Research On New Unified Power Quality Conditioner

With the social and economic development, there is a growing foucus on green energy and the environment, able to integrate wind power,solar power and other renewable energy power generation came into the microgrid. Voltage dips, transient power quality problems such as power generators for only a few microgrid is very serious. Same piconet is facing due to extensive use of nonlinear loads such as harmonic currents caused by power quality problems. This paper presents a micro-network for improving power quality problems under the conditions of design of the device. It is in APF based on the increase super capacitor energy storage system, implements the requirements of multi-functional, so that the device effectively solve the harmonic and reactive power compensation at the same time, can solve the voltage drop, voltage fluctuation and flicker, short-term power outages and other power quality problems.This paper systematically describes the working principle and the components of the device, a new harmonic and reactive current detection method, compared to the traditional reactive power based on the harmonic and reactive current detection method, this method computation load is small,the operating speed is quick.. The voltage which appears to microgrid in falls and so on voltage quality questions temporarily, the paper has carried on the analysis to the compensation process, has obtained the smallest injection current which the installment needs and pours into the capacity. Finally the simulation result indicated that this equipment may solve the electrical energy quality problem which effectively in microgrid exists...