Wind Turbine Storage Systems
191 patents in this list
Updated:
Wind power's inherent variability creates significant storage challenges, with turbine outputs fluctuating between zero and rated capacity across timescales from seconds to seasons. Current utility-scale storage solutions struggle to bridge these gaps efficiently, with batteries facing capacity limitations and pumped hydro restricted by geography.
The fundamental challenge lies in developing storage systems that can efficiently capture surplus wind energy during peak generation while providing reliable power during calm periods—all while maintaining economic viability at grid scale.
This page brings together solutions from recent research—including onsite hydrogen production systems, hydraulic accumulator designs, compressed air storage networks, and hybrid water pumping approaches. These and other approaches focus on practical implementation strategies that balance storage capacity, response time, and system costs while maintaining grid stability.
1. Wind Power Energy Storage System with Integrated Battery and Supercapacitor for Predictive Discharge Optimization
GUANGDONG YONGGUANG NEW ENERGY DESIGN CONSULTING CO LTD, GUANGDONG YONGGUANG NEW ENERGY TECH CO LTD, GUANGDONG YONGGUANG NEW ENERGY TECHNOLOGY CO LTD, 2024
Wind power intelligent energy storage system that improves flexibility and efficiency of wind power generation by integrating battery and supercapacitor storage with predictive discharge optimization. The system allows storing excess wind-generated electricity in the battery when winds are strong, and discharging it when winds are weak to smooth out variability. This improves wind power stability compared to direct connection to the grid. The supercapacitor provides fast response for short-term energy needs. The system predicts load demands and optimizes battery discharge levels to maintain constant output.
2. Wind Turbine Energy Storage System with Double-Stator Switched Reluctance Generator and Sliding Mode Controlled Bidirectional Buck/Boost Circuit
FENGXIAN POWER SUPPLY BRANCH COMPANY STATE GRID JIANGSU ELECTRIC POWER CO, XUZHOU POWER SUPPLY BRANCH COMPANY STATE GRID JIANGSU ELECTRIC POWER CO LTD, 2024
A wind turbine energy storage system with a novel control method to improve stability and efficiency. The system uses a double-stator switched reluctance generator with separate inner and outer stators. It connects a supercapacitor between the generator and DC load using a bidirectional Buck/Boost circuit. The control strategy involves dynamically managing the supercapacitor charging and discharging power based on the generator output and load demand. This allows optimized energy flow and balancing in various operating modes to maximize wind resource utilization. The control method involves a sliding mode controller with a modified surface to improve stability and response compared to traditional PI controllers.
3. Wind Power Energy Storage System with Predictive Data-Driven Control and Coordination Mechanism
MAIN POWER BEIJING CO LTD, MAIN POWER CO LTD, 2024
Intelligent control and coordination method and system for wind power energy storage to maximize utilization efficiency and grid stability. The method involves collecting wind speed and grid demand data, predicting future demand, optimizing charging/discharging strategies based on predictions, adjusting turbine parameters based on environment, and coordinating storage with grid load. The goal is to dynamically optimize charging, discharging, and turbine operation in response to changing conditions for optimal energy capture and grid support.
4. Hybrid Supercapacitor-Battery Energy Storage Supervision System with Data-Driven Charge-Discharge Management
HEBEI GUOSHUN NEW ENERGY TECH GROUP CO LTD, HEBEI GUOSHUN NEW ENERGY TECHNOLOGY GROUP CO LTD, 2024
Integrated wind power and energy storage supervision system and method based on data analysis to optimize wind power stabilization while extending the life of energy storage systems. The system uses a hybrid storage module with both supercapacitors and batteries. It intelligently manages the charging and discharging of the storage system based on wind power generation and grid demand. The method involves determining if the storage is charging or discharging based on wind power excess or deficit over a time period. It also assigns weights to wind power levels to gradually change the balance between charging and discharging over time. This avoids frequent switching and extends battery life.
5. Wind Turbine Power Output Control Using Flywheels and Supercapacitors for Grid Frequency Regulation
GUONENG SIDA TECH CO LTD, GUONENG SIDA TECHNOLOGY CO LTD, 2023
Wind turbine energy storage control method to improve grid stability and wind power generation efficiency using flywheels and supercapacitors. The method involves monitoring the grid frequency and adjusting the wind turbine power output using the flywheel and supercapacitor storage. If grid frequency is low, the flywheel provides additional power. If grid frequency is high, the supercapacitor discharges excess wind power. This balances grid frequency and prevents instability. By actively managing wind turbine power with energy storage, it improves grid stability and utilizes wind energy more efficiently.
6. Wind Turbine Generator Set Control System with Integrated Energy Storage and Dynamic Energy Management
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD, 2023
Collaborative control of wind turbine generator sets with integrated energy storage systems to improve wind power stability and grid integration. The control method involves dynamically managing the energy storage device charging and discharging based on the wind turbine operating conditions and energy storage level. If the storage level is within a normal range, it charges/discharges to meet turbine needs. If outside, it adjusts based on the deviation. This allows optimizing storage use for turbine and storage needs. The method also coordinates turbine converters for voltage regulation, inertia, frequency support, and storage management.
7. Wind Farm with Integrated Electrolysis Units and Above-Sea-Level Hydrogen Export Manifold
Siemens Gamesa Renewable Energy A/S, 2023
A wind farm design with onsite hydrogen production and export to mitigate power fluctuations and avoid long-distance transmission costs. The wind turbines have electrolysis units to generate hydrogen using excess wind power. The hydrogen is exported via a shared above-sea-level manifold rather than subsea connections. This allows easier maintenance and prevents corrosion compared to underwater connections. The manifold connects the turbine hydrogen outputs to a common pipeline for transporting the hydrogen produced by the wind farm. This eliminates the need for individual subsea connections from each turbine. The manifold can be housed in a container or installed at the turbine platform or tower.
8. Control System for Grid-Connected Wind Turbines with Adaptive Energy Storage Management
SMART GRID RES INSTITUTE CO LTD OF STATE GRID, SMART GRID RESEARCH INSTITUTE CO LTD OF STATE GRID, STATE GRID HUBEI ELECTRIC POWER CO LTD, 2023
Control system and method for grid-connected wind turbines with energy storage to optimize power generation and grid stability. The system allows grid-connected wind turbines to provide grid inertia support while avoiding battery overcharge/discharge. When battery charge is normal, the storage unit provides inertia response. If battery charge is abnormal, the wind turbine itself absorbs/releases energy to maintain grid inertia. This prevents over/undercharging the battery while still enabling grid inertia support.
9. Wind Power Energy Storage Device with Grid-Responsive Power Routing and Curtailment Reduction Mechanism
SINOPEC GROUP CO LTD, SINOPEC STAR PETROLEUM CO LTD, SINOPEC XINXING BEIJING NEW ENERGY RES INSTITUTE CO LTD, 2023
Wind power energy storage device that mitigates intermittency and volatility of wind power generation by using an energy storage unit to store excess wind power when the grid doesn't need it. When wind power is high but grid demand is low, the device directs the wind turbine to send power to the storage unit instead of the grid. This allows the turbine to operate at full capacity even when grid demand is low, reducing curtailment. When the storage is full, the turbine disconnects from the grid to self-peak without exporting power. This improves wind power utilization and grid stability by smoothing out the turbine's output.
10. Wind Power Storage System with Adaptive Charging and Discharging Controller
HUANENG CLEAN ENERGY RES INSTITUTE, HUANENG CLEAN ENERGY RESEARCH INSTITUTE, HUANENG RENEWABLES CO LTD SHANXI BRANCH, 2023
A wind power storage system that optimizes wind energy harvesting by intelligently managing the storage module's charging and discharging. The system includes a wind turbine, an energy storage system, and a controller. The controller determines when to charge or discharge the storage based on real-time wind conditions. This prevents wasting generated wind power when the turbine is operating in high wind conditions. When winds are low, the controller discharges the stored energy to supplement the turbine output. This allows the storage system to intelligently optimize power flow between storage and turbine to maximize overall power generation.
11. Cluster-Based Energy Storage and Release System for Fluid Turbines Under Variable Conditions
Mark Daniel FARB, Jonathan Forbes, 2023
Controlling and coordinating operations of a cluster of fluid turbines to improve efficiency and compliance with grid requirements under variable fluid conditions. The method involves storing energy generated below grid threshold levels in a cluster of turbines instead of supplying it to the grid. When turbine output exceeds the grid threshold, the stored energy is released to supplement the grid supply. This allows turbines to continue generating power even in low fluid conditions that fall below grid requirements.
12. Wind Turbine System with Integrated Electrolysis Energy Conversion and Annular Battery Pack
CHINA PETROCHEMICAL TECH DEVELOPMENT CO, CHINA PETROCHEMICAL TECHNOLOGY DEVELOPMENT CO, 2023
Wind power generation system that balances output by directly converting wind energy into electrolysis energy. The system uses a wind turbine, generator, and battery pack. During low wind, the turbine only charges the battery. During high wind, the turbine charges the battery and generates power. This avoids overproduction. The battery pack has an annular shape with cathode and anode chambers separated by a diaphragm. The rotating turbine shaft drives the chambers, generating induced currents between the batteries. This converts wind energy into electrolysis energy without extra converters.
13. Wind Turbine-Integrated Energy Storage System with Tower-Mounted Battery Pack and Inverter
XIAN THERMAL POWER RES INSTITUTE CO LTD, XIAN THERMAL POWER RESEARCH INSTITUTE CO LTD, 2023
Compact energy storage system integrated into wind turbines to address intermittency issues of wind power generation. The system uses the wind turbine structure itself to store excess electricity generated during high winds. It involves installing a battery pack, inverter, and cabinet on the tower. When wind speeds exceed turbine capacity, the inverter diverts excess power to the battery instead of wasting it. During low winds, the battery provides supplementary power to the grid. The battery pack is charged/discharged using a small inverter that adapts voltage to prevent damage to the battery modules. This allows efficient energy storage and release within the turbine, avoiding separate storage units and transmission losses.
14. Kinetic Energy Conversion System with Rotating Wind Sail and Linear Path Piston Mechanism
Moshe NIZRAD, Alon POLAD, Sarit ROMEM, 2023
Clean electricity generation system using kinetic energy conversion. The system has a wind sail and mast that rotates around a fixed axis when wind blows. A piston device with a movable weight connected to the mast rotates along a linear path. The mast rotation moves the weight back and forth. Gravity pulls the weight back. This reciprocal motion pumps fluid in a piston. The pumped fluid is stored and later converted to electricity. The limited rotation span and angular path allows faster piston motion.
15. Wind-Solar Hybrid Power System with Controller and Energy Storage for Voltage Stabilization
BEIJING INSTITUTE OF TECHNOLOGY, BEIJING INSTITUTE TECH, 2023
Intelligent wind-solar hybrid power supply system that provides stable and safe power to loads from intermittent wind and solar sources. The system uses a controller, energy storage module, and both wind and solar power generation. The controller converts the unstable wind and solar output into stable voltage for loads. It charges and discharges the storage based on weather, load, and generation. This balances supply/demand, regulates energy, and ensures safe load power from variable sources.
16. Wind-Driven Water Pumping and Gravity-Fed Hydroelectric Generation System with Short Covered Turbines and Auxiliary Pump
David William Stauffer, 2023
Using wind power to pump water up to a tank, then releasing it to turn hydroelectric generators continuously, even when the wind stops. The invention addresses the intermittency of wind power by storing water in a tank when there's wind, then using gravity to generate electricity continuously. An auxiliary pump powered by the hydro system can fill the tank if wind is low. The wind turbines themselves are shorter and covered to avoid bird strikes. Camouflage covers hide the turbines.
17. Wind Turbine with Integrated Hydrogen Generation and Storage System
Keith Charles Avery, 2023
Decoupled wind turbine that generates hydrogen gas on-site without connecting to the electrical grid. The turbine has an internal hydrogen generation system that allows it to produce hydrogen from wind power without needing grid electricity. The hydrogen is stored in pipes inside or outside the tower. This enables the turbine to operate in remote locations without grid access, converting intermittent wind energy into storable and transportable hydrogen fuel.
18. Radial Piston Hydraulic System with Integrated Reservoir and Pressure Tank for Wind Turbines
Robert D. Kline, 2023
Hydraulic system for wind turbines that replaces the mechanical gearbox with a hydraulic pump and motor. The hydraulic system provides a more compact, lightweight, and durable alternative to gearboxes that lasts longer and requires less maintenance. The system uses a radial piston pump with a multi-lobe concentric cam to convert the low speed rotation of the wind turbine blades into hydraulic energy. This hydraulic energy is then used to drive a hydraulic motor connected to the generator. The radial piston design allows a high number of large diameter pistons in a compact space. The cam produces multiple strokes per revolution to maximize output. The pump also integrates the reservoir and pressure tank into the body for a compact design.
19. Wind Turbine Backup Power System Utilizing Integrated Converter with Battery and Converter Units
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD, 2023
Backup power system for wind turbines that uses the converter of the turbine itself to provide backup power during grid outages. The system consists of a battery, DC/DC converter, DC/AC converter, and pre-charging unit. The battery is connected to the DC converters which charge the DC bus of the turbine converter. During grid outages, the DC/DC converter provides backup power to the turbine's control systems. The DC/AC converter powers the turbine loads. This leverages the existing turbine converter for energy storage to maintain critical systems and prevent failures during grid outages.
20. Hybrid Wind Power Generation System with Integrated Energy Storage and Dual-Side Control Mechanisms
XUJI ELECTRIC CO LTD, XUJI GROUP CO LTD, 2023
New energy power generation system with energy storage that has stable and reliable power output even when wind speeds fluctuate. The system uses a hybrid control approach with maximum power point tracking (MPPT) on the generator side and virtual synchronous control (VSC) on the grid side. An energy storage system is connected between the generator and grid. The MPPT extracts maximum power from the wind turbine regardless of wind speed, while the VSC simulates a synchronous generator to actively generate grid voltage. The storage system balances power fluctuations between the generator and grid. This allows stable power output even with variable wind speeds and grid loads.
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