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在线检测高压加热器 (HVH)

高压加热器 (High Voltage Heater, HVH) 用于控制车辆的内部温度以及保护和管理电池等各种车载系统。
由于 HVH 将直流电无损耗转变为热量，制造商经常采用该技术。根据车辆（小型汽车、公共汽车、卡车等）开发各种工作电压的 HVH，加热功率高达 10 kW。

主要应用事实

领域


在不同生产阶段在线检测高压加热器

应用


检查电子控制装置的功能

测量参数


高达 100 至 900 V DC 的电压和相应的电流

主要要求


根据被检产品施加高达 900 V DC 的电压

在安装/在线检测过程中必须安全、精确测量高电压

需要针对不同的应用灵活选择输入电压

电子控制装置功能检查

应用说明

HVH 的生产过程包括许多步骤，其中一些必须手动完成。在各个生产阶段都要进行不同的在线检测，为此根据加热器类型对高压加热组件施加 100 至 900 V DC 电压。
测量该电压和相应的电流，以便检查电子控制装置的功能。考虑到危险的人体电流，在检测过程中不得接触被检件。

应用的要求

为了获得可靠的检测结果，应注意使用精确可靠的测量设备，因为在生产环境中使用实验室设备并不总是切实可行。在下线试验台以及开发阶段的试验台中，均可找到适合工业应用的优质设备。这意味着，经过工业验证的高品质设备不仅用于下线试验台，也在开发阶段使用。

为何选择 Knick?
Knick P29000 高压隔离放大器可以测量高达 1000 V DC 的电压。增益误差小于测量值的 0.2%，并通过工作电压为 1000 V AC/DC 的 3 端口隔离（基本隔离）保证精度和安全。使用 5.4 kV AC 在输入和输出/电源之间进行高压检测，以验证隔离无瑕疵。通过设备前保护盖后面的 DIP 开关设置输入和输出测量范围。

相关产品

P29000 High Voltage Transducer | Calibrated range selection
P29000 High Voltage Transducer | Calibrated range selection
商品编码:

P29000

相关工业和应用

功率硬件在环 (HIL)
借助 HIL 测试，可以在各种电池、负载和故障情况下评估牵引逆变器等设备的原型，不必在试验台上或车辆中测试逆变器。
检测电池管理系统 (BMS)
测试系统在电池模型中产生控制电压，以便模拟电池管理系统的温度条件，并评估 BMS 的温度管理。
电池循环测试仪
在电池测试过程中，通过 HIL 配置（硬件在环）持续模拟充电和放电过程（电池循环），该配置与电动汽车运行期间的典型使用情况相对应。所测量的一系列参数包括容量、电池效率和自放电。
车辆与充电站之间接口的直流电压测量
可以通过受电弓为电动商用车快速充电。为此需要在（带活动受电弓的）外部基础设施系统和固定安装在车顶上的充电杆之间保持接触。直流车顶配电箱包含检查充电连接和相应电压、以及与其他车载系统建立连接的组件。
工厂检测单元中的电气安全
生产过程中使用的检测单元通常由防护罩和电压检测器保护。
电动汽车手册


电动汽车测量技术应用和产品解决方案总览

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