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Alternative motor windings and drive schemes

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  • Hi Hubert,
    well, the 1 kilo knocker could be much smaller if the torque output was used with proper iron cross sections. The sensors record the rotor position and make synclos unnecessary. That that one. And it doesn't stop anyone from simply building a lower-pole outer rotor that matches the sheets at the pole change frequency and runs with CFRP in speed regions that the others don't allow. You could also think about pure air coil outrunners with simple ferrite ring cores like we did with the motor/generators in the flywheel storage. Power density top, speed with up to Mach 2 circumferential speed really high. Attached is a picture of the Cyclon outrunner with 4-pole rotor bell. Simple winding with winding factor 1.

    Happy Amps Christian
    Attached Files

    Comment


    • Originally posted by Chxpress View Post
      Hi Hubert,
      well, the 1 kilo knocker could be much smaller if the torque output was used with proper iron cross sections. The sensors record the rotor position and make synclos unnecessary. That that one. And it doesn't stop anyone from simply building a lower-pole outer rotor that matches the sheets at the pole change frequency and runs with CFRP in speed regions that the others don't allow. You could also think about pure air coil outrunners with simple ferrite ring cores like we did with the motor/generators in the flywheel storage. Power density top, speed with up to Mach 2 circumferential speed really high. Attached is a picture of the Cyclon outrunner with 4-pole rotor bell. Simple winding with winding factor 1.

      Happy Amps Christian
      Then the 24N8P Xnova are certainly better for highspeed operation in an outrunner. I thought A-boy tried the 12N4pole outrunner and had issue. What was the problem there. Its is archived on helifreaks with him saying "no" . Dont you remember? There was a time where Ralph had the gravatas to talk to me technically . You can also reach a Kw of 1 with the right width stator teeth. You have to utilize UTEW configurations. I showed them he brings up Actro but has done no published work himself on the subject matter. He doesn't want to innovate because he is greedy and cheap. Mr 5 dollar bearings wnts the customers to be satisfied with old technology. See him pushing the old ass inverter with the highest internal resistance in class.

      The date is clearly wrong it was last January when I printed this. I want these cores and otheres like it cut from solid alpha iron. Do you have someone that can perform the EDM service or Im going to buy one...😶

      Click image for larger version  Name:	20220113_072835_4161e9f17768ddb9c8bb4ec59b3d27d305f08916.jpg Views:	0 Size:	101.1 KB ID:	413127

      Comment


      • Boho1
        Member
        Last Activity: Today, 06:43 AM
        Joined: Sep 13, 2023
        Location:​

        Also keep in mind that the fly is always on the wall in here so if it is something you only want me to have you have to PM it. He's here as we can see the remote responses so be mindful of that. They camp here permanently its not just him. The entire A-Klan reads here, Are there any other RC active motor forums in the world? I don't think so. Look around. All dead where we are not present except crocoworld where he can call you imposter 100 times and the moderator has nothing to say about sticking to the topic when he constantly veers off. What do the plates and POCBOI have to do with his knocker engines burning up?

        ABSOLUTELY NOTHING!

        dont say anything Christian but....

        Turd Giese is special. I see it! and isnt it funny helifreaks has no one to wind motors for them anymore but him and he does nothing for them or Rick the ruler.

        A Customer/moderator...🙄

        The vender from Dresden is pushing his scorpion products not motor tech. Its pretty simple.

        Hubert

        Comment


        • Addendum: Marian shares your account and my opinion on the continuing overload.

          Reading and evaluating the log and drawing the right conclusions can help.
          But very few do. Not to mention the sensible interpretation of the curves.

          By the way, revving up again is not without its problems: the controller has to constantly test what could work again with the possible consequences of the highest possible partial load....​
          ~powercroco~

          Comment


          • Ha you Thomas and Marian dont know much then. The YGE inverter is 6 step at wot and is no longer looking at partial load but in open loop operation. Nothing about the vehicle type changes the residual inductance and temperature of the magnets where adequate field is loss to commutate properly or the motor simply cannot deliver the pullout torque demanded in an instant. Did you not know that YGE has a AFW not nearly the quality of a MGM, Kosmic, or APD. The "expert" and his opinion with no degree also do not consider what's happening when the motor has a lower resistance than the inverter.

            Its possible with the YGE's... ask heino what happens in that scenario.

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            • Click image for larger version  Name:	1539.png Views:	0 Size:	282.2 KB ID:	413133

              Then learn yourself Ralph how to interpret a graph because you said the plots aren't real if the Speedline is not above the efficiency line. LOL but all that can be dictated by the plot window you select.

              Christian this is a plot of a 1539 half turn delta where i asked for a ft pound at 90000 rpm. Its below the line right?

              Comment


              • Click image for larger version  Name:	15392.png Views:	0 Size:	297.6 KB ID:	413135 Same motor plot Ralph only the window shows to 100% stall now. Its the same manipulation Thomas did in the bogus Lehner test where he bias tested the motors at 2 s lipo to keep the scorpion out it loss zones at HIGHSPEED. It isn't below the speed line now is it expert? Hobby motors only work within the first 5 percent of the plot anyway. In this case were looking at the area of about 1.35nm, can you interpret the plots? Do you see max shaft power at half speed (50%). We never get anywhere close in a hobby application so what about speed stiffness again? Look to the extreme left for answers AFD!

                LOL

                Hubert

                Comment


                • And about those test Christian. Have you explored field weakening with your 41 series? Also if an air core motor is good in some cases so then should be a composite stator with low iron content wrapped. The diameter of the coils based off variable tooth thickness will still have a tunable Q. You may have highspeed run away so this motor is dangerous in an open loop. No electrical speed limit. Like a dc shunt motor.

                  TTYL
                  Hubert

                  Comment


                  • The test development is over.
                    Was only 6+6x1.0YY in rotationally symmetrical 3 group winding for n spec determination for further calculation. Appendixes
                    • 100_3639.jpg
                      100_3639.jpg
                      476.6 KB · Views: 0

                    VG Ralph

                    Back on topic huh? 😂

                    but Micheal says only YGE is suitable for speed flight so what this from the APD?


                    01.09.2020 Dzhamal's HK 5050 Speed engine was badly damaged in a high-speed crash.
                    The cause of the crash was aileron flutter on the "Big Monster" of HJK Speedwings, probably caused by the completely internal rudder linkages.
                    Before that, however, the motor was able to show that it was able to convert up to 24kW peak power from 16S without any problems

                    ~powerditto~​

                    DZhamel runs APD...

                    Why you remove that epithetic signature. I miss it already.....🖤

                    "the test development is over....."


                    Hubert

                    Comment


                    • At highspeed like you would want for a high ratio gearbox or a direct drive fast electric boat the 12N10P topology like you find in a scorpion wont touch this.

                      Click image for larger version  Name:	1x-nova-4020-series.jpg Views:	0 Size:	42.1 KB ID:	413173

                      4020 outrunner motors | XNOVA MOTORS

                      24N8P

                      Kw=1

                      Comment


                      • Hi Borat

                        Too bad this one is 24 slots .You gonna load a 50 series in a speedfire2

                        Funny.

                        So no time for a clown today . The cooling channels on the XNOVA only means its better cooled so it can make better use of less if that were the case. Tooth thickness alone hardly tells the entire story and hardly makes any machine identical to another in performance but at least the speed klan of 20 buys that story and fills the benevolent offering plate being passed around in their exclusive world. The amateurs assessment that does not mention the difference in tooth tip geometry and how that affects the Q and D axis inductance tells me who the real imposter is.

                        Because some goofball superimposes one stator over another to show minor similarities highlights there photoshop skills but it doesn't mean a damn thing about the motors comparative performance.

                        Id think that was obvious but clearly people have very imaginative ideas floating around in their head that lack any scientific method. And have replaced that with your photo shopped photo as some proving ground without a single number.

                        Youve already plotted your own 50 series scorpion and the efficiency is lower....

                        All people have to do is fly the difference



                        Hubert

                        Comment


                        • How in the hell can winding loss be the only factor if the damn pm in the rotors are failing. The motor cant commutate properly without good ones!!! Thats iron loss due to slot harmonics and at 44000 rpm Ill be damned if that in a 10 or 14 pole motor isn't as relevant as the fat wire well over a kilo.

                          pure wunderbar!

                          Comment


                          • Hi Christian,

                            Seems to me the in power and rpm the paper points to a motor like a 3 slot 2 pole car motor with a gear box. I know you already built one a millennia ago.


                            I also understand in a kitchen lab how to segment the rotor disk pm similar to Lehner.

                            Thank you for the paper
                            Hubert

                            Comment


                            • You can kill the magnets with heat also assemble the rotor then re energize with high voltage. 2 poles would be the simplest.

                              Comment


                              • Hey Borat,



                                Wie zum Teufel kann der Wicklungsverlust der einzige Faktor sein, wenn die verdammten PMs in den Rotoren ausfallen? Der PMBLDC-Motor kann ohne ein gutes PM nicht richtig kommutieren!!! Das ist Eisenverlust aufgrund von Nutoberwellen und bei 44.000 U/min bei einem 10- oder 14-poligen Motor, verdammt, wenn das nicht so relevant ist wie der dicke 3-Pfund-Draht.

                                einfach wunderbar!​

                                Hubert

                                Comment


                                • Click image for larger version  Name:	50sc-vs-k-2.jpg Views:	7 Size:	75.3 KB ID:	413252
                                  Ralph,
                                  Ich wünschte, du wärst kein Tastatur-Jockey und würdest hier ganz offen mit Christian und mir über deine Theorien sprechen. Ich liebe die übereinandergelegten Fotos der Motoren, aber abgesehen davon, dass die Zahnspitzen nicht gleich sind, sind auch keine Rotoren oder PMs gleich und wenn ich mich nicht irre, sind es bei sorgfältiger Messung auch die Luftspalte nicht.

                                  Die Leute könnten einen direkteren Ansatz respektieren als einen 1boho-Betrüger, also lasst uns 2025 zusammenkommen.​

                                  Comment


                                  • Wickeln Sie jeden Motor mit einer Dreieck- und dann einer Sternwicklung und notieren Sie die Kv-Werte. Für Betrüger wie uns können Sie sogar die BEMF-Wellenform und die FFT-Erfassung jeder Maschine bei der entsprechenden Geschwindigkeit zeigen. Sie werden wahrscheinlich sagen, dass die Hundehütte nicht genug einbringt.

                                    Aber ich hoffe, Sie besitzen wenigstens ein Oszilloskop ... Thomas und seine Bleistiftdiagramme, die er gemacht hat, interessieren mich nicht. Zeigen Sie uns das. Die Wellenformerfassung sollte sicherlich jedes Gerät ruinieren.

                                    Bitten Sie diese bloßen Augen, Ihnen den Durchmesser der Punkte zu nennen, und Sie werden sehen, dass sie auf den Mikrometer genau erkennen. LOL, was für ein Witz, Mann. Versuchen Sie es mit einem Messschieber.​

                                    Apropos optische Täuschungen, und lassen Sie drei Motoren übereinander fotokopieren, mit drei Punkten aus Fensterfarbe, die darauf geklebt sind.

                                    Mann, bist du verrückt ...​



                                    Thank you,
                                    Hubert

                                    Comment


                                    • ...

                                      Comment


                                      • Well, or CL's big-mouthed Amibuddy comes jetting across the pond with its super drives developed under the application of the latest theoretical findings made of alpha-iron with flow barriers in the stator, half-stream in the rotor and ferrofluid in the air gap and super cooling mumpe on the winding - if not with water cooling - and makes all European pilots look totally old!
                                        He still has almost half a year to put his groundbreaking ideas into practice and test them.
                                        With the impostor as a caller in the team, he is probably already as good as certain of victory!
                                        There will probably still be a starting place reserved for him or at least free!

                                        That's the only reason why I've already offered an extra Croco special rating for all the losers with their own trophy as a precaution.

                                        The battery problem regarding the load voltage can be solved like Kai by a 2P arrangement of smaller cells.

                                        Maybe I'll add a 5050 to my HS-2-4k. Designed for age-appropriate 6S and 150A. The plane remains quite light in total,
                                        my excel sheet tells me.





                                        VG Ralph



                                        oh snap....Borat got his get back remotely.

                                        Hubert

                                        Comment


                                        • Wenn nur ein Typ hier alles sagen könnte. Aber zumindest hast du bestätigt, dass du im anderen Teich bist. Und ich schätze, ein Typ hat keine Wellenformaufzeichnung, um zu beweisen, was er über Motorähnlichkeiten sagt, also sind wir jetzt wieder bei einem nicht-faktischen Trugschluss und dem gleichen alten Mist unter dem Weihnachtsbaum.

                                          Und dann ist da noch Michael, und APD wird einen Satz später wieder gültig.

                                          Du und deine kleinen Freunde repräsentieren kaum die Gesamtheit der europäischen Piloten. Und sie sind hier nicht in Frage gestellt, deine überlasteten Motoren sind es, also bleib bei den Nörglern und all ihren Fehlern.

                                          Halt meinen Mund mit etwas Realismus über einen Trottel mit Elektromotoren.​



                                          Hubert

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