Power System To Improve Power Quality Research And Practice

The electrical energy is the primary energy of the national economy and the lives people. It not only is an economy, clean, practical also easy to transform and the control energy shape, also is the special commodity that provides by electric power department and guarantees the quality by the electricity generation, the power supply and the using electricity together. Then it must be same with other commodities, is fastidious the quality. The electrical energy quality is quality of exchanging electrical energy that is supplied to the subscriber's premises through the public electrical network. The modernized technology promotes the production process automation and the intellectualization, set the new request to the electrical energy quality. A computer center of losing power source 2s may destroy the data processing results for several dozens hours or create more than ten million economic losses In the large-scale machine manufacture company, there is on possibly making the unusual production condition and the quality destruction, if the 0.1s voltage falls temporarily. There also are so in the modernized trade center, the bank, the hospital. Thus it is the important to the electrical energy quality.This article has analyzed the energy quality of the Ningbo city electrical network and the domestic in present situation, making the thorough analysis for currently electrical energy quality primary, pointing out serious influence of the national economy and the lives of the people by the electrical energy quality question, proposing the method to unify and govern the control electrical energy quality through the vanguard technology and the Total Quality Management. Technical aspect: the adjustment of voltage deviation; the adjustment of Frequency departure; the suppression of overtone; the suppression of voltage undulation and flickering; the suppression of voltage depreciation. Total Quality Management aspect: responsibility and division of labor to quality control; plan, design and approval of electrical energy quality control; technical management; movement management; uses electricity the management; examination managementThe paper also aims at the actual situation of the Ningbo city supply network, proposing the way to improve the electrical energy quality and the function to conserving energy falls consumes.