CAJ | 학술논문

为研究运行控制策略对地源热泵系统应用节能性的影响，以青岛地区某住宅地源热泵系统为研究对象，将负荷侧回水温度作为热泵机组群控策略的控制指标，对2008~2009年冬季(142天)运行状况进行了动态监测，分析了地源侧和负荷侧在控制策略下的温度响应，对比了典型工作日热泵机组运行台数、系统COP与热负荷的关系。实测结果表明，热泵系统能够根据控制策略的要求，实现热泵机组的自动启停，保证了负荷侧供水温度的稳定性，达到了预期的控制目标，系统的群控策略体现了较强的适应性。热泵系统负荷率在15?6％~32?2％的实际运行工况下，日运行COP值高于2?8，显示了较好的节能效果，为地源热泵系统运行控制策略的制定和机组群控的实现提供了重要的参考。
위연구운행공제책략대지원열빙계통응용절능성적영향，이청도지구모주택지원열빙계통위연구대상，장부하측회수온도작위열빙궤조군공책략적공제지표，대2008~2009년동계(142천)운행상황진행료동태감측，분석료지원측화부하측재공제책략하적온도향응，대비료전형공작일열빙궤조운행태수、계통COP여열부하적관계。실측결과표명，열빙계통능구근거공제책략적요구，실현열빙궤조적자동계정，보증료부하측공수온도적은정성，체도료예기적공제목표，계통적군공책략체현료교강적괄응성。열빙계통부하솔재15?6％~32?2％적실제운행공황하，일운행COP치고우2?8，현시료교호적절능효과，위지원열빙계통운행공제책략적제정화궤조군공적실현제공료중요적삼고。
In order to realize the energy-saving potential of GCHPs, an appropriate control strategy must be developed and adjusted for each unique installation. This paper presents a control strategy for heating operation of GCHPs for a residential building in Qingdao, in which load-side return water temperature is applied as parameter in controlling the numbers of operating heat pump units. The heating per-formance of GCHPs is investigated throughout the whole heating period in winter (142 days). The water temperature response in ground-source side and load-side under the control strategy is analyzed, and the relation between heating load and coefficient of performance ( COP) of GCHPs is compared when the number of operating heat pump units is different in typical day. The GCHPs performs space heat-ing with high energy efficiency (COP>2. 8) under lower building heating load rate range (15. 6% ~32. 2%), which proves the adapta-bility of the control strategy of GCHPs. The study conclusion provides the references for the design and application of control strategies in GCHPs.