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随着能源危机的增大,小水电的开发及利用已经受到了更多人的关注。作为分布式能源的小水电系统的开发利用对环节能源问题的是有重要意义的。由于小水电大多是分布在山区,这样在输送电的过程中,由于距离远和导线截面小等原因,造成小水电系统出现电压无功问题,致使系统电压的合格率和无功率不合理,影响电网多运行的经济性。本文主要论述了小水电系统电压问题,并提出了具体的控制方案。
With the increase of energy crisis, the development and utilization of small hydropower have received more attention. The development and utilization of small hydropower system as distributed energy is of great significance to the issue of energy link. As small hydropower plants are mostly located in mountainous areas, voltage and reactive power problems occur in SHP systems due to the long distance and small cross-section of conductors during power transmission. As a result, the passing rate and non-power of system voltages are unreasonable and affect The economy of grid operation. This paper mainly discusses the voltage problem of small hydropower system and puts forward a specific control scheme.