Qinghai Oilfield DC Bus Energy Storage Project Delivered
Qinghai Oilfield DC Bus Energy Storage Project Delivered Recently, VGID POWER (Shenzhen) and a Shandong-based customer jointly delivered a PV-storage-charging project to PetroChina Qinghai Oilfield. The project adopts a DC bus architecture and uses two types of batteries for energy storage: lithium iron phosphate (LFP) and flow batteries. It employs 60 kW each of PV modules from Huasun, LONGi, and JinkoSolar, plus VGID POWER's self-developed 60 kW MPPT modules, 215 kWh of LFP batteries, 100 kWh of flow batteries, and VGID POWER's self-developed 100 kW
Recently, VGID POWER (Shenzhen) and a customer from Shandong jointly delivered a PV-storage-charging project to PetroChina Qinghai Oilfield. The project adopts a DC bus architecture, using two types of batteries for energy storage: lithium iron phosphate (LFP) and flow batteries. It uses 60 kW each of PV modules from Huasun, LONGi and JinkoSolar, plus VGID POWER's self-developed 60 kW MPPT modules; 215 kWh of LFP batteries and 100 kWh of flow batteries work with VGID POWER's self-developed 100 kW DCDC modules to stabilize the DC bus. Priority is given to PV-generated power, followed by flow battery power, and finally LFP battery power.
EMS Interface
On-site Installation
LFP Energy Storage Cabinet
MPPT and DCDC Distribution Cabinet
The 30 kW PV-storage all-in-one unit is a highly efficient, highly reliable energy storage inverter developed for small and medium-sized energy storage microgrids. It features isolated air ducts, an on/off-grid transfer device, support for multiple units operating in parallel off-grid, support for hybrid operation with diesel generators, support for on/off-grid transfer modes, and support for two PV MPPT module inputs. It includes PCS, STS, MPPT and anti-reverse-flow CT, and supports host computer communication. Virtual synchronous generator (VSG), 150% overload capability, seamless transfer, diesel hybrid mode, three-phase independent grid-connected control technology, three-phase independent grid-connected control technology.
Application Scenario 1:
Oilfield wind-PV-diesel-storage projects, 30 kW/100 kWh to 150 kWh projects, using a 30 kW PV-storage all-in-one unit plus wind turbines connected to the DC bus, using 280 cells configured for 100 kWh to 150 kWh, for optimal cost; oil pumping units are connected directly from the load side.
Application Scenario 2:
The energy storage converter independently developed by VGID POWER is a bidirectional on/off-grid converter designed specifically for microgrids. The equipment connects the energy storage system to the AC grid and can be dispatched by the energy management system or perform bidirectional power conversion according to configured parameters.
The SP100H can operate grid-connected on the AC side and can also run independently off-grid. Its specially designed grid-connected mode enables parallel operation with diesel generators.
The most distinctive advantage of the SP100H is its broad support for operation in both grid-connected and off-grid modes. With a high protection rating, a wide temperature range and strong overload capability, it provides the reliable protection that microgrid systems require. The intelligent load management and energy management capabilities of the SP100H keep the system running normally even in critical moments.
VGID POWER (Shenzhen) Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, sales and service of energy storage system PCS modules and PV-storage all-in-one units.
The company is located in Bao'an District, Shenzhen. Its core team originates from Emerson and comprises experienced, professional and efficient members. The
company focuses on the R&D and manufacturing of energy storage converter PCS modules and PV-storage all-in-one units, providing customers with standard products and PCS system solutions. The company is committed
to a customer-centric approach, with professionalism and service at its core, delivering products and services that customers can trust.
01
Technology R&D
The technical team of VGID POWER (Shenzhen) has many years of energy storage converter R&D experience. Originating from core R&D members of Emerson, the team adheres to the IPD R&D management process, focuses on microgrid scenarios, and builds products with the best performance and the highest degree of standardization and modularization. With a deep understanding of microgrid scenarios, it provides full-chain "turnkey" overall solutions.
02
Product Certifications
The energy storage converters developed by VGID POWER (Shenzhen) have passed certifications including 62116, 61727, 62477, 62109, g99, 61000-6, EN50549, CE and CQC. The company currently holds 15 utility model patents, 5 invention patents and 3 design patents.
03
Global Reach
VGID POWER (Shenzhen) supplies energy storage converters to VGID POWER (Beijing). They have been deployed worldwide, with a business footprint covering Southeast Asia, Central Asia, Europe, the Pacific region, Central and South America, and Africa.
Product development follows the IPD R&D process and strict quality testing standards. Performance, vibration, salt spray, durability and limit tests safeguard quality.
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Full Charge Departure · Riding the Waves in Qingyuan — VGID POWER 2026 Annual Team Building Event Concludes Successfully
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