Transformation of the energy sector to efficiency and climate protection The increasing demand for energy services in conjunction with extensive climate protection targets requires significant changes within the European energy sector. Consequently, a continuous transition from conventional and fossil fuelled power generation to low-carbon or even carbonfree generation is expected in the power ...

This paper analyses reliability data of HVDC systems of Southern China Power Grid. The weak links of HVDC systems’ operational reliability are DC control and protection, valve hall and valve cooling system and transmission lines. Some improvement measures and HVDC system reliability technology are proposed in this paper.

Synchronous generators have always been the dominant generation type in the grid. This fact affected both planning and operation of power systems. With the fast increase of wind power share in the grid in the last decade, the situation is changing. In some countries wind power represents already a consistent amount of the total generation. Wind turbines can be classified as non-synchronous gene...