暖通空调
暖通空調
난통공조
HEATING,VENTILATING & AIR CONDITIONING
2015年
6期
82-86
,共5页
分布式变频泵系统%敏感度%零压差点%稳定性%水系统
分佈式變頻泵繫統%敏感度%零壓差點%穩定性%水繫統
분포식변빈빙계통%민감도%령압차점%은정성%수계통
distributed variable-frequency pump system%sensitivity%zero-pressure-difference point%stability%water system
通过计算各支路流量相对于各支路水泵转速变化的敏感度，进而计算各支路的稳定性指标 K s。比较了变零压差点运行与定零压差点运行的稳定性，分析了定零压差点运行时零压差点位置对稳定性的影响。结果表明，定零压差点运行的稳定性优于变零压差点运行，零压差点控制位置选在网路的中部对提高系统整体的稳定性最有利。
通過計算各支路流量相對于各支路水泵轉速變化的敏感度，進而計算各支路的穩定性指標 K s。比較瞭變零壓差點運行與定零壓差點運行的穩定性，分析瞭定零壓差點運行時零壓差點位置對穩定性的影響。結果錶明，定零壓差點運行的穩定性優于變零壓差點運行，零壓差點控製位置選在網路的中部對提高繫統整體的穩定性最有利。
통과계산각지로류량상대우각지로수빙전속변화적민감도，진이계산각지로적은정성지표 K s。비교료변령압차점운행여정령압차점운행적은정성，분석료정령압차점운행시령압차점위치대은정성적영향。결과표명，정령압차점운행적은정성우우변령압차점운행，령압차점공제위치선재망로적중부대제고계통정체적은정성최유리。
Ks can be used to reflect the stability of each branch.It can be determined by calculating the sensitivity of branch flow rate to the speed of branch pump.Compares the stability of the regulation mode with fixed zero-pressure-difference point and that with variable zero-pressure-difference point. Analyses the influence of the position of the zero-pressure-difference point on the stability in the regulation mode with fixed zero-pressure-difference point.The results show that the stability of the regulation mode with fixed zero-pressure-difference point is better than that with variable zero-pressure-difference point, and it is the most advantageous for the whole stability of system to have the zero-pressure-difference point stay in the middle of network.
