With the rapid development of the ultra-high voltage power grid

it has been difficult for the current power grid dispatching and control system to effectively meet the urgent needs of the integral scheduling service access to inter-scheduling agencies. Based on an in-depth analysis of the existing service architecture

a universal access and management method is proposed for wide-area services

and a wide-area service system oriented to the grid control system is built. Through service information release

hierarchical management

multi-dimension analysis and monitoring technology

the management and monitoring of wide-area service is realized. Through service query

load balancing

multi-granularity access control strategy and service access path

the access and control of cross service resource scheduling is implemented. At present

the research results have been applied in engineering practice to provide technical support to fault alarm real-time push

image browsing and model data maintenance in the wide area.