1 概述(Overview)此RT-Box演示模型具有带开环控制的并网模块化多电平变流器(MMC)。演示模型可以在单任务或多任务模式下进行模拟。为了允许多任务模式,必须将物理模型分解为不同的部分。这可以通过PLECS库中的…
The Modular Multilevel Converter system offers many advantages over conventional voltage source converters. Discover OPAL-RT MMC solutions.
The novel MMC topologies, have changed the characteristic of mutual independence among the MMC SM capacitors. As a result, without relying on special voltage balancing control algorithm, on basis of the completion of DC-AC energy conversion by MMC, the energy deviation among capacitors can be ...
结论，此RT-Box演示模型在开环控制下展示了并网MMC逆变器。该模型在RT Box 1、2或3的一个CPU核上以单任务模式运行，或在RT Box 2或3的三个CPU核上以多任务模式运行。多任务模式可显著减少平均执行时间，带来性能提升。
Themodular multilevel converter(MMC) is a reasonably young inverter technology with a promising future in medium voltage DC (MVdc) systems, such as largewind turbinesin the DC collection grids, large PV integration, large marine current and wave energy integration[1–4]. Modularity, redundancy an...
The typical structure of a three phase MMC is shown inFigure 1. Each phase leg of the converter has two arms, an upper and a lower. Each one is constituted by n number of sub-modules (SMs). In each arm, there is also an inductorLdand a resistorRdto com...
The invention discloses an MMC (Modular Multilevel Converter) upper and lower bridge arm separation control method, comprising the steps that a power grid current instruction respectively multiplies by current instruction coefficients ku and kd of upper and lower bridge arms to be used as current ...
TheModular Multilevel Converter (Three-Phase)block models a three-phase modular multilevel converter. Each phase consists of two arms that are implemented with a number of series-connected power submodules. Each submodule consists of a half-bridge or full-bridge converter and a capacitor. ...
This example shows how to control in open-loop a three-phase modular multilevel converter (MMC). Each MMC arm consists of four half-bridge submodules. A wye-connected series RLC structure provides the load to the system. Model Simulation Results from Simscape Logging ...
The invention discloses an MMC (modular multilevel converter) circular current restrain technology based on a second harmonic trap. Aiming at the characteristic that a main component in an MMC bridge arm circular current is second harmonic, coupling inductance is adopted to replace an original bridge...