CSEE Journal of
Power & Energy Systems

The ubiquitous power Internet of Things (UPIoT) uses modern information technology and advanced communication technologies to realize interconnection and human-computer interaction in all aspects of the power system. UPIoT has the characteristics of compr

A hybrid UHVDC transmission system applying LCC as the rectifier and MMC as the inverter combines the advantages of both converter types, which makes this protection scheme more complicated. A new pilot protection scheme for a three-terminal hybrid DC transmission system applying energy functions is proposed. The energy function for LCC is applied to MMC to derive the energy level of the hybrid sy...

To achieve the goal of carbon neutrality, renewable energy integration through a voltage source converter based multi-terminal direct current (VSC-MTDC) system has been identified as a promising solution. To tackle the significant DC voltage over-limit problem in a VSC-MTDC system during disturbances, this paper proposes a mode-switching strategy of droop control considering maximum DC voltage reg...

Energy transition towards clean, efficient energy supply has been a common sense of the government and public in China. However, lacking reasonable planning will lead to undisciplined development, resource waste, and excessive investment. In this context, this paper investigates potential pathways of Beijing energy transition towards a high-level low-carbon, clean and efficient energy system in 20...

Demand response has been recognized as a valuable functionality of power systems for mitigating power imbalances. This paper proposes a hierarchical control strategy among the distribution system operator (DSO), load aggregators (LAs), and thermostatically controlled loads (TCLs); the strategy includes a scheduling layer and an executive layer to provide load regulation. In the scheduling layer, t...