What is a smart grid and what are its advantages? What are the current challenges?

Smart grid is a new modern power grid formed by highly integrating advanced sensor measurement technology, information communication technology, analysis and decision technology and automatic control technology with energy and power technology (mainly communication, information and modern management technology) and grid infrastructure. .

Compared with the existing power grid, the smart grid reflects the remarkable characteristics of a high degree of integration of power flow, information flow and business flow. The main advantages of smart grid are as follows:
(1) Improve power supply reliability and power quality, obtain panoramic information of the power grid, and discover and predict possible failures in time.
(2) Improve energy efficiency and reduce power consumption loss.
(3) Support energy saving and emission reduction policies.
(4) It displays a comprehensive, complete and detailed operation status diagram for operation management, and can provide support, implementation plans and response plans, which has huge economic benefits.

The technical challenges faced by the smart grid are as follows;
(1) Smart devices. Refers to all devices based on computers or microprocessors, including controllers, remote terminal units (RTU), intelligent electronic devices (IED) and power equipment.
(2) Communication system. Mainly refers to communication media and communication protocols under development to ensure the interoperability and security of smart grids.
(3) Data management. It is one of the most time-consuming and arduous tasks.
(4) Network security. Refers to ensuring the confidentiality, integrity and availability of information.
(5) The privacy management of information/data is a major and critical issue.
(6) Software applications are the core and node of each function of the smart grid.

The management challenges faced by the smart grid are as follows:
(1) A wide range of stakeholders.
(2) The complexity of the smart grid in terms of human, financial and environmental requirements.
(3) The long transition process of the smart grid.
(4) Ensure the network security of the system.
(5) Reach a consensus on the standard.
(6) Standard formulation and support.