The invention provides a testing
system of a power
assembly, and belongs to the technical field of testing of power systems. The testing
system at least comprises a power testing
machine, a first control module, an upper
computer module and an extension control protocol developing module, wherein the first control module is used for correspondingly controlling the power testing
machine, the upper
computer module is configured to define different working conditions according to a state
machine architecture so as to continuously switch between different working conditions, and perform communication with a power
assembly controller in any state according to a ASAM-MCD (association for
standardization of
automation and measuring systems - measurement, calibration and diagnosis) communication protocol, the extension control protocol developing module is used for developing an extension control protocol between the upper
computer module and the first control module, and the
remote communication is performed between the first control module and a second control module which is integrated into the upper computer module according to the extension control protocol, so as to control the power testing machine on the basis of the second control module. The testing
system has the advantages that the compatibility and the extendibility are good, the continuous switching between different working conditions is easy, the cost is low, and the testing period is short.