Shop Best Vfd Inverter Single Phase in FGI
FGI SCIENCE AND TECHNOLOGY CO., LTD. plays an essential role in enlarging the popularity of vfd inverter single phase. We optimize the manufacturing of the product in the aspects of cost, speed, productivity, utilization, energy usage and quality to achieve the maximization of customer benefits. The product is so versatile, strong and high-performance that it has become an engine promoting a convenient and efficient life around the world.
FGI products are receiving wide praises from customers. To tell the truth, our finished products have greatly achieved the sales increase and contributed to the brand value added of our customers in the market. In addition, the market share of our products is expanding, showing a great market prospect. And there is an increasing number of clients choosing these products for boosting their business and facilitating enterprise development.
The exceptional experience can also turn a customer into a lifelong and loyal brand advocate. Therefore, at FGI, we always strive to improve our customer service. We have built an efficient distribution network, providing fast, convenient, and safe delivery of products such as vfd inverter single phase for customers. By constantly improving R&D strength, we can provide customers with more professional and effective customization service.
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1. Overview：
In order to save energy and reduce urban pollution, the waste heat of the steam turbine after the power generation of the thermal power plant is fully utilized to centrally heat the northern cities in winter. When the hot water sent from the power plant goes to the heat exchange station in the city, the temperature of the primary water supply is more than 90 degrees. After the heat ex-changer, the temperature of the primary backwater hot water drops to more than 60 degrees, and then flows back to the power plant. The hot water sent to the homes of urban residents, the secondary backwater temperature into the heat ex-changer of the heat exchange station is more than 50 degrees, and the secondary water supply temperature is more than 60 degrees. There are many such heat exchange stations in Baoji, Shaanxi province, among which one heat exchange station has four heat ex-changers, a circulating pump group composed of four 37kW pipeline pumps, and a 3.7kW supplementary water pump. The circulating pump and filling pump use manual opening and closing valves to control the flow, which increases the damping of the pipeline and causes power waste.
2.Implementation plans：
1. Frequency conversion speed control of supplementary water pump
In order to further save energy, the automatic transformation of the heat exchange station is implemented, the circulating pump and supplementary pump are adjusted by frequency conversion, and the whole city heating system is monitored by computer, realizing the unattended heat exchange station. Make the hot water run in the heating system through the circulating pump, and the leakage of pipes and valves causes the reduction of the water pressure of the circulating water. If the water is not replenished in time, the abnormal operation of the heating system will be caused. The water supply mode of the frequency conversion pump is relatively simple. The constant pressure water supply mode is adopted, and the set pressure is 4kg. In this example, FGI company's FD 100 inverter is selected, and frequency conversion speed regulation system is selected as shown in the figure:
2. Frequency control of circulating pump
The ultimate goal of the heating system is to keep the indoor temperature of the thermal user stable, but because the thermal user does not have a room temperature regulator, it is impossible to form a closed loop control for the room temperature of many thermal users. In order to achieve economic operation and ensure the quality of heating, the most effective method is to control the secondary water supply temperature of the heat exchange station. Under the steady state conditions, the heat supply of the system, the heat dissipation of the radiator and the heat consumption of the user under the steady state conditions can be obtained：
The Formula (1) is modified and considers that the indoor temperature, the ratio of the actual flow rate of the secondary pipe network to the design flow rate and the backwater temperature are approximately constant, then:
Where a, b and c are the relevant parameters of the meteorology in the area where the pipe network is located.
Formula (2) is the calculation method of the given value of the secondary water supply temperature. The t2g determined by formula (2) can track the change of outdoor temperature tw, so that the indoor temperature of thermal users is not affected by the change of tW, and realize stable heating.
If the outdoor temperature changes, to make the indoor temperature basically constant, a control strategy is to use the temperature difference of the secondary inlet and the backwater to control the circulation pump inverter speed, set the temperature difference between the secondary inlet and the backwater to 12 degrees Celsius. When the temperature difference between the secondary inlet and backwater is greater than 12 degrees Celsius, the circulating pump converter accelerates; when the temperature difference between the secondary inlet and backwater is less than 12 degrees Celsius, the circulating pump converter slows down.
In the figure, FD 100 frequency converter, BU-soft starter (self-coupling and decompression starter), the system adopts the cycle switching mode, the temperature difference signal into the PLC, after PLC treatment, to the frequency converter as the speed control signal. The operation information of the whole system is sent to the computer by the PLC.
3. Application advantage
After the frequency conversion speed regulation of the circulating pump, all valves have the opening is the largest and the resistance of the system is the smallest. When the average flow is 80% of the design flow, the power saving rate can be calculated according to the calculation formula in the implementation supervision guide of the mandatory national standard of three-phase asynchronous motor:
The power saving rate is 36%, which shows that the benefit of saving electricity is very considerable
China is one of the countries with in energy, energy saving and consumption reduction is our national policy. There are thousands of heat exchange stations in cities across the country. If all of them are energy-saving transformation, the electricity saved can not be underestimated. Moreover, the system operation is stable and reliable, to achieve the unattended, economic benefits and social benefits are obvious.
Recently, FGI Science And Technology Co., Ltd.was invited to participate in the International Coal and Energy Industry Expo held in Ordos. Leading enterprises in the energy industry gathered together and high-level coal scientific and technological achievements were displayed, attracting the attention and participation of many domestic and foreign enterprises.
A series of products independently developed by the company were displayed on the FGI booth, including comprehensive treatment device for long-distance power supply, explosion-proof inverter, explosion-proof SVG, energy storage emergency power supply, high-voltage dynamic reactive power compensation device, high-performance vector inverter, etc.These products are widely used in the field of coal mining, with the characteristics of advanced control technology, high efficiency and high reliability, attracting many customers and industry professionals to stop and exchange, new scenery staff and visiting customers and partners for in-depth exchanges and negotiations.They introduced the company's technical advantages, research and development capabilities and cooperation cases in detail, and conducted in-depth discussions with customers on potential cooperation opportunities.
At this exhibition, FGI energy storage emergency power supply has been the focus of the coal mining industry.
In a large number of subdivided application scenarios of new energy storage, with more than 30 years of power electronic technology accumulation and a deep understanding of the power supply load in the mining field, FGI has taken the lead in developing a high-voltage reserve energy emergency power supply system in China. First, it mainly solves the problem of ensuring the reliable and continuous operation of primary load or critical load in the case of power loss, which greatly guarantees production safety and personnel life safety.At the same time, the equipment can be charged in the night valley electricity price stage and discharged in the day peak electricity price stage to achieve peak and valley profit, greatly shorten the cost recovery cycle, and at the same time, it can also play the reactive power compensation role at any time to improve the power quality of the grid.The system uses BAMS, which integrates BMS and EMS, and reduces the system cost. Distinguish the anti-island protection and off-grid detection algorithm, accurately identify the state of the power supply system; The equipment operation can ensure the normal operation of the fan, lifting, drainage, conveying and other systems in the mine when the power is interrupted, avoid the accident risk and production halt caused by power failure, provide strong support for the mine accident emergency, and ensure the safety of operators and the continuity of production.
The application of FGI's energy storage emergency power supply system is mature, and its technology has reached the international leading level. It can quickly, stably, continuously and effectively ensure the power supply of key power loads in the case of coal mine power supply grid power failure, avoid personal safety and other accidents caused by coal mine power supply grid failure, and greatly improve the emergency power supply level and disaster resistance ability of coal mine. It has great popularization and application value in the whole country and remarkable economic and social benefits.
FGI will continue to be committed to change and innovation, keep up with market demand and technological development trends, through continuous technology research and development and product innovation, help the intelligent construction of coal industry, accelerate the realization of China's high-level coal science and technology self-reliance, build a strong energy security barrier, better protect the national energy security, and write a new chapter of green, low-carbon and high-quality development with scientific and technological innovation.
FGI is a listed enterprise under the Science and Technology Innovation Board of the world's top 500 Shandong Energy Group, and the State-owned Assets Supervision and Administration Commission of the State Council has created a world-class professional leading demonstration enterprise, a national specialized and special new "little giant" enterprise, and a national intellectual property demonstration enterprise. Provide "less electricity, good use of electricity, renewable electricity, storage electricity, explosion-proof electricity" five series of products, based on power electronics technology, integration of digital technology, thermal management technology, energy management technology, for clean energy, power, industrial and infrastructure fields to provide customers with full value chain, full life cycle solutions and services.
A series of products independently developed by the company were displayed on the FGI booth, including comprehensive treatment device for long-distance power supply, explosion-proof inverter, explosion-proof SVG, energy storage emergency power supply, high-voltage dynamic reactive power compensation device, high-performance vector inverter, etc.These products are widely used in the field of coal mining, with the characteristics of advanced control technology, high efficiency and high reliability, attracting many customers and industry professionals to stop and exchange, new scenery staff and visiting customers and partners for in-depth exchanges and negotiations.They introduced the company's technical advantages, research and development capabilities and cooperation cases in detail, and conducted in-depth discussions with customers on potential cooperation opportunities.
At this exhibition, FGI energy storage emergency power supply has been the focus of the coal mining industry.
In a large number of subdivided application scenarios of new energy storage, with more than 30 years of power electronic technology accumulation and a deep understanding of the power supply load in the mining field, FGI has taken the lead in developing a high-voltage reserve energy emergency power supply system in China. First, it mainly solves the problem of ensuring the reliable and continuous operation of primary load or critical load in the case of power loss, which greatly guarantees production safety and personnel life safety.At the same time, the equipment can be charged in the night valley electricity price stage and discharged in the day peak electricity price stage to achieve peak and valley profit, greatly shorten the cost recovery cycle, and at the same time, it can also play the reactive power compensation role at any time to improve the power quality of the grid.The system uses BAMS, which integrates BMS and EMS, and reduces the system cost. Distinguish the anti-island protection and off-grid detection algorithm, accurately identify the state of the power supply system; The equipment operation can ensure the normal operation of the fan, lifting, drainage, conveying and other systems in the mine when the power is interrupted, avoid the accident risk and production halt caused by power failure, provide strong support for the mine accident emergency, and ensure the safety of operators and the continuity of production.
The application of FGI's energy storage emergency power supply system is mature, and its technology has reached the international leading level. It can quickly, stably, continuously and effectively ensure the power supply of key power loads in the case of coal mine power supply grid power failure, avoid personal safety and other accidents caused by coal mine power supply grid failure, and greatly improve the emergency power supply level and disaster resistance ability of coal mine. It has great popularization and application value in the whole country and remarkable economic and social benefits.
FGI will continue to be committed to change and innovation, keep up with market demand and technological development trends, through continuous technology research and development and product innovation, help the intelligent construction of coal industry, accelerate the realization of China's high-level coal science and technology self-reliance, build a strong energy security barrier, better protect the national energy security, and write a new chapter of green, low-carbon and high-quality development with scientific and technological innovation.
FGI is a listed enterprise under the Science and Technology Innovation Board of the world's top 500 Shandong Energy Group, and the State-owned Assets Supervision and Administration Commission of the State Council has created a world-class professional leading demonstration enterprise, a national specialized and special new "little giant" enterprise, and a national intellectual property demonstration enterprise. Provide "less electricity, good use of electricity, renewable electricity, storage electricity, explosion-proof electricity" five series of products, based on power electronics technology, integration of digital technology, thermal management technology, energy management technology, for clean energy, power, industrial and infrastructure fields to provide customers with full value chain, full life cycle solutions and services.
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About Shop Best Vfd Inverter Single Phase in FGI
vfd inverter single phase of FGI SCIENCE AND TECHNOLOGY CO., LTD. sells well now. To guarantee the quality of the product from the source, the raw materials are supplied by our reliable partners and each of them is carefully-chosen for product quality assurance. Moreover, it is of unique style which keeps up with the times, thanks to the industrious effort of our designers. In addition to the features of combining fashion with the durability, stability and functionality, the product also enjoys long service life.
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FGI is a leading national high-tech state-owned enterprise, he biggest medium voltage drives and static var generators manufacturer in China.
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