CAJ | 학술논문

为了保证电力系统的稳定运行和能源的合理利用，在综合利用的多能源小电力系统中，一般通过低水头抽水蓄能电站水泵水轮机进行调节。低水头水泵水轮机过流特性直接影响其性能和效率，而自身流道参数是影响水泵水轮机过流能力的主要因素。从低水头抽水蓄能电站水泵水轮机的工作特点出发，根据水泵水轮机工作原理推导出过流能力近似计算公式。通过数值模拟方法计算了不同水头工况的流量，并与近似计算公式结果进行了对比分析。结果表明两者基本一致，且相对误差较小，在5%左右。
위료보증전력계통적은정운행화능원적합리이용，재종합이용적다능원소전력계통중，일반통과저수두추수축능전참수빙수륜궤진행조절。저수두수빙수륜궤과류특성직접영향기성능화효솔，이자신류도삼수시영향수빙수륜궤과류능력적주요인소。종저수두추수축능전참수빙수륜궤적공작특점출발，근거수빙수륜궤공작원리추도출과류능력근사계산공식。통과수치모의방법계산료불동수두공황적류량，병여근사계산공식결과진행료대비분석。결과표명량자기본일치，차상대오차교소，재5%좌우。
In order to ensure the stability of power system and the rational use of energy,low-head pumped storage power stations are usually used to adj ust electricity in the multi-energy small power systems.The performance and efficiency of the unit are directly influenced by the pump-turbine flow capacity which is mainly decided by the channel parameters.Based on the characteristics and principles of pump-turbine in the low-head pumped storage power station,the approximate calculation formula is obtained,and the flows under different water heads are calculated by numerical simulation.The results of the formula and numerical simulation are compared,a good agreement is obtained and the relative errors are around 5%.