Smart Manufacturing to Stabilize and Strengthen Power Grids | Wolong Unveils 50Mvar Distributed Condenser

Recently, the 50Mvar distributed condenser developed by Wolong Electric Nanyang Explosion Protection Group Co., Ltd. was officially unveiled in Nanyang, Henan Province. The launch event brought together leading experts from the China Machinery Industry Federation, the Large Motor Association, and the China Electrical Equipment Industry Association, as well as representatives from top power industry companies and university research institutes, to witness the debut of this new product.

A leader from the China Machinery Industry Federation announced the appraisal conclusion on site: After rigorous review and testing, the 50Mvar 2-pole distributed synchronous condenser developed by Wolong possesses independent intellectual property rights, with its overall technology reaching internationally advanced levels and meeting the conditions for promotion and application. The successful development of this product fulfills the urgent needs of new energy stations and weak grid areas, injecting robust "China Power" into the development of green energy.

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Against the backdrop of the in-depth implementation of the "Dual Carbon" strategy, the large-scale grid integration of new energy sources such as wind and solar power has become an industry trend. However, the intermittency, volatility, and randomness of new energy generation have led to common grid challenges, including insufficient transient voltage support, sluggish dynamic reactive power response, and weak system stability — issues that severely constrain new energy consumption and the safe and stable operation of the power grid. The deployment of distributed condensers precisely addresses these industry pain points.

As a type of synchronous motor operating under special conditions, the distributed condenser, when applied in power systems, can automatically increase reactive power output when grid voltage drops and absorb reactive power when grid voltage rises, thereby maintaining grid voltage and improving system power supply quality. It provides fast voltage regulation, wide-band oscillation suppression, and increased short-circuit ratio for new energy stations, acting as a "stabilizer" and "ballast" for new energy systems.

The complete condenser system features high integration and a well-structured architecture, encompassing the main condenser unit, lubrication system, cooling system, online monitoring system, step-up transformer, SFC system, excitation system, relay protection system, DCS, prefabricated cabin, and more. Wolong possesses a full-process, integrated technical capability, enabling us to provide customers with customized condenser turnkey solutions tailored to different grid scenarios.

Core Functions & Advantages

·       Steady-State Precise Voltage Regulation: Supports continuous and smooth adjustment of reactive power, capable of delivering or absorbing inductive reactive power as needed, enabling refined control of steady-state grid voltage and ensuring stable daily grid operation.

·       Transient Fast Anti-Disturbance: In the event of a sudden grid fault, it can instantaneously release a large amount of reactive power, effectively suppressing voltage sag magnitude and slowing down the voltage sag rate, thereby building an instantaneous safety defense for grid faults.

·       Temporary Strong Support: During the grid fault recovery phase, the excitation system can quickly activate the strong excitation function, continuously delivering reactive power support, accelerating grid voltage recovery, and shortening the system recovery period.

·       Short-Circuit Capacity Enhancement: Effectively increases the short-circuit ratio of the power system, strengthens grid architecture, and enhances system anti-disturbance capability and fault tolerance.

·       Millisecond-Level Inertia Response: In response to system frequency disturbances, the kinetic energy stored in the condenser rotor can be released without delay. Leveraging its excellent rotational inertia characteristics, it achieves ultra-fast dynamic response and accurately smooths frequency fluctuations.

Wan Chuangqi, Executive Director of Wolong Group and President of Wolong Electric, attended the launch event and indicated: "The successful development and launch of the 50Mvar distributed condenser is a significant achievement of Wolong's commitment to serving the nation through industry and deep dedication to technological innovation. It also reflects our responsibility to implement the national 'Dual Carbon' strategy and empower the construction of new power systems. Moreover, it is a solid result of the trust and empowerment from partners across various sectors. Looking ahead, Wolong will continue to focus on the core fields of power equipment, persist in technological upgrade and product innovation, and leverage high-end smart manufacturing to help ensure the safe and stable operation of power grids, safeguarding the high-quality development of China's green energy industry."