An outlook on endangering grid security in India due to implementation challenges of low voltage ride through protection in wind turbines

Abstract

The substantial increase in new integration of wind power has required changes in grid codes to ensure grid security. Providing low voltage ride through (LVRT) protection helps to sustain the transient conditions without tripping and supports its recovery post-fault. The grid codes for LVRT capability in countries with substantial wind capacity are surveyed in this paper. The challenges that arise, endangering the grid security due to the nonimplementation of these grid codes in the wind turbines (WT) which were preinstalled before the mandatory grid code was established is rarely a topic focused in literature. The LVRT capability requirement as per the wind turbine type classification is elucidated. The challenges due to enhancement and upgradation of technology include financial constraints for additional LVRT fittings, planning and renovation. Discussion and prognosis on the challenges provide direction for investigation and research. K E Y W O R D S fault ride-through, grid codes, Indian grid, Indian wind turbines, low voltage ride through, wind turbine type 1 | INTRODUCTION The significant growth in wind power, in large part to address environmental issues, has made wind energy an increasingly applied energy source. 1 With the expanding grid integration for wind power, network operators have to confirm that consumer power quality is not negotiated. The rigidness of the power system is being modified and advanced

Research and application of intelligent information processing system in power hierarchical control

“…At the same time, due to the vulnerability of large power grids to irresistible natural or accidental disasters and the fear of increasing terrorist activities, distributed power generation combined with centralized power generation is the optimal form of power demand for today's society to avoid "domino" type of grid chain disasters and to ensure the safety and reliability of power supply. To avoid a "domino" grid chain disaster, the combination of distributed generation and centralized generation is the optimal form of electricity demand for today's society to ensure the safety and reliability of power supply [2][3].…”