Research Article

An Improved Tuning of PID Controller for PV Battery-Powered Brushless DC Motor Speed Regulation Using Hybrid Horse Herd Particle Swarm Optimization

Figure 7

Analysis of BLDC at 1500 rpm: (a) current, (b) voltage, (c) mechanical torque, and (d) motor torque.
(a)
(b)
(c)
(d)