Control Strategy of Parallel Systems with Efficiency Optimisation in Switched Reluctance Generators

• Autorzy: Zan Xiaoshu , Lin Hang , Xu Guanqun , Zhao Tiejun , Gong Yi

Identyfikatory

DOI

10.2478/pead-2021-0003

• Języki publikacji: EN

Abstrakty

EN

To solve motor heating and life shortening of parallel switched reluctance generator (SRG) induced by uneven output currents due to different external characteristics, we generally adopt current sharing control (CSC) to make each parallel generator undertake large load currents on average to improve the reliability of parallel power generation system. However, the method usually causes additional loss of power because it does not consider the efficiency characteristics of each parallel generator. Therefore, with the efficiency expression for the parallel system of SRG established and analysed, the control strategy based on differential evolution (DE) algorithm is proposed as a mechanism by which to enhance generating capacity and reliability of multi-machine power generation from the perspective of efficiency optimisation. We re-adjust the reference current of each parallel generator to transform the working point of each generator and implement the efficiency optimisation of parallel system. The performance of the proposed control method is evaluated in detail by the simulation and experiment, and comparison with traditional CSC is carried out as well.

Słowa kluczowe

EN

switched reluctance generator; parallel system; efficiency optimization; differential evolution algorithm

• Wydawca: De Gruyter
• Czasopismo: Power Electronics and Drives
• Rocznik: 2021
• Tom: Vol. 6 (41)
• Strony: 61--74
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Zan Xiaoshu

• State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems (China Electric Power Research Institute), Beijing, China
• School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China

autor

Lin Hang

• School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China

autor

Xu Guanqun

• School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China

autor

Zhao Tiejun

• School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China

autor

Gong Yi

• School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China

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