Digital generator solution

Single chip microcomputer STM32L151CCU6

Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ)

Overview:
As a mobile independent power source, small and medium-sized gasoline generators have unique advantages in situations where backup power and fluidity work are required. However, the output of the intermediate frequency generator is a three-phase alternating current with different frequency and voltage than the commercial power. The values ​​of voltage and frequency are relatively high, which does not meet the power requirements of most equipment. With the digitalization and intelligent development of inverter power supplies, inverter power supplies based on small and medium-sized gasoline generators are gradually becoming popular in the market. However, most of the current products only have a full-load working mode. Regardless of the size of the load or the load, the gasoline engine operates at full speed and the output loss is large. The main reason is that the working process of gasoline generators is complicated, and accurate mathematical models are difficult to obtain during operation. Based on the traditional PID algorithm, the design applies the fuzzy control algorithm to the control of the system. The throttle opening of the gasoline generator is controlled by a stepping motor. When the load is no-load, the generator operates at an idle state; during the load, the speed of the generator changes in real time as the load fluctuates. The whole system has taken effective measures for both hardware and software for the complex working environment of gasoline generator inverter power supply, which improves the control characteristics, reliability and anti-interference ability of the power supply, and ensures the stability and good performance of the system. Dynamic performance.
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