Solar Ground Module Mounting Structure

  Solar module mounting structure 

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  Xiamen Wanhos Solar Technology Co., Ltd. is a high-tech enterprise in solar PV field specializing in solar PV products with advanced technology and excellent service. Wanhos Solar members devote themselves to research, design, manufacture and sell the steady, trustable and cost-efficient solar PV mounting system solutions. As one of the largest PV solar products exporter in China, the pioneering products have been installed in more than 100 countries and regions since it established.

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Technical News:

Solar inverter vs. cyber attack

Currently, a US research team is developing new inverters that can protect solar installations from cyber attacks, and plans to establish new cyber security standards. Professor Alan Mantus, the research coordinator of the group, said that if the frequency converters are hacked, they may be shut down. This will not only cause grid instability, cause overcharging of batteries, etc., but may also cause some feeling Tricky other issues.

A team of researchers from the University of Arkansas is working on developing solar inverters that can protect photovoltaic power stations from cyber attacks.

"The frequency converter is one of the main connection equipment of the photovoltaic power plant. Therefore, if a hacker wants to gain control, the frequency converter will be their main goal. Because the frequency converter is accessible, and in order to maintain the stability and efficiency of the grid, We will also execute a lot of intelligent programs on the inverter, "research coordinator Alan Mantus told" Photovoltaic "magazine," they are the core of the entire photovoltaic system. "

In other words, they are the weakest link. "The frequency converter exchanges data with the central controller and other frequency converters in the solar photovoltaic power generation device. Considering the design of the power generation equipment, if the frequency converter is hacked, they can be shut down by hackers, causing overcharging and causing the grid to become unstable Wait, the attacker may even do some other sabotage that we did not consider. "Mantus continued.

The researchers also believe that network attacks on storage-type solar power plants may lead to the destruction of the storage system itself, which in turn may lead to fires. Mantus explained: "Just like shutting down any power supply, attackers shutting down or controlling solar photovoltaic power plants will also destroy some important functions of photovoltaic power plants."

safety standard

Inverters and solar devices connected to unencrypted communication networks are the most vulnerable. "Some solar photovoltaic installations have dedicated optical fibers, and they will never be connected to a public network, so they are more secure," Mantus said. "By comparison, other networked devices that do not use a dedicated network are more likely to be cracked."

He claims that power stations using series inverters are not necessarily more vulnerable than those using central inverters. "If the central frequency converter is fragile, such a power station will be more vulnerable to attack than a power station using 10 powerful series inverters. Hackers write code to continuously send network packet explorers to the system and try to find its Weaknesses, "he said," so hackers generally send network packet explorers to all frequency converters. "

However, Mantus said that certain products are definitely more risky than others. "Two competing inverter manufacturers generally produce products that are stronger than those produced by a single manufacturer across the board," he explained. "There is no standard established in this regard. Therefore, it is just a matter of expectation. It ’s not a derogatory word for the industry or solar inverter manufacturers. This is part of the reason why the Department of Energy ’s Office of Solar Technology invests in this research. They hope to reduce the cost while pushing the industry to make progress in this area. "

Invention project

Researchers are planning to develop next-generation inverters. At the same time, they are also considering the possibility of upgrading existing equipment because the cost of doing so is temptingly low. Mantus said: "However, considering the service life of solar inverters in this field, according to the service life of the inverters, a more likely solution is to upgrade some equipment by replacing some parts."

Mantus said that in the next ten years, we may begin to see a series of intelligent frequency converters that can be used to control and stabilize the power grid, with multiple modes such as grid connection, networking and tracking. "The frequency converter can be used as a complete device to provide the above-mentioned grid functions I listed," he concluded.

This week, a multi-level cybersecurity research project for photovoltaic systems won a $ 3.6 million prize from the US Department of Energy ’s Office of Solar Technology. Mantus is the executive director of the National Power Transmission and Security Center, which is the best power electronics testing institution among all universities in the United States.