The dynamic voltage restorer BW-DVR can respond quickly to prevent voltage sags, swells, and provide continuous voltage regulation. Even when the voltage drops to zero, the dynamic voltage restorer BW-DVR can still support loads at 100% rated voltage with a response time of less than 2ms.
Response speed breaks through 2ms, achieving "zero-delay" voltage protection
Supercapacitors store energy directly through electrostatic fields, with no chemical reactions during charging and discharging, allowing energy release at the microsecond level. Leveraging this feature, BW-DVR strictly controls the response time within 2ms, enabling it to complete compensation actions the moment grid voltage sags or swells occur (even within the first waveform cycle before voltage disturbances affect the load). Compared with traditional energy storage-based DVRs (such as lithium battery DVRs with a typical response time of 5-10ms), it can more accurately "capture" voltage abnormalities, preventing any perceptible voltage fluctuations at the load end.
Full voltage support capability under extreme conditions, enabling full-load operation even at zero voltage
Supercapacitors have ultra-high power density (up to 1000-5000W/kg) and can release huge amounts of energy in a short time. Even if the grid voltage drops sharply to 0 (such as instantaneous power loss caused by line short circuits), BW-DVR can quickly discharge through supercapacitors and inject 100% rated voltage in series to the load. This ensures that the load continues to operate normally during short-term complete voltage interruptions (usually within a few seconds), a capability far exceeding that of battery-dependent DVRs (batteries have limited instantaneous high-power output capacity and struggle to support full loads under zero voltage).
High-frequency cycle life, adapting to scenarios with frequent grid disturbances
Grid voltage disturbances (such as motor start-stop, lightning flashover) may occur dozens of times a day. Traditional batteries experience rapid lifespan degradation under high-frequency charging and discharging (e.g., lithium batteries lose 50% of their capacity after 10,000 cycles). In contrast, supercapacitors have a cycle life of over 1 million times. Moreover, BW-DVR's compensation actions are mostly short-term (milliseconds to seconds) and shallow charge-discharge cycles, causing almost no loss to energy storage components. It can operate stably for more than 10 years in disturbance-intensive scenarios such as substations and industrial workshops, with nearly zero lifecycle maintenance costs.
Industrial manufacturing: Ensuring continuous operation of production lines
Applicable scenarios: Semiconductor wafer factories, electronic component production lines, automotive welding workshops, etc. Equipment in these scenarios (such as lithography machines, robots, precision machine tools) is sensitive to voltage; even a 10-millisecond voltage sag may cause equipment shutdown and product scrapping (the loss from a single lithography machine shutdown for 1 hour can reach hundreds of thousands of yuan).
Application value: DVR can quickly compensate for grid disturbances (such as voltage sags caused by nearby motor startups), ensuring continuous operation of production lines. For example, after deploying DVR in an automotive welding workshop, the number of shutdowns caused by voltage issues decreased by 90%, reducing annual losses by over 10 million yuan.
Data centers and communications industry: Maintaining stability of information systems
Applicable scenarios: Large data centers, 5G base stations, financial transaction systems, etc. Their servers, switches, and storage devices rely on stable voltage; voltage abnormalities may lead to data loss and communication interruptions (e.g., a 1-minute interruption in a financial transaction system may cause systemic risks).
Application value: DVR can resist voltage fluctuations caused by lightning strikes, short circuits, etc., ensuring uninterrupted operation of IT equipment. For example, after deploying DVR in a provincial-level data center, the equipment restart rate caused by voltage disturbances dropped from 5-8 times per month to zero, and system availability increased to 99.999%.
Medical and laboratory fields: Protecting precision instruments and life safety
Applicable scenarios: Hospital ICU wards, MRI rooms, biological laboratories, etc. Ventilators, MRI equipment, incubators, etc., have extremely high requirements for voltage stability; voltage abnormalities may endanger patients' lives or invalidate experimental data.
Application value: DVR can ensure the normal operation of medical equipment during grid fluctuations. For example, after deploying DVR in the ICU of a top tertiary hospital, it successfully withstood 3 grid voltage sags, avoiding the risk of ventilator shutdown.
Energy and transportation fields: Ensuring operation of key equipment
Applicable scenarios: Petrochemical compressors, pipeline pumps, rail transit signal systems, traction converters, etc. Power outages or voltage abnormalities in these devices may cause production interruptions and traffic delays (e.g., failures in subway signal systems may lead to line suspension).
Application value: DVR can compensate for voltage fluctuations caused by sudden load changes (such as motor start-stop, train current collection), ensuring stable equipment operation. For example, after deploying DVR in an oilfield oil pipeline pump station, the number of pump unit shutdowns caused by voltage issues decreased by 80%, and oil transportation efficiency increased by 15%.
Supporting "continuous operation" of industrial robots
Applicable scenarios: Automotive welding robots, logistics sorting robotic arms, etc. These devices rely on stable voltage to maintain motion accuracy; voltage sags can cause robotic arm jams and welding point deviations, resulting in product rework.
Application value: When factory grids experience voltage sags due to the startup of arc furnaces or stamping machines, BW-DVR quickly compensates for the missing voltage, ensuring stable voltage for robot joint motors and sensors, and preventing production line shutdowns due to equipment "out-of-sync".
