Add baseline supervisory hybrid plant controller

docs/controllers.md

@@ -48,3 +48,12 @@ Integral action, as well as gain scheduling based on turbine saturation, has bee
 simple proportional control appears sufficient currently. However, these may be enabled at a 
 later date if needed. The `proportional_gain` for the controller may be provided on instantiation,
 and defaults to `proportional_gain = 1`.
+
+### HybridSupervisoryControllerBaseline
+
+Simple closed-loop supervisory controller for a hybrid wind/solar/battery plant.
+Reads in current power production from wind, solar, and battery, as well as a plant power reference. Contains logic to increase the power references sent to wind, solar, and battery if the power reference is not met, and to charge the battery if there is a power surplus from wind and solar. Those references are then handled by the
+operational controllers for wind, solar, and battery, which are assigned to the
+`HybridSupervisoryControllerBaseline` on instantiation to distribute the bulk references to each
+asset amongst the individual generators. Currently, only wind actually distributes the power.
+Intended as a baseline for comparison by a more advanced supervisory controller.

docs/interfaces.md

@@ -28,6 +28,14 @@ the WHOC controllers submodule; and that `controller` should be passed to the
 Hercules `Emulator` upon its instantiation. Support transmitting yaw angles 
 and power setpoints to wind turbines.
 
+### HerculesHybridADInterface
+For direct python communication with Hercules, when simulating a hybrid 
+wind/solar/battery plant. Currently, intended for use with the
+`HybridSupervisoryControllerBaseline`, while full closed-loop supervisory
+controllers for hybrid power plants are built out. Supports sending power
+reference signals to each wind turbine in a wind farm, as well as a bulk power
+signal to the solar farm and a bulk power signal to the battery.
+
 ### ROSCO_ZMQInterface
 For sending and receiving communications from one or more ROSCO instances 
 (which are likely connected to OpenFAST and FAST.Farm). Uses ZeroMQ to pass