Control method of starter load control system based on electric dynamometer

Abstract

The invention discloses a control method of a starter load control system based on an electric dynamometer. The system comprises a tested starter, an electric dynamometer host, a rotating speed encoder, a torque flange, an adaptive coupling, an upper computer, a closed-loop control lower computer and a four-quadrant operation frequency converter. A tested starter shafting is connected with one endof the adaptive coupling, the other end of the adaptive coupling is horizontally connected with the torque flange, the torque flange is horizontally connected with the electric dynamometer host, andthe electric dynamometer host is connected with the rotating speed encoder. The torque flange is connected with the upper computer, the electric dynamometer host is connected with the closed-loop control lower computer and the four-quadrant operation frequency converter, the closed-loop control lower computer is electrically connected with the rotating speed encoder and the four-quadrant operationfrequency converter, and the upper computer is electrically connected with the closed-loop control lower computer. A resistance of a main engine to the starter is simulated, a rotating speed is accurately controlled in a starting process, parameters such as a torque, the rotating speed and the like are measured and recorded, starter performance is tested, and a control defect and an environmentalprotection defect are overcome.

Description

technical field [0001] The invention belongs to the technical field of testing, relates to various internal combustion engines, aeroengines, starters and other technologies, in particular to a control method for a starter load control system based on an electric dynamometer. Background technique [0002] In the starting process of various internal combustion engines and aero-engines, at first start the matching starter, the engine is equivalent to the load of the starter, and the starter outputs a rotating speed to drive the engine to start. After the engine starts, the starter stops working. [0003] At present, eddy current dynamometers are generally used in test systems widely used for starter loads. Eddy current dynamometers cannot be actively driven, and intervention cannot be taken when the actual speed is lower than the target speed. Some of them use the bench of the electric dynamometer. When processing the energy generated by the brake, the brake chopper is used to...

AI Technical Summary

Problems solved by technology

[0003] At present, eddy current dynamometers are generally used in test systems widely used for starter loads. Eddy current dynamometers cannot be actively driven, and intervention cannot be taken when the actual speed is lower than the target speed

Some of them use the bench of electric dynamometer. When processing the energy generated by loading brakes, the brake chopper is used to convert the energy into DC current, and the resistance box is used to generate heat for consumption, resulting in waste of energy and aggravating the greenhouse effect.

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