DC coupled energy storage system

Advantages:

High system efficiency: DC hybrid energy storage systems can avoid energy conversion from AC to DC, resulting in higher system efficiency

Low system cost: The DC combined energy storage system does not require additional inverters, so the system cost is lower

Simple system structure: The DC coupled energy storage system has a simple structure and is easy to maintain.

Disadvantages:

Poor system flexibility: DC hybrid energy storage systems can only be used in conjunction with DC power generation equipment (such as photovoltaic power generation), resulting in limited flexibility

Poor.

The follow pic for DC coupled:

Poor system security: In a DC hybrid energy storage system, the battery is directly connected to the photovoltaic power generation equipment. If the photovoltaic power generation equipment malfunctions, it may damage the battery pool.

AC coupled energy storage system

Advantages:

Good system flexibility: The AC Jiehe energy storage system can be used with any type of power generation equipment, with good flexibility and high system safety. In the AC Jiehe energy storage system, the battery is connected to the photovoltaic power generation equipment through an inverter. If the photovoltaic power generation equipment fails, the battery will not be damaged.

Disadvantages:

Low system efficiency: The AC hybrid energy storage system requires energy conversion from AC to DC, resulting in lower system efficiency

High system cost: The AC coupled energy storage system requires additional inverters, so the system cost is high. The system structure is complex, and maintenance is inconvenient.

general comparison

The follow for AC coupled:

DC portable energy storage systems and AC coupled energy storage systems each have their own advantages and disadvantages. The DC hybrid energy storage system has high efficiency, low cost, and simple structure, but poor flexibility and safety. The communication Jiehe energy storage system has good flexibility and high safety, but low efficiency, high cost, and complex structure.

In practical applications, appropriate types of energy storage systems should be selected based on specific circumstances. If an energy storage system with high efficiency, low cost, and simple structure is needed, a DC coupled energy storage system can be chosen. If a highly flexible and secure energy storage system is required, an AC coupled energy storage system can be chosen.

Product characteristics of Sino Soar's bidirectional energy storage converter

✔ Intelligent and efficient

Advanced three-level circuit topology with a maximum conversion efficiency of 98%

Wide DC voltage range, 600-950V

Advanced control algorithms with multiple operation modes including constant current, constant voltage, and constant power available

Equipped with off grid output function

Supports long-term overload operation at 110% rated power, and overload at 150% rated power for 10ms

Stable operation of intelligent air cooling and liquid cooling

✔ Economically friendly

Ultra high power density, smaller volume with equal power

Integrated design for easy transportation and integration

Support multi machine AC/DC parallel connection and flexible expansion

Independent modular architecture, convenient maintenance

✔ Safe and reliable

Complete battery protection and maintenance strategies to improve battery life

Protection against overcurrent, overheating, overload, overvoltage, short circuit, lightning protection and grounding

Equipped with zero voltage and high voltage traversal functions, with strong adaptability to the power grid

High performance DSP, optimized control circuit design, more stable system

Adapt to harsh environments of low temperature, high humidity, and high altitude

✔ Smart Internet

Supports RS485, Ethermet, and CAN communication methods, and can receive BMS commands in real-time

Support MODBUS-RTU/MODBUS-TCP/CAN2.0B/

About us

Sino Soar was established in 2015 and is located in Shenzhen, the electronic city of China. The company is committed to providing users with system solutions for power monitoring, power quality management, electrical safety, etc. It is a national high-tech enterprise specializing in the research and development, manufacturing, sales, and service of power electronic devices.

The company's main products include PCS energy storage converters, optical storage integrated machines, and energy storage system