Roofs around the world can be broadly divided into domestic glazed tile roofs, concrete flat roofs and mental roofs. For the installation of rooftop solar power plants, "waterproofing" has to be considered a very important factor! The general principle of roof waterproofing is that it is better to guide than to block, i.e. in case of heavy rainfall, ensure that the nodes can be treated smoothly so that the water cascades off and the roof does not leak. Waterproofing of PV Mounting for Concrete Flat Roofs For new buildings with concrete flat roofs or villa concrete sloping roofs (covered with tiles), the bolts should usually be pre-built at the time of design and the roof waterproofed in accordance with conventional practice. For both types of existing buildings mentioned above, the roof structure should be identified first. When connecting the PV module base to the structural layer, the perimeter of the metal embed parts at the top of the base is the weak point for waterproofing. If not handled properly, rainwater can easily seep down into the structural layer from around the bolts of the buried parts, causing corrosion to the structural layer's reinforcing steel and creating a safety hazard. Waterproofing of PV Mounting Installation for Mental Roofs For mental roofs, the steel structure of the PV mounting system needs to penetrate the original waterproofing layer and the pressed steel sheets and be fixed to the main steel structure of the building. Then refer to the mental roof waterproofing practice for vapour barrier, insulation and waterproofing treatment. The focus of construction is on removing rust and corrosion, sealing, and applying a waterproofing coating to the substrate and periphery. For local leaks in mental roofs, a high quality neutral weather resistant sealant should be used to apply and seal them. For colour plates with severe localized corrosion, they need to be replaced before installing the PV modules. 1)For cases of colour steel plates with trapezoidal rib sections: The PV Mounting is usually connected to the colour steel plate from the side face or top side by means of self-tapping bolts. Self-tapping bolts must be supplied with matching weather-sealed waterproof gaskets. And after fixing the self-tapping bolts, the screws shall be coated with a high quality neutral weatherproof sealant. 2)For cases with cable sleeves through roof panels: Practices are available on existing national standard drawing sets. They can be used in design and construction to suit the actual project. 3)For cases with cables through roof panels: Waterproofing can be carried out using Dektite Cover. It is a roof waterproofing structure, often used in the presence of coloured pressed steel roofs, with good physical properties and chemical resistance to overcome problems such as leakage of rigid waterproofing materials. Waterproofing of the Roof Perforations Made by the Mounting Manufacturer For existing buildings with concrete flat roofs or villa conc...

In order to obtain maximum economic benefits for an ideal tracking photovoltaic power station, in addition to the technical breakthrough of panel direction, the Angle adjustment of photovoltaic support is also an important direction to increase energy efficiency. The photovoltaic panel can adjust the Angle to follow the sun, increase the direct light surface and effectively improve the power generation. The tracking photovoltaic bracket comes into being. The current photovoltaic market is mainly composed of three parts: structure, control and drive. The control system monitors the Angle of the module through the sensor and instructs the support to drive the photovoltaic module for tracking. Let's talk today One word tracking the core of photovoltaic support system operation - control system. #01  Tracking program Photovoltaic industry forefront tracking controller manufacturers have gradually begun to use AI autonomous learning algorithm and astronomical algorithm to optimize tracking Angle and improve power generation. In order to build an intelligent and efficient tracking photovoltaic power station, Kseng's tracking control program meets OTA remote firmware upgrade, and implanting AI autonomous learning algorithm and astronomical algorithm, comprehensively upgrading tracking hardware and software, effectively improving tracking accuracy and intelligently increasing power generation 10-25%. #02 Tracking mode Sensors in the tracking system are responsible for monitoring signals, not limited to light, wind, rain, snow and other sensors. It will monitor information over the wireless The communication is transmitted to the control box for program decision, and the tracking mode is switched intelligently. A tilt sensor is set in the KSeng tracking control box for angle determination, and the motor is driven to make the bracket conform to the target Angle. When the wind speed sensor senses the maximum wind speed, or even bad weather such as heavy rain and snow, the controller will drive the bracket into the protection angle, so as to protect the whole bracket and optimize the reliability and safety of the system. #03 Debugging tool The on-site installation, operation and maintenance of photovoltaic power stations usually use software to debug the on-site support system. Kseng has a variety of modes, such as the interactive interface on the device, mobile APP, upper computer, Web and debugging tools, to carry out power station operation and maintenance work, meet the one-to-one, one-to-many centralized management to achieve remote operation and maintenance of each tracking controller. Diversified operation and maintenance. The model can better serve the complex construction site environment and effectively improve the working efficiency of the power station. #04 SCADA Backstage First of all, Kseng provides convenient SCADA background operating system which can monitor different block areas, each subarray and each heel in real time, each tracker t...

Color steel plate is generally used in light steel structure buildings, such as standardized workshops, warehouses, etc., according to its specifications, it is generally divided into angular color steel plate, right Angle locking type color steel plate and trapezoidal color steel plate. The light steel structure uses very light color steel tiles as the roof, which is also very large span, suitable for large-scale laying of photovoltaic modules. The colored steel shingles are made of a thin layer of metal-clad foam, which cannot be fixed to the photovoltaic module's support by traditional methods. Special "clamps" are required, the use of which will not damage the original structure, nor cause roof leakage or damage to the overall structure. According to different color steel tile type, can choose the corresponding clamps or support foundation. For angular and vertical locking type color steel tile, can directly use clamps as the basis of solar array, doesn’t affect its integrity, so these two forms of workshop roof is very suitable for roof distributed photovoltaic power station, and trapezoidal color steel tile roof because of the installation of solar array bracket will destroy the integrity of color steel tile, so there is a potential water leakage, Waterproof measures should be taken after installation in this way. The installation of photovoltaic modules on color steel tile are based on clamps, clamp is not heavy, therefore the requirements for roof bearing capacity are not high . Given the carrying capacity, if the PV modules are installed at the optimal Angle, multiple supports are necessary to increase the weight of the roof. In terms of safety, according to the optimal tilt Angle of the solar module array, the solar module array can’t be parallel to the roof, and extra wind pressure will be generated when the wind is strong which resulting in safety risks. To sum up, solar modules can only be tiled on the color steel tile roof, so the number of photovoltaic modules installed on the color steel tile roof is related to the area and bearing capacity of the roof.

In the early stage of photovoltaic development, PV brackets are mostly fixed structure, It's simple and low cost. With the removal of subsidies, the demand for power station profitability and efficiency is increasing, and the tracking bracket is becoming more and more important to the market. In the global photovoltaic market, the Middle East uses more than 80% of the tracking bracket, the United States about 80-90%, Europe about 60%.  Among them, the south of France and Spain have flat terrain and sufficient light resources, which is very suitable for tracking bracket. Compared to the fixed braket, the tracking bracket can increase power generation by more than 15％. The proportion of Central African and North African markets also exceeds 60%. At present, the ratio of PV tracking bracket and fixed bracket is close to 4:6 in global market, It's expected that by 2025, the ratio will be 5:5, or even more. But in China, the figure is less than 10 percent. In order to follow the development of the times,Kseng launched a new product line of solar tracking systems in early 2021. KST series includes: KST-1P One Portrait Horizontal Single-axis Tracker, KST-2P Double Portrait Horizontal Single-axis Tracker, KST-2PM Multi-drive--double Portrait Horizontal Single-axis Tracker. Compared with fixed bracket, tracking bracket has higher requirements in both software and hardware. Therefore, the following four points need to be made: 1.Smart AI algorithm Intelligent control system. The biggest difference between the tracking bracket and the fixed bracket is that the tracking bracket has a unique tracking control system, which not only protects the tracking bracket, but also tracks the sunlight according to its location. At the same time, self-learning optimization and adjustment tracking should be carried out according to different topography, installation error, weather and season, so as to ensure higher power generation. KST series uses "astronomical algorithm + closed-loop control" and "AI algorithm" to realize intelligent tracking, maximize the power generation of the PV power station. 2.Passed CCP wind tunnel test Structure stability. Compared with the fixed bracket, the frequency and damping ratio of the tracking system is lower, so the structural design has higher requirements for the stability. By cooperated with CPP Wind Engineering, Kseng combined with the frequency and damping ratio characteristics of the KS-tracker system, studied the results of resonance, flutter, gallop and torsional divergence of the system, analyze the influence on the system operation process and the instability characteristics. 3. Adapt to 210mm modules With the continuous updating of modules, as an important link in the PV industry chain, now the tracking system has fully entered the era of 210mm modules, with seamless support and collaboration, more mature industrial chain and more complete ecology. 4.Quick maintenance KST tracking system equipped with driving m...

Photovoltaic industry is a sunrise industry based on semiconductor technology and new energy demand, and the high ground of the future global advanced industry competition. PV mounting system is one of the critical component of photovoltaic power station. As the support system of solar modules, it is a reliable guarantee to maximize the utilization of photovoltaic energy. According to the different materials, mounting structures usually divided into: Ordinary steel structures and new aluminum alloy structures. The mounting structures exported by Kseng every year are mainly in aluminum alloy. The advantages of aluminum alloy solar mounting structure includes: ①.Anti natural corrosion: Aluminum placed in the air forms a dense protective layer of aluminum oxide on top, which prevents further oxidation. ②.Anti galvanic corrosion: When the steel bracket and solar panel in contact, aluminum panel frame is prone to galvanic corrosion, while the aluminum bracket avoids this phenomenon. ③.Keep voltage balance: The excellent electrical conductivity of aluminum, can better conduct the weak current generated by various reasons in the PV mounting system. ④.Easy forming: Aluminum products with different section shapes can be easily obtained by extrusion process with different dies. ⑤.Easy machining: Aluminum profiles can be easily sawed, drilled, punched and folded to the required specifications, and the energy consumption of the process is much lower than that of steel. ⑥.Low temperature resistant: Ordinary steel, especially the welding area, is fragile and brittle in low temperature, while the strength of aluminum alloy material increases.

For the “carbon peaking and carbon neutrality goals”, Kseng has formed a complete product line in PV mounting system after years of efforts , from fixed system, to fixed-adjustable system, and then to tracking system. So let's talk about the Kseng fixed-adjustable series. After years of updating and iterating, Kseng KSM fixed-adjustable mounting system upgrade to newest KSM-SA and KSM-MA fixed-adjustable system in 2021. Compared to the traditional fixed system, KSM series with more reasonable structure, better cost, higher adjustable precision and generating efficiency, wind resistance performance is more stable as well. The main structure of Kseng KSM series with large size section in the industry, increase system frequency and damping ratio, which effectively reduce the amplitude and deflection, and greatly improve the wind resistance. Adjustment mode can be selected as "stepless adjustment" and "step adjustment" according to customer's requirement. High adjustment precision, high operation and maintenance efficiency, easy for one-person adjustment. KSM fixed-adjustable system has strong terrain adaptability and flexible arrangement. The east and west can adapt to 20% slope, make full use of irregular land and improve land utilization rate. The north and south slope is unlimited, and various of component layout schemes can be adopted. KSM fixed-adjustable system adopts maintenance-free adjustable mechanism, select international first-class brand bearings, self-lubrication, UV resistance, service life of up to 25 years. Xiamen Kseng Metal Technology Co., Ltd. is a national high-tech enterprise, and quality PV mounting enterprise in domestic as well. At present, Kseng owns more than 100 patents, and its products have obtained many authoritative certifications of international standards. Our products are exported to more than 100 countries and regions at home and abroad, and the business scope covers the world. We will continue to innovate in product structure and system performance, provide high quality products and more professional service for our customers.