Smart grid technology will become a "magic weapon" for power energy conservation

China is one of the countries with the largest demand for electricity in the world, and smart grid technology will be the key to the future supply of high-quality, clean, reliable and continuous power to society, integrating traditional and cutting-edge power engineering, advanced sensing and monitoring technology, information technology and communication means to provide better grid performance and provide users with various value-added services
.

At present, smart grid includes four major technology areas (i.
e.
intelligent decision-making, advanced communications, sensors and actuators, power conversion, transportation, storage and consumption
).
The research focus of leading companies in the industry now includes the integration of "intermittent" renewable energy into the grid through the world's leading power electronics technology, the development of new battery energy storage devices that meet grid requirements, and fast charging technologies for electric vehicles
.

Many advanced technology combinations can significantly improve the stability and intelligence of the power system, such as: the wide-area monitoring system can continuously monitor large key system parameters to avoid dangerous instability; Supervisory control and data acquisition systems can analyze grid conditions in real time and provide data to quickly adjust the flow of energy in the grid; The flexible AC transmission system includes three technical branches, namely series compensation, dynamic parallel compensation and dynamic energy storage, which can stabilize the energy flow and keep the fluctuation at a controllable level; HVDC technology can not only effectively stabilize large power grids, but also connect power grids with different frequencies; Automated substations react instantly to faults and quickly return to a steady state
.

Intelligent battery storage systems can help balance power in the grid, including what was once the world's largest battery system, which can provide 26 megawatts of power for up to 15 minutes
.
In particular, as an integral part of smart grid construction, AC/DC electric vehicle charging technology can ensure the stable operation of the power grid while supporting the wide application of electric vehicles, among which, the "DC fast charging device" can quickly charge electric vehicles with power up to 100 kilowatts, and it only takes less than 10 minutes of charging time to ensure that the vehicle has a range of more than
100 kilometers.
In addition, the introduction of smart metering technology is also a major innovation, in the future home, smart meters will be combined with a display to visualize energy consumption, help consumers optimize energy use, and see the effect of
energy-saving measures.

Relevant experts believe that in the future power grid, the relationship between power generation and electricity consumption is no longer a one-way relationship, but a robust two-way interaction with the help of advanced technologies such as energy monitoring and storage to ensure that the power grid facilities are more in line with ecological requirements and more economical
.

At the same time, based on the reality that China's primary energy is mainly coal, the development of supercritical and ultra-supercritical power generation technologies is also the trend of
China's thermal power generation.
Large-capacity, high-parameter thermal power generator sets help improve the efficiency of thermal power generation and reduce emissions, and a full range of advanced power generation control technologies can make a positive contribution
to this.

The "Energy Saving Assessment Management System" comprehensively covers the most advanced optimization technology tools and helps users establish an environment
for managing energy saving parameters.
Whether it is thermal power, hydropower, or energy regeneration, power generation enterprises with various complex generator sets can be helped by the operating environment provided by the energy-saving assessment system, and finally make the power plant run at the most economical level
.
At the same time, through the tools provided by the system, users can understand the trajectory of process operation at any time, understand the process of performance improvement, find the optimization space, and formulate a more advanced energy-saving operation plan
.

At present, individual leading enterprises in the industry also provide a complete set of "real-time information management system" (PGIM) for power generation enterprises, which is based on the latest technology of "real-time database management", through seamless connection with DCS, PLC, instrumentation and other monitoring systems, can carry out flexible collection and extraction of data of various scales, and form a data warehouse
that can be obtained in real time.
Including "performance calculation, process monitoring, consumption analysis, load distribution, combustion optimization, sootblowing optimization, equipment fault diagnosis, equipment life management" and other comprehensive applications, can assist power plants to achieve "cost and profit-oriented" decision-making management
.