A Novel Strategy on Smooth Connection of an Offline MMC Station Into MTDC Systems


Themodular multilevel converter-based multiterminal HVDC (MMC-MTDC) technology has been applied to the Nanao project, that was commissioned successfully in China, and has shown many advantages. However, how to connect an offline MMC station into an operating MTDC system smoothly without expensive dc circuit breakers presents a large challenge. Making full use of the structural characteristics of MMC, the proposed strategy implements the smooth affiliation by sequential operations of the dc disconnectors (DSs) at the positive and negative polarities, without the need for changing system parameters or hardware. The charging circuits of MMC are studied fully when each operation of DSs, and a four-order state equation is built to explore the potential maximum surge current once closing the DSs. Case study and simulation are performed primarily based on the PSCAD/EMTDC model of the Nanao three-terminal MMC-HVDC system to validate the effectiveness of the proposed strategy. Besides simple operation and high reliability, the strategy neither influences the operating system nor will increase any price.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE : A Novel Electricity Price Forecasting Approach Based on Dimension Reduction Strategy and Rough Artificial Neural Networks ABSTRACT: In deregulated energy markets, accurate electricity price forecasting (EPF)
PROJECT TITLE : A Novel Key-Point Detector Based on Sparse Coding ABSTRACT: Harris corner, MSER, SIFT and SURF are among the most common hand-crafted key-point detectors for detecting corners, blobs, or junctions in an image.
PROJECT TITLE : A Novel Retinex-Based Fractional-Order Variational Model for Images With Severely Low Light ABSTRACT: A new fractional-order variational model based on Retinex is proposed in this research for low-light photos.
PROJECT TITLE : A Novel Control Scheme for Enhancing the Transient Performance of an Islanded Hybrid AC-DC Microgrid ABSTRACT: In this research, we present an innovative supplementary feature for increasing the transient performance
PROJECT TITLE : A Novel Forbidden-Region-Based Stability Criterion in Modified Sequence-Domain for AC Grid-Converter System ABSTRACT: For an ac grid-converter system, a new forbidden-region-based criterion (N-FRBC) is presented

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry