博文

TSUN PV Rapid Shutdown Solution

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TSUN , a professional provider of energy storage solutions, has announced the launch of PV Rapid Shutdown Solution , which is a simple and economical Rapid Shutdown Solution that meets the requirements of the US NEC2017 690.12 standard. Adding the Rapid Shutdown Control Unit to the original PV system, when the PV module has a safety hazard, shutting the system down only needs one button. It can quickly turn off the corresponding PV modules within seconds, highly improves the safety of rescue, and reduces the loss of the PV system when it encounters a fire risk. In the PV system, PV panels are connected in series, so the voltage of the whole line is accumulated and can easily reach to a high voltage of 600V-1000V. When fire occurs, as long as there is sunlight on the DC side, the panel will keep on generating power. But when the DC side is with a high voltage of 600V-1000V or even above, the firefighters will not be able to put out the fire taking direct risk of electric shock. Therefor...

TSUN Easy Solar Kit - 2nd Generation (Portuguese)

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O Easy Solar Kit (http://www.tsun-ess.com/easy-solar-kit-2nd-generation), um kit PV portátil desenvolvido pelo experiente fornecedor de soluções de armazenamento de energia - TSUN, proporciona geração de energia conveniente e eficiente através da combinação de módulo fotovoltaico e micro inversor. O Easy Solar Kit é feito de quatro partes: módulo fotovoltaico, micro inversor, suporte e pedestal ajustável. Os micro inversores TSUN têm uma ampla gama de 300 W a 1600W, totalmente compatíveis com módulos mono e poli. 96,7%, a eficiência máxima dos micro inversores TSUN, leva cada módulo PV à sua força máxima de potência, e a baixa tensão DC garante a segurança elétrica doméstica. O Easy Solar Kit sincroniza-se com o ciclo de vida do módulo fotovoltaico. Os acessórios opcionais tornam-no mais aplicável a diferentes ambientes de instalação. Além disso, recomenda-se um monitoramento inteligente opcional. Dobrável e extremamente portátil, o Easy Solar Kit pode ser colocado em jardins, ...

TSUN Easy Solar Kit - 1st Generation

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TSUN Easy Solar Kit - 1st Generation (http://www.tsun-ess.com/easy-solar-kit-1st-generation), a combination of solar panel, micro inverter and angle-adjustable bracket, breaks the pattern of traditional solar panel installation, enabling more energy, easier installations,lower costs and higher protection. The integrated Easy Solar Kit allows for compact transportation, distribution andprovides alternative installation places like the garden, flat rooftop, campground and etc, permitting installation by yourself by pulling the bracket out. 1.MORE ENERGY Combine micro inverter and high quality panel, with adjustable opening braket to maximize the electrical generating capacity. 2.ALL-IN-ONE The system integrates with solar panel, inverter, safety box (optional) and cables. Portable and foldable for various applications. 3.EASIER INSTALLATION Plug & play connection, no requirement for professional installation, saving installation costs. 4.GUARANTEED QUALITY Under one...

TSUN Easy Solar Kit - 2nd Generation

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Easy Solar Kit (http://www.tsun-ess.com/easy-solar-kit-2nd-generation), a portable PV kit developed by the professional energy storage solution supplier-TSUN, provides convenient and efficient power generation through the combination of PV module and micro inverter. The Easy Solar Kit is made of four parts: PV module, micro inverter, backplane and pedestal. TSUN micro inverters have a wide range from 300 W to 1600W, fully compatible with mono and poly solar modules. 96.7%, the max. efficiency of TSUN micro inverters, leads each PV module to its maximum power output, and the low DC voltage guarantees home electrical safety. The Easy Solar Kit synchronizes with the life cycle of PV module. The optional accessories make it more applicable to different installation environments. Moreover, optional intelligent monitoring is recommended. Foldable and extremely portable, the Easy Solar Kit can be placed in gardens, on flat roofs or even in balconies. The all-in-one design makes it eas...

Create highly reliable PCS with spirit of craftsmanship

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Driven by both market and policy, "Photovoltaic + Energy storage" is rising rapidly in developed markets such as Europe, Australia and other countries. At the same time, the development of distributed industrial and commercial energy storage system appears new opportunities after the “531” new policy in China's domestic photovoltaic market. In 2019, the cumulative installed capacity of electrochemical energy storage rapidly broke through the "GWH". Electrochemical energy storage is expected to be in a turning year of large-scale application, but also exposed a large number of potential safety hazards. As the "CPU" of the whole energy storage system, the PCS urgently needs high-reliability products to provide a strong heart for the energy storage system. TSUNESS brings together the core team of the industry's top senior technical engineers, with the support of learning and research from institute and university, covering the core technical cap...

A Discussion of the Solution for High-voltage Safety Hazards on DC Side in Residential PV System

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Growing solar photovoltaic demand In the past 2019, global solar photovoltaic installed capacity has also grown tremendously. Taking the European Union as an example, according to data from Solar Power Europe, 2019 is the best year for solar photovoltaic development in the European Union, with 16.7 GW of new installations, an increase of 104% (8.2 GW of new installations in 2018). Spain increased its installed capacity by 4.7 GW in 2019, making it the EU’s largest solar market, followed by Germany (+4 GW), the Netherlands (+2.5 GW), France (+1.1 GW) and a surprised Poland (the installed capacity quadrupled in 2019, reaching 784 MW by the end of 2019, and the EU’s incremental photovoltaic capacity reached 131.9 GW, an increase of 14% from last year (the total installed capacity at the end of 2018 was 115.2 GW). As it continues to rise, some security risks are gradually emerging. Increasing concerns for the safety of photovoltaic systems For photovoltaic systems, there are two major...

Brief Talk about Efficiency Improvement of PV Inverters

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1.Importance of Inverter Efficiency Improving conversion efficiency is of great importance to PV inverters’ performance. If we assume a 500KW inverter generating for an average of 4 hours per day, when its efficiency rises by 1%, nearly 20 KWH more energy will be produced daily and 7,300 KWH more annually. Therefore, in order to maximize the benefit of customers, it's critical to increase inverter efficiency as much as possible. 2.Factors Affecting the Efficiency of PV Inverters The only measure to improve PV inverter efficiency is to reduce losses that mainly come from power switching tubes such as IGBT and MOSFET, as well as magnetic devices like transformers and inductors. Energy losses caused by IGBT mainly include conducting loss and switching loss, among which the first one is related to the internal resistance of its components and the current that passes through it, while the switching loss is more relevant to the switching frequency of power devices and the DC...