Wind Turbine¶
Wind turbine — NREL 5 MW reference turbine, collective-pitch power regulation.
| Action space | Box((2,)), all actions in [-1, 1] |
| Observation space | Box((5,)) |
| Tracked variable(s) | electrical power (MW) |
| Episode length | 400 steps (100 s at 0.25 s per step) |
| Import | from target_gym import WindTurbine, WindTurbineParams |
| Cite as | wind_turbine-v1 |
Action space¶
Actions are normalised to [-1, 1] and mapped onto the plant's real
actuator range inside the environment.
| # | meaning | min | max |
|---|---|---|---|
| 0 | pitch_raw | -1 | 1 |
| 1 | torque_raw | -1 | 1 |
Observation space¶
5 values. Indices (3,) carry the tracked variable(s) that the reward scores.
Rewards¶
Power tracking minus a pitch-activity penalty (a fatigue proxy).
Every environment in this suite scores on one contract: the reward is
(tracking terms, multiplied) x (1 - weighted costs), bounded in
[0, 1], and reaches 1 only while the target is held exactly. See
Reward shaping.
Starting state¶
reset samples the initial condition and the target; state has 9 fields.
Episode end¶
Termination. See check_is_terminal.
Truncation. After 400 steps.
Baselines¶
A tuned PID ships with this environment.
Arguments¶
| parameter | default |
|---|---|
delta_t |
0.25 |
max_steps_in_episode |
400 |
R |
63 |
rho |
1.225 |
J_rotor |
3.87592e+07 |
J_gen |
534.116 |
N_gear |
97 |
eta_gen |
0.944 |
P_rated |
5e+06 |
v_rated |
11.4 |
omega_rated_rpm |
12.1 |
v_cut_out |
25 |
cp_c1 |
0.5176 |
cp_c2 |
116 |
| … | 19 more, see the params dataclass |