| With the continuous improvement of manufacturing level in all walks of life,the demand for electricity for industrial life is increasing,and all kinds of electric power enterprises are facing unprecedented development opportunities in a new era.At the same time,however,many enterprises are facing survival challenges in the increasingly competitive market.In order to ensure that they can stand out in the fierce market competition,many power enterprises are committed to the construction of reli able power supply system,aiming to achieve stable and efficient power supply with the help of the system,so as to strengthen their competitive strength.As an important technical means to improve the reliability of power supply,the optimization pilot pr oject of distribution station automation technology has been included in the urban network transformation plan.It has been continuously expanded from the original local pilot to the campus power distribution,and then to the current cross regional power s upply,its application degree has continued to deepen,and the scope of coverage is also expanding.However,there are several problems: firstly,the distribution scale is large,so it is unable to realize the coupling of overall improvement and high efficiency.Secondly,a series of matching software has not been established,and the communication mode needs to be optimized;secondly,an effective and comprehensive analysis software has not been built,which cannot guarantee the efficient transmission of information and the overall analysis.It fails to meet the needs of power supply company to obtain the self-healing,alarm,relevant operation data,operation status analysis and economic operation analysis of distribution station area.In this paper,combined with a series of problems during the early application practice,based on the southern power grid and Guangzhou Power Supply Bureau Limited Panyu Power Supply Bureau in the actual power supply period,a detailed exploration and analysis will be carried out to complete the optimization and upgrading of the power supply system with the help of the selection of efficient communication methods.So as to realize the smooth research and development of intelligent terminal for operation and management of distribution station area,and promote the power supply operation and management to be more comprehensive and flexible,to meet the real-time demand,accurate demand,remote operation demand and operation and maintenance convenience demand of automation technology in distribution station area.First of all,based on the actual level,the automation program of distribution network system in our country is studied,and then the relevant operation experience of distribution network station area is further used for reference.The intelligent low-voltage switch with communication,status monitoring,fault isolation function,remote control and the intelligent terminal for operation management of distribution station area are designed,and the structure of switch and terminal is reasonably set in combination with the current technical specifications Main technical performance.After that,we use the method of comparative analysis to make a scientific comparison of the series of communication modes,so as to ensure the reasonable and efficient selection of communication modes,and then realize the formulation of the communication scheme with sound,safe and reliable technology and high degree of promotion,and further apply it to the specific process of the first series of information acquisition and monitoring in the distribution station area,so as to overcome the large data and high demand for safety performance of the power grid It is difficult to be widely distributed.Finally,the data analysis and statistical functions needed for real-time online economic operation and optimization analysis are designed,that is,based on the real-time data monitoring of the station area,a large number of index data such as three-phase imbalance rate,heavy load rate,voltage disqualification rate,zero sequence current,power consumption change trend are stored,calculated and analyzed to achieve real-time acquisition of distribution transformer dynamic change The purpose of this paper is to understand its status and explore the possible development and change in real time.As a part of the follow-up function of big data analysis and statistics of power grid,it changes the current situation of post judgment,slow fault handling efficiency and low reliability,and provides full guarantee for the efficient and reasonable construction of the entire distribution system.Through the pilot operation of Panyu Power Supply Bureau,the application effect of the optimization scheme of automation technology in the distribution station area is analyzed,and the operation experience and shortcomings are summarized for further research and improvement. |
