Time compensated models of switching elements for hardware in loop simulation

Review of Real-time Simulation of Power Electronics

“…Applying the correction compensation method can lower the requirements [30]. At present, researches which focus on the correction method taking efficiency and precision into account can be classified into three categories: interpolation method, correction method and averaging method [27], [30], [34]- [41]. Figure 3 shows the principle of the DIM [34], [35].…”

“…The DIM is equivalent to the voltage-source-type ITM and the PCD method combining by a damping impedance Z * [27]. As shown in Fig.…”

“…The second one is CHIL, when pulse width modulation (PWM) signals of the controller are delivered to the virtual controlled object, it might cause switching delay and multiple switching events. This is influenced by the asynchronous operations between the simulation step size and the action of switching [25]- [27], primarily concentrated on numerical sampling and numerical calculations [19]. The third one is in PHIL, the power interface also causes accuracy problems and stability problems.…”

“…It is important to match the correction method with numerical method. In this way, there are a time compensation algorithm in [27] and an adaptive interpolation algorithm in [34]. About interface algorithms, for PHIL, most of the experiments are now based on the simplest TIM method with obvious weakness.…”

“…2) Search a correction method which has a synergistic effect on the modeling method [86], or set up a high matching modeling based on the correction method algorithm such as that one in [27]. Look for better interface algorithms to promote the universal use of PHIL and to reduce the need for real experimentation.…”