Smart Grid Voltage And Reactive Power Control Method

With the depletion of energy resources and environmental pollution problems are worsening, the voice of the people to conserve resources, protect the environment, reducing greenhouse gas emissions. An intelligent power grid have been proposed, which has been proposed to cause widespread concern around the world on the power and industrial, this intelligent grid will gradually become a trend and fashion of the future grid development. Smart grid is currently no uniform definition, but the world in the intelligent power grid construction has features in common, that is, expect the smart grid with self-healing ability, motivational skills and ability to withstand attacks, and can provide high-quality power quality to allow the use of different forms of energy, the electricity can be connected to the grid and optimize power resources and assets to achieve efficient operation. Smart grid environment if you want to achieve good scheduling, it is necessary to coordinate energy saving, economic, security and multiple targets, but also requires the energy-saving operation of the grid and improve grid power quality regulation and control of distributed power reactive and voltage, coordination on the lower scheduling reactive power optimization, optimizing coordination with the user, marketing and maintenance department and other functions. These functions with the basic requirements need to optimize the reactive power and voltage control and management. Therefore, the smart grid environment is very important to strengthen the optimal control of voltage and reactive power.With the improved living standards, quality requirements of users of electricity is high voltage and reactive power are two important indicators to measure the power quality. Within our substation voltage and reactive power most of the traditional nine-partition and reactive power control strategy, Voltage and Reactive Power Control based on the traditional nine partitions exist switching shock frequently adjust phenomenon, and excessive regulation substation transformer tap stalls will affect the life of the transformer, the frequent switching of shunt capacitors will reduce the use of the switching of shunt capacitor switching times, which affects the life of the capacitors in parallel. The need for development of intelligent grid after this paper, a fuzzy control method, voltage and reactive power control strategy optimization, this substation and reactive power control method based on fuzzy control strategy is the theory, fuzzy control can imitate control of the human experience of some uncertain, complex nonlinear problems. And then control the amount of the current substation and reactive power integrated control to solve the understanding of these controls the amount of data about as well as their adjustment method; currently used in several substation and reactive power control model, the formation of fuzzy control rules and to determine input and output membership function, and the formation of a fuzzy controller to be used MATLAB to set up a simple power system model for simulation. This control scheme can effectively control the voltage and reduce the power system network losses, compared with the control strategy with the traditional nine partitions, reducing the number of the regulation of the transformer taps and shunt capacitors.