Add max_torque_factor for constant power control, flexible upper limit

NREL · May 11, 2022 · f4094ea · f4094ea
1 parent fc44a4a
commit f4094ea
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Showing 3 changed files with 7 additions and 1 deletion.
diff --git a/ROSCO_toolbox/controller.py b/ROSCO_toolbox/controller.py
@@ -186,6 +186,8 @@ def tune_controller(self, turbine):
         Ng = turbine.Ng                         # Gearbox ratio (-)
         rated_rotor_speed = turbine.rated_rotor_speed               # Rated rotor speed (rad/s)
 
+        # ------------- Saturation Limits --------------- #
+        turbine.max_torque = turbine.rated_torque * self.controller_params['max_torque_factor']
 
         # -------------Define Operation Points ------------- #
         TSR_rated = rated_rotor_speed*R/turbine.v_rated  # TSR at rated

diff --git a/ROSCO_toolbox/inputs/toolbox_schema.yaml b/ROSCO_toolbox/inputs/toolbox_schema.yaml
@@ -321,6 +321,11 @@ properties:
                 minimum: 0
                 description: Flap controller time constant for integral gain
                 unit: s
+            max_torque_factor:                     
+                type: number
+                minimum: 0
+                default: 1.1
+                description: Maximum torque = rated torque * max_torque_factor
             IPC_Kp1p:                     
                 type: number
                 minimum: 0

diff --git a/ROSCO_toolbox/turbine.py b/ROSCO_toolbox/turbine.py
@@ -195,7 +195,6 @@ def load_from_fast(self, FAST_InputFile,FAST_directory, FAST_ver='OpenFAST',dev_
         self.yaw = 0.0
         self.J = self.rotor_inertia + self.generator_inertia * self.Ng**2
         self.rated_torque = self.rated_power/(self.GenEff/100*self.rated_rotor_speed*self.Ng)
-        self.max_torque = self.rated_torque * 1.1
         self.rotor_radius = self.TipRad
         # self.omega_dt = np.sqrt(self.DTTorSpr/self.J)