Motor composite testing system

The invention relates to a motor composite testing system. The motor composite testing system comprises a frequency converter and a variable frequency motor, wherein the frequency converter is connected with the variable frequency motor and is fixedly connected with an adjustable bracket, a rotating shaft of the variable frequency motor is provided with a belt wheel, and the belt wheel is connected with a rotating shaft of a tested motor; an electronic load meter is connected with the tested motor; a storage battery is connected with the tested motor; one end of a LIN bus adapter is connectedwith the tested motor, and the other end is connected with an upper computer; a vibration test fixture of a vibration table fixes the tested motor, the upper computer is connected with a control instrument, and the control instrument is installed on the vibration test fixture; and a test box body is in fit sealed connection with the vibration test fixture by means of an expansion platform. The motor composite testing syst