Analysis of Manual Synchronization Surge Current of Emergence Diesel Generator in Qinshan Nuclear Power Plant
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摘要: 发电机进行准同期操作时,为了降低冲击电流,同期电压的压差、频差、相位差须满足要求。本文通过应急柴油发电机(EDG)手动准同期并网实例,逐一分析了压差、频差、相位差对并网瞬间冲击电流的影响,论证了合闸相位差是影响并网冲击电流的关键因素,就此作出评价并提出了相关改进建议。Abstract: In order to decrease the surge current of the generator when synchronized, the voltage frequency and phase position difference of the generator should satisfy the standard. Based on the manual synchronization of the emergence diesel generator, the influence of voltage frequency and phase position difference are analyzed briefly. The result shows that the phase position difference is key factor. The paper provides the assessment and improvement advice.
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Key words:
- EDG /
- Manual synchronization /
- Phase position difference /
- Surge current /
- Assessment /
- Improvement advice
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