Sun power for PV projects in Shanxi agreement

Sunshine Power November 7 evening announcement said the company on the same day and Yangquan Yuxian Yuxian County People's Government to invest in the construction of urban and rural cattle town after another 100MW photovoltaic plant production project signed a project contract .

Under the agreement, sun power within a month after the signing of the project agreement , should be entrusted to immediately have the ability and qualifications of the design units of 50MW photovoltaic http://www.gridtiepowerinverteronline.com/ power plant project area a preliminary survey and design work , declare the project as soon as possible to the national, provincial development and reform department filing and other procedures , in a project with the construction of 50MW within three months after the start condition , and completed within two years after signing the contract and power generation ; All 100MW PV power plant projects are completed within three years, and the grid.

The company said in Yuxian development and construction of photovoltaic power plants , the company developing the nextgeneration of PV inverter products , and carry out the depth of photovoltaic research network technology to provide more technical accumulation, but also improve the company's chain. Also announced that the construction of this project contract signed only remain in the level of strategic cooperation , before the company is not a formal agreement , will not have a significant impact on the company's normal production and operation and performance , it will not affect the company 's operational independence .

Multiple protection measures inverter

Photovoltaic power generation system includes components , brackets, combiner boxes , distribution cabinets , inverters , cables and other accessories, which can only inverter has brains "CPU", with active detection and prevention capabilities , when the grid fails or component failure inverter current sensor and voltage sampled by the brain "CPU" to make judgments , indicating that "executing agency" contactor or breaker opens to protect the personal safety of the grid , the equipment.

Inside the inverter AC contactor, DC circuit breakers , AC circuit breaker installed in different areas , functions are not the same , AC contactor bear boot routine shutdown action, generally first power down, AC contactor before action. DC circuit breaker main role is to disconnect between the modules and inverters , when the component or DC cables short circuit, grounding ; inverter bus capacitors , IGBT short circuit occurs , it must be removed from the DC switch.

From a security perspective , the inverterinput DC switch and AC switches are used in molded case circuit breakers , circuit breakers with automatic over-current and short circuit protection, short-circuit fault occurs in the inverter , the solar cells enable timely positive and negative separately , cut off the power grid and inverters contact .

Now some of the inverter in order to reduce costs , using a load switch plus fuse breaker alternative way , to the grid and solar components brought great risks.

Because the short circuit of solar modules is about 1.06 times the rated current , but at least the current fuse is blown more than 1.2 times the rated current , so when a short circuit fault dc ac converter , DC fuse would not have blown, solar modules short circuit . If not promptly treated, fire may occur.

50KW to 630KW crystal Fuyuan company plants inverter , input and output are used with a shunt release high-quality molded case circuit breakers, power plant safety is your patron saint .

The global market for micro-inverter with the growth in demand in overseas markets

Latest research report shows that from 2013 to 2017 , the global market size of micro- inverter is expected to continue to grow as the demand and growth in overseas markets, more than four times . Before the report came out , there are many who see the PV industry great potential for development of micro inverters , Ohm Nick Zhao Lei , general manager of New Energy Co., Ltd. is one of them .

It is reported that in January 2009 , Zhao Lei and investors returned from Germany, was founded along the Suzhou Esso , later , investors want to get involved in the field of large-scale inverters , Zhao Lei , however, want adhere to the development of small and medium systems , and ultimately on the idea because of the differences and parted ways . In 2011, Zhao Lei leave Esso , Nick founded ohms . Currently, Nick ohmmicro-inverter in the international PV market fast, and has won a number of national patent certification, which also verified Zhao Lei on the choice of development path prescient. November 1, 2013 , held a new conference ohm Nick in China ( Nanjing ) International distributed energy and new urbanization forum , launched its new heavy - micro-inverters .

"With the advances in photovoltaic technology , photovoltaic power generation costs will continue to approach the cost of desulfurization coal price is expected to 2016 , China's photovoltaic power generation cost will be close to the desulfurization of coal price , then China's photovoltaic industry will usher in the explosive growth in the future for distributed PV on grid inverter will account for future market share of around 70 percent . " new Energy Co., Ltd. , general manager Zhao Lei ohm Nick told reporters .

Simple, reliable , low cost, which is developing strategies to Ohm Nick Zhao Lei developed . "The future must spell costs under the premise of quality assurance ." Zhao said , "Now that missed the blue ocean , then we will consider how to survive and profit in the Red Sea ." To achieve this goal, Ohm Nick has been the innovation as the main event.

It is reported that Nick ohm each inverter is equipped with a built-in WIFI card through a wireless router to send the health of the inverter to a remote server, while also supporting peer to peer communications, the inverse can be directly in the LAN transformer monitoring , GPRS built-in card with mobile network automatically transmitted signal can be realized on a remote server without a network in real time and efficient monitoring of regional power stations , more ohm Nick from major hair GPRSKIT, WIFIKIT to provide users with convenient wireless monitoring function through ohm Nick highly reliable inverter control device PMB enables remote management of the inverter active / reactive power regulation .

Compared to other brands of inverters , Ohm Nick product can only be regarded as quite satisfactory in appearance , but in the selection of components is very cautious, 95% of the inverter 's components are imported brands, this has to a certain extent, increased the difficulty of reducing costs . Since its establishment ohm Nick , Zhao Lei continues to lead the technical team to optimize the design , increasing value-added products while seeking to maximize the reduction of costs.

According to reports, Nick ohm micro inverters than traditional photovoltaic inverter has a high power output , high reliability, and other fine intelligence, installation and security advantages , and relying on the company's strong after-sales service system to provide users with 24 hours worry-free service . Such products are very suitable for the user's home station , in the protection of resources and the environment, conserve electricity user input, generate additional earnings power , real-time monitoring of the inverter , high security and other aspects have a strong advantage.

Inverter simulation modeling and protection technology "seminar

Shaanxi Changling Photovoltaic Electric Co. should be invited , Professor of Electrical Engineering, Xi'an Jiaotong University School of Pei Yunqing on November 2, 2013 - the 3rd came to my company to do special technical seminars. Deputy General Manager Li Jisheng , more than 30 R & D departments attended the training .

Professor Pei Yunqing is Xi'an Jiaotong University School of Electrical Engineering Master Instructor , Changling PV is a member of the company's expert advisory , research direction for high-power electronic converters and control technology, he has a solid theoretical foundation and rich experience in engineering practice , 2011 has worked with the company to develop a NB500k Changling PV grid-connected inverter .

Professor Pei The main lecture on " Modeling and Simulation grid inverter " and " inverter protection design ," etc., close photovoltaic company in 2013 to meet the new R & D projects.

Professor Pei on the teaching very seriously, busy detailed preparation, prepare a full teaching slides . During the lectures, Professor Pei from " Modeling and Control of power electronic devices ", " various aspects of the system transfer function ", " voltage-mode and current-mode control technology " to " power electronics protection " for a detailed layman thorough explanation, lecture flexible way by all the praise . R & D staff with daily work issues to listen carefully during school hours lecture notes, ask questions in the interactive sessions enthusiastically , Professor Pei answers, answer freely, seriously and warm atmosphere .

Through this training, R & D personnel in their daily work encountered many questions have been answered well , the PV wind turbine inverter design has a more comprehensive and in-depth understanding , which would later design work related Expand a positive impact .

Section Hengsheng successful bid Shunde Golden Sun PV Inverter Supply Project

It is reported that, after a long-term project tracking, multiple rounds of project communication and quote the case recently, Xiamen Kehua Hengsheng Co., Ltd. (hereinafter referred to as "Section Hengsheng") With reliable product quality, the more excellent performance and service network agility comprehensive advantages, the successful bidder Shunde "Golden Sun" demonstration project 10MW PV inverter supply, for a total project square tailored SPI500K-A high-power solar inverters and 19 sets of ancillary components. This project was approved by the National Development and Reform Commission in 2012 of the second installment of "Golden Sun" PV demonstration projects, construction funds as part of the national subsidy policy, the rest are its own funds.

The project bid, the market for Section Hengsheng product reputation, quality of trust again, fully embodies the Section Hengsheng of "leading technology, superior quality, user trust," the quality policy.

Section Hengsheng With 25 years of experience in development and application of a strong power, abundant power solutions (high-power solutions, new energy power solutions, data center solutions), strong R & D capabilities and supply chain management capabilities (in Xiamen Zhangzhou, Foshan, Shenzhen has multiple research base and manufacturing base) and 54 direct service across the country agile service outlets, UPS became the first domestic brand, and frequently achievements in new energy sources.

In the new energy field, Section Hengsheng was the first to participate in the development of new energy markets, and to focus on their own core technology to promote national high-tech enterprises in the new energy industry, developed and launched a photovoltaic power, wind power and wind and solar power and other kind of new energy solutions.

Section Hengsheng business in the field of new energy photovoltaic solar covers core product offering turnkey photovoltaic power plant construction, operation and maintenance of photovoltaic power plants. Among them, Section Hengsheng independent research and development and production of photovoltaic critical core equipment needed, including: photovoltaic grid / off grid inverter (1-630K), intelligent PV combiner box, distribution cabinet.

Section Hengsheng new energy photovoltaic core products obtained national Torch Program project certificate, national key new product projects certificates, obtained CE, Golden Sun, TUV and other domestic and international top-level certification. 2012, Section Hengsheng photovoltaic grid inverters lead detected through the national authority, successfully passed through the low-voltage, zero voltage crossing certification.

British Witten generation of PV grid-connected inverter EG Series

Recently, Shenzhen INVT Electric Co., Ltd. in the existing iMars basis B Series platform based on the combination of domestic and foreign distributed photovoltaic systems application needs, the successful launch iMars E series string type (multi-string type) and grid inverter, the product great to meet Australia, Britain, Germany, and the latest web standards, and can be widely used in the construction of the roof of distributed photovoltaic power generation system, a steady stream of customers with efficient, safe and cost-effective clean energy.

EG series of new products using thinner, lighter and more compact design; may Menu, dual MPPT configuration; while using the RS485 standard communication via the Internet for remote monitoring; Machine with IP65 protection class, perfectly adapted to a variety of indoor and outdoor operating conditions; their high stability, high cost of product advantages, can cover more market!

PHOTON Laboratory in the world's most famous only for evaluation, Chint Power 12KW inverter to obtain efficient version of the double A double A-level assessment under the irradiance PHOTON efficiency up to 97.2%, higher efficiency under high irradiance staggering 97.4%. This is the second 20kW inverter, Chint Power and get a double A-level assessment PHOTON products.

CPS SCA12KTL-DOHE is a transformerless design phase grid-connected inverter, the appearance of lightweight structures, the internal layout is clear. The MPPT range of 430-800V, 1000V DC's maximum input voltage, the effective range is satisfactory. As a dual MPPT inverter, it can be connected in parallel, the balance or unbalanced load operation conditions. Power level, Chint alternative power film capacitors selected short life electrolytic capacitors, extending the life of the equipment. Given its IP65 rated enclosure and allowing -25 - +60 ℃ operating under conditions of temperature, it is also suitable for outdoor installation.

This test, the inverter http://www.gridtiepowerinverteronline.com/  conversion efficiency at moderate MPP voltage range of up to 97.9%. With excellent MPPT adjustment efficiency, overall efficiency curve is almost consistent with the conversion efficiency curve display. Ranked No. 19 in this test 136 inverters in the total ranking.

Dulwich solid corporate supply inverters to PV project in South

Solid Jiangsu Dewei has announced that the company will provide 20MW of PV grid-connected inverter and a solution Guangdong Fuhua Heavy plant rooftop PV projects.

The project is due to the factory roof centralized inverter supply large quantities and characteristics of high electricity company , which will become the largest enterprise in southern China factory rooftop PV projects. By then, the entire power generation project for production use .

It is reported that the first shipment of solid Dulwich power inverter is the most efficient , most capable commercialgrid support inverter models. The company also provide customers inverter selection, technical advice and after-sales support and a series of complete solutions , to be closer to actual customer demand . The project leader said that the Guangdong Fuhua Group consumption greater power after completion of the project is completely self -occupied, can provide a strong guarantee for the production of electricity.

Currently, become a global trend of distributed PV PV development , where photovoltaic inverter is the key equipment system, which directly affects the overall quality of products and electricity generation efficiency of photovoltaic power plants . Currently, widely used in distributed power generation into the mainstream PV inverter type and centralized string dc ac inverter  . In the design of a PV system , the choice of what kind of inverter ( string or centralized ) , reflecting the different design ideas , there are different effects.