Zero ( Low) Voltage across function: when the accident or disturbance in power system, pv power station and node voltage sag, voltage within a certain range of the voltage drop and the time interval, photovoltaic plants are able to run continuously to ensure not to take off the net, and this function is implemented by the inverter. The cause of voltage sag is a branch in power system short circuit fault, the current increases sharply, then the fault branch of the protective device, the point of failure isolation, and voltage is back to normal again, from the failure to detect and disconnect, over a period of time, will lead to the branch voltage plummeted, formed the transient voltage drop. This time if solar power if immediately resection, will affect the stability of the power grid, and even other branch is cut off of the trouble-free can cause large area power grid blackouts. At this moment need pv inverter can support for a period of time ( 1 s) Until the grid voltage return to normal.
solar photovoltaic net news: according to foreign media reports, the French government last week announced a 10-year energy draft plan. According to the draft, in the next 10 years the French renewable energy installed will more than double, to 2028 total could reach 113 gigawatts (gw), and new power mainly from wind and solar.
by the end of 2017, the French renewable energy installed only 48. 6GW。 Specifically, according to the new draft, by 2023, the French renewable energy capacity is expected to reach 74 gigawatts (gw), to reach 102-2028 113 gw, growth potential.
as of September 2018, the French pv cumulative installed for 8. 8GW。 According to the new draft, predicts 2023, pv capacity will reach 20. 6 gw, reached 35 to 2028. 6 - 44. About 5 gw.
after French President marolon once said in November 2018, the French will make use of renewable energy expenditure from 5 billion euros a year to $70 a year - at the moment 8 billion euros.
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on January 28th in the morning, the National Energy Administration, at a news conference in Beijing issued 2018 renewable energy grid operation. New energy and renewable energy division, deputy director of the chuang-jun li overall train of thought on the development of photovoltaic power generation in 2019 questions from the journalists. Reporter: we have noticed that in 2018 the national photovoltaic new power scale hit a record high 2, 2019, the overall idea of the construction of photovoltaic power generation is what? Chuang-jun li: after a few years