Stability Research for Parallel Operation of Diesel Generator Sets

LI Donghui; ZHANG Jundong; JI Yulong

doi:10.3969/j.issn.0258-2724.2014.03.019

Volume 27 Issue 3

May 2014

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Journal of Southwest Jiaotong University > 2014 > 27(3): 494-498.

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LI Donghui, ZHANG Jundong, JI Yulong. Stability Research for Parallel Operation of Diesel Generator Sets[J]. Journal of Southwest Jiaotong University, 2014, 27(3): 494-498. doi: 10.3969/j.issn.0258-2724.2014.03.019

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Stability Research for Parallel Operation of Diesel Generator Sets

doi: 10.3969/j.issn.0258-2724.2014.03.019

Received Date: 13 Sep 2011
Publish Date: 25 Jun 2014

Abstract

Abstract

In order to analyze quantitatively the stability of parallel operation of diesel generator sets and monitor the state of generators being out of step during development of a simulator for the ship power system, calculation formulae for parameters of the swing angle were deduced. An on-line algorithm for calculating the parameters of swing curves of generators was presented, and the parametric exponents of the curve were calculated by solving high-order state differential equations. In addition, the stability degree of parallel operation (SDPO) was defined, and the Simulink tool box was used to set up a simulation system to verify the algorithm. The results of simulation examples show that the SDPO can indicate the stability allowance of parallel operation of diesel generator sets. The parameters obtained by the algorithm can reflect the stability of parallel operation in real time during the simulator training. The parameters of the swing curve can be determined by differentiation of the curve from the first to the forth order. When the exponents change with time or the data of the curve are discrete, the parametric exponent can be obtained by derivation using the five-point interpolation method.
- swing angle,
- diesel generator sets,
- stability degree,
- parallel operation,
- algorithm

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References(15)

References

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Stability Research for Parallel Operation of Diesel Generator Sets

doi: 10.3969/j.issn.0258-2724.2014.03.019