Sufficient reactive power reserve of power grid is an important measure to ensure system voltage stability, hence as one of important approaches to prevent voltage instability, in daily optimal dispatch of reactive power the increase of reactive power reserve of power grid should be considered.

The larger the system reactive power reserve capacity is, the bigger the system voltage stability margin is, so multi-objective reactive power compensation planning to improve the system reactive power reserve is proposed.

Discussion on over voltage protection of reactive compensation device for aluminum smelters;

Development of composite control equipment for voltage reactive power in substation substations;

Study of substation reactive control system based on the function of RTU;

Risk-based assessment for reactive power source in electricity markets;

Design of voltage and reactive power fuzzy control system for 10 kV substation;

Design of voltage and reactive power integrated control system for substation;