基于励磁电流前馈调节的航空直流发电系统建模分析

doi:10.7527/S1000-6893.2014.0287

Abstract

Abstract:

High-voltage direct-current (HVDC) power system has been the preferred aviation power supply because of its high efficiency, light weight and high reliability. The large capacitor in the system leads to the fact that the traditional regulating plan using PI cannot meet the requirements of the dynamic performance. For this, the excitation current feedforward (ECF) technology has been proposed in the regulators in the aircraft generation system. The mathematical model of the generation system with and without the ECF is built respectively to compare the dynamic characteristics of the system. Experimental results show that with ECF the system can respond quickly and remain stable, and the dynamic performance improves significantly in sudden change of the load in the system. This technology could be applied to other voltage regulators in the aircraft generation system.

Key words: doubly salient electromagnetic generator system, voltage regulating system, excitation current feedforward, modeling and analysis, dynamic characteristic

CLC Number:

ZHAO Yao, WANG Huizhen, ZHANG Haibo, CHEN Chen, XIAO Lan. Modeling and analysis of aero DC generation system based on excitation current feedforward regulation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(4): 1230-1239.

References

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Modeling and analysis of aero DC generation system based on excitation current feedforward regulation

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