The National Standards Committee officially issued an announcement to approve the "Technical Regulations on the Integration of Wind Farms into Power Systems", which means that a new wind power grid-connected technical standard has been issued.
It is reported that this standard is prepared by the National Electric Power Supervision Standardization Technical Committee under the supervision of the State Electricity Regulatory Commission, and organized by the China Electric Power Research Institute, the General Electric Power Planning and Design Institute, and specifies the general technical requirements for the integration of wind farms with the energy industry standard “large-scale wind farmsâ€. The technical specifications for grid-connected design jointly stipulate the relevant technical requirements for the integration of wind farms.
Or bring a dawn to the wind power industry. The new wind power grid-connected new policy, which is called by the industry's “new national standardâ€, may bring a light to the wind power industry that is at a low level. It is reported that one of the reasons for the wind power industry falling into a “bottom valley†is manufacturing. The enterprise could not unify the grid access standards, and as a result, it caused many wind power off-grid accidents and caused security concerns.
The reporter learned from a fan manufacturing engineer at SANY Electric that this standard is mainly aimed at the low-voltage ride-through capability of wind turbines. The strength of this capability determines whether the “unstable†wind power can increase its proportion of access to the Internet. The power grid poses a threat.
According to the engineer, the so-called Low Voltage Ride Through (LVRT) means that the wind turbine can maintain grid connection even when the voltage at the grid connection point of the wind turbine falls, and even provide certain reactive power to the grid to support grid recovery until the grid recovers. This "passes through" this low voltage time. "This requires not only a strong low-voltage ride-through capability for wind power systems, but also the ability to easily provide reactive power support for the grid."
The reporter learned earlier that to carry out the transformation of the low-voltage ride-through capability of wind turbines will mainly involve the transformation of dynamic reactive power compensation, converters, controllers and other equipment. The relevant market analysts believe that this will bring a market for dynamic reactive power compensation. A certain chance.
Analysts of Xiangcai Securities believe that the dynamic reactive power compensation device is the core of the flexible transmission system. It can quickly and effectively adjust the reactive power of the power grid, suppress voltage fluctuations and flicker, and make the distribution of power flows throughout the power grid more reasonable, improving the power grid. With the increase in investment in UHV transmission lines by State Grid Corporation of China and South China Network Corporation, as well as the increase in demand for intermittent energy sources such as wind power and photovoltaics, the market for dynamic reactive power devices will have a promising future.
He also pointed out that according to calculations by Southern Power Grid experts, dynamic reactive power compensation devices ranged from 80 million to 90 million. In this way, only the high-voltage dynamic reactive power compensation devices in the south network coverage area had a market space of nearly 6 billion yuan.
The wind power grid-connected bottleneck will be gradually resolved. When interviewed by the reporter, Huarui Wind Power Company stated that with the introduction of the new national standard, the low-voltage ride-through upgrade of domestic wind turbines will be gradually completed. This will gradually solve the bottleneck of wind power integration. Problems such as grid connection are a challenge for the entire industry, but it is an opportunity for Sinovel Wind Power.
"The so-called upgrade, the main task is the adjustment of individual parts of the hardware module, and the control software control program and parameters to re-adjust the settings, that is, the relevant parameters of the low-voltage ride through the main control system, pitch system, converter Upgraded to make it consistent with the requirements of the parameters proposed by the State Grid.†Insiders told reporters.
However, other wind power companies and operators interviewed have always believed that even if there are uniform standards for wind power companies and wind farm operators, the standards should be strengthened in the power grid so that the wind power grid connection problem can be substantially resolved. .
“The Jiuquan 750-kilovolt grid and the State Grid’s “four horizontal and four vertical†long-distance power transmission channel have already been opened, which will fundamentally change the issue of solving wind power internet problems,†an industry source disclosed to the reporter.
It is reported that this standard is prepared by the National Electric Power Supervision Standardization Technical Committee under the supervision of the State Electricity Regulatory Commission, and organized by the China Electric Power Research Institute, the General Electric Power Planning and Design Institute, and specifies the general technical requirements for the integration of wind farms with the energy industry standard “large-scale wind farmsâ€. The technical specifications for grid-connected design jointly stipulate the relevant technical requirements for the integration of wind farms.
Or bring a dawn to the wind power industry. The new wind power grid-connected new policy, which is called by the industry's “new national standardâ€, may bring a light to the wind power industry that is at a low level. It is reported that one of the reasons for the wind power industry falling into a “bottom valley†is manufacturing. The enterprise could not unify the grid access standards, and as a result, it caused many wind power off-grid accidents and caused security concerns.
The reporter learned from a fan manufacturing engineer at SANY Electric that this standard is mainly aimed at the low-voltage ride-through capability of wind turbines. The strength of this capability determines whether the “unstable†wind power can increase its proportion of access to the Internet. The power grid poses a threat.
According to the engineer, the so-called Low Voltage Ride Through (LVRT) means that the wind turbine can maintain grid connection even when the voltage at the grid connection point of the wind turbine falls, and even provide certain reactive power to the grid to support grid recovery until the grid recovers. This "passes through" this low voltage time. "This requires not only a strong low-voltage ride-through capability for wind power systems, but also the ability to easily provide reactive power support for the grid."
The reporter learned earlier that to carry out the transformation of the low-voltage ride-through capability of wind turbines will mainly involve the transformation of dynamic reactive power compensation, converters, controllers and other equipment. The relevant market analysts believe that this will bring a market for dynamic reactive power compensation. A certain chance.
Analysts of Xiangcai Securities believe that the dynamic reactive power compensation device is the core of the flexible transmission system. It can quickly and effectively adjust the reactive power of the power grid, suppress voltage fluctuations and flicker, and make the distribution of power flows throughout the power grid more reasonable, improving the power grid. With the increase in investment in UHV transmission lines by State Grid Corporation of China and South China Network Corporation, as well as the increase in demand for intermittent energy sources such as wind power and photovoltaics, the market for dynamic reactive power devices will have a promising future.
He also pointed out that according to calculations by Southern Power Grid experts, dynamic reactive power compensation devices ranged from 80 million to 90 million. In this way, only the high-voltage dynamic reactive power compensation devices in the south network coverage area had a market space of nearly 6 billion yuan.
The wind power grid-connected bottleneck will be gradually resolved. When interviewed by the reporter, Huarui Wind Power Company stated that with the introduction of the new national standard, the low-voltage ride-through upgrade of domestic wind turbines will be gradually completed. This will gradually solve the bottleneck of wind power integration. Problems such as grid connection are a challenge for the entire industry, but it is an opportunity for Sinovel Wind Power.
"The so-called upgrade, the main task is the adjustment of individual parts of the hardware module, and the control software control program and parameters to re-adjust the settings, that is, the relevant parameters of the low-voltage ride through the main control system, pitch system, converter Upgraded to make it consistent with the requirements of the parameters proposed by the State Grid.†Insiders told reporters.
However, other wind power companies and operators interviewed have always believed that even if there are uniform standards for wind power companies and wind farm operators, the standards should be strengthened in the power grid so that the wind power grid connection problem can be substantially resolved. .
“The Jiuquan 750-kilovolt grid and the State Grid’s “four horizontal and four vertical†long-distance power transmission channel have already been opened, which will fundamentally change the issue of solving wind power internet problems,†an industry source disclosed to the reporter.
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