The working principles of the modulator
We know that the speed expression of the communication motor is:
N=60f(1-s)/p
N-discretion speed; f-discretion frequency; s-motion deviation rate; p-moment polar logarithm。
By format, the rate n is proportional to the frequency f, which can change the rate of the motor when the frequency f is in the range of 0 to 50 hz. The speed adjustment is achieved by changing the frequency of the power source of the motor, and is an ideal efficient, high-performance speed-reducing tool。
The principles of the mutilator
Intersectional frequency means a modulator without an intermediate direct flow chain, which is based on the direct conversion of current frequencies in circuits into controlled frequency currents and voltages, and is also called a direct variant. It consists of both positive and negative integrators, and the control system is adjusted according to the polarity of the load current, thus providing interchangeal control, which rotates the system to the current and the reverse state, thus achieving a variable frequency-to-flow voltage, thus acting as a modulation. Such transformers are typically used for high-capacity, low-rotation, high-performance synchronized motors。
It's the principle of turning in the frequency trigger
The principle of a converse frequency-modulator is first to transform the communication power in the circuit through the system's own integrator into a stable direct current, then to convert the current power into a controlled frequency and voltage, so it is called an indirect variant. Its main components are six semiconductor main switches, consisting of three-bridge reverse circuits. Routine control of circuits can be done to control the circuits ' current frequencies and voltages, thus achieving the goal of frequency-modulation。
The modulator, which has a wide range of applications in the field of modern electronic machinery, has the effect not only of significantly increasing the efficiency of the machinery but also of reducing emissions from energy efficiency, which can be described as two arrows. And the intelligent variable-frequency technology, which makes it more human, allows it to regulate itself and to optimize the work of machines, is much more accurate than humans. I'm here about the principles of the modulator. I hope it helps you。
