Rising to the 1,000-Meter Head Challenge | Hope Slanvert SB70 Series VFDs Support Smooth Commissioning of a High-Head Photovoltaic Water-lifting Project

As a supporting water conservancy facility for agriculture, this undertaking is located among lofty mountain ranges and faces multiple challenges, including a high lifting head, lack of local power-grid infrastructure, and harsh natural environments.

To address these constraints, the project combines pure photovoltaic power generation with transformer-based transmission, reducing dependence on the public grid.

Project scale: The designed water-lifting head reaches 1,100 meters, with a total pipeline length of approximately 10 kilometers.

Water supply capacity: It stably delivers a daily water lifting volume of 1,000 cubic meters, effectively addressing the challenges of domestic water supply, agricultural irrigation, and ecological water replenishment in high-mountain areas.

The entire project is powered by clean energy, with zero pollution and low operation and maintenance costs, making it a typical practice of green water conservancy and low-carbon infrastructure.

Technical Empowerment: How the SB70 Series Delivers "Life-Sustaining Water" to High Mountains

Faced with operating challenges such as large fluctuations in photovoltaic DC input, complex high-low voltage step-up/step-down processes, and significant long-distance transmission losses, the Hope Slanvert SB70 series high-performance vector control VFD has emerged as the "optimal solution" for the project's core drive.

01 Dedicated Photovoltaic Adaptation for Streamlined System Architecture

Photovoltaic power generation is affected by weather, resulting in frequent voltage fluctuations. The SB70 series VFD supports direct photovoltaic DC input, eliminating the need for complex conversion equipment. Its built-in precise voltage stabilization control algorithm can smoothly absorb power variations caused by irradiance changes, substantially improving photovoltaic power generation efficiency.

02 Precise Drive for Long-Distance "Uphill" Water Delivery

The project adopts two-stage cascaded water-lifting with a highly complex power link. The SB70 VFD output precisely drives the front-end transformer to complete the 690V to 10kV high-voltage conversion, enabling long-distance low-loss power transmission; after reaching the remote mountainous area, the voltage is stepped down to match the terminal VFD driving the water pump, completing the kilometer-level head lifting step by step. The entire process of power transformation, water transmission, and water lifting is stable and controllable, demonstrating exceptionally strong system adaptability.

03 Industrial-Grade Protection for Reliable Operation Under Extreme Operating Conditions

The high mountain environment features heavy condensation and abundant dust. The SB70 series VFD adopts a sealed, dust-proof structure with multiple heat dissipation designs and uses high-performance components throughout, adapting to the variable conditions of photovoltaic power generation. The equipment possesses superior overload capacity, capable of confidently handling heavy-load startup of high-head water pumps and sudden pipeline pressure fluctuations, ensuring stable system operation.

From outstanding product performance to comprehensive energy efficiency optimization, Hope Slanvert consistently upholds its corporate responsibility under the "Dual Carbon" strategy through technological dedication. The successful commissioning of this high-head photovoltaic water-lifting project represents an important practice of the enterprise in promoting the deep integration of photovoltaic new energy and water conservancy infrastructure through technology.

Looking ahead, Hope Slanvert will continue to deepen its R&D on core VFD technologies, create more reliable and intelligent drive control solutions, and cooperate with industry partners to jointly facilitate the green and low-carbon transformation of industries.