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This paper presents dynamic responses of a multi-terminal high voltage DC (MTDC) network in Zhoushan islands, China. The conventional methods of controlling MTDC networks suffered from poor dynamic performance. In this paper, an optimal strategy is derived through three main steps: DC load flow, optimum power flow and N-1 security for MTDC networks. The strategy is fulfilled by incorporating the loss...
To control power flow for integration of distributed energy onto urban power grids, rapid and accurate detection of the amplitude, phase-angle, and frequency offset of the grid voltage's positive and negative sequence components especially under grid fault conditions are more significant. This paper presents a new faults detection method that is capable of tracking signal deviations on the grid-voltage...
To control power flow for multi-terminal high voltage DC (MTDC) grids, the transformations of synchronous reference frames highly relies on the knowledge of the amplitude, phase-angle, and frequency offset of the grid voltage's positive and negative sequence components especially under grid fault conditions. Therefore rapid and accurate detection of the above information are more significant. The...
This paper presents an optimal control of multiterminal high voltage DC (MTDC) networks. The conventional methods of controlling direct voltages of MTDC networks suffered from serials of issues, such as lack of ability to steer the power flow, less expandability to scale up and poor dynamic responses. In this paper, an innovative strategy of regulating DC voltages is derived through three main steps:...
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