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| 摘要: |
| 分析了交流输电和同步电网中的缺陷,指出交直流特高压混合同步大电网存在系统瓦解的隐患。建议受电负荷中心必须有坚强的支撑电源;电网结构必须遵循电力系统安全稳定导则,缩小同步电网区,区间以直流异步互联,区内采取三道防线,确保各区安全,事故互不影响;远距离必须采用纯直流输电。这3个必须的紧密结合是保证全国电力系统安全可靠运行的基础。 |
| 关键词: 交流特高压同步电网,直流异步互联电网,电力系统安全稳定导则 |
| DOI： |
| 分类号:TM723 |
| 基金项目: |
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| On foundation of safe and reliable operation of national power system |
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ZHANG Yu-ying
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| Abstract: |
| The defects of AC transmission and synchronized power grid are analyzed,and the hidden danger of large UHV AC-DC synchronized power grid collapse is pointed out.Suggestions are given: the load center must have strong power sources;the grid configuration must observe the guiding rules for power system safety and stability-reduce the size of synchronized power areas,apply DC asynchronous interconnection between areas,three defense lines are set to separate faults and ensure area safety;HVDC or UHVDC transmissions should be taken for long distances.The close combination of these suggestions is the foundation of safe and reliable operation of national power system. |
| Key words: UHVAC synchronized power grid,HVDC asynchronous interconnection power grids,guiding rules of power system safety and stability, |
