The increasing application of voltage source converter (VSC) based high direct current (VSC-HVDC) technology in power grids has raised the importance incorporating DC and converters into existing transmission network. This poses significant challenges dealing with resulting optimal flow (OPF) problem. In this paper, a recently proposed nonconvex distributed optimization algorithm—Augmented Lagr...

For remote offshore wind farms, transmitting power to the main onshore grid via a Voltage Source Converter High Direct Current (VSC-HVDC) system is mainstream of transmission. It not only cost-effective in long-distance transmission, but also can fully meet side requirements such as black start, voltage support, fault ride through and frequency support. However, it still has some problems, poss...

Abstract A conventional hybrid circuit breaker (HCB) is used to protect a voltage source converter-based high direct current transmission system (VSC-HVDC) from short fault. With the increased converter capacity, DC protection equipment also requires regular upgrade. This paper adopts novel type of HCB with fault limiter (FCLC), and focuses on responses during faults, which are associated param...

Due to the rapid development of economies, large urban cities consume an increasing amount energy and have a higher requirement for power quality. Voltage source converter based high voltage direct current (VSC-HVDC) is promising device transmit clean from remote regions systems, while also providing wide area damping control (WADC) frequency stabilization. However, time-delay naturally existin...

With the large-scale application of LCC-HVDC and VSC-HVDC in power systems, mutually exclusive constraints (MES) appear optimal planning hybrid AC/DC receiving end grid. The MES increase scale construction set substations transmission lines decrease efficiency effectiveness conventional method. This paper proposes a novel grid method with MES. Constraint satisfaction problem (CSP) is utilized t...