The energy structure of China's power system is undergoing an accelerated low-carbon transition. To address the increasing complexity of distribution networks and the output fluctuation problems caused by high-penetration renewable energy integration

this paper proposes a coordinated optimal dispatching strategy for a gas-electricity coupled integrated energy system from the distribution network perspective. An optimal dispatching model considering low-carbon economics and renewable energy integration is constructed

with emphasis on analyzing the effects of high-penetration renewable energy

high-proportion natural gas generation

and their coupling on distribution network power flow and load supply under multiple scenarios. Through case studies under typical scenarios

the economic performance and risk factors are comprehensively evaluated

and the effectiveness of the proposed method in optimizing resource allocation and enhancing system flexibility is verified

providing a technical solution to support the achievement of renewable energy penetration targets.