全液压调速系统的油压容易产生脉动，如果油压脉动的频率与电力系统固有频率接近时也可能引发电力系统共振机理的低频振荡。
If the frequency of oil-pressure pulsation is near to power system natural oscillations frequency, power system low frequency oscillations of resonance mechanism can be induced.
广东罗定电厂1号机组DEH调速系统EH油压在一次冲转过程中，多次出现因为油压低，导致汽轮机跳闸。
The turbine was in trip in No. 1 power unit, Luoding power Plant, Guangdong because of low oil pressure in several times in the process of one stroke of EH oil pressure in DEH speed adjusting system.
阐述了一种新型多功能交流变频调速控制系统，用于保持油田输油管主干线油压恒定。
A novel AC variable frequency converting control system with multiple functions is introduced. The system is suitable for maintaining constant oil pressure in main line of oil pipelines.
阐述了一种新型多功能交流变频调速控制系统，用于保持油田输油管主干线油压恒定。
A novel AC variable frequency converting control system with multiple functions is introduced. The system is suitable for maintaining constant oil pressure in main line of oil pipelines.
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