With the accelerated development of new-type power systems

the existing terrestrial power communication network can no longer meet the communication demands of emerging scenarios and services. Integrated satellite-terrestrial networks incorporating LEO satellites-characterized by global coverage

space-ground redundancy

and high-speed reliability-offer a viable solution to these challenges. This article first elaborates on the background

development

and communication capabilities of integrated satellite-terrestrial networks

providing a reference for power system applications. Furthermore

to address the communication challenges in new-type power systems

this study innovatively proposes an integrated satellite-terrestrial power communication network architecture incorporating LEO satellites. A systematic analysis of security threats and corresponding protection measures is presented

followed by a comprehensive design methodology for the network control system. Key technologies in integrated satellite-terrestrial power communication networks are discussed from five perspectives: network routing algorithms

satellite-terrestrial collaborative transmission

network resource management

network mobility management

and gateway station layout optimization. Finally

the innovative applications of the integrated satellite-terrestrial communication network in four major scenarios of new-type power systems are explored

including wide-area renewable energy integration

transmission line inspection and monitoring

emergency communication

and infrastructure construction supervision

with corresponding application frameworks designed. In the concluding section

we outline future research directions to deepen the convergence between satellite-terrestrial power communication networks and new-type power systems.