Power system to the world advanced level

The reliability of power supply reflects the satisfaction of electricity demand in China's economy. It has already become one of the criteria to measure the degree of economic development of a country. The reliability of power supply can be measured by a series of annual indicators: power supply reliability, average power failure time, user Average number of blackouts ...........

The reliability of power supply reflects the satisfaction of electricity demand in China's economy. It has already become one of the criteria to measure the degree of economic development of a country. The reliability of power supply can be measured by a series of annual indicators: power supply reliability, average power failure time, user The average number of blackouts, the average number of user failures.

    China National Accreditation Committee for Conformity Assessment of the National Association of Experts, the State Grid Corporation of Key Laboratory - Power System Power Electronics Laboratory UHV DC converter valve test capacity of the expansion of the review. And that the power system power electronics laboratory into the ranks of the world's leading power electronics laboratory.

Members of the laboratory to listen to the operation of the quality system reporting and testing of the introduction of the laboratory management system was reviewed, access to the management system documents and management system operating records, on-site sampling of the DC converter valve insulation test.

Power system Power electronics laboratory has been fully equipped with special high-pressure DC converter valve type test capability, agreed to expand its application. At this point, the power system power electronics laboratory has been to undertake UHV DC converter valve and FACTS devices (SVC, TCSC, CSR, STATCOM has been approved) complete sets of type test business qualification, and will continue to contribute to China's power grid construction.

   Power System Power Electronics Laboratory is the company's key laboratory, by the China Electric Power Research Institute is responsible for operation and maintenance, mainly to carry out high-voltage series valve multi-physical field interaction and equivalent experimental mechanism research; flexible AC transmission and DC transmission valve Research on Operational Performance Research and Test Method of Power Electronic Converter and Its Related Standards.

Basic knowledge of power systems

     First, the composition of the power system

     A complete power system is made up of various types of power plants, boosters and substations, transmission lines and power users, which are used to complete the production of electricity, voltage conversion, power transmission and distribution and application The

     two. Power grid, power system and power system

    Power network: the transmission equipment, substation equipment and distribution equipment network.

    Power system: on the basis of the power grid with power generation equipment.

    Power systems: systems based on the power system, such as the power plants of power plants (such as boilers in turbines, turbines and hydroelectric power plants, turbines, and reactors for nuclear power plants).

     three. Characteristics of Power System Operation

    Large economy. At present, China's power industry, the scale of assets has more than 2 trillion, accounting for a quarter of the total state-owned assets, electricity production directly affects the healthy development of the national economy.

    At the same time, the energy can not be stored in large quantities, the unity of the various parts of the whole is indivisible, the transition process is very rapid, instantaneous production of electricity must be equal to the instant access to electricity, so the power of power generation, transmission, distribution to the user's every Links are very important.

    Centralized, power production is highly centralized, unified, no matter how many power plants, power supply companies, power grids must be unified scheduling, unified management standards, unified management approach; safety production, organizational discipline, professional ethics and so have strict requirements.

    Applicability, the power industry is the object of all-round, involving all the people of society, power quality, price level and the interests of the majority of power users are closely related.

    First, the development of national economy must first.

    Fourth, power supply

    Power is mainly produced by the generator, the current power generation in the world mainly thermal power, hydroelectric power and nuclear power. Other small capacity of wind energy, geothermal energy, solar energy, tides and so on.

   By power generation, thermal power generation is divided into coal-fired turbine power generation, fuel turbine power generation, gas-steam combined cycle power generation and internal combustion engine power generation.

   Thermal power plant is a thermal power plant, is the use of coal, oil, natural gas or other fuel chemical energy to produce electricity factory. The main components of the thermal power plant:

   (1), boilers and ancillary equipment to ensure that the chemical energy of fuels into heat.

   (2), steam turbines and ancillary equipment to ensure that thermal energy into mechanical energy.

   (3), generators and exciter to ensure that mechanical energy into electricity, then control and protection switch in the generator plays an important role

   (4), the main transformer, the power upgrade to high-voltage transmission to the transmission line.

    The current operation of the power system is not up to the best requirements, we should create more favorable conditions, through a planned technological transformation and gradually realized. Should be combined with the actual situation of regional development, according to the principle of further analysis and research work in order to obtain the best comprehensive technical and economic benefits.