In 2006, the European Council's Green Paper on Energy emphasized that smart grid technology is the key technology and development direction to ensure the power quality of the EU power grid. Smart grid should refer to the automation technology in the process of transmission and distribution at this time.
In mid-2006, a company named "Grid Point" recently began to sell an electronic product, which can be used to monitor the electricity consumption of household circuits and adjust the electricity consumption of household appliances through Internet communication technology. This electronic product has some interactive functions and can be regarded as the infrastructure in smart grid.
In 2006, IBM Company of the United States cooperated with global power research institutions and power enterprises to develop a "smart grid" solution. This scheme is compared to the "central nervous system" of power system. Power companies can automatically monitor the power grid by using sensors, meters, digital control and analysis tools, optimize the performance of the power grid, prevent power outages, and restore power supply more quickly. Consumers' electricity management can also be refined to each networked device. This can be regarded as the most complete solution of smart grid, marking the formal birth of the concept of smart grid.
On June 5438+ 10, 2007, East China Power Grid officially launched the smart grid feasibility study project, and planned the "three-step" strategy for 2008-2030, that is, the advanced power grid dispatching center will be initially built in 20 10, the digital power grid with preliminary intelligent characteristics will be fully built in 2020, and the smart grid with self-healing ability will be truly built in 2030. The launch of this project marks the beginning of China's entry into the smart grid field.
In 2008, Boulder, Colorado has become the first smart grid city in the United States. Smart meters are installed in every household, so people can intuitively understand the electricity price at that time, so that some things, such as washing clothes and ironing clothes, can be arranged at low electricity prices. Electricity meters can also help people to give priority to clean energy such as wind and solar energy. At the same time, the substation can collect the electricity consumption of each household. Once there is a problem, you can re-equip the power supply.
In September 2008, Google and General Electric jointly issued a statement announcing that they are jointly developing clean energy business, the core of which is to build a national smart grid for the United States.
65438+2009125 October, the latest report on the scale of recovery plan released by the White House announced that 3,000 miles of transmission lines will be laid or updated, and smart meters will be installed for 40 million American households-the United States will promote the overall revolution of interactive power grid. On February 2nd, Wu Jiandong, an energy expert, clearly pointed out in the article "Promoting the Interactive Power Grid Revolution in an All-round Way and Promoting Economic Innovation and Transformation" that China Power Grid urgently needs to implement the revolutionary transformation of "Interactive Power Grid".
On February 4, 2009, Malta, a Mediterranean island country, announced on Wednesday that it had reached an agreement with IBM, and both sides agreed to build an "intelligent public system" to digitize the country's power grid and water supply system. IBM and its partners will replace 20,000 ordinary meters in Malta with interactive meters, so that power plants in Malta can monitor electricity consumption in real time and set different electricity prices to reward users who save electricity. The value of this project is as high as 9.65438+0 million dollars (70 million euros), including the establishment of sensor networks in the power grid. This sensor network, together with transmission lines, power stations and other infrastructure, provides relevant data, enabling power stations to distribute electricity more effectively and detect potential problems. IBM will provide software to collect and analyze data to help power plants find opportunities to reduce the cost and emissions of carbon-intensive power plants in the country.
On February 10, 2009, Google said that it had started to test the power consumption monitoring software called Google ﹙PowerMeter﹚. This is a beta version of the online dashboard, which represents that Google is becoming a public infrastructure in the information age.
On February 28th, 2009, as a part of the smart grid construction of North China Company, the trinity security defense and whole-process power generation control system of North China Power Grid passed the acceptance of the expert group in Beijing. This system highly integrates the previously dispersed energy management system, power grid wide-area dynamic monitoring system and online stability analysis and early warning system for the first time, and the dispatcher can realize panoramic monitoring of power grid comprehensive operation and obtain auxiliary decision support without frequently switching between different systems and platforms. In addition, the system can effectively improve the standardization and process level of grid-connected power plant management by building a platform for management assessment and auxiliary service market quality analysis.
On March 3, 2009, Google issued a statement to the US Congress, demanding that non-monopoly standards be adopted when building a "smart grid".
20 10 65438+ 10/0/2. State Grid Corporation formulated the Opinions on Accelerating the Construction of Strong Smart Grid, which clarified the basic principles and overall objectives of building a strong smart grid.
On 20 11March1day, the 750 kV Yan 'an Luochuan Smart Substation of State Grid was successfully put into operation, which is the smart substation with the highest voltage level in the world.