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from sqlalchemy import Column, Integer, String, Float, Boolean, DateTime, JSON, Text, Index
from database.base import Base
# ==============================================================================
# VARIABLE SPEED BASED OPTIMIZATIONS TABLES (VFD FANS, PUMPS, TOWERS)
# ==============================================================================
# 1. Variable Speed Equipment Registry
class VariableSpeedEquipmentDB(Base):
__tablename__ = "variable_speed_equipment"
id = Column(String, primary_key=True) # e.g. "AHU-FAN-01", "CHW-PUMP-01", "CT-FAN-01"
equipment_type = Column(String, nullable=False) # "AHU_FAN", "SUPPLY_FAN", "RETURN_FAN", "CHW_PUMP", "HHW_PUMP", "CW_PUMP", "COOLING_TOWER_FAN"
building_id = Column(String, default="BLD-01")
name = Column(String, nullable=False)
manufacturer = Column(String, default="Schneider / ABB")
rated_power_kw = Column(Float, nullable=False) # e.g. 18.4 kW, 22.0 kW, 30.0 kW
rated_speed_rpm = Column(Float, default=1750.0)
minimum_speed_pct = Column(Float, default=30.0) # VFD minimum safe speed clamp
maximum_speed_pct = Column(Float, default=100.0)
minimum_frequency_hz = Column(Float, default=20.0) # Motor cooling limit
maximum_frequency_hz = Column(Float, default=60.0)
design_flow = Column(Float, nullable=False) # CFM for fans, GPM for pumps
flow_unit = Column(String, default="GPM") # "CFM" or "GPM"
design_pressure = Column(Float, nullable=False) # in.w.c. for fans, PSI / ft head for pumps
pressure_unit = Column(String, default="PSI") # "in.w.c.", "PSI", "ft_hd"
efficiency = Column(Float, default=0.92)
vfd_enabled = Column(Boolean, default=True)
control_mode = Column(String, default="AUTO_CLOSED_LOOP") # "ADVISORY", "AUTO", "AUTO_CLOSED_LOOP", "MANUAL"
status = Column(String, default="RUNNING") # "RUNNING", "STANDBY", "OPTIMAL", "FAULT"
# 2. Variable Speed Telemetry
class VariableSpeedTelemetryDB(Base):
__tablename__ = "variable_speed_telemetry"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
building_id = Column(String, default="BLD-01")
equipment_id = Column(String, nullable=False)
point_id = Column(String, nullable=False)
point_name = Column(String, nullable=False)
value = Column(Float, nullable=False)
unit = Column(String, nullable=False)
quality = Column(String, default="GOOD") # GOOD | BAD | UNCERTAIN | STALE | MISSING
source = Column(String, default="BACnet_IP")
received_at = Column(DateTime, default=datetime.utcnow)
opportunity_id = Column(String, nullable=True)
__table_args__ = (
Index("ix_vs_tel_eq_ts", "equipment_id", "timestamp"),
Index("ix_vs_tel_point_ts", "point_id", "timestamp"),
)
# 3. VFD Fan Measurements
class VFDFanMeasurementDB(Base):
__tablename__ = "vfd_fan_measurements"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
equipment_id = Column(String, nullable=False)
fan_speed_pct = Column(Float, nullable=False)
fan_frequency_hz = Column(Float, nullable=False)
fan_power_kw = Column(Float, nullable=False)
fan_airflow_cfm = Column(Float, nullable=False)
duct_static_pressure_inwc = Column(Float, nullable=False)
static_pressure_setpoint_inwc = Column(Float, default=1.20)
vav_airflow_demand_cfm = Column(Float, default=6500.0)
avg_vav_damper_pct = Column(Float, default=65.0)
max_vav_damper_pct = Column(Float, default=82.0)
critical_zones_count = Column(Integer, default=1)
specific_fan_power = Column(Float, default=1.65) # kW/(m3/s)
# 4. VFD Pump Measurements
class VFDPumpMeasurementDB(Base):
__tablename__ = "vfd_pump_measurements"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
equipment_id = Column(String, nullable=False)
pump_type = Column(String, nullable=False) # "CHW_PUMP", "HHW_PUMP", "CW_PUMP", "SECONDARY_PUMP"
pump_speed_pct = Column(Float, nullable=False)
pump_frequency_hz = Column(Float, nullable=False)
pump_power_kw = Column(Float, nullable=False)
flow_gpm = Column(Float, nullable=False)
differential_pressure_psi = Column(Float, nullable=False)
dp_setpoint_psi = Column(Float, default=14.0)
supply_temp_c = Column(Float, default=6.7)
return_temp_c = Column(Float, default=12.2)
delta_t_c = Column(Float, default=5.5)
chiller_load_pct = Column(Float, default=68.0)
valve_positions_avg_pct = Column(Float, default=72.0)
# 5. VFD Inverter Measurements
class VfdMeasurementDB(Base):
__tablename__ = "vfd_measurements"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
equipment_id = Column(String, nullable=False)
frequency_hz = Column(Float, nullable=False)
output_voltage_v = Column(Float, default=460.0)
output_current_a = Column(Float, default=26.5)
motor_rpm = Column(Float, default=1450.0)
dc_bus_voltage_v = Column(Float, default=650.0)
inverter_temp_c = Column(Float, default=42.5)
vfd_fault_code = Column(String, default="NORMAL_00")
power_factor = Column(Float, default=0.94)
# 6. Optimization Predictions (ML Output)
class VariableSpeedPredictionDB(Base):
__tablename__ = "variable_speed_predictions"
id = Column(String, primary_key=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
equipment_id = Column(String, nullable=False)
agent_id = Column(String, nullable=False)
model_version = Column(String, default="v2.5.0-xgb-affinity")
current_speed = Column(Float, nullable=False)
recommended_speed = Column(Float, nullable=False)
current_power_kw = Column(Float, nullable=False)
predicted_power_kw = Column(Float, nullable=False)
power_savings_kw = Column(Float, default=0.0)
predicted_flow = Column(Float, nullable=False)
predicted_pressure = Column(Float, nullable=False)
confidence = Column(Float, default=0.96)
safety_status = Column(String, default="PASS")
status = Column(String, default="OPTIMAL")
reason = Column(Text, nullable=False)
# 7. Optimization Recommendations
class VariableSpeedRecommendationDB(Base):
__tablename__ = "variable_speed_recommendations"
recommendation_id = Column(String, primary_key=True)
opportunity_id = Column(String, nullable=False) # "VS-FAN", "VS-PUMP", "VS-CHW", "VS-CW", "VS-CT"
equipment_id = Column(String, nullable=False)
current_speed = Column(Float, nullable=False)
recommended_speed = Column(Float, nullable=False)
current_power_kw = Column(Float, nullable=False)
predicted_power_kw = Column(Float, nullable=False)
expected_savings_kw = Column(Float, default=0.0)
expected_savings_kwh_day = Column(Float, default=0.0)
confidence = Column(Float, default=0.96)
reason = Column(Text, nullable=False)
safety_status = Column(String, default="PASS")
dispatch_status = Column(String, default="READY")
timestamp = Column(DateTime, default=datetime.utcnow)
# 8. Optimization Actions (BMS Dispatches)
class VariableSpeedActionDB(Base):
__tablename__ = "variable_speed_actions"
id = Column(String, primary_key=True)
recommendation_id = Column(String, nullable=True)
equipment_id = Column(String, nullable=False)
opportunity_id = Column(String, nullable=False)
target_point = Column(String, nullable=False) # e.g. "AHU-FAN-01.SpeedSetpoint"
dispatched_value = Column(Float, nullable=False)
previous_value = Column(Float, nullable=False)
unit = Column(String, default="%")
priority_level = Column(Integer, default=10)
dispatched_by = Column(String, default="VARIABLE_SPEED_AI")
timestamp = Column(DateTime, default=datetime.utcnow)
bms_status = Column(String, default="ACKNOWLEDGED")
# 9. Optimization Results (15-min M&V)
class VariableSpeedResultDB(Base):
__tablename__ = "variable_speed_results"
id = Column(Integer, primary_key=True, autoincrement=True)
action_id = Column(String, nullable=False)
equipment_id = Column(String, nullable=False)
timestamp = Column(DateTime, default=datetime.utcnow)
baseline_power_kw = Column(Float, default=0.0)
optimized_power_kw = Column(Float, default=0.0)
measured_power_savings_kw = Column(Float, default=0.0)
verified_energy_savings_kwh = Column(Float, default=0.0)
airflow_comfort_preserved = Column(Boolean, default=True)
pressure_preserved = Column(Boolean, default=True)
verification_outcome = Column(String, default="VERIFIED_KEPT") # "VERIFIED_KEPT", "ROLLED_BACK"
# 10. Safety Constraints & Guardrails
class VariableSpeedSafetyConstraintDB(Base):
__tablename__ = "variable_speed_safety_constraints"
id = Column(String, primary_key=True)
equipment_id = Column(String, nullable=False)
rule_name = Column(String, nullable=False)
min_speed_pct = Column(Float, nullable=False)
max_speed_pct = Column(Float, nullable=False)
min_flow = Column(Float, nullable=False)
max_flow = Column(Float, nullable=False)
min_pressure = Column(Float, nullable=False)
max_pressure = Column(Float, nullable=False)
min_frequency_hz = Column(Float, default=20.0)
max_frequency_hz = Column(Float, default=60.0)
ramp_rate_limit_pct_per_min = Column(Float, default=10.0)
is_active = Column(Boolean, default=True)
# 11. Model Versions
class VariableSpeedModelVersionDB(Base):
__tablename__ = "variable_speed_model_versions"
id = Column(String, primary_key=True)
agent_id = Column(String, nullable=False)
version = Column(String, nullable=False)
algorithm = Column(String, default="XGBoost_Affinity_Hybrid")
trained_timestamp = Column(DateTime, default=datetime.utcnow)
mae_power_kw = Column(Float, default=0.28)
rmse_power_kw = Column(Float, default=0.45)
r2_score = Column(Float, default=0.975)
status = Column(String, default="PRODUCTION") # "PRODUCTION", "STAGING", "MODEL_DEGRADED"
# 12. Energy Savings Measurement
class VariableSpeedEnergySavingsDB(Base):
__tablename__ = "variable_speed_energy_savings"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
equipment_id = Column(String, nullable=False)
category = Column(String, nullable=False) # "FAN", "PUMP", "CHW", "CW", "TOWER"
predicted_savings_kw = Column(Float, default=0.0)
measured_savings_kw = Column(Float, default=0.0)
verified_savings_kwh = Column(Float, default=0.0)
calculation_method = Column(String, default="IPMVP_Option_B")
# 13. Audit Logs
class VariableSpeedAuditLogDB(Base):
__tablename__ = "variable_speed_audit_logs"
id = Column(Integer, primary_key=True, autoincrement=True)
timestamp = Column(DateTime, default=datetime.utcnow, index=True)
agent = Column(String, nullable=False)
equipment_id = Column(String, nullable=False)
current_value = Column(Float, nullable=False)
recommended_value = Column(Float, nullable=False)
final_value = Column(Float, nullable=False)
reason = Column(Text, nullable=False)
model_version = Column(String, default="v2.5.0")
confidence = Column(Float, default=0.96)
safety_result = Column(String, default="PASS")
operator_mode = Column(String, default="AUTO_CLOSED_LOOP")
dispatch_result = Column(String, default="SUCCESS")
verification_result = Column(String, default="VERIFIED_KEPT")
rollback_result = Column(String, nullable=True)
details = Column(JSON, nullable=True)
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