Technical Advantages
High-Speed Electromagnetic Bearing Technology
Suspending the rotor in space using electromagnetic force enables non-contact support between rotor and stator, representing a near-ideal rotor support solution for high-speed rotating equipment such as high-speed motors.
The rotor operates at high speeds with low losses and zero pollution, featuring adjustable stiffness for active and adaptive control, and actively suppressing internal vibration sources.
High-Speed Turbine Expansion Wheel Direct-Drive Permanent Magnet Generator Technology
This technology elevates isentropic efficiency to over 88%. Its high-speed, compact design adapts effectively to diverse operating conditions and applications. With fewer components, it simplifies operation and maintenance while enhancing utilisation rates.
The equipment features miniaturisation, skid-mounted design, high mobility, and compact installation footprint, facilitating transportation and construction.
Low-Temperature Heat Transfer High-Efficiency Heat Exchanger Technology
By investigating optimal evaporation pressure under varying operating parameters (including heat source inlet temperature and mass ratio of heat source fluid to working fluid), alongside maximum heat recovery efficiency techniques, the technology determines the working fluid flow rate that maximises overall heat recovery system efficiency.
Integrated High-Speed Permanent Magnet Generator and Converter Design Technology
Optimised generator parameter design. Incorporating PWM rectifier control algorithms into motor design addresses critical issues such as high generator harmonics and rotor heating from a system-level perspective.
High generation efficiency. Employing a dual-PWM converter-based AC-DC-AC frequency conversion system with full-power converter grid-connection technology enables maximum power capture control for expanders under varying operating conditions.
Reduced Grid Impact. Optimal capture power speed is achieved through rational converter control.
High Reliability and Stability. The full-power converter isolates the grid from the generator, facilitating fault ride-through capability for the low-temperature waste heat direct-drive generator system.
Economic Benefits
Following installation of this system, the owner can utilise waste heat resources that were previously released into the atmosphere, converting them into high-grade electrical energy for their own use. This reduces electricity expenditure, lowers the unit energy consumption of products, and enhances product competitiveness. Typically, the investment in this system can be recouped within three to five years.
Applicable Scope
Product Parameters
Keywords:XEMC
ORC Waste Heat Power Generation System
Classification：Products
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OUR PRODUCT
Distributed Phase-Shifting Machine
With the implementation of the new GB 38755-2019 Guidelines for Security and Stability of Power Systems, requirements for short-circuit capacity and inertial support at new-energy stations have risen sharply. Distributed synchronous condensers are thus set to become standard equipment at such stations. High-capacity synchronous condensers offer outstanding reactive-power compensation; their sub-transient characteristics keep the internal voltage practically constant during faults, allowing them to absorb or inject large amounts of reactive power instantaneously and thereby safeguard grid operation. In particular, as the country vigorously expands its new-energy power sector, the deployment of distributed synchronous condensers can effectively counteract current surges, frequency deviations, voltage fluctuations and flicker—mitigating the inherent volatility and intermittency of renewable-energy sources.
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Flywheel Energy Storage System
Flywheel energy storage constitutes a physical energy storage method, harnessing the kinetic energy inherent in a rotating body to store and release electrical energy. This conversion between kinetic and electrical energy is achieved via an electric motor/generator coaxially mounted with the flywheel assembly. When operating as a motor, the drive unit accelerates the flywheel rotor, converting input electrical energy into stored kinetic energy. When operating as a generator, the drive unit decelerates the flywheel rotor, converting stored kinetic energy back into electrical energy for output. The acceleration and deceleration of the drive unit are controlled by a dedicated control unit.
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·The QF and QFW series synchronous generators represent a range developed to high standards and specifications through the introduction, assimilation and adaptation of advanced motor manufacturing technologies from both domestic and international sources. This development draws upon our company's extensive design and manufacturing expertise accumulated over more than eighty years. ·This series of generators boasts significant advantages including rational design, compact structure, superior craftsmanship, reliable operation, ease of maintenance, and extended service life. They offer excellent compatibility with various prime movers such as steam turbines and gas turbines. They are widely applicable in energy-saving and environmentally friendly sectors including biomass power generation, waste heat and pressure power generation, natural gas or coal gas utilization power generation, and combined heat and power generation.
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WHY CHOOSE US
Technical research and innovation capability
XEMC is the enterprise in China that promotes the most efficient motor models and has the widest coverage. Since 2010, its promotion volume has consistently ranked first in the industry. The "ultra green" series of motor products developed by it have a motor efficiency of 96.91% and key technical indicators reaching the international leading level.
ONLINE MESSAGE
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No. 66 Diandian North Road, Yuetang District, Xiangtan City, Hunan Province
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