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Alternative motor windings and drive schemes

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  • Jun 23, 2014,​

    "So here I am looking at my first scratch designed and built carbon blade.

    It came out better than anything I have made before.
    A thorough polish of the mold did pay off well!"

    Tjarko​
    Attached Files
    State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
    MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

    Comment


    • Originally posted by Clugh View Post
      Hallo Ralph,
      Bei 20-Gang-Motoren kannst du den 200 Gramm schweren Oldtimer mit 25.000 U/min, den du bauen willst, einfach wegwerfen, denn die neuen Autos sind technisch besser und leichter, haben einen kleineren Luftspalt und eine bessere Topologie als 14-polige Motoren. 10-polige Motoren sind in den neuen Autos fast veraltet. In realen Tests wiesen 10-polige Motoren eine stärkere modale Unsymmetrie in den Kernen auf, daher bauen die meisten jetzt 14-polige Motoren. Sogar die A-Serie von Scorpion, die effizienteren Scorpions, sind 14-polig. Nur Michael, der die späten 8-plus-Modelle baut, will diese alten Autos. Der COTS AOS 3220 Supernova erfüllt bereits die Anforderungen des Funjets. Der 3220 wiegt 165 Gramm und leistet 3,1 kW bei 69 Ampere. Bei 12 s (3,4 V) Lipo liegt die Drehzahl bei 28.560 U/min. Da Sie einen billigen Sequire fahren möchten, der bereits stottert, statt des ebenso günstigen F3 120 oder 200 von APD, müssen Sie lernen, seine 32-Bit-Architektureinstellungen zu verwenden. Ich sehe keinen von Ihnen, der die Tiefpassfilterfunktion mit einer Beta-Flight-Flugkarte verwendet. Ich schätze, die Marktführer wissen nicht, wie sie die ARM-basierten ESCs voll ausnutzen können. AOS wird mit empfohlenen PID-Einstellungen für die Flugkarte geliefert, haben Sie das gesehen? Mit 22.000 analytischen FEMM-Simulationen haben sie mehr Daten, als Powerditto sich für einen Scorpion Knocker erträumen könnte. Sie bekommen mit einem Powercroco-Motor keine aufgezeichneten Motorkonstanten, die Sie vor dem Kauf in Simulatoren eingeben können. Alle anderen bieten Ihnen diese Daten. Das AOS ist 5 % effizienter und reagiert ungefähr 20 % schneller auf Gasänderungen. Mit dem leichteren Rotor reagiert es viel schneller. Der Powercroco Classic Care-Vorschlag ist 35 Gramm schwerer.

      Der Motor kostet 75 US-Dollar

      Können Sie mit den Zöllen umgehen? Ich weiß, dass Sie ausgezeichnete Beziehungen zu China pflegen.
      Jetzt, da Sie hier im Unterricht sind, Dr. Okon, möchte ich sicherstellen, dass Sie dies lesen …


      AOS Presets for Betaflight 4.4 are here!
      Betaflight 4.5 Filter Tuning
      Betaflight 4.5 PID Tuning

      Sie wissen, dass ich weiß, dass Sie keine Ahnung von Wechselrichtern haben.

      Danke
      Hubert
      State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
      MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

      Comment


      • You do not like APD, but want the Chinese drive Okon?


        I have to tell you, it only has a maximum amp of 250 amps, so it's really no comparison to many 200amp inverters. The Castle 200, for example, can log over 380 amps without missing a single beat. I have determined this empirically on board. The regulators have lasted for over 12 years without any problems. The on-resistance is also lower. Have you actually checked the on-resistance of the Sequire? The APD F3 200 can handle 300 amps and has features that the Sequire doesn't.

        Does a Sequire even have a data logger suite? Did you ask yourself all these questions before you installed it on a plane under €2,000? The APD is a 14s LiPo and weighs only 36 grams! The Sequire weighs 155 grams. This is 5.5 times heavier than the APD. PWM and timing have automatic modes with APD. With APD, you get PWM frequency dithering and active phase current degaussing, allowing for smooth control with virtually all powertrain combinations with peak powers up to 18 kW.


        Okon mag den APD nicht, möchte aber den chinesischen Antrieb? Ich muss dir sagen, er hat nur einen maximalen Strom von 250 Ampere, also ist er wirklich kein Vergleich zu vielen 200-Ampere-Wechselrichtern. Der Castle 200 zum Beispiel kann über 380 Ampere protokollieren, ohne einen einzigen Zyklus zu verpassen. Das habe ich empirisch im Boot ermittelt. Die Regler haben über 12 Jahre problemlos gehalten. Der Einschaltwiderstand ist auch niedriger. Hast du eigentlich den Einschaltwiderstand des Sequire überprüft? Der APD F3 200 kann 300 Ampere verarbeiten und hat Funktionen, die der Sequire nicht hat.

        Hat ein Sequire überhaupt eine Datenlogger-Suite? Hast du dir all diese Fragen gestellt, bevor du ihn in ein Flugzeug unter 2.000 € eingebaut hast? Der APD ist ein 14s-LiPo und wiegt nur 36 Gramm! Der Sequire wiegt 155 Gramm. Das ist 5,5-mal schwerer als der APD. PWM und Timing verfügen mit APD über automatische Modi. Mit APD erhalten Sie PWM-Frequenzdithering und aktive Phasenstromentmagnetisierung, was eine reibungslose Steuerung mit praktisch allen Antriebsstrangkombinationen mit Spitzenleistungen von bis zu 18 kW ermöglicht.​

        APD weist den niedrigsten Widerstand in der Klasse auf. Der alte YGE weist einen der höchsten auf.

        State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
        MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

        Comment




        • Perhaps Micha can explain the PWM dithering technique used by APD to crocoworld. The ARM-32 chipset in the Sequire is likely suitable for this, but is it integrated into the firmware?

          Welcher echte Scorpion-Fan würde einen Tribunus-Wechselrichter auf die Rückseite drehen, um einen Sequire aufzuladen, es sei denn, er wäre einfach nur billig? Die Scorpion-Wechselrichter werden wahrscheinlich von derselben Firma in Hongkong oder nur wenige Meter entfernt hergestellt.
          State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
          MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

          Comment


          • Schließlich verwendet der APD eine synchrone Gleichrichtung. Nur High-End-Laufwerke wie MGM Comp Pro verfügen über diese Funktion. APD ist der Wechselrichter mit der höchsten Leistungsdichte seiner Klasse

            Der F3 200 ist zudem erschwinglich.

            State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
            MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

            Comment


            • Within the size constraints of a 5050 and 10 pole rotor 9 slots make the most sense. It will leave you more room for copper and wider teeth and it already has a higher winding factor a lower torque ripple. A 9 pole machine willl have wider crest in its waveform.so It is more trapezoidal than a 12 slot 10 pole motor.. It will run will less commutation ripple on a sequre style drone inverter, which is a trap drive like 99% of the drone inverters are. APD is a proprietary FOC to trap at WOT.. Its going to give MTPA all the way to wide open,.
              State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
              MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

              Comment


              • Speedtaugliche günstige Coptermotore | RC-Network.de

                Verdammt, Ralph, das hat nicht lange gedauert..Sie sind bereit für neue und moderne Autos mit grüner Energie!!!!


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                Hubert.
                Attached Files
                State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                Comment


                • Click image for larger version  Name:	image.png Views:	0 Size:	262.8 KB ID:	432176



                  Seltsame Leute, die einen neuen Thread eröffnen, wenn Thomas das schon hinter sich hat. Ich weiß nicht, warum das Forum sauer auf ihn ist. Er und Alois sind die einzigen, die Daten hinterlassen. Übrigens war Emaxx schon immer führend bei Drohnenmotoren, und der Eco II hatte mehr Schub als der AOS 2807, war aber etwas schwerer. Emaxx hat eine neue Serie, und ich bin ziemlich sicher, dass sie mit dem AOS konkurrieren kann, weil sie bereits mehr Schub hatte, aber jetzt leichter ist und bereits ab Werk eine Einzeldrahtwicklung hat. Der AOS ist ästhetisch so ansprechend, dass Sie ihn trotzdem kaufen werden, aber dieser hier wird genauso gut oder sogar besser funktionieren als der AOS. Emaxx stellt auch einen 2808 her. Wenn Sie einen größeren wollen, können Sie sich einen 3115 Eco II von Emax ansehen. Wieder hatte der ECO III den größten Schub von allen getesteten Drohnenmotoren, einschließlich AOS. Sogar AOS hat dies auf einem Prüfstand bestätigt. Ein AOS-Video bestätigt auch, dass der Motor 49 Gramm wiegt und nicht 47, wie in der Anzeige angegeben. Der Emaxx hat einen Durchmesser von 49,6, verwendet jedoch einen dickeren Draht und erzeugt mehr Schub am Propeller.

                  Eine Cobra ist ebenfalls sehr konkurrenzfähig, sie hatte sogar höhere Spitzenwerte als die Emaxx RS II-Serie. Das habe ich dir vor sechs Jahren erzählt. Du warst bei Bruder Hobbys hängengeblieben.


                  Attached Files
                  State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                  MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                  Comment


                  • The emaxx is 25.99 dollars... the AOS is a beautiful machines at 42.99 dollars but you're paying for aesthetics and .6 grams lighter not more thrust.

                    You have to measure the bell weight of each machine to determine which has the lowest moment of inertia. The lower the faster the accelerator. But be aware the emaxx uses stronger components like the hardened steel shaft and a rubber grommet to absorb axial shock to help out the bearings.

                    Motors in these sizes are perfect candidates for Ag windings. The gauges available in silver suit the smaller machines. It will push the cost to around 100 dollars per 50 gram motor but they will perform better and have ;lower resitance than any Cu wound machine.

                    Ag is about 12 dollars a foot in a small guage
                    State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                    MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                    Comment


                    • Edit the emax is 49.6 grams. The motor's diameter is 34.8 mm

                      The Dr and his friends were informed about Emaxx 6 years ago so he hardly leads anything to just be onto drone motors in 2025!
                      State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                      MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                      Comment


                      • Click image for larger version  Name:	image.png Views:	0 Size:	980.7 KB ID:	432180​You banned it! seven years ago but I'm still here and you are still reading me. Since then you all have started 2 hybrid threads and neither one has produced any data or a running motor and my motor just captured the WC is F3A in 2025!


                        Study hard.

                        State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                        MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                        Comment


                        • Click image for larger version

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                          If it were me in motors this size I like the Escape from Jiri models. Shes around 300.00 usd. Its super sexy! @ 250 grams



                          State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                          MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                          Comment


                          • In direct drive they would also work well on the normal q40 diesel style nitromethane pylon planes you'd all be familiar with. The drone motors do in fact have higher power to weigh ratios than most bldc motors slated for heli use. The drone motors are made light on purpose. The drone industry drives all the trends currently in motor and inverter development. Thats a fact and all the big dogs like Thiokol and General Dynamis are in.

                            So that's real rocket science baby.... The winding Dr in Germany and his unpublished non peer reviewed powerditto with the black and gold heli motors built with standard materials simply doesn't run the show!
                            State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                            MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                            Comment


                            • The Emaxx and AOS Supernova 2807's are on the way. You don't need a calculator to find out which motor is most efficient. All you need is a tachometer and real torque measure. A large strong metal gear servo can deliver the data much better than any prop calculator on a computer. They have a holding torque based on amperage. All you need is a few weights to calibrate it and correlate holding torque to amperage. If you mount a drone motor on axis with the servos spindle the amperage to hold it still while driving a prop is you torque rating. Once you have that and the rpm you know the mechanical power. . A watt meter on the front end tells you the electrical power. Its really simple the reactionary torque measure will be immune to rpm limits. When measuring the motor I really care less about the Thrust actually because a lot of that is determined by the propeller and it's design. All 7x10's do not have to have the same blade design. Propeller pitch is just one thing to consider..

                              After you take a few amperage readings with a few different said calibrated weights on a 1 ft lever arm mounted to the servo you can find the holding torque per amp function through regression. One you do that you will know approximately every y for the x .

                              The real efficiency measure is the mechanical out divided by the electrical in. An eagle tree and a few sensors can capture and accurately log all the data on a kitchen top.

                              If you drop the function in excel you can also plot it that way but the eagle tree is a raw csv. dump. I already have an Artemus open logger so ill probably just try to use that. the Eagle tree is going to be simpler to use.

                              EagleTree Heavy Duty E-Logger V4 with Wire Leads, 80 Volts, 150 Amps

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                              ​​
                              Attached Files
                              State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                              MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                              Comment


                              • ORRRR You can also just buy a performance test stand for small drone motors already built.....
                                State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                                Comment


                                • Click image for larger version  Name:	20190426_161145.jpg Views:	0 Size:	56.2 KB ID:	432201
                                  I beta tested the 20S 1200.00 HV pro APD PROTOTYPE at Daimler and showed Dr Okon the micro 6 s lipo 40 amp/100 peak amp F3 40 APD☝ that weighs 3/10ths of a gram 6 years ago. Two in a dual 3 phase topology would support 200 amp peaks have virtually no stress on the PM and still weigh less than a gram! This inverter can run a 14 pole over 100,000 rpm or till it explodes. So you can add 6/10ths gram to what the AOS Supernova weighs for the complete dual 3 phase power system. The weight less wire. is going to be around 50 grams tops....
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                                  No one in the world on a hobby forum but the owners AJ and Tony held the APD pro inverter before me. It didn't even have silk-screening or a brand badge yet when I showed it to the Dr and his friendly forums up and close for the first time. The Dr and his friends have been behind for years in inverter technology and they didn't want a thing to do with me or this equipment that I tried to show them 6 years ago.
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                                  By the time they get on it it will be obsolete!!!!

                                  A Sequre ...ru serious???


                                  TTYBL
                                  Hubert
                                  State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                  MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                                  Comment


                                  • Click image for larger version  Name:	2.png Views:	0 Size:	297.3 KB ID:	432206

                                    Here is the dual 3 phase 12N10/14P wiring can you see it? It is going to make more power with less ac losses in the rotor and PM. The rotor is going to totally quiet down with less vibration and run cooler.

                                    You need to listen. I'm trying to help you. Do you see the definitive boost in the 5th and 7th torque producing harmonics and the full elimination of the 1st that eats the rotor? This semi 6 phase technology is industry proven to work on a plethora of topologies and motor types. It has to especially on a six step drive because it is always 4 phases active at any given time during commutation. In the convention it is only 2. It has much more current headroom. It is going to be stiffer in its power delivery then....

                                    The waveform that each inverter sees on a half of the stator is also more trapezoidal as proved by the BLDC harmonics it boost and the one it attenuates. It is not a sinus machine quite clearly !! or sinus inverter that runs it . 6 steps BL HELI is a trap!!! You can confirm this by driving the motors with a prime mover at applicable speeds and measuring the half stator windings generated BEMF on a scope and you will see.
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                                    The other result is less commutation ripple.

                                    Thank you for your time and patience,
                                    Hubert
                                    State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                    MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                                    Comment


                                    • Click image for larger version  Name:	image.png Views:	0 Size:	124.3 KB ID:	432231​So you will try to lighten the Sequre and make it "APD" like.

                                      Ok good luck....
                                      but when you remove the extra heat sink you will lower the power handling of the inverter. The APD does it's numbers without a heat sink as long as it sees 30 m/s airflow to the FETS. That's something to consider about the most power dense drive on the market. The Sequre PCB doesn't have 8 layers of copper that's why it uses buss bars. The cheap way to try to carry more current Ralph....

                                      U would not do it this way for highest power density. Flat wide copper planes are better. Peters telemetry project with the Sequre is really cool but I don't think much about the inverters weigh or current handling performance outside of that. The telemetry dongle he is building will work with almost any inverter if it works with the sequre.



                                      Later
                                      Hubert
                                      State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                      MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                                      Comment


                                      • I just ordered the AOS supernona and the EMAXX EIII from get FPV.com but I should have shopped around for the AOS because as soon as I purchased it for 40 dollars I found it for 30.

                                        AOS Supernova 2807 1400KV - 7" FPV Motor - MyFPV


                                        One nice thing about it is it comes standard with NSK bearings. I prefer them over a NMB.
                                        Attached Files
                                        State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                        MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

                                        Comment


                                        • Here is the Emaxx EIII series.
                                          Attached Files
                                          State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                          MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​​

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