DC parallel control method for driving power generation system

Abstract

The invention discloses a DC parallel control method for a driving power generation system. The driving power generation system comprises an engine, an AC generator, a DC generator, a power generationcontroller and a power increasing module. The power generation controller comprises a generator control module and an inverter module. The method comprises the following steps: obtaining the currentrunning speed of the AC generator; comparing the current running speed of the AC generator with a set reference speed; and when the current running speed of the AC generator is greater than the reference speed, independently supporting an AC load operation by the voltage output by the power generation controller; and when the current running speed of the AC generator is less than or equal to the reference speed, supporting the AC load operation by the power increasing module and the power generation controller. The output voltage of the generator is controlled smoothly, so that the power output from a common bus is reasonably distributed, thereby avoiding an overload condition on the generator side and reducing the fluctuation of the output power of the generator.

Description

technical field [0001] The invention relates to the field of power generation technology, in particular to a DC parallel control method for a driving power generation system. Background technique [0002] The vehicle-mounted alternator power generation system takes the vehicle engine as the power source, adds a generator power-take-off window, and cooperates with a suitable generator to form an independent AC power system. The advantages of volume and weight are mostly used in military combat vehicles to provide sufficient power for radar, computer and communication equipment. [0003] In the power generation system, when the vehicle is running, the engine drives the generator through the belt or shaft, and the generator controller controls the generator to output DC or AC power. In most cases, it outputs 220V / 50Hz AC power to provide stable and reliable power for electrical equipment. electrical energy. However, as the road conditions of the battlefield change at any time...

AI Technical Summary

Problems solved by technology

[0004] At present, although relevant technical personnel have connected the power booster module in parallel to the busbar of the power generation output to solve the problem of insufficient output power at low engine speeds; The speed detection of the vehicle-mounted power generation system changes greatly, resulting in large fluctuations in the busbar, which has a greater impact on the voltage detection of the busbar, making the output power distribution of the busbar unreasonable; the motor side will be in overload due to unreasonable power distribution, causing The motor heats up quickly, triggering the motor over-temperature protection, causing the system to power off

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