined by the phase (direction) of the current. So, an AC controller will always automatically include the ability to do regen.
The requirement for example with the Toyota Prius from MY 2004 onward to use a bi-directional boost converter is because the engineers wanted to use a 200V battery as well as have 500V at the inverter to increase power and speed over the 300V that was the battery voltage of the 2001-2003 Prius. Hope this clarifies, Cor van de Water Chief Scientist Proxim Wireless office +1 408 383 7626 Skype: cor_van_de_water XoIP +31 87 784 1130 private: cvandewater.info http://www.proxim.com This email message (including any attachments) contains confidential and proprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of ROBERT via EV Sent: Monday, January 02, 2017 3:10 PM To: ev@lists.evdl.org Subject: [EVDL] Regen on AC Inverter In order to accomplish regen with an AC inverter on an all electric vehicle are the IGBTs modulated or is a buck boost circuit added to the inverter? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20170102/5e29 7b37/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)