Ago, according to the National Energy Board, the State Grid Corporation of photovoltaic power plants and power generation requirements, low voltage ride through technology is considered to be grid-connected PV technology's biggest challenges, domestic and international project bidding PV inverters are put LVRT ability to enter the field of photovoltaic as an important threshold.

      Recently, Mingyang Longyuan MY solar photovoltaic inverter State Grid EPRI National Energy solar power research and development (experimental) Center successfully passed the low voltage ride through (LVRT) full-function tests, the test report shows Mingyang Longyuan MYsolar PV inverter with full compliance with State Grid "Photovoltaic power plant connected to the grid technology provides that" low voltage ride through capabilities PV power plant stringent requirements.

      This is Mingyang Longyuan MYsolar Following PV inverter series won the "Golden Sun", "TUV" certification is another important technological breakthrough, once again fully embodies Mingyang Longyuan as a high quality, professional photovoltaic overall solution providers have strong R & D strength of Mingyang Longyuan accelerate PV market development, to create the first high-end brands of domestic inverter http://www.gridtiepowerinverteronline.com/ has far-reaching significance.

 East China Power developed the production of "500KW PV Grid Inverter" passed up the only low voltage ride through technology certification bodies "State Grid Electric Power Research Institute, the National Energy solar power research and development (experimental) centers" in low-voltage ride through (LVRT) test.

According to the National Energy Board, the State Grid Corporation of photovoltaic power plants and power generation requirements and grid PV inverter must have low voltage ride through capabilities to ensure normal and stable operation of the grid, has LVRT capability for entering the PV field of a threshold.

Based on this, as a rising star of the domestic photovoltaic power generation, Weihai Huadong Power Co. 500KW off grid inverter independently developed a collection company more technical experts to form the low voltage ride through experimental research team initiated research the technical problems, and finally passed with the only low voltage ride through technical testing qualification Nanjing State Grid EPRI test trial, which was obtained by following the Eastern power "Golden Sun", "TUV" certification is another important "weights", fully embodies the East China power as a quality , a professional manufacturer of photovoltaic inverters strong technical strength, expanding its PV inverter market, domestic inverter creates a favorable impact on high-end brands.

East China Power photovoltaic industry stick to the "independent research and development, high-end alternative" road, after recent years to cultivate and incubation, has formed 10KW-500KW PV Grid Inverter, off grid inverter, combiner box, AC and DC power distribution cabinets, etc. complete product series, and other countries have been completed Wen Deng Nanhai Golden Sun Project photovoltaic demonstration project.

LVRT test is passed, marking the East China Power PV market more competitive, improve product quality and technical level to a new level, fully equipped to undertake different types of photovoltaic project conditions, and has entered the National Energy Board, State Grid Corporation of photovoltaic power plants and power generation threshold.

 East China Power developed the production of "500KW PV Grid Inverter" passed up the only low voltage ride through technology certification bodies "State Grid Electric Power Research Institute, the National Energy solar power research and development (experimental) centers" in low-voltage ride through (LVRT) test.

According to the National Energy Board, the State Grid Corporation of photovoltaic power plants and power generation requirements and grid PV inverter must have low voltage ride through capabilities to ensure normal and stable operation of the grid, has LVRT capability for entering the PV field of a threshold.

Based on this, as a rising star of the domestic photovoltaic power generation, Weihai Huadong Power Co. 500KW inverter independently developed a collection company more technical experts to form the low voltage ride through experimental research team initiated research the technical problems, and finally passed with the only low voltage ride through technical testing qualification Nanjing State Grid EPRI test trial, which was obtained by following the Eastern power "Golden Sun", "TUV" certification is another important "weights", fully embodies the East China power as a quality , a professional manufacturer of photovoltaic inverters strong technical strength, expanding its PV inverter market, domestic inverter creates a favorable impact on high-end brands.

East China Power photovoltaic industry stick to the "independent research and development, high-end alternative" road, after recent years to cultivate and incubation, has formed 10KW-500KW PV Grid Inverter, off grid modified sine wave inverter, combiner box, AC and DC power distribution cabinets, etc. complete product series, and other countries have been completed Wen Deng Nanhai Golden Sun Project photovoltaic demonstration project.

LVRT test is passed, marking the East China Power PV market more competitive, improve product quality and technical level to a new level, fully equipped to undertake different types of photovoltaic project conditions, and has entered the National Energy Board, State Grid Corporation of photovoltaic power plants and power generation threshold.

 Recently, Jiang Su Lvyang New Energy Technology Co., Ltd. self-developed 500KW and 250KW PV Grid Inverter passed the National Golden Sun certification. This is the second 10KW and 100KW PV inverter, the company made ​​the two products have the certification.

Golden Sun certification is currently the most authoritative certification of solar products, is a National Certification and Accreditation Administration Committee under the leadership of the National Development and Reform Commission, the World Bank, the Global Environment Facility "Establishing Chinese solar PV product certification systems" project with the support of the Chinese solar photovoltaic products certification authority.

Jiang Su Lvyang New Energy Technology Co., Ltd. as an emerging PV pure sine wave power inverter manufacturer, since its inception has been committed to the development of independent intellectual property products, one after another to obtain a large number of results, some products have passed TUV, CE, QC080000, AS4777 and many other certification and testing.

Companies with domestic and international well-known institutions to maintain long-term, good R & D partnership to set up a "solar, wind grid inverter Systems Research Center," and the identification of national science and technology sector, while the company and the Ministry of Education, photovoltaic systems engineering research establishment of a comprehensive research cooperation between the center and made the core technology in the field of solar dc to ac converter breakthrough.

As the "Golden Sun" certification is a PV inverter into the nation-building "Golden Sun Demonstration Project" a necessary condition to obtain certified Green Solar Energy is a recognition of the quality products, the company is bound to the development of photovoltaic industry into a strong driving force. Green Solar Energy will continue to insist on doing the most reliable inverter, is committed to the development of new energy sources.

 New Energy Co., Ltd., Guangdong Bao Wei not only provide customers with professional stent design for the total package provides turnkey photovoltaic power plant construction services, with professional knowledge and rich experience, Paul Wei inverter for supporting the selection of components and also can give constructive comments.

Since crystalline silicon cell module fill factor is high, the peak point of the inverter is easy to find, but amorphous silicon thin film battery pack is relatively low fill factor, IV curve is gentle, the inverter need to set the step voltage tracking MPPT to find the peak point.

Meanwhile amorphous silicon thin film batteries need negative ground, in order to discharge static electricity and prevent common mode voltage to ground exceeds the system voltage and the inhibition photovoltaic array panels on the distributed capacitance of the inverter control circuit common mode interference. So you must use an internal or external transformer isolation (including step-up transformer) for grid tie inverter, grounding lines need to add DC leakage protection device to protect the personal safety.

Negative ground is not grounding lightning protection components, but mainly to prevent static electricity, so you can use indirect grounding method, using a large value resistors indirectly grounded to avoid a direct cause and without grounding transformer-isolated inverter incompatibility problems . Since the grounding resistor through the actual current is very small, will not cause the inverter http://www.gridtiepowerinverteronline.com/ without transformer-isolated DC leakage alarm

Meanwhile earth circuit DC leakage protection settings can play a small role in protecting the safety of personnel. The only downside is indirectly grounded in the inhibition of cell panel distributed capacitance of the inverter reduces common mode interference aspect, and this problem can be reduced distributed capacitance (eg with no border component) and the inverter internal circuitry to improve noise immunity resolved, and now most of the inverter can be fit.