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Home > > Wind turbine news > > Most wind turbines do not have low voltage ride through capability Most wind turbines do not have low voltage ride through capability
If not the fan off the net, "Low voltage ride through" The new concept is not often seen in the media. Now where on the wind, it seems that by talking about "low voltage ride through." "Low voltage ride through capability for wind farms as a special technical requirements." Interview with reporters, Wang Ning Bo, the "Since all conventional hydropower, thermal power units are able to automatically meet the requirements of low voltage ride through capability, it is generally not specifically emphasized. " It is this exposure is not high concept, a fan off the net thing it is the "culprit" has become a major wind farm in China, "weakness." State Electricity Regulatory Commission in the investigation of several fan off the net thing so after that, currently in operation most of the wind turbine does not have low voltage ride through capability, leading to system failure in the power grid voltage drops off when the network is easy. It is understood that, in 2009, the State Grid Corporation of China enacted the "technical requirements for wind turbine generator farms connected to the grid," and proposed wind turbine to have low voltage ride through capability. "Because of Jiuquan wind power base in the relevant investment has been completed in 2008, when the country has not the ability of low-voltage across the clear technical standards." Gansu Provincial Development and Reform Commission Energy Bureau introduced. By 2009 the fan does not have this ability is passable, but after 2009 it? During the interview, Gansu Guazhou Concord wind power company, in 2009 after delivery of the fan, the fan called for awarding contracts have this ability, commitment to the fan blower manufacturers have the technology. "Repeated incidents prove that the vast majority of the wind turbine does not have the low voltage ride through capability." Wang Ning Bo said. Some charge that the wind farm, from off the net thing it is to see, fan manufacturers not only deceive the wind farm, but also trick the grid. "Currently 70 percent of Jiuquan wind power base of the fan does not have low voltage ride through capability." Jiuquan Energy Secretary Wu introduced the students learn. Low voltage ride through capability, laymanĄŻs terms, that is, when the power grid failure or disturbance caused by wind farms and outlets of the voltage drop, the voltage drop in a certain range, the wind turbine can be run continuously and network, the ability to keep power running to reduce power fluctuations. According to power requirements, the small wind turbines should meet voltage drop to 20% of the amount of voltage to maintain 625 ms is not off-grid. Facts have proved that fans are not even hold this 625 milliseconds. Jiuquan wind power company that, although the Jiuquan wind power base in accident-prone, but once there the same incentive, it is difficult to ensure that similar incidents will not be repeated in other areas. Gansu Power Company that the country requires wind protection of the acquisition, if the fan is not installed technological transformation, it is definitely off the net thing will happen. Some off-grid wind turbine manufacturer that has nothing to do with the fans. Jiuquan new energy equipment manufacturing in the industrial park, one is involved in wind farms through the transformation of low-voltage technology, told reporters that even if the fans are equipped with low voltage ride through capability, but only about half a second of time, so the roots in the wind electric field. They also have the responsibility that power. "SERC is not only to the wind power equipment manufacturers Da Banzai, power responsibilities? 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