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Wide-Frequency Measurement Substation System
Applications

Applicable to new energy power plants, collector stations, new energy grid-connected substations of various voltage levels, and DC transmission hubs, enabling high-precision measurement of synchrophasors, harmonics, interharmonics, and oscillations.

System Composition

  • The wide-frequency measurement substation system consists of a wideband measurement device, data concentrator, and workstation.


  • The wideband measurement device is responsible for synchrophasor, harmonic, and oscillation detection, as well as functions such as event alarm, high-capacity waveform recording, and transient/steady-state measurement data recording.

  • The data concentrator includes communication and data aggregation functions, transmitting real-time data, alarm diagnostic results, and recorded files.

  • The workstation is responsible for the dynamic display of measurement and alarm data, as well as the spectrum analysis of recorded waveform data.


Functional Features
  • Secure and Controllable
    Fully localized design across the entire supply chain, with core technologies independently controllable, passing rigorous supply chain traceability certification.
  • High-Speed Sampling
    Based on 12.8KHz high-speed sampling, synchronously capturing fundamental, harmonic, and interharmonic signals, supporting in-depth spectrum analysis.
  • High-Precision Measurement
    Achieves high-precision detection of harmonics and interharmonics within 2500Hz, with real-time capture of low-frequency, sub/super-synchronous, and medium-high frequency oscillation data.
  • Large-Capacity Data Storage
    Supports 14-day dynamic recording of measurement data, high-sampling-rate transient waveform recording, and 72-hour continuous recording, with cyclic data storage to prevent loss.
Cases
  • Tianjin Huadian Binhai Hangu 48MW PV power station wideband harmonic dynamic monitoring system
  • Shandong Rizhao Wulian wind farm wideband harmonic and oscillation real-time monitoring project
  • Shandong Rizhao Port Lanshan Port Area decentralized wind power phase I project
  • Liaoning Dandong Huaneng Power Plant internal PV-hydrogen storage project
  • Guodian Shandong New Energy Juxian Wind Farm primary frequency regulation upgrade project
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