Why do I see huge voltage spikes at the output of a 3 ph MMC(Modular multi-level converter) in Simscape, when the no. of submodules >1 but not with 1?
I have a three phase bi-directional power converter modelled by the Simscape block Modular Multilevel Converter (MMC) set for full bridges. This is controlled by a sinusoidal PWM generator and includes a simple LC filter to filter the inverter’s output and help me see a sine wave at the output. The DC Source is a battery with 1000V. The reference setpoint to the PWM generator is a three phase sine wave generator multiplied with a manual gain block (= 0.565) at the moment (this open loop is intentional while I focus on building the plant model at the moment, and will move on to closed loop controller development in next stages).
Why do I see huge voltage spikes at the output of a 3 ph MMC(Modular multi-level converter) in Simscape, when the no. of submodules >1 but not with 1?
I have a three phase bi-directional power converter modelled by the Simscape block Modular Multilevel Converter (MMC) set for full bridges. This is controlled by a sinusoidal PWM generator and includes a simple LC filter to filter the inverter’s output and help me see a sine wave at the output. The DC Source is a battery with 1000V. The reference setpoint to the PWM generator is a three phase sine wave generator multiplied with a manual gain block (= 0.565) at the moment (this open loop is intentional while I focus on building the plant model at the moment, and will move on to closed loop controller development in next stages).
Why do I see huge voltage spikes at the output of a 3 ph MMC(Modular multi-level converter) in Simscape, when the no. of submodules >1 but not with 1?
I have a three phase bi-directional power converter modelled by the Simscape block Modular Multilevel Converter (MMC) set for full bridges. This is controlled by a sinusoidal PWM generator and includes a simple LC filter to filter the inverter’s output and help me see a sine wave at the output. The DC Source is a battery with 1000V. The reference setpoint to the PWM generator is a three phase sine wave generator multiplied with a manual gain block (= 0.565) at the moment (this open loop is intentional while I focus on building the plant model at the moment, and will move on to closed loop controller development in next stages).
Why do I see huge voltage spikes at the output of a 3 ph MMC(Modular multi-level converter) in Simscape, when the no. of submodules >1 but not with 1?
I have a three phase bi-directional power converter modelled by the Simscape block Modular Multilevel Converter (MMC) set for full bridges. This is controlled by a sinusoidal PWM generator and includes a simple LC filter to filter the inverter’s output and help me see a sine wave at the output. The DC Source is a battery with 1000V. The reference setpoint to the PWM generator is a three phase sine wave generator multiplied with a manual gain block (= 0.565) at the moment (this open loop is intentional while I focus on building the plant model at the moment, and will move on to closed loop controller development in next stages).