Controlling method of energy feedback type diesel engine testing device

Abstract

The invention discloses a controlling method of an energy feedback type diesel engine testing device. A diesel engine drives a synchronous generator to generate alternating current with variable frequency and amplitude and outputs the alternating current to a rectifier; the rectifier converts the alternating current with the variable size and frequency into direct current, and outputs the direct current to a direct current boost converter, and meanwhile, the rectifier transmits the energy output by the diesel engine to a direct current boost converter; the direct current boost converter converts the direct current voltage with variable amplitude output by the rectifier into stable direct current voltage to be used for a grid-connected inverter; the grid-connected inverter inverts the direct current output by the direct current boost converter into alternating current which is fed back to the grid through a grid-connected transformer and a switch cabinet, and the power output by the diesel engine is transmitted to the grid. Through applying the method, the testing device has the advantages of small land occupation, high electricity energy quality and low maintenance cost, so that the problems of environment control and the like caused by the waste of the energy source and the rise of the environment temperature in testing places can be avoided.

Description

technical field [0001] The invention relates to a control method of a test device used for a diesel engine bench loading test, in particular to a widely used power supply system of a ship, a power supply system of a diesel locomotive, a backup power supply of a power plant, a family car, and a mine vehicle drive The control method of the device that feeds energy back to the power grid when the diesel engine in the medium place is subjected to a loading test. Background technique [0002] Diesel units are widely used in various industries. They can be used as power equipment and generators in conjunction with marine power systems, diesel locomotive power systems, power plant backup power, etc., and can also be used as power equipment in conjunction with direct gearboxes in household vehicles. And mine vehicle driving. However, for diesel gensets, it needs to pass various tests before it can be applied to the above-mentioned specific occasions. Taking marine propulsion diese...

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Problems solved by technology

[0011] The object of the present invention is to provide a control method for an energy feedback type diesel engine test device, which solves the problems of energy consumption, large floor space, low reliability and difficult maintenance of the diesel unit test device used in the control method of the prior art, and at the same time Technical problems that seriously pollute the power grid

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