Huawei intelligent photovoltaic (pv) 99. 996% availability, helping our clients achieve better IRR

The world pv look at China, China pv qinghai! Qinghai golmud pv park east export, vast stretches of solar panels slightly proud head, like a green crops bring vigor to the ancient plateau.

the third party TÜ V苏 D release of golmud pv power station 'technology from the performance index and power generation due diligence' points out: 4939 sets of three periods of the photovoltaic power station adopts the huawei smart group string type inverter, availability is as high as 99 statistical period in 583 days. 996%. “ Huawei inverter is very worry, requires little maintenance & throughout; , on-site operations engineer said.

by qinghai province HaiNaZhou photovoltaic industry park of hundred megawatts empirical base of the actual test, huawei group string type inverter is higher than collecting and distributing type power generation 0. 9%, 2% higher than centralized power. And distributing type failure rate is huawei group list of 10 times; Centralized inverter is huawei group list of 15 times failure rate. The empirical base of the large amounts of data show that all inverter scheme, huawei group string of generating the highest, the lowest failure rate. （ Data sources: look here! World-class intelligent photovoltaic the origin of the innovation achievements and future)

so, what is the inverter availability? TA for photovoltaic power station internal rate of return ( IRR） What is the impact? 99. And how do 996% availability tempered? Let small make up to disassemble one by one for you.

availability is one of the measure index of system performance is good or bad. Inverter availability refers to the statistical inverter in the available state in the period of time accounts for the proportion of the total time index, is the important indicators of quality of inverter and the manufacturer service, photovoltaic power station are decided the core element of the internal rate of return. Its computation formula is as follows:

TÜ V苏 D engineers in golmud pv power station on-site audit operation maintenance records, statistics of the inverter, not with the total number of days and the total number of days of operation, and calculate the huawei group series inverter availability of type 99. 996%, is the only industry by the third party certification of photovoltaic power station site availability empirical report. A project is calculated according to the qinghai region, a 1% increase in availability, generating capacity will increase by about 1%, operational costs are reduced at the same time, the IRR will improve about 0. 6%.

leading technology solutions & ndash; — Huawei intelligent photovoltaic adopted set of string type, inverter, dc junction box, no wearing parts such as fuse, without auxiliary power supply system, lighting, fire protection, machine room monitoring and a series of auxiliary equipment failure rate is higher, networking is simple, less point of failure, system failure probability is low.

leading product quality & ndash; — Huawei inverter strictly follow IPD development processes, guarantees the long-term reliable products from the design source; Adopts the design of IP65 / IP66 inverter internal components in a fully enclosed environment, dust, moisture, salt spray, etc. Will not affect the internal device working environment, thus greatly enhance the internal components reliability. Before the market, inverter has been the global certification testing center ( GCTC） More than 1400 severe test, salt spray corrosion/wet dust cover, lightning, high altitude, temperature limit ( - - - - - - 60℃本; 100℃） Scenarios, such as to ensure the products in all kinds of bad environment and stable operation.

Beijing jian, deputy director of the center of attestation of equilibrium JiZhenShuang said the inverter fault power average loss rate in 1. About 5%, good level in 0. 5%, while huawei which is the industry benchmark levels, the failure rate is only 0. 3%.

fault recovery time is short & ndash; — Huawei smart group string type inverter machine change, only need to ensure a stand-by power station site can achieve rapid change, the output of inverter failure loss is much lower than centralized inverter. , according to a power station in qinghai centralized inverter a month is not repairable, loss of capacity of about 60000 degrees, the station inverter availability in 91. 78%.

have analysis report, the contemporary Europe, India and other photovoltaic power station has already begun to set of string type inverter to replace the existing centralized inverter, precisely because of the centralized inverter availability, low maintenance time is long, the maintenance cost is high. Similarly, ningxia a photovoltaic power station in China, starting in 2015 with a set of replacement string type inverter fault centralized inverter, is expected by the end of all completed replacement. Photovoltaic

at present, our country has stepped into a new stage of parity and competition online configuration parallel, power plant developers more and more high to the requirement of cost performance, high availability of products and solutions, truly guarantee the power station of the internal rate of return, to make affordable Internet access road to go more smoothly.