model Controller "Validation model for the minimum flow bypass valve controller" Buildings.Templates.Plants.Controls.MinimumFlow.Controller ctlFloMinPum( use_val=false, use_pumPriDed=true, use_pumPriDedEqu=fill(true, 2), V_flow_nominal={0.02,0.05}, V_flow_min={0.01,0.03}, nEqu=2) "Valve controller enabled by primary pump status"; Buildings.Templates.Plants.Controls.MinimumFlow.Controller ctlFloMinVal( use_val=true, use_valEqu=fill(true, 2), use_pumPriDed=false, V_flow_nominal={0.02,0.05}, V_flow_min={0.01,0.03}, nEqu=2) "Valve controller enabled by isolation valve command"; Buildings.Controls.OBC.CDL.Logical.Sources.TimeTable u1EquValPum( table=[ 0, 0, 0; 1, 1, 0; 2, 1, 1; 3, 0, 1; 4, 0, 0], timeScale=200, period=900) "Source signal for equipment or valve command or pump status"; Buildings.Controls.OBC.CDL.Reals.Sources.Sin dVPri_flow( amplitude=sum(ctlFloMinVal.V_flow_min) / 2, freqHz=3 / 1000) "Source signal for primary flow rate variation around setpoint"; Buildings.Controls.OBC.CDL.Reals.Add VPri_flow1 "Primary flow rate"; Buildings.Controls.OBC.CDL.Reals.Add VPri_flow "Primary flow rate"; equation connect(u1EquValPum.y[1:2], ctlFloMinVal.u1ValIso[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPum.u1PumPri_actual[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinVal.u1Equ[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPum.u1Equ[1:2]); connect(dVPri_flow.y, VPri_flow1.u2); connect(VPri_flow1.y, ctlFloMinPum.VPri_flow); connect(ctlFloMinPum.VPriSet_flow, VPri_flow1.u1); connect(ctlFloMinVal.VPriSet_flow, VPri_flow.u1); connect(dVPri_flow.y, VPri_flow.u2); connect(VPri_flow.y, ctlFloMinVal.VPri_flow); end Controller;

model ControllerHeatPumps "Validation model for the HP plant minimum flow bypass valve controller" Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinPumCoo( have_heaWat=false, have_chiWat=true, have_pumPriHdr=false, have_pumChiWatPriDedHp=true, nHp=2, nPhp=0, have_valInlIso=false, have_valOutIso=false, VChiWat_flow_nominal={0.02, 0.05}, VChiWat_flow_min={0.01, 0.03}) "Valve controller enabled by primary pump status – Cooling-only application"; Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinValCoo( have_heaWat=false, have_chiWat=true, have_pumPriHdr=true, nHp=2, nPhp=0, have_valInlIso=true, have_valOutIso=false, VChiWat_flow_nominal={0.02, 0.05}, VChiWat_flow_min={0.01, 0.03}) "Valve controller enabled by isolation valve command – Cooling-only application"; Buildings.Controls.OBC.CDL.Logical.Sources.TimeTable u1EquValPum( table=[0, 0, 0; 1, 1, 0; 2, 1, 1; 3, 0, 1; 4, 0, 0], timeScale=200, period=900) "Source signal for equipment or valve command or pump status"; Buildings.Controls.OBC.CDL.Reals.Sources.Sin dVPri_flow( amplitude=sum(ctlFloMinValCoo.VChiWat_flow_min) / 2, freqHz=3 / 1000) "Source signal for primary flow rate variation around setpoint"; Buildings.Controls.OBC.CDL.Reals.Add VPriCoo_flow1 "Primary flow rate"; Buildings.Controls.OBC.CDL.Reals.Add VPriCoo_flow "Primary flow rate"; Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinPumHea( have_heaWat=true, have_chiWat=false, have_pumPriHdr=false, have_pumChiWatPriDedHp=false, nHp=2, nPhp=0, have_valInlIso=false, have_valOutIso=false, VHeaWat_flow_nominal={0.02, 0.05}, VHeaWat_flow_min={0.01, 0.03}) "Valve controller enabled by primary pump status – Heating-only application"; Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinValHea( have_heaWat=true, have_chiWat=false, have_pumPriHdr=true, nHp=2, nPhp=0, have_valInlIso=true, have_valOutIso=false, VHeaWat_flow_nominal={0.02, 0.05}, VHeaWat_flow_min={0.01, 0.03}) "Valve controller enabled by isolation valve command – Heating-only application"; Buildings.Controls.OBC.CDL.Reals.Add VPriHea_flow1 "Primary flow rate"; Buildings.Controls.OBC.CDL.Reals.Add VPriHea_flow "Primary flow rate"; Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinPumHeaCoo( have_heaWat=true, have_chiWat=true, have_pumPriHdr=false, have_pumChiWatPriDedHp=false, nHp=2, nPhp=0, have_valInlIso=false, have_valOutIso=false, VHeaWat_flow_nominal={0.02, 0.05}, VHeaWat_flow_min={0.01, 0.03}, VChiWat_flow_nominal={0.02, 0.05}, VChiWat_flow_min={0.01, 0.03}) "Valve controller enabled by primary pump status – Heating and cooling application"; Buildings.Templates.Plants.Controls.MinimumFlow.ControllerHeatPumps ctlFloMinValHeaCoo( have_heaWat=true, have_chiWat=true, have_pumPriHdr=true, nHp=2, nPhp=0, have_valInlIso=true, have_valOutIso=false, VHeaWat_flow_nominal={0.02, 0.05}, VHeaWat_flow_min={0.01, 0.03}, VChiWat_flow_nominal={0.02, 0.05}, VChiWat_flow_min={0.01, 0.03}) "Valve controller enabled by isolation valve command – Heating and cooling application"; Buildings.Controls.OBC.CDL.Reals.Add VPriHeaCoo_flow1 "Primary flow rate"; Buildings.Controls.OBC.CDL.Reals.Add VPriHeaCoo_flow "Primary flow rate"; Buildings.Controls.OBC.CDL.Logical.Sources.TimeTable u1HeaEqu( table=[0, 0, 0; 1.5, 1, 0; 2.5, 0, 1], timeScale=200, period=900) "Source signal for equipment heating/cooling mode command or pump status"; Buildings.Controls.OBC.CDL.Logical.And u1ValChiWat[2] "Source signal for CHW isolation valves"; Buildings.Controls.OBC.CDL.Logical.And u1ValHeaWat[2] "Source signal for HW isolation valves"; Buildings.Controls.OBC.CDL.Logical.Not u1CooEqu[2] "True if equipment is commanded in cooling mode"; equation connect(u1EquValPum.y[1:2], ctlFloMinValCoo.u1Hp[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPumCoo.u1Hp[1:2]); connect(dVPri_flow.y, VPriCoo_flow1.u2); connect(dVPri_flow.y, VPriCoo_flow.u2); connect(ctlFloMinPumCoo.VChiWatPriSet_flow, VPriCoo_flow1.u1); connect(ctlFloMinValCoo.VChiWatPriSet_flow, VPriCoo_flow.u1); connect(VPriCoo_flow.y, ctlFloMinValCoo.VChiWatPri_flow); connect(VPriCoo_flow1.y, ctlFloMinPumCoo.VChiWatPri_flow); connect(u1EquValPum.y[1:2], ctlFloMinValCoo.u1ValChiWatInlIso[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPumCoo.u1PumChiWatPriDedHp_actual[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinValHea.u1Hp[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPumHea.u1Hp[1:2]); connect(dVPri_flow.y, VPriHea_flow.u2); connect(dVPri_flow.y, VPriHea_flow1.u2); connect(ctlFloMinPumHea.VHeaWatPriSet_flow, VPriHea_flow1.u1); connect(ctlFloMinValHea.VHeaWatPriSet_flow, VPriHea_flow.u1); connect(VPriHea_flow1.y, ctlFloMinPumHea.VHeaWatPri_flow); connect(VPriHea_flow.y, ctlFloMinValHea.VHeaWatPri_flow); connect(u1EquValPum.y[1:2], ctlFloMinValHea.u1ValHeaWatInlIso[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPumHea.u1PumHeaWatPriDedHp_actual[1:2]); connect(u1EquValPum.y[1:2], ctlFloMinPumHeaCoo.u1Hp[1:2]); connect(ctlFloMinPumHeaCoo.VHeaWatPriSet_flow, VPriHeaCoo_flow1.u1); connect(ctlFloMinValHeaCoo.VHeaWatPriSet_flow, VPriHeaCoo_flow.u1); connect(VPriHeaCoo_flow1.y, ctlFloMinPumHeaCoo.VHeaWatPri_flow); connect(VPriHeaCoo_flow.y, ctlFloMinValHeaCoo.VHeaWatPri_flow); connect(u1EquValPum.y[1:2], ctlFloMinValHeaCoo.u1Hp); connect(u1EquValPum.y[1:2], ctlFloMinPumHeaCoo.u1PumHeaWatPriDedHp_actual[1:2]); connect(dVPri_flow.y, VPriHeaCoo_flow.u2); connect(dVPri_flow.y, VPriHeaCoo_flow1.u2); connect(VPriHeaCoo_flow.y, ctlFloMinValHeaCoo.VChiWatPri_flow); connect(VPriHeaCoo_flow1.y, ctlFloMinPumHeaCoo.VChiWatPri_flow); connect(u1HeaEqu.y[1:2], ctlFloMinValHeaCoo.u1HeaHp[1:2]); connect(u1HeaEqu.y[1:2], ctlFloMinPumHeaCoo.u1HeaHp[1:2]); connect(u1EquValPum.y[1:2], u1ValChiWat[1:2].u1); connect(u1EquValPum.y[1:2], u1ValHeaWat[1:2].u1); connect(u1HeaEqu.y[1:2], u1ValHeaWat[1:2].u2); connect(u1HeaEqu.y[1:2], u1CooEqu.u); connect(u1CooEqu.y, u1ValChiWat.u2); connect(u1ValChiWat.y, ctlFloMinValHeaCoo.u1ValChiWatInlIso); connect(u1ValHeaWat.y, ctlFloMinValHeaCoo.u1ValHeaWatInlIso); end ControllerHeatPumps;

model Setpoint "Validation model for the minimum flow setpoint calculation" Buildings.Controls.OBC.CDL.Logical.Sources.TimeTable u1Equ( table=[ 0, 0, 0; 1, 1, 0; 2, 1, 1; 3, 0, 1; 4, 0, 0], timeScale=200, period=900) "Source signal for equipment enable command"; Buildings.Templates.Plants.Controls.MinimumFlow.Setpoint setFloMin( V_flow_nominal={0.02, 0.05}, V_flow_min={0.01, 0.03}, nEqu=2) "Minimum flow setpoint calculation"; equation connect(u1Equ.y[1:2], setFloMin.u1[1:2]); end Setpoint;