Uhome

01 Power-on/off management (including automatic wake-up)

Main Problems

Mainly in off-grid systems, due to complex operating conditions, the battery will run out of power until it shuts down. The customer needs to power on the batteries manually.

Solutions

With our products, the customer only needs to check the inverter battery automatic start option. When the photovoltaic or grid starts the inverter again, the BAT port of the inverter will output a voltage of about 48V in a short time, and this voltage will act as the start of the BMS.

02 In the triple protection, the effective guarantee of the safety of the person

Main Problems

The MOS tube solutions of other manufacturers are easy to stick when get a big current impacted. This can cause the battery to heat up rapidly or even catch fire.

Solutions

With our products, when a short circuit occurs, the circuit breaker acts as the primary protection, the fuse acts as the secondary protection, and the relay acts as the tertiary protection (final protection). Effectively ensure the safety of life.

03 The same type of product can be connected in parallel or in series

Main Problems

Energy storage inverters can be roughly divided into high-voltage inverters and low-voltage inverters.

Solutions

With our products, when the battery is used in combination with a low-voltage inverter, the batteries can be connected in parallel, and the number of batteries can be increased only according to the customer's capacity requirements; When used in combination with a high-voltage inverter, the batteries can be connected in series.

04 SOC dynamic calibration

Main Problems

The battery cannot be fully charged or cannot be completely emptied when discharging due to complex conditions. When the battery runs under above conditions for a long time, the battery SOC error will become bigger and bigger, and even SOC sudden change will occur

Solutions

With our products, we collect data such as cell voltage, total voltage, and temperature data into the software. During operation, when the SOC error is found to be too big and the calibration conditions are met, the SOC Dynamic calibration will start (SOC will not suddenlly change ), and the SOC error will be infinitely reduced.

05 Parallel strategy

Main Problems

Before adding a new battery, competitor manufacturers will ask the customers to add a current limitingmodule to achieve a certain voltage difference.

Solutions

With our products, after adding a new battery of the same type to the original system, it can be used normally. Uhome's BMS has designed a parallel strategy to prevent large current shocks caused by paralleling. Reduce installation worker wait, operation time and improve operational safety.

06 Accuracy of current and cell voltage acquisition

Accurate acquisition and precise control, free from the EMC interference of the inverter

07 Remote Monitoring

1. Remote monitoring of voltage, current, SOC and other data;

2. Remote upgrade of all batteries firmware (When the customer using multi batteries as one group. Only need to configure the network for the master battery. Then the engineers can upgrade them together or separately);

3. Easy to troubleshoot problems in order to solve after-sales technical problems;

4. Remote to set up data to meet your requirements.

08 Voltage Balancing Between the Batteries

Main Problems

Most of batteris on the market have voltage difference between battery packs after using or store a period of time, so the installers must to equalize the voltage manually when you need to use batteris. That is not convenient.

Solutions

1. Internal balancing of battery cells, turn on R1, R2 ~ Rn to achieve internal balance of the battery pack according to the voltage between the battery cell;
2. Turn on Rp according to the voltage difference between packs to achieve voltage balance between packs.