儲能系統(tǒng)要想安全？必須要做到這13個關鍵點！

最近的電池安全事故頻發(fā)引起了業(yè)界廣泛關注。因此在選擇儲能系統(tǒng)時，安全是需要考慮的關鍵因素。鑒于市場上針對儲能系統(tǒng)客戶有多種選擇，我們愿意給出建議，引導買家選擇更加安全的儲能系統(tǒng)和儲能產品。

Recent battery incidents have made the news. For this reason, the topic of safety has re-emerged as a critical factor in selecting an energy storage system. Given numerous market alternatives, it is our belief that a proper search should lead buyers to the safest choices.

選擇正確的電芯

從安全角度而言，我們將原始安全性（可以采取哪些措施來預防事故發(fā)生）與二次安全性（如何更好地控制和管理事故進展）區(qū)分開來。原始安全性直接與儲能系統(tǒng)的電芯相關。

In terms of safety, we differentiate primary safety (what can be done to prevent incident occurrence) from secondary safety (how to better control and manage hazards once an incident is underway). Primary safety is directly linked to the cell itself.

行業(yè)有不同類型的電芯可供選擇，每種都有其優(yōu)點，但最重要的是要選擇符合IEC62619標準的電芯。正如其標題所述，“含堿性或其他非酸性電解質的二次電池和電池組——工業(yè)級二次鋰電池和電池組的安全要求”，該標準專門用于確保電芯的安全性。

There are different kind of battery cells; each with its advantages. But the most important to consider is that the cell is compliant with the IEC62619. As mentioned in its title, “Secondary cells and batteries containing alkaline or other non-acid electrolytes – Safety requirements for secondary lithium cells and batteries, for use in industrial applications,” this standard is dedicated to the safety of the cells.

確保模組、電柜和集裝箱的安全集成

對于模塊和電柜：確保電池符合UL 1973和IEC 62619標準。

For modules and racks: Make sure the battery meets the UL 1973 and IEC 62619 standards.

選擇獲得UL9540A認證的電池意味著該儲能系統(tǒng)通過了UL機構模擬熱失控的測試，以檢查火災是否會蔓延。

Selecting a battery, which is UL9540A approved, means the system has been tested, simulating a thermal runaway incident, to check that the fire doesn’t propagate.

考慮到機械、熱、電和安全等約束條件。所有適用于船舶、運輸或固定式應用的系統(tǒng)都要經過廣泛的測試和認證過程。

As a 110-year old battery manufacturer, Leclanché has strong experience in battery integration taking into account mechanical, thermal, electrical and safety constraints. All systems for marine, transportation or stationary applications go through an extensive testing and qualification process.

投資安全的電池管理系統(tǒng)和能源管理軟件

使用安全且符合標準的組件是確保電池具有最高安全性水平的必要第一步；但是，如何使用電池也非常關鍵。這就是為什么電池管理系統(tǒng)（BMS）應確保電池使用不會超出其極限。為了保證這種功能安全性，BMS必須通過IEC61508進行認證，這是與電氣/電子/可編程電子系統(tǒng)功能安全相關的標準。

Using safe and standard compliant components is the mandatory first step to ensure the highest possible safety level; however, how the battery is used is key too. That’s why the battery management system (BMS) should ensure that the battery is not pushed beyond its limits. To provide this functional safety, the BMS must be certified according to IEC61508, the standard for functional safety of electrical/electronic/programmable electronic safety-related systems.

BMS生成大量數據，這些數據由能源管理軟件（EMS）讀取，在本地保存并定期備份到安全的云系統(tǒng)中。所有這些數據都可以用于電池的失效或偏差分析以及用于系統(tǒng)優(yōu)化。

The BMS generates a huge amount of data that are read by the energy management software (EMS), saved locally and regularly backed-up to a secure cloud system. All these data can be used for analytic purposes to detect possible battery misbehaviour or deviations at an early stage as well as optimise system operation.

系統(tǒng)分區(qū)更好地遏制事故發(fā)生

將儲能系統(tǒng)在固體外殼內分區(qū)有助于防止火災的發(fā)生和蔓延。

Dividing the energy storage system and partitioning the battery system in solid enclosures helps to prevent a fire incident from spreading to an entire site.

LeBlock是Leclanché全新的、安全的、模塊化的、可擴展的、即插即用型的能量存儲解決方案。它的設計旨在簡化物流并降低總成本和碳足跡。

LeBlock is Leclanché’s new, safe, modular, scalable, plug & play energy storage solution. It has been designed to simplify logistics and reduce total costs and carbon footprint.

電池模組放在高強度的集裝箱外殼里，這有助于防止火災的蔓延。

With LeBlock, battery modules are placed in compact enclosures based on robust container technology. This helps to contain a potential fire within each block.

外殼具有絕佳的耐火性和隔熱性能，可以減少輔源的消耗，進而可以保證電池獨立于外部環(huán)境，在一定溫度下運行（通常在20到23°C之間）。

The enclosures are highly fire resistant, providing the thermal insulation needed to minimise the auxiliary energy consumption to maintain the battery at a certain temperature – typically between 20 and 23°C– independent of the outside temperature.

選擇合適的消防系統(tǒng)

儲能系統(tǒng)分區(qū)提供了一種被動提高安全性的方法，但也有一些主動的方式來對抗火災。消防系統(tǒng)的目標是防止非電池火災蔓延到電柜中的其他電芯，從而防止涉及少數電芯的小事故變成大規(guī)?；馂?，其后果可能波及到整個電柜或集裝箱。標準的消防系統(tǒng)系統(tǒng)包括煙霧和溫度傳感器和氣溶膠系統(tǒng)，在火災發(fā)展到一定程度時會自動觸發(fā)。

Whereas partitioning provides a passive way to improve safety, there are some active ways to fight fires. The goal of a fire suppression system is to prevent a non-battery fire from reaching other cells in the block – preventing a small incident involving a few batteries from turning into a large-scale fire whose consequence could be the replacement of the entire container – or worse, an entire site. A standard fire detection and suppression system consists of smoke and heat detection sensors integrated, with automatic activation, into an aerosol extinguishing system.

使用泄爆板保障員工安全

人員安全至關重要。即使儲能場地得到安全保障，員工在維護和例行系統(tǒng)檢查時也會在附近工作。他們可能會站在火災或爆炸發(fā)生時的儲能電柜和集裝箱旁邊。為了保護他們的安全，泄爆板能夠將內部火災產生的壓力從頂部泄出，確保在該區(qū)域工作的人們免受側面爆炸的傷害。

The safety of personnel is key. Even if a site is secured, employees will be working nearby for maintenance and routine system checks. They could be standing next to a battery block when a fire or explosion takes place. In order to protect their safety, a deflagration panel enables the force of any internal pressure to be directed upwards. It ensures that people who are working in the area are protected from sidewards explosions.

泄爆板的設計和制造要符合NFPA 68標準。

LeBlock is equipped with deflagration panels compliant with NFPA 68.