基于轴电压的隐极同步发电机转子典型故障诊断

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Abstract Aiming at non-salient pole synchronous generator’s rotor eccentricity and winding inter-turn short circuit, air-gap conductance method is adopted to analyze the generator’s air-gap magnetic field, and the distorted magnetic field characteristic components corresponding to rotor fault are obtained by calculation. Relevant literature data and shaft voltage experiments on fault simulation unit verify that shaft voltage signals are induced by the distorted magnetic flux. Shaft voltage signals can be used to detect rotor’s typical faults, which brings out a new approach to diagnose concealed-pole synchronous generator’s rotor faults.

Key words： Shaft voltage eccentricity inter-turn short circuit monitoring

Received: 05 May 2009 Published: 04 March 2014

PACS:

TM311

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	Wu Yucai
	Li Yonggang
	Li Heming

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Wu Yucai,Li Yonggang,Li Heming. Diagnosis of Non-Salient Pole Synchronous Generator Rotor’s Typical Faults Based on Shaft Voltage[J]. Transactions of China Electrotechnical Society, 2010, 25(6): 178-184.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I6/178

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