1、under frequency load shedding
2、Based on the under voltage load shedding schemes in other provincial power grids across the country, the under voltage load shedding scheme for Tianjin power grid is formulated.
3、Improvement of low-voltage and low-frequency load shedding devices in Houjiawan transformer substation
4、Study on difference of regional frequency characteristics of interconnected power system and its influence on under-frequency load shedding
5、But frustratedSouth Africans have been warned that periods of occasional blackouts,euphemistically known as “load shedding”, will be a fact of life for at leastanother five years.
6、Underfrequency load shedding (UFLS) is a widely accepted effective measure to repress further frequency drop. Most of UFLS schemes use pre specified steps based on measured frequency to shed load.
7、On this basis, calculation method of operation cost, wind curtailment cost and load shedding cost is determined. Meanwhile, uncertainty set is optimized with purpose of the lowest total cost.
