The Design And Development Of AC Voltage Regulator Based On The Neuron PID Control

With the rapid development of the economy, science and technology of our country, all kinds of places have higher request of the stability and quality of electricity. On the contrary, if the power supply can not meet the requirements, the electrical equipment will be incapable to work normally. What’s more massive damage could happen. Therefore, the development of society and technology proposed new tasks for the regulated power supply research. Besides, whether the economy and energy of our country could maintain a sustainable development is decided by energy saving and emission reduction which is the only way we can take. This will make the brushless dc motor which is the first important member of electrical control system do a great contribution to the high efficiency low energy consumption motor control system under the low carbon industrial background.In order to realize the neuron PID control algorithm of brushless dc motor which is the core of the design and development of the ac regulated power supply. This paper gradually the target respectively on the hardware design and software design level. Core design train of thought is :The measurement of voltage acquisition module, will provide the single chip microcomputer and PC the actual value of output voltage in real time. Then through the algorithm to modifv the control volume and the diriction and speed of motor in real time. Finally under the condition of changging input voltage, maintain the output voltage around 220 V. The application of neuron PID algorithm makes the control precision and reflect speed obviously improved, the output is always table at 220 V. In addition, this paper also covers different relative function.First of all, this paper met the integrity need of precision voltage regulator system. Then throughout the voltage acquisition process, MCU calculating process and motor control process we can realize the closed loop control of the voltage regulator output voltage. About the control algorithm in MCU, we choose the classical PID algorithm. In addition, the neuron PID algorithm is not implemented in the program in STC micro-controller, but in the PC software. However,this goes to the functional requirement of serial communication. On the hardware, we choose the UART serial port communication tool, which can realize the data receiving and sending.This paper chooses the STC15 and C language to realize the classic PID control of the motor.What’s more we finished the drive programming of other module. For example the initialize the A\D sampling, sampling fixing method, drive programming of fan and relay, drive programming of LED screen, drive programming of serial communication.This paper chooses the Delphi program which is still very popular all over the world to set up the programming environment. We develop the neuron PID controller window by Delphi software. In the window, we can set the learning parameters, by which we can control the learning rate of the algorithm. Neuron PID control algorithm is also implemented in the PC software, and then through the serial port, the control result will be sent to the MCU. In the MCU program the received data will be translated to the duty ratio of PMW. By this process we can control the speed of motor.Finally, also by the Delphi software, data analysis and processing function is added in the PC program. The program makes comparison between the control results of classical PID controller and the neuron PID controller, then shows the comparison result in the graph in program window, by which it can more intuitively reflect the gap between these two. Through the experiment, this proves that the neuron PID control algorithm, indeed greatly improves the effect of the brushless dc motor control. Indeed it improves the reaction speed, reduces the overshoot, increases the robustness.