Solaredge SE7000A-US单相逆变器

Solaredge SE7000A-US 7KW逆变器评论

SolarEdge Grid-Tie逆变器系统应对住宅太阳能光伏系统逆变器遇到的所有挑战。

与传统的逆变器系统相比，能源产量增加：

• SolarEdge inverters allow for more solar energy harvest due to module-level MPPT
  No power loss due to module mismatch due to power optimization per module
• Constraint free design allows for utilization of more roof area
• 对PV系统的增加的上延长的维护方便，高效维护

SolarEdge Power Optimizer

这SolarEdge power optimizer is connected by installers to each module or embedded by module manufacturers, replacing the traditional solar junction box. Therefore, it must be as reliable as the module itself with the ability to withstand the same environmental conditions to which the module is exposed.

Solaredge可靠性战略的本质是一种基于物理的失效点识别方法。通过可靠性导向的设计规则的组合，能够提供经过验证的25年系统运营寿命的保修。在选择顶层供应商和验收测试中，它们的组件在受控环境中制造，系统（及其组件）的加速终身测试被执行到磨损点，以便确定何时产品将失败，以什么速率和失败机制。

安全：

• During Installation: safe string voltage until inverter & AC supply are turned on
• Maintenance: safe string voltage with an automatic DC shutdown once inverter is turned off
• Emergency: safe string voltage with an automatic DC shutdown after grid disconnection or in reaction to high temperature
  Electrocution and fire risks are eliminated with safe voltages during installation, maintenance and firefighting

内心的平静：

• 能够随时随地监控PV系统，以保证最佳操作
• Module level, real-time alerts of system issues pinpointed on a virtual map

增加能源收益率：

• More energy due to module-level MPPT
• 不匹配功率损失消除了
• 遮阳宽度确保在树木和其他障碍物下的最大功率收获
• 对PV系统的增加的上延长的维护方便，高效维护

Solaredge的多级可靠性：

这SolarEdge multi-level reliability plan involves Design Analysis & Qualification by in-house and external experts, sub-system testing by Accelerated Life Testing (ALT) of critical components, and integrative testing of design prototypes (via HALT) and large sample groups.

As part of these efforts, tens of thousands of components have been evaluated in accelerated life chambers (burn-in, thermal cycling, humidity and so forth) as well as hundreds of products in field tests and stress tests. These tests have run for the equivalent of over 100 years (well over the expected life of photovoltaic systems). The lessons learned are invaluable and as a result, SolarEdge produces systems with unsurpassed reliability.

In order to verify that each SolarEdge product that leaves manufacturing plants conforms to our high reliability and quality standards, each component, sub-assembly, and final product are tested multiple times during production. These tests include: Automatic Optical Inspection, In-Circuit Testing, Board- and Component-Level Functional Testing, Safety Testing and Integrative Stress Testing. These rigorous screening and testing procedures, which are completed for 100% of the products we make, enable us to guarantee that SolarEdge products work as expected for the entire product lifetime.

SolarEdge可靠性战略的一个关键要素– and a significant differentiator relative to its competitors – is use of proprietary application specific ICs (ASIC) in its products. The best way to improve the reliability of electrical circuits is to reduce the number of components in it – this is done in SolarEdge products by replacing a large number of discrete components with a single ASIC designed specifically for the task at hand. The ASIC itself is manufactured according to proprietary design rules specifically defined to allow for the long 25 year lifetime of the ASICs. Extensive analysis and testing has been done to assure the ASIC packaging is robust enough to handle the mechanical and electro-chemical stresses experienced over 25 years of daily thermal inverter cycling.

SolarEdge Product Overview