Pingyang Sun
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A Partially Rated Interlinking Converter With Distributed Energy Storage for Active Power Sharing in DC Microgrids Open
Partially rated dc interlinking converters are recognized for their high-gain power regulation capabilities, which effectively synergize active power across dc microgrids (DCMGs). Integrating energy storage units (ESUs) to address the inte…
View article: Analytical Calculation Models for Bipolar MMC-HVDC Systems Under Valve-Side Single-Phase-to-Ground Faults
Analytical Calculation Models for Bipolar MMC-HVDC Systems Under Valve-Side Single-Phase-to-Ground Faults Open
This paper proposes two analytical valve-side single-phase-to-ground (SPG) fault calculation models for bipolar modular multilevel converter-based high-voltage direct current (MMC-HVDC) system. The first model is applicable to the half-bri…
View article: Valve-Side Single-Phase-to-Ground Fault Analysis in Bipolar MMC-HVDC Systems With Hybrid SMs
Valve-Side Single-Phase-to-Ground Fault Analysis in Bipolar MMC-HVDC Systems With Hybrid SMs Open
This letter presents a comprehensive fault analysis for a modular multilevel converter high-voltage direct current (MMC-HVDC) system with hybrid half-bridge submodules (HBSMs) and full-bridge SMs (FBSMs) under valve-side single-phase-to-gr…
Physics-Informed Fully Convolutional Network-Based Power Flow Analysis for Multi-Terminal MVDC Distribution Systems Open
Numerical methods in power flow (PF) studies for medium-voltage direct current (MVDC) distribution systems require repetitive computations, particularly in scenarios with time-variable facilities that often alter the system operation point…
A data‐driven identification method for impedance stability analysis of inverter‐based resources Open
Obtaining inverter controller information may be a premise for seeking its dynamic behaviour. But accurate knowledge of such information would be unrealistic for real functioning inverter‐interfaced generators (IIGs), which hinders the sta…
Sequential power flow algorithm and post-event steady-state power distribution analysis in hybrid AC/MT-MVDC systems Open
In hybrid ac/multi-terminal medium-voltage dc (AC/MT-MVDC) systems with multiple voltage source converters (VSCs) and dc/dc converters, it is essential to attain accurate initial power flow (PF) and post-event power distribution solutions …
View article: Beyond the MMC: Extended Modular Multilevel Converter Topologies and Applications
Beyond the MMC: Extended Modular Multilevel Converter Topologies and Applications Open
The unique advantages of modular multilevel converters (MMCs) have led to wide adoption of the converter topology in high voltage dc (HVDC) transmission systems, with great potential for use in medium voltage motor drive and dc grid applic…
Interoperability of Modular Multilevel and Alternate Arm Converters in Hybrid HVDC Systems Open
This paper demonstrates the interoperability of an emerging alternate arm converter (AAC) with the state-of-the-art modular multilevel converter (MMC) in high-voltage direct current (HVDC) systems based on a hybrid VSC-HVDC system. The pap…
Assessment of Low-Loss Configurations for Efficiency Improvement in Hybrid Modular Multilevel Converters Open
Hybrid modular multilevel converters (HMMC) address the DC-fault blocking limitations of the half-bridge submodules (HB-SMs) of the standard MMC by combining HB-SMs with full-bridge submodules (FB-SMs). In order to improve the overall conv…
A Hybrid VSC-HVDC System based on Modular Multilevel Converter and Alternate Arm Converter Open
The interoperability challenges of emerging modular voltage source converter (VSC) topologies HVDC systems should be addressed along with rapid transformation of power systems driven by the need for more interconnected networks. This paper…
Benchmark Models for HVDC Systems and DC-Grid Studies Open
The advantages of HVDC transmission in the current electricity grid environment have sparked an increased interest on HVDC system studies. A common challenge is the proper comparison and evaluation of different systems and control methods.…