Modeling and Simulation of Sliding Mode Circulating Current Control of Modular Multilevel Converter

 

Implementation Plan:

 

Step 1: Initially, we will construct the three phase modular Multilevel converter by using a DC source and wye Load system in Simulink.

Step 2: Then, we simulate the model and collect current, voltage and power data.

Step 3: Next, we will transform the three-phase (abc) signals into the dq reference frame to simplify control by converting AC quantities into DC-like signals, enabling analysis and regulation of the circulating current based on collected data.

Step 4: Next, we design a Sliding Mode Controller (SMC) using circulating current error to control and reduce it under disturbances based on collected data.

Step 5: Next, we apply the SMC to eliminate second-order harmonics in the circulating current, significantly reducing circulating current and THD to improve efficiency and reducing losses and voltage ripple based on collected data.

Step 6: Finally, we plot performance for the following metrics:

6.1 : Time (s) vs. Circulating Current (A)
6.2 : Time (s) vs. THD (%)
6.3 : Time (s) vs. Power (W)
6.4 : Time (s) vs. Voltage (V)

 

Software Requirements:

 

1. Development Tool: Matlab-R2023a/Simulink or above

2. Operating System: Windows 10 (64-bit) or above

 

Note:

 

1) If the proposed plan does not fully align with your requirements, please provide all necessary details—including steps, parameters, models, and expected outcomes—in advance.

2) Kindly ensure that any missing configurations or specifications are clearly outlined in the plan before confirming.

3) If there’s no built-in solution for what the project needs, we can always turn to reference models, customize our own, different math models or write the code ourselves to fulfil the process.

4) If the plan satisfies your requirement, Please confirm with us.

5) Project based on Simulation only.