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1 : // EnergyPlus, Copyright (c) 1996-2023, The Board of Trustees of the University of Illinois,
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47 :
48 : #ifndef DemandManager_hh_INCLUDED
49 : #define DemandManager_hh_INCLUDED
50 :
51 : // C++ Headers
52 : #include <unordered_map>
53 :
54 : // ObjexxFCL Headers
55 : #include <ObjexxFCL/Array1D.hh>
56 :
57 : // EnergyPlus Headers
58 : #include <EnergyPlus/Data/BaseData.hh>
59 : #include <EnergyPlus/DataGlobals.hh>
60 : #include <EnergyPlus/EnergyPlus.hh>
61 :
62 : namespace EnergyPlus {
63 :
64 : // Forward declarations
65 : struct EnergyPlusData;
66 :
67 : namespace DemandManager {
68 :
69 : // MODULE PARAMETER DEFINITIONS:
70 : enum class ManagerType
71 : {
72 : Invalid = -1,
73 : ExtLights,
74 : Lights,
75 : ElecEquip,
76 : Thermostats,
77 : Ventilation,
78 : Num
79 : };
80 :
81 : enum class ManagePriorityType
82 : {
83 : Invalid = -1,
84 : Sequential,
85 : Optimal,
86 : All,
87 : Num
88 : };
89 :
90 : enum class ManagerLimit
91 : {
92 : Invalid = -1,
93 : Off,
94 : Fixed,
95 : Variable,
96 : ReductionRatio,
97 : Num
98 : };
99 :
100 : enum class ManagerSelection
101 : {
102 : Invalid = -1,
103 : All,
104 : Many,
105 : One,
106 : Num
107 : };
108 :
109 : enum class DemandAction
110 : {
111 : Invalid = -1,
112 : CheckCanReduce,
113 : SetLimit,
114 : ClearLimit,
115 : Num
116 : };
117 :
118 : // Types
119 18 : struct DemandManagerListData
120 : {
121 : // Members
122 : std::string Name; // Name of DEMAND MANAGER LIST
123 : int Meter; // Index to meter to demand limit
124 : int LimitSchedule; // Schedule index for demand limit
125 : Real64 SafetyFraction; // Multiplier applied to demand limit schedule
126 : int BillingSchedule; // Schedule index for billing month periods
127 : Real64 BillingPeriod; // Current billing period value
128 : int PeakSchedule; // Schedule index for billing month periods
129 : int AveragingWindow; // Number of timesteps for averaging demand window
130 : Array1D<Real64> History; // Demand window history
131 : ManagePriorityType ManagerPriority; // Indicator for priority (SEQUENTIAL, OPTIMAL, ALL)
132 : int NumOfManager = 0; // Number of DEMAND MANAGERs
133 : Array1D_int Manager; // Indexes for DEMAND MANAGERs
134 : Real64 MeterDemand; // Meter demand at this timestep
135 : Real64 AverageDemand; // Current demand over the demand window
136 : Real64 PeakDemand; // Peak demand in the billing month so far
137 : Real64 ScheduledLimit; // Scheduled demand limit
138 : Real64 DemandLimit; // Scheduled demand limit * Safety Fraction
139 : Real64 AvoidedDemand; // Demand avoided by active DEMAND MANAGERs
140 : Real64 OverLimit; // Amount that demand limit is exceeded
141 : Real64 OverLimitDuration; // Number of hours that demand limit is exceeded
142 :
143 : // Default Constructor
144 6 : DemandManagerListData()
145 6 : : Meter(0), LimitSchedule(0), SafetyFraction(1.0), BillingSchedule(0), BillingPeriod(0.0), PeakSchedule(0), AveragingWindow(1),
146 : ManagerPriority(ManagePriorityType::Invalid), MeterDemand(0.0), AverageDemand(0.0), PeakDemand(0.0), ScheduledLimit(0.0),
147 6 : DemandLimit(0.0), AvoidedDemand(0.0), OverLimit(0.0), OverLimitDuration(0.0)
148 : {
149 6 : }
150 : };
151 :
152 78 : struct DemandManagerData
153 : {
154 : // Members
155 : std::string Name; // Name of DEMAND MANAGER
156 : ManagerType Type; // Type of DEMAND MANAGER (:LIGHTS, :ELECTRICEQUIPMENT, etc.)
157 : int DemandManagerList; // Reference to parent DEMAND MANAGER LIST for error checking
158 : bool CanReduceDemand; // Flag to indicate whether manager can reduce demand
159 : int AvailSchedule; // Schedule index pointer for Availability Schedule
160 : bool Available; // Availability flag
161 : bool Activate; // Flag to activate the manager
162 : bool Active; // Flag to indicate that the manager is active
163 : ManagerLimit LimitControl;
164 : ManagerSelection SelectionControl;
165 : int LimitDuration; // Minimum duration of demand manager activity (min)
166 : int ElapsedTime; // Elapsed time for the demand manager activity (min)
167 : int RotationDuration; // Rotation duration (min)
168 : int ElapsedRotationTime; // Elapsed time for the current rotation (min)
169 : int RotatedLoadNum; // Index for rotated load
170 : Real64 LowerLimit; // Lowest demand limit as fraction of design level
171 : // Lowest heating setpoint for thermostats
172 : Real64 UpperLimit; // Not used for demand limit
173 : // Highest cooling setpoint for thermostats
174 : int NumOfLoads; // Number of load objects
175 : Array1D_int Load; // Pointers to load objects
176 :
177 : // Additional fields related to DemandManager:Ventilation
178 : Real64 FixedRate; // m3 per person
179 : Real64 ReductionRatio; // % of reduction
180 :
181 : // Default Constructor
182 6 : DemandManagerData()
183 6 : : Type(ManagerType::Invalid), DemandManagerList(0), CanReduceDemand(false), AvailSchedule(0), Available(false), Activate(false),
184 : Active(false), LimitControl(ManagerLimit::Invalid), SelectionControl(ManagerSelection::Invalid), LimitDuration(0), ElapsedTime(0),
185 : RotationDuration(0), ElapsedRotationTime(0), RotatedLoadNum(0), LowerLimit(0.0), UpperLimit(0.0), NumOfLoads(0), FixedRate(0.0),
186 6 : ReductionRatio(0.0)
187 : {
188 6 : }
189 : };
190 :
191 : void ManageDemand(EnergyPlusData &state);
192 :
193 : void SimulateDemandManagerList(EnergyPlusData &state,
194 : int ListNum,
195 : bool &ResimExt, // Flag to resimulate the exterior energy use simulation
196 : bool &ResimHB, // Flag to resimulate the heat balance simulation (including HVAC)
197 : bool &ResimHVAC // Flag to resimulate the HVAC simulation
198 : );
199 :
200 : void GetDemandManagerListInput(EnergyPlusData &state);
201 :
202 : void GetDemandManagerInput(EnergyPlusData &state);
203 :
204 : void SurveyDemandManagers(EnergyPlusData &state);
205 :
206 : void ActivateDemandManagers(EnergyPlusData &state);
207 :
208 : void UpdateDemandManagers(EnergyPlusData &state);
209 :
210 : void ReportDemandManagerList(EnergyPlusData &state, int ListNum);
211 :
212 : void LoadInterface(EnergyPlusData &state, DemandAction Action, int MgrNum, int LoadPtr, bool &CanReduceDemand);
213 :
214 : void InitDemandManagers(EnergyPlusData &state);
215 :
216 : } // namespace DemandManager
217 :
218 1542 : struct DemandManagerData : BaseGlobalStruct
219 : {
220 : int NumDemandManagerList = 0;
221 : int NumDemandMgr = 0;
222 : int DemandManagerExtIterations = 0;
223 : int DemandManagerHBIterations = 0;
224 : int DemandManagerHVACIterations = 0;
225 : bool GetInput = true; // Flag to prevent input from being read multiple times
226 : Array1D<DemandManager::DemandManagerListData> DemandManagerList;
227 : Array1D<DemandManager::DemandManagerData> DemandMgr;
228 : std::unordered_map<std::string, std::string> UniqueDemandMgrNames;
229 : bool ClearHistory = true;
230 : bool BeginDemandSim = true;
231 : bool ResimHVAC = true;
232 : bool ResimHB = true;
233 : bool ResimExt = true;
234 : bool firstTime = true;
235 :
236 0 : void clear_state() override
237 : {
238 0 : NumDemandManagerList = 0;
239 0 : NumDemandMgr = 0;
240 0 : DemandManagerExtIterations = 0;
241 0 : DemandManagerHBIterations = 0;
242 0 : DemandManagerHVACIterations = 0;
243 0 : GetInput = true;
244 0 : DemandManagerList.deallocate();
245 0 : DemandMgr.deallocate();
246 0 : UniqueDemandMgrNames.clear();
247 0 : ClearHistory = true;
248 0 : BeginDemandSim = true;
249 0 : ResimHVAC = true;
250 0 : ResimHB = true;
251 0 : ResimExt = true;
252 0 : firstTime = true;
253 0 : }
254 : };
255 :
256 : } // namespace EnergyPlus
257 :
258 : #endif
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