High-temperature high-speed starter generator system test system and test method thereof

Abstract

The invention discloses a high-temperature high-speed starter generator system test system and a test method thereof. A tested starter generator is placed in a high-temperature environment box; duringpower generation testing, an input rotating speed of the tested starter generator is controlled through a four-quadrant frequency converter, dynamic rapid loading and unloading are carried out through a program control load box to realize dynamic performance testing, and steady-state and service life testing is carried out by making a bidirectional direct-current power supply feed back power gridenergy to simulate a steady-state load.

Description

technical field [0001] The invention relates to a high-temperature high-speed starter generator system test system and a test method thereof. Background technique [0002] The tested starter-generator system includes the tested starter-generator and the tested starter-generator controller. During the starting test, the test system supplies power to the tested starter-generator controller, the tested starter-generator controller drives the tested starter-generator to work, the tested starter-generator is used as a motor, and the energy is controlled by the tested starter-generator The test system needs to simulate the relationship between the moment of inertia, resistance torque and speed of the engine. During the power generation test, the test system needs to simulate the engine to provide speed input for the tested starter generator. The tested starter generator is used as a generator. The tested generator converts mechanical energy into variable voltage AC power. The tes...

AI Technical Summary

Problems solved by technology

For the three technical solutions, it is more difficult to achieve high speed

The common technical shortcomings of the three technical solutions are that on the one hand, they do not consider the compatibility with the high temperature test environment, and on the other hand, the main consideration is the situation of energy output from the dynamometer. few

However, in the power generation state, the loading and unloading time of the scheme through the bidirectional DC power supply is on the order of 10ms, and the speed is too slow to meet the fast dynamic characteristic test requirements of the starter generator system.

Option 3) can overcome the shortcomings of the AC bus feedback scheme for fast power generation and slow loading response. The loading speed can reach the order of 10μs, but there is no energy feedback function, and the loss is high. It is not suitable for application conditions that require long-term work such as life testing.

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