Motors play an important part in lifting and running a device. They are limited to weight but high efficiency and power capacity motors can easily cover heavy weight situations. Brushless Motors are best used for quadcopters, multicopters and drones.
Choosing motors for copter projects is not an easy task, so for every selection technical specifications such as thrust, power and RPM is to be checked.
Generally, planning to prepare your own project for the first time, weight is to be considered then the thrust to lift the quadcopter. The thrust should be kept higher for proper lifting, flying and landing. According to general statistics, thrust should be kept twice the weight of the quadcopter.
Trust is kept perfect, too low might create difficulties to take off and too high become hard to control.
A light weight copter is more efficient and durable.
Additionally, the battery is also considered an important element for long life of quadcopter. Lithium polymer batteries are best suited for long run as they do not swell nor they heat up faster. Batteries should be charged when it reaches a minimum of 20 percent. Zero percent might lower the durability of the battery. Brushless DC motors accomplished high speed of 10000 RPM or above.
Brushless DC motor architecture sounds very simple and compact. A fixed armature is present in the brushless motor around which permanent magnets rotate. Brushless DC motors are best suited as they produce high torque to weight ratio, increased reliability, more torque per watt, reduced noise, no brush required, as long life, totally eliminates ionizing sparks from the commutator plus reduce electromagnetic interference. Brushless motor commutation is easily implemented using a microcontroller, analogue hardware or digital firmware by using an FPGA. Brushless commutation has greater flexibility, speed limiting, holding torque when stationary, micro stepped operation for slow or fine motion control.
Brushless motors cover a wide range of applications in the field of electronic devices which comprise of computer hard drives, DVD/CD players, refrigeration. They are also favorable to electric vehicles such as bicycle and hybrid vehicles. Users or learners can use brushless DC motor in various quadcopter, multicopter or drones adding additional accessories for a specific function. Copters help in remodeling, transferring load, surveillance, Videography and many more.
After improving its performance, again, both the coils are energized and further improved in a manner such that it pushes the rotor and energize the coils. Therefore, it results in increasing torque and power from the motor. This great achievement is seen in this motor and takes time for other type of motors to grab.
Electric motors are known as a viable alternative to the combustion engines because of their multiple advantages. The majority of brands have made the impossible to work with electric motors and improve them according to the contemporary requirements.
Many people don’t believe in the compatibility between an electric motor and a combustion engine. Especially if this is related to the rapid increase in terms of oil pricing. Thus it is always a good idea to know the benefits of running an electric motor as opposed to the combustion engines available nowadays.
Design and performance
The electric motors have a more interesting design, being compact and fitting everywhere in the car. When it comes to performance, they are better than the gasoline or diesel models. Why? Because they have a power source (usually batteries) that is connected to the electric motor with the help of a convertor and a controller. This is utilized in order to enable the use of AC to the motor. This means that an electric motor requires a smaller number of mechanical items and causes less tear to the components that are already doing their job. batteries that best in class for the trolling motor
Friction and maintenance
Another great advantage of the electric motor is the fact that it doesn’t have a great friction loss as opposed to the combustion engines. In this case, the energy is transformed into motion while running, making the acceleration constant and immediate.
Moreover, these motors don’t need to be maintained that often and don’t require engine oil or coolants. They are very silent and the heat liberated is not as intense as in other cases. The vibrations can hardly be perceived, if the engine is not modified in any way.
No gears or tank
Electric motors do not have gear but a mechanism to differentiate the back and forth movement. For some, this represents an opposite of the motor itself. Furthermore, by not having a tank with oil like in any other situation, this motor has the possibility to decentralize the movement generation. This means that more motors are used as opposed to one single motor that is hooked to a transmission. All you need is software to help the motors work together.
An electric motor does not need a clutch to exert torque and it can economize braking energy in order to recharge the batteries. In terms of fuel consumption, it has an efficiency of almost 90 percent. This means that this energy is consumed while driving using the battery to its full potential. On the other hand, the diesel engine has an efficiency of only 40 percent. Not to mention that this technology is eco-friendly and costs less than the existing alternatives.
This is the main weak point of the entire system. But this is not a terrible thing, since batteries are constantly being improved and made easier to charge. Taking into account that more people realize that the Earth should be preserved properly, the ecological responsibility grows too. Giving up on a few commodities is not a big price to pay for a clean and healthy planet.