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Two Factors of Conversion Efficiency of Photovoltaic Inverters

2022-04-14

Green Earth

　　Author ：Green earth– LED Strip Lights manufacturers

Two major factors determine the conversion efficiency of photovoltaic inverters

What is the conversion efficiency of a photovoltaic inverter? In fact, the conversion rate of photovoltaic inverters refers to the efficiency of the inverter to convert the electrical conversion of the solar panel into electric power. In the photovoltaic power generation system, the inverter exerts DC electrical conversion of the solar panel to the flow of flow, conveys these AC power to the power grid of the power company. The inverter is highly conversion efficiency, which is available for self-employment and selling electricity. Increase.

There are two factors on the conversion efficiency of the photovoltaic inverter:

First, when the DC current is converted into the sine sine wave, it is necessary to utilize a circuit using the power semiconductor to switch the DC current, and the power semiconductor fever causes a loss, but by improving the design of the switching circuit, this loss can be made Decrease to minimize.

The second is to improve efficiency with the control experience of inverters. The output current and voltage of the solar panel changes with the sunshine and temperature, and the inverter can optimally control the current and voltage, so that the maximum amount of electric power is to find the best over time. The higher the power point, the higher the conversion efficiency. This control characteristics of the inverter will vary depending on the manufacturer's products, and its conversion efficiency is also different. For example, some inverters are highly conversion efficiency at maximum power output, but the conversion efficiency of low power output is very low; it is still a average conversion efficiency at the time from low power output to high power output. Therefore, when selecting the inverter, it is necessary to consider the matching property between the output characteristics of the solar panel.

Jiangsu Qianxia Lighting Co., Ltd. is originally Lingtang Shenju Electric Co., Ltd., located in the industrial concentration area of Yangzhou City, Yangzhou City, Jiangsu Province, has 46 employees, including 8 engineering and technical personnel, 6 market developers, factories It covers an area of more than 6,600 square meters, with a building area of 8600 square meters, with 800T large CNC bending machine, supporting high-speed vertical cutting machine, punch, lathe, planer, automatic cutting machine, submerged arc welder, drill, bending and other equipment Taiwan case, registered capital of 10.8 million yuan, through the national AAA certification, CCC certification, CQC certification, ISO9001 international quality system certification, is a qualified enterprise, quality trust, has a national city and road lighting project professional contracting three qualification certificates.

In the past few years, the company has always adhered to innovation as the pilot, with the tenet of quality and service, rapid rise in fierce market competition, and became the whole product, low price, good quality, excellent service, excellent service, excellent service, excellent service Production of LED street lights, high pole lights, road lights, high-end landscape lights, traffic safety facilities equipment, products are sold all over the country.

The company also has multiple sets of aluminum die casting molds, producing multi-style outdoor lighting, and the company has a number of patented products. Making a precision stainless steel pole, garden, lawn with lamps, plaza lighting with luxury lamps is important business scope of this company. In addition, the new high-power LED lamps in the company independently developed, and the solar power system is launching in the market.

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Two Factors of Conversion Efficiency of Photovoltaic Inverters 1

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About the Related Introduction of Ceiling Lights

　　Author ：Green earth– LED Strip Lights manufacturersThe lamp manufacturer produced with a lot of kinds, can bring us great convenience when using it, let's take a look at the related introduction of ceiling lights.First of all, it is characterized, there are many types commonly used in ceiling lamps, including square cover ceiling lights, pointed round ceiling lamps, etc., it can be directly installed on the ceiling, and it is easy to install, simple in style, very good in space lighting. Effect. I know its characteristics, the rest is the problem. The inside of the ceiling lamp generally has a ballast and loop tube, which can instantaneously start, and extend the life of the lamp and the power consumption is also low. The ceiling lamp has remote control and no remote control. It can be selected according to our needs.Introduction to the ceiling lamp, Xiaobian will introduce you to you, we can choose itself when using itself.

About [LED Tube] Meet Common Problems, LED Flood Lights, LED Industrial Mine Lamps, LED Tubes

　　Author ：Green earth– LED Strip Lights manufacturersAs far as the LED tube we have seen, there is a structural, internal wiring, anti-electric shock protection, insulation resistance, and electrical strength, creepage distance and electrical gap, heat resistance and refractory. Different LED tubes are different from the light source and materials that determine different price and safety, and the LED tube has a built-in power supply, and the agency different decisions is different.Century Ruiguang Company Engineering Department Li Manager's current technical security issues related to LED tubes, for the type II anti-electric shock type, requires LED tube input contact to reinforce insulation resistance and electrical strength, many built-in power transformers and LED module aluminum substrate Improper installation, causing the test to pass. Or many companies use non-separated power supplies in order to save costs and power efficiency. Internal wiring is mainly linear and insulating thickness, mechanical damage, and insulating layer. The inside is basically can't be in contact with the lamp shell of the aluminum, and the insulation is enhanced. It is also necessary to avoid internal wires and power supply directly to contact the outer casing and prevent the wire from being broken. In terms of structure, it is necessary to prevent insulation of the lamp head, screw, and contact metal surface, and the corresponding lamp head plastic should be used to prevent melting. Since the screws of the LED tube are directly locked, they are required to pay attention to the creepage distance and electrical interval. The internal power supply and the aluminum housing are needed to be separated from the insulating sleeve to reach the power level. The lamp holder and the lamp body are relatively insulated to prevent leakage of the shell.Article Source: LED tube

About [LED Tube] Industry Case, LED Industrial Mine Lamp, LED Tube, LED Spotlight

　　Author ：Green earth– LED Strip Lights manufacturersIn 2014, the LED lighting industry was not destined to be an ordinary year. Thunder X illuminated, followed by Wuhan, Hubei, after Hangzhou, Zhejiang, once again“replace”Guangdong Shenzhen operations middle candidates; Yigong and Wu Zhengzheng broke up and the goods were 120 billion to buy, the original agent will be in the question, leaving a lot of topics worthy of the illumination. BeTwenty years ago, Guangzhou, there is a group of fresh young people, we all have simple wishes, this wish is just a little bit better for the days. They stepped on classic“Phoenix”Double bar bike, the street alley is delivered by a hardware store. They grow in plain, change in growth, very fast,“After the Yangtze River”, A batch of storm-free pre-sealing, the state-owned bulb manufacturing plant falls, another batch“Unique”The private lighting company founded it, which also laid a lot of a lot of a lot of lines.Replacement brands frequently in the short term, the loss of the dealer cannot be estimated. Huizhou's potential brand West X original Nanjing agent, from the west x brand I can't promote the promotion fees, I have to light your career with him.“Puff”Break up, turn the flower light.In the transformation of China's economy, our employment is increasing, and the warehousing capital is increasing, and the delivery capital is increasing, and the manufacturer is looking for a variety of increases, and the quotation is getting more flat. Many dealers are carrying a micro profession. Selling, and even no profit sale, and even some are still being sold.Article Source: LED tube

Question @LED Street Light About LED Street Lights

　　Author ：Green earth– LED Strip Lights manufacturersDue to technical content, complicated components, some high-power lamps will be much more than ordinary sodium lamps, so it is more required for the corresponding support material. In order to reduce the self-weight of the LED street lamps as much as possible, our company selects lightweight raw materials as much as possible.Our company's LED street lights, new design, structure, full of modern breath, in line with the trend of the times. Some heat dissipation design, has a good quality assurance, worthy of trust!

Special Technical Requirements About LED Street Lamps @LED Street Lamp

　　Author ：Green earth– LED Strip Lights manufacturersThere are many indexes of the LED street lamp, the lamp energy, the protection level, the average life, the use of temperature, the use of heat sink temperature, immunity, light distribution characteristics, etc.When the ED street light is operating at a nominal rated power supply voltage and rated frequency, the difference in power and rated power should not be greater than 10%, and the power factor should not be less than 0.92, and the LED stream protection level A-level product should not Low than IP67; B-class products should not be lower than IP66; C-class products should not be IP65, the rated average life of the LED street light should not be less than 30000h, the rated temperature Tc value of the LED street light should not be greater than 58 C, the lights in the lamp The sink temperature should not be greater than 65 C. The voltage protection level of the surge suppression performance should not be less than 2kV and 4KV. When some LED bulbs in the luminaire are extinguished, the spot shape and the road surface illumination uniformity should not change significantly. .If you want to know more, you can call our company directly. Welcome everyone to consult! Professional production, worthy of trust!

Question About LED Street Lamp Cooling Mode

　　Author ：Green earth– LED Strip Lights manufacturersNow LED lighting technology is increasingly mature, but the LED street base is on the heat transfer or heat dissipation problem, what we can take is still limited, so today Xiaobian should talk about the problem of choice for LED street lamp heat dissipation mode, hoping Help everyone.At present, the heat dissipation of the LED street base is mainly divided into natural convection heat, adding fan forced heat dissipation, heat pipe and circuit heat pipe heat dissipation, and the installation fan forced heat dissipation mode is relatively complicated and the reliability is relatively low, and heat pipe and circuit heat pipe heat The cost of the way is compared, and because the LED street lamp is often used outdoors, the heat dissipation surface is located on the side and the body type is limited, and these factors are too friendly for other two ways, but However, it is necessary to play air naturally, the advantages of the flow of the heat dissipation, so the LED streetlights should choose natural convection heat when selecting a heat dissipation method.

How Much Do You Know About the LED Street Lamp? @Led Street Lamp

　　Author ：Green earth– LED Strip Lights manufacturersThe traditional LED street lamp design is paying attention to the number of LEDs, and it is not much for its heat dissipation effect, in fact, it is not right. In life, with the increase in the number of LEDs, the heat dissipation design is also required, and the traditional heat transfer means is conducted, convection, Radiation and phase change heat, so we have to solve problems on the issue.LED street lamp heat dissipation technology uses a heat-insulating board mode, because the copper plate is relatively thick, so it is not very convenient to use, and there is still a risk of dangerousness, if you encounter a typhoon, or the earthquake may be an uneasy factor, so now It is a needle heat dissipation technology.Such a technique makes the heat dissipation, so that the LED junction is lower than the ordinary heat sink at least 15 C, and has good waterproof performance, there is basically no uneasiness due to weight, so Xiao Bian also likes this. The lamp is easy to install.The heat dissipation method of the lamp holder can be divided into a variety of forms, heat pipes, circuit heat pipe heat dissipation, installed fan forced heat dissipation, natural convection heat, etc. Low, so smallIt is recommended to use natural convective heat to reduce, safe and low cost.

Selection of Internal Components Within LED Street Lamps

　　Author ：Green earth– LED Strip Lights manufacturersAt present, there are two kinds of LED street lights in the market: integrated lamps and traditional street lamps.LED street lamp manufacturers are mainly composed of high-power LED particles, aluminum-based PCB, radiator, drive power, housing, and lens (optional).High-power LED: mainly selective light flux (80 to 100 LM), light decay, color temperature 5000-7000K.Aluminum substrate: highly thermally conductive aluminum alloy, mainly aluminum purity, excellent copper materialRadiator: High heat transfer, there is a special heat dissipation method in the market, such as heat pipe heat dissipation, liquid cooling, electric fan heat, etc.Drive power supply: high efficiency (more than 90%), current output is stable, small ripple, optimal energy over EMC.Shell: The demand is to facilitate light source heat, as for the appearance, due to market demand.Leisure: high light transmittance (90%), anti-UV, rectangular spot, etc.Jiangsu Qi Zhao Lighting Co., Ltd. is a professional manufacturer, lithium battery solar street light, high pole light, lithium battery solar street light, garden light, landscape light, wait, etc. New and old customers come to consult.

Installation of LED Flood Lights Using @led Flood Light

　　Author ：Green earth– LED Strip Lights manufacturersWhen the LED floodlight is installed, pay attention to tighten the hanging ring, the ring is M20 thread. Put the hanging ring into the hook and place it smoothly. When installing the lamp, the wiring is closed and the wiring is closed to prevent leakage. When an external power cord, there is a need to take the corresponding waterproof and water leakage measures. The luminaire cannot violate fire regulations when used. Installation, find professional electricians, 0.75mm2 three-core cable wiring mode is the red line for the fire line, the blue line is zero line, and the yellow green line is ground.Precautions for installing are the above points, pay attention to the product using operating voltages during use, please do not run the operating voltage range. Because the lamp has glass accessories, please pay attention to lightly, do not override. The products produced by Paris have good warranty, after-sales service. Under normal use conditions, quality assurance is based on the correct preservation, installation, use and maintenance of the product; due to improper installation, the product is damaged, which is damaged, not within the scope of this guarantee; Quality issues, the company is solved in the warranty period.

Eight-meter Solar LED Stream Pole Strength Calculation

　　Author ：Green earth– LED Strip Lights manufacturersEight-meter solar LED stream pole strength calculationThe following explanation is determined according to GB50135-2006 "Tower Structural Design Specification". Known Conditions are calculated in maximum wind speed V = 36m / s, 12 typhoon. Solar LED Street Light Bar Material Q235 Wait Stress [σ] = 225000kn / m2.Solar LED street lamp lever shape size 8m, light pole height h = 8m, wall thicknessδ5, upper mouth diameter D = 60, lower mouth diameter D = 165 . The upper part of the light pole is in the upper arm length size is l = 1.3M lamp bottom plate flange 420 ×420 .Solar LED street lamp foundation size, foundation profile 0.6m×0.6m, buried depth 1.5m, ground bolt hole distance 320 ×320 , the bolt diameter M24 is four.Solar LED street light pole strength calculation: standard wind pressure calculation, basic wind pressure is W0 = 0.8kN / m2 by wind speed 36m / s, the standard wind pressure W = W0·KT = 0.8×1.1 = 0.88kn / m2. The wind pressure adjustment coefficient KT takes 1.1.The wind calculation of the solar LED street lamp holder stroke light headμS, conical rod body 8.7 wind pressure high speed change coefficientμZ, take 0.9, the light pole is in the wind area S rod = 1.06m2, the street lamp is in the wind area S light = 0.3m2, the light rod is affected by the wind F rod = W·μYes·μexist·S rod = 0.588KN, the lamp head is affected by wind F light = W·μYes·μexist·S light = 0.166knThe total bending moment of the solar LED street lamp lever is calculated, the light pole bending moment M rod = f·H / 2 = 1.176KN·m, the lamp head to the bending moment of the pole, M light = F light·H = 1.328KN·M total bending moment,σM = M rod M lamp = 2.504 kN·NoSolar LED street light pole bending modulus calculation. WZ =πD 4—D4 / d = 3.14×(0.1654-0.1554) / 32/0.165=0.0000976m3.Calculation of solar LED street light pole bending stress. Bending stressσσ=σM / W0 = 25661.8kn / m2σσAs seen from the above calculations, the strength of the solar LED street light pole is sufficient. The geodial bolt intensity check, the wind direction is the diagonal, the tension of the terrain bolt is the maximum N =σM×Y /σY²= 2.504×0.327 / 0.327²2×0.1²= 6045KN, safety factor k take 2.5 floor bolts M24 effective cross-sectional area, s = 314 ², Q235 steel yield limit,σS = 235n / ², Licensed pull N =σYes×S / K = 235×314 / 2.5 = 295KN> n = 645KN, and the ternary bolts are more than four M24.YWX [Excellent Promotion Screen 18013196696]

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