Modern smart distribution network coordination planning technology and examples of distributed power source access planning

Due to the introduction of a large number of distributed resources and other new elements, the distribution network presents new characteristics that are different from traditional power grids, thus posing new requirements for the planning work of the distribution network. The future distribution network planning needs to meet the requirements of primary and secondary collaborative coordination planning. Collaborative coordination is reflected in the formulation of planning schemes, that is, while carrying out the primary network planning, it is necessary to simultaneously consider the configuration of relay protection, safety automatic devices, as well as distribution automation and communication configuration, so as to coordinate the primary and secondary schemes. This article mainly introduces the main steps of modern smart distribution network planning technology, and provides an example application of collaborative planning for distributed power generation access. The adoption of primary and secondary coordinated planning helps to achieve the development goals of modern distribution networks that are safe, reliable, cost-effective, clean, and low-carbon.