Questions tagged [regenerative]
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28 questions
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Regenerative currents and back-EMF
I am using Cubemars' AK70-10 KV 100 BLDC (which I believe has the driver board V2.1) and in some cases I am running the current against my movement and even performing some fast decelerations. I have ...
2
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1
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Regenerative braking with BLDC and buck converter
I am working on an electric vehicle as a personal side project (a couch) and it is driven by 4 BLDC hoverboard motors and using aftermarket 3 Phase Motor Controllers. The couch is powered by a 2P6S ...
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2
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What is the DC voltage during regenerative braking in a battery–inverter–induction motor system?
Question:
I have a system: Battery → Inverter → 3-phase Induction Motor (no boost converter or DC capacitor).
In motoring mode, with a 100 V battery and modulation index m = 1, the inverter outputs a ...
2
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2
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How to Use a BLDC Motor with VESC to Create Adjustable Resistance for a Stationary Bike?
I'm working on a project to convert a regular bicycle into a stationary exercise bike, and I'm exploring the possibility of using a BLDC motor controlled by a VESC to create resistance on the rear ...
- 29
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2
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Back EMF regulator for brushed DC motor
I have a simple brushed DC motor controlled and expecting some sort of Back EMF when the motor switches its directions.. Motor will be running at 50V and 5A. I have no design experiences in Back EMF ...
- 359
1
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1
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How to remove regen from a motor to prevent damaging the source?
I have a motor which controls a wheel, the wheel has no friction braking so I need to use regen to slow the motor down. The supply is 24V through a DCDC down from ~400V. As the DCDC is not ...
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0
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1
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Generator With Adjustable Resistance
I'm currently working on a project that uses a DC brushed motor (24V, 350W) as a generator. I want to be able to adjust the resistance of the generator. The device will be battery powered, so ideally ...
- 226
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LTspice Error: Time step too small error
I want to simulate this circuit but in LTspice it shows this type of error. Is there a software problem or a problem in my design?
I designed this circuit for Regen clamping High side switching for ...
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2
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1
answer
303
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How to limit motor current during fast deceleration and regenerative load?
For a voltage source inverter which is used to drive a PMSM motor (using field oriented control), when we instruct the motor to reduce speed quickly (fast deceleration,) we notice that the DC bus ...
- 193
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1
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Rule of thumb for selecting Switching frequency of Brake/Regenerative switch
We are analyzing an old existing motor driver which controls a PMSM motor and looking to improve its performance.
The Mosfets used for the 3 phase H bridge operate at a switching frequency of 20 KHz.
...
- 193
2
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2
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313
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how do I add turn-off to a latching circuit?
so, I made this latch circuit : Falstad Simulator
simulate this circuit – Schematic created using CircuitLab
It turns on and stays on. How do I add turning off using single momentary switch?
I ...
- 23
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Problems with regenerative receiver circuit
Im trying to build a regenerative receiver, that is supposed to receive a ASK/OOK modulated signal. but there are a few problems. Keep in mind this circuit might be horrendous, but it's just a proof ...
- 69
2
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2
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468
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Shunt regulation - discrete or linear? [closed]
This is a spin-off of the question I've asked before. I've received many interesting answers and summarized them there. I also accepted most interesting suggestion. During this time we also bought and ...
- 13.7k
0
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1
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24 V Electric car kiddie regen brake issue [duplicate]
We manufacture small off road Land Rover Defenders for holiday parks and the likes. Up until recently these cars have run off 3x 8 V lead acid batteries with a potentiometer accelerator pedal ...
13
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10
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How can I handle regenerative braking when the lithium-ion battery is full?
Long version
We are using third party motor driver with regenerative braking and a lithium-ion battery. Apparently, this combination is well known in e-bike enthusiasts world as having a huge problem ...
- 13.7k