Although the photovoltaic policy has confused the industry, for the photovoltaic manufacturing industry, it is clear how to convert solar energy into electricity. Aiming at the many equipments of a photovoltaic power plant, today, the inverter, one of the core equipments, is an important bridge connecting components and the power grid, how to improve the efficiency of power generation.
In recent years, China's photovoltaic power generation has developed rapidly. Due to the shortage of land, many photovoltaic power plants are built on more complex terrains such as hills and mountains. When the components are blocked by shadows or have different orientations, series and parallel will occur. lost pair. Simply put, on these very complex terrains, traditional string inverters usually connect two or more strings to one MPPT (that is, "maximum power point tracking", which refers to the inverter's different environments according to the outside world. Temperature, light intensity and other characteristics to adjust the output power of the photovoltaic array, so that the photovoltaic array always outputs the maximum power), can not make all strings work at the maximum power point at the same time, it will cause a loss of power generation!
Zhou Hongwei, General Manager of the photovoltaic product line of TBEA Xi'an Electric Technology Co., Ltd. (hereinafter referred to as "TBEA") said: "According to the data of the third batch of photovoltaic leader bases, complex conditions (mountains, hills, ravines account for more than 50%, Even the maximum slope exceeds 45 degrees) has become the main application environment of the front runner base, resulting in inconsistent installation orientation, inconsistent installation angles, shadow occlusion, etc., will cause parallel mismatch losses between strings. "
At present, in order to increase power generation, photovoltaic double-sided power generation is now very common, and double-sided modules account for a large share of the third batch of photovoltaic leaders. The popularity of double-sided components also challenges traditional string inverters.
So, is there a solution that can completely solve the loss caused by the parallel mismatch between the strings? Matching the application of more powerful double-sided components? For this, the answer given by TBEA Zhou Hongwei is two models called TS80KTL_PLUS and TS75KTL_BF product.
According to reports, the biggest feature of TS80KTL_PLUS is 12-channel MPPT, each channel string is independently controlled; MPPT penetration rate is as high as 100%, completely solving the problem of string-parallel connection. Zhou Hongwei said: "TS80KTL_PLUS can be flexibly applied to complex distributed commercial rooftops, mountains, hills and other environments. In a mountainous power station in Yunnan, this model is more than 4% higher than the measured power generation of a market product port. The proportion of photovoltaic power generation loss, controllability, and improvement potential are all large. It is certain that the mismatch and shielding loss of double-sided power generation will be greater. Therefore, the inverter with 100% MPPT penetration can effectively solve this problem."
For the double-sided module system, the MPPT penetration rate of TS75KTL_BF is increased from 25% to 100% of the traditional string inverter, completely solving the power generation loss caused by the mismatch of photovoltaic string and parallel; at the same time, it can also be flexibly applied to large ground , Mountain, hills and complex distributed commercial rooftop environment; at the same time, as a new type of special inverter for double-sided components, TS75KTL_BF output overload capacity can reach 20%, perfectly matching the application of double-sided components in various complex environments.
In fact, not only in the photovoltaic leader, after the photovoltaic "5.31 New Deal", the parity Internet has once again been put on the agenda, and the demand for efficient equipment is also more urgent. As the core equipment of photovoltaics, the technological progress and practical application of inverters will greatly contribute to the high-quality development of photovoltaics.
Mirror EDM, mirror EDM is mainly used in the precision machining of complex mold cavity, especially the complex curved surface which is not convenient for polishing. It can save the manual polishing process, improve the performance of parts, and shorten the mold manufacturing cycle. Very important practical significance.
After the conductive fine powder enters the discharge gap, it is equivalent to inserting multiple small conductors between the two poles, and also distorts the electric field in the discharge gap, which reduces the resistance to breakdown of the insulating medium in the gap, and discharge easily occurs, and the discharge gap increases accordingly. . The increased discharge gap reduces the initiation effect of the electric corrosion products on the discharge, and is conducive to the flow and discharge of the electric corrosion products, thereby reducing the occurrence of concentrated discharge and making the discharge evenly distributed on the processing surface. The discharge gap increases and the discharge channel becomes thicker. Under the same discharge pulse energy, the heated area of the workpiece surface increases and the heated intensity decreases, thereby forming large and shallow discharge pits on the surface of the workpiece. At the same time, the increase of the discharge gap also reduces the discharge ability of the molten metal to the discharge, allowing more molten metal to re-solidify on the surface of the workpiece, further reducing the depth of the discharge pit. Therefore, powder-mixed EDM forms large and shallow discharge pits on the surface of the workpiece.
Powder mixed Electrical Discharge Machining forms large and shallow discharge pits on the surface of the workpiece and the uniform distribution of discharge pits is the fundamental reason for reducing the roughness of the processed surface
Electrical Discharge Machining
Edm Mold Parts,Sets Machining Part,Ultrasonic Roller Making,Electrical Discharge Machining
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