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| 摘要: |
| 介绍了大型抽水蓄能电站机组的静止变频器SFC(Static Frequency Converter)变频启动的基本原理。分析了SFC启动同步电机低转速运行(脉冲切换方式)和高转速运行(同步方式)的工作特点、频率限制。要保证同步电机由低转速运行平稳过渡到高转速运行，必须使脉冲方式下的频率上限与同步方式下的频率下限之间重叠部分有足够的裕度，即选择合适的切换频率。 |
| 关键词: 变频启动 频率限制 切换频率 静止变频器 |
| DOI： |
| 分类号:TV748 |
| 基金项目: |
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| Variable-frequency starting of SFC in pumped storage power plant |
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ZHOU Jun
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| Abstract: |
| The variable-frequency starting of SFC(Static Frequency Converter) for generators of large-sized pumped storage power plant is introduced. The working features and frequency restrictions of SFC starting under two operation modes are analyzed, which are pulse switching mode with low speed and synchronous mode with high speed. An appropriate switching frequency is essential to ensure the smooth transition of synchronous machine from low speed operation to high speed operation, which means that there should be an adequate frequency overlap between the upper limit of pulse mode and the lower limit of synchronous mode. |
| Key words: variable-frequency starting,frequency restriction,switching frequency,SFC, |
