Protection&Control Transmission Line Protection Busbar Protection Transformer Protection Circuit Breaker Protection Generator Protection Feeder Protection Capacitor Protection Motor Protection Transfer & Synchronization Arc Protection
Digital Substation PCS-221S Merging Unit PCS-221 Merging Unit PCS-222 Circuit Breaker Controller PCS-9250 AC Electronic CT/VT
Automation PCS-9700 Automation System PCS-9700 HMI Software PCS-9705 Bay Control Unit PCS-9705S Bay Control Unit PCS-9799 Station Manager PCS-9799S Station Manager PCS-9710 Remote Terminal Unit PCS-9710S Remote Terminal Unit PCS-9794 Protocol Converter PCS-9785 Satellite-Synchronized Clock PCS-9882 Ethernet Switch PCS-9882Rx DIN Rail Managed Ethernet Switch PCS-9882XD Managed Ethernet Switch PCS-9884 Managed Ethernet Switch Supporting HSR and PRP MUX-2M/64 Communication Interface
Phasor Measurement PCS-997S Fault Line Locator PCS-996S-G Phasor Data Concentrator PCS-996 Phasor Measurement Unit
Disturbance Fault Recording PCS-996RC Disturbance Fault Recorder PCS-996R Disturbance Fault Recorder PCS-986 Disturbance Fault Recorder PCS-9013 DFR Management System
Stability Control System PCS-992 Power Stability Control System PCS-993 Out-of-Step Controller PCS-994 Frequency & Voltage Controller PCS-994S Frequency and Voltage Controller
Power Grid Monitoring and Control PCS-9000 Energy Management System PCS-9000 Distribution Management System
Configuration Tool PCS-Torch MOT Tool PCS-Studio Configuration Tool PCS-Explorer IED Configuration & Debugging Tool PCS-SCD Configuration Tool PCS-COMM Configuration & Debugging Tool
Accessories MD1501 Series Auxiliary Relays MD1701 Series Test Blocks MD1701S Test Block
FACTS PCS-9580 Static Var Compensator PCS-9583 Static Synchronous Compensator PCS-9570 Series Compensation PCS-9590 DC De-Icer PCS-9578 Controllable Shunt Reactor PCS-8200 Unified Power Flow Controller PCS-9571 Fault Current Limiter PCS-9564A Dynamic Voltage Restorer PCS-9569 Shore Power System
HVDC PCS-8600 UHVDC Converter Valve System PCS-9550 LCC-HVDC Control and Protection System PCS-8100 VSC-HVDC IGBT Valve PCS-9520 VSC-HVDC Control and Protection System PCS-9510 Cooling System PCS-8300 High-voltage DC Circuit Breaker PCS-9250 DC Electronic CT/VT
PV & Wind Power Grid-Connection PCS-9700 Renewable Energy SCADA PCS-9726 Generation Management Unit PCS-9700F Power Forecast System PCS-9700R AGC/AVC
Battery Energy Storage System PCS-9567TU-1000/1250/1375/1575/1750 1500V Series Outdoor Power Conversion System PCS-8811CB Centralized energy storage system PCS-8812PB Liquid cooled energy storage cabinet PCS-8813CPB High voltage directly connected energy storage system PCS-9567A Power Conversion System PCS-9567C BESS Control Unit PCS-9700 Energy Storage System
Microgrid PCS-9617MG Microgrid Controller
Static Frequency Converter PCS-9575 Static Frequency Converter
Protection,Automation&Control DMS EMS Stability Control & WAMS Digital Substation
HVDC & FACTS De-Icing Unified Power Flow Controller (UPFC) Series Compensation Static Synchronous Compensator(STATCOM) Static Var Compensator (SVC) LCC-HVDC Transmission VSC-HVDC Transmission
Renewable & Microgrid Energy Storage System Microgrid PV Generation SFC
Power Generation Pumped Storage Power Plant Nuclear Power Plant Hydro Power Plant Thermal Power Plant
Transmission System AC Transmission LCC-HVDC Transmission VSC-HVDC Transmission
Distribution System Distribution Network
Industrial Consumer Urban Track Traffic Electrified Railway Oil & Petrochemical Metals & Mining
On June 29, 2023, 2 × 150Mvar STATCOM in the Guangdong Shenzhen 500kV Pengcheng substation and 2 × 150Mvar STATCOM in ± 800kV Dongfang Converter Station , which was supplied by NR，were officially put into operation. These series of projects is a key project for Southern Power Grid to prevent system operational risks. It will enhance the transient voltage stability in Shenzhen, increase load margin in Shenzhen, improve the operating environment of Xindong DC and Xing'an DC, and reduce the risk of continuous commutation failure.
The STATCOM delivered by the project has the largest single unit capacity in China, with a capacity of 150Mvar. NR provides complete equipment including converter valves, valve cooling, protection & control systems, etc.
The STATCOM of Dongfang Converter Station has designed an adaptive collaborative control strategy for reactive power and voltage with the DC system, which can automatically adapt to the control mode of the DC system. Propose a steady-state reactive power reserve control mode to enhance transient reactive power output capability, and strengthen support voltage in case of DC commutation failure, thereby reducing the risk of continuous commutation failure. The project also innovatively proposed a coordinated control strategy for reactive power support and active filtering, taking into account the needs of transient voltage support and steady-state filtering. The active filtering function is the first to be implemented in the large capacity STATCOM of the Southern Power Grid, which is technically challenging and effectively reduces the harmonic voltage and current levels of the main network in Shenzhen.
In recent years, NR has been committed to the development and application of flexible AC transmission equipment, and has persisted in research & development investment to create highly reliable and high-quality equipment, which has been unanimously recognized by users. STATCOM products have been installed in more than 20 countries and regions. The widespread application of STATCOM has made the power system more stable and efficient, meeting the development requirements of future power systems dominated by renewable energy. The smooth operation of this project reflects the technical level and delivery ability of NR as an international leading supplier of flexible AC tranmission system solutions. NR will continue to contribute to improving the stability of power system with innovative technology and high-quality services.