The combination of the engine and the generator affects the transfer power, allowable speed, and transfer efficiency. The distance between the generator and the engine also affects the ambient temperature, the operable current density of the generator and even the reliability of the generator. In this article, the belt drive mode is selected, which is far away from the high temperature environment of the engine, which increases the service life and reliability of the generator, and compares the difference between open-loop control and closed-loop control. Finally, a one-hour stable load test and a one-hour variable load test on the generator were performed and the relevant parameters were recorded for subsequent reference.