Multi-Branch Converter Booster Chamber pairs with batteries for peak shaving

Product Description

The Multi-Branch Converter Booster Integrated Chamber belongs to the substation field, specifically designed to address power waste caused by energy consumption in new energy power generation systems. By working in tandem with battery compartments, this equipment can store surplus electricity generated by new energy systems. When power demand peaks, the stored electricity is released as a supplement to the grid, effectively eliminating power waste.

Its core capabilities include peak shaving and valley filling (balancing grid load during high and low demand periods), meeting users' dynamic power needs, smoothing the output power of new energy systems, and improving the grid acceptance rate--ultimately enhancing economic benefits for users.

Structurally, the integrated chamber integrates four key components: the control and protection section, PCS (Power Conversion System) inverter section, high-voltage section, and transformer section. A distinctive design feature is that the control and protection section are arranged on the same side, while the transformer section is positioned between the PCS cabin and the high-voltage section. The PCS cabin enables bidirectional energy conversion: it converts AC power from the grid into DC power to charge the battery compartment, and feeds stored DC power back to the grid as AC power when the grid requires additional energy. As an ideal energy storage device, it must be used in conjunction with battery compartments.

Key Features 

• Compact Design & Efficient Cooling: Features a compact structure that occupies minimal space. Equipped with external radiators, it achieves superior heat dissipation efficiency, ensuring the equipment operates within a stable temperature range even under high-load conditions.

• Advanced Transformer Technology: Adopts new-generation transformer series technology with a rational internal structure. This design enhances operational stability and reliability, minimizing the risk of equipment failure during long-term use.

• Transformer Oil Insulation for HV Side: Uses transformer oil as the insulating medium for 10kV or 35kV high-voltage (HV) side components. This significantly reduces the required safe distance for HV elements, further optimizing the overall size of the equipment.

• Fully Sealed Oil Tank: The transformer oil tank adopts a fully sealed structure, which completely isolates transformer oil from the atmosphere. This design reduces oil oxidation and prevents moisture intrusion, greatly improving the stability, reliability, and service life of the system. Additionally, it is equipped with easily detachable chip radiators, simplifying maintenance operations and lowering maintenance costs.

• Corrosion & UV-Resistant Enclosure: The chamber's shell undergoes a special spraying process, giving it excellent anti-corrosion and anti-UV (anti-exposure) performance. It can effectively resist erosion from sand, wind, and harsh weather, making it suitable for long-term outdoor operation.

• High-Performance LV Side Switches: The low-voltage (LV) side is equipped with new-type intelligent circuit breakers and molded-case air switches. These components offer high breaking capacity (to handle sudden current surges) and reliable protection against overcurrent, overload, and short circuits--safeguarding the LV side circuit.

• Remote Monitoring & O&M Capability: The transformer oil tank can be optionally fitted with pressure gauges and thermometers with communication interfaces. Meanwhile, the load switch can be equipped with a travel switch. These configurations enable remote monitoring, remote operation, and remote maintenance of the chamber, reducing the need for on-site manual intervention.

• Integrated & Space-Saving Layout: By integrating the control and protection, PCS inverter, high-voltage, and transformer sections into a single unit, the chamber avoids the need for separate installation of multiple devices. Its optimized internal layout further saves space, simplifying on-site installation and reducing overall project costs.

Technical Specifications

Application Scenarios 

1. Large-Scale Photovoltaic (PV) Power Plants: In PV plants, the chamber stores surplus electricity generated during periods of strong sunlight (when generation exceeds grid demand). During evening or cloudy periods (low PV generation, high grid demand), it feeds stored power back to the grid--achieving peak shaving and valley filling, reducing power waste, and improving the plant's economic returns. Its anti-corrosion and sand-resistant enclosure also adapts to the outdoor environment of PV plants.

2. Onshore Wind Farms: Wind power generation is highly dependent on weather, leading to unstable output. The chamber works with battery compartments to store electricity during high wind speeds and supply it to the grid during low wind speeds, smoothing wind power output and increasing grid acceptance. Its compact design saves space in wind farms, while remote monitoring simplifies O&M in remote wind farm locations.

3. Industrial & Commercial Distributed New Energy Projects: For distributed PV or small wind systems in industrial parks or commercial buildings, the chamber addresses the mismatch between on-site generation and load demand. It stores excess power during off-peak hours (e.g., nights in factories) and uses it during peak production hours--lowering enterprises' reliance on grid power and reducing electricity costs. Its small footprint fits the limited space of industrial/commercial sites.

4. Grid-Tied Energy Storage Stations: As a core component of grid-tied energy storage stations, the chamber coordinates with large battery banks to provide peak shaving, valley filling, and emergency power support for the grid. It stabilizes grid frequency and voltage, enhances grid resilience, and helps absorb more intermittent new energy (PV, wind) into the grid.

5. New Energy Microgrids (Rural/Remote Areas): In islanded or semi-islanded microgrids (e.g., rural areas, mining sites with limited grid access), the chamber works with local new energy systems (e.g., small PV arrays) and battery compartments to form a self-sufficient energy loop. It ensures stable power supply for local residents or industrial loads, reducing dependence on diesel generators and promoting clean energy use.