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Renewable Energy

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Plant and Substation System Integration

SIFANG provides a wide range of comprehensive products, systems, solutions, and services to optimize the performance and reliability of renewable energy plants, particularly those using wind, solar, and energy storage technologies. These solutions cater to applications ranging from residential rooftops to commercial and utility-scale projects. SIFANG has assisted numerous clients in constructing highly efficient and grid-friendly renewable energy plants. Additionally, SIFANG provides a complete automation solution that ensures the operational stability and reliability of the power plant throughout its life cycle. Based on a deep understanding of grid, SIFANG's automation solution ensures stability in power, voltage, and frequency at the point of interconnection with the grid. This helps clients meet and comply with grid-connection requirements. The all-in-one solution includes a range of components such as: protection, BCU/RTU, fault recorder, step-up substation and plant SCADA.

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Plant Automation

SIFANG integrates control, protection, and other IEDs, utilizing an unified hardware-software platform to build a comprehensive automation-electrical integrated solution for hydropower plants that meets the requirements of "unmanned operations and minimized staffing maintenance." The solution covers SCADA, auxiliary control, protection, excitation systems, stability control systems, digital twins, and simulation systems.

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Plant Generation Control

This advanced renewable energy plant generation control system ensures optimal energy output while enhancing grid stability across public utility networks. Engineered for global grid compliance, the solution features rapid and precise regulation of voltage, reactive/active power, and power factor at grid interconnection points. Designed for modern energy infrastructures, it enables utility-scale solar, wind, and storage facilities to maintain competitive performance in dynamic energy markets.

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Reactive Power Compensation and Power Quality Improvement

The GSC series SVG (Static Var Generator) by SIFANG. is a cutting-edge dynamic reactive power compensation device. The core of the system utilizes a mature cascaded structure from the power electronics converter domain. Each phase consists of multiple compact and standardized power units connected in series. Built on the company’s unified software and hardware control platform—proven in over ten thousand successful applications—the GSC series SVG delivers exceptional functionality, outstanding performance, and advanced control strategies. The GSC series SVG effectively mitigates voltage fluctuations, power factor instability, and harmonic distortions caused by the intermittent nature of wind and solar power generation, ensuring grid compliance and system reliability.

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Simulation and Training/Digital Twin

A full-scope simulation system, modeled on real-world renewable energy (wind, solar, energy storage) equipment and systems, provides comprehensive training in renewable energy plant operations, fault handling, and maintenance. The renewable energy digital twin system adheres to the principles of "visualization, panoramic integration, and intelligence", enabling panoramic monitoring, real-time perception, autonomous inspection, health assessment, risk prediction, and remote interaction of equipment. This enhances renewable energy plants' risk prevention capabilities and refined, lean operation and maintenance practices.

Conventional Energy

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Protection and Automation for Plant

The protection and automation for plant solution adopts NCS and ECS to manage all the electrical equipment in the plant, enabling intelligent equipment management and optimized data analysis. It can evaluate the health status of the step-up substation, plant auxiliary power supply, and power generation equipment, promptly detect potential defects in power generation equipment, ensure the stable operation of power generation equipment, and improve the safe and stable operation level of the power generation system.

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Hydropower Plant Automation

SIFANG integrates control, protection, and other IEDs, utilizing an unified hardware-software platform to build a comprehensive automation-electrical integrated solution for hydropower plants that meets the requirements of "unmanned operations and minimized staffing maintenance." The solution covers SCADA, auxiliary control, protection, excitation systems, stability control systems, digital twins, and simulation systems.

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Simulation and Training/Digital Twin

The system can accurately simulate the entire production process of thermal power units, including normal operations, abnormal condition handling, and fault configuration. It provides mature solutions and proven track records for units of different capacities and control systems. It is used for training, assessment, and skill evaluation of power plant operators, technical personnel, and management staff, and supports group competitions and technical skill contests. The thermal power simulation solutions have been deployed in nearly 400 projects (including 20 overseas projects).

Transmission

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Energy Management System

Dispatch automation is the core technical means of power system operation and management, which integrates advanced computer technology, communication technology, and control technology to achieve real-time monitoring, analysis, and optimization control of the power system operation status. Based on over 30 years of experience in the power system, SIFANG can provide core products such as EMS master stations and substation RTUs for power companies. At the same time, it integrates the overall dispatch automation solution of the power communication system to meet the requirements of integrated control, clean energy management, power grid analysis, etc., and improve the safety, economy, quality, and environmental protection operation level of the power grid.

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Digital Substation

In digital substations, which enable real-time data exchange of voltage, current, and status information among IEDs via SV and GOOSE protocols, there is a growing trend of substations into process and station levels. Interface IEDs, such as SCUs and MUs, traditionally responsible for managing binary and analog data with primary equipment, are now installed directly in the yard. This shift offers multiple benefits, including reduced cabling, lower civil infrastructure costs, simplified installation, and improved safety, especially when using fiber optic technology. SIFANG digital substation solution provides flexible data acquisition methods—via hardwire, GOOSE, or SV—and supports diverse time synchronization techniques, including SNTP, IRIG-B, and IEEE1588. The solution also includes a comprehensive range of protection relays, BCUs, network analyzer and NDMEs.

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Protection Management System

SIFANG Protection Management System (PMS) collects and integrates the operation information and fault-related information of protection equipment in real time and conducts centralized analysis to achieve functions such as online monitoring of protection equipment, precise fault analysis, classified statistics of alarm information, intelligent inspection, ledger management, comprehensive report integration, etc. When the power grid operates normally, the system monitors and manages secondary equipment online; when there is a power grid fault, it provides information support and decision-making reference for handling power grid accidents.

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Simulation and Training/Digital Twin

The substation simulation training system comprehensively simulates the entire operational workflow of substation by integrating equipment algorithms with power grid dynamic calculation programs. It enables full-scope training and assessment on power grid/substation primary & secondary equipment cognition, operation maintenance, and fault handling. Utilizing advanced 3D visualization rendering technology, the system provides users with immersive hands-on operational experiences. It also supports substation design optimization and rational decision-making through simulation-based analysis.

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Grid Security and Stability Control System

Grid Security and Stability Control Devices Control equipment installed in power plants or substations to ensure power system stability under major disturbances. These devices perform functions such as generator tripping, load shedding, rapid power reduction, and emergency DC power adjustment, serving as critical components of the second defense line for grid security. Comprising input/output modules, communication interfaces, measurement units, fault detection logic, and control strategy modules.

Distribution

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Advanced Distribution Automation System (ADMS)

The distribution network, as a key network connecting the transmission network and electricity customers, has a complex structure, wide coverage, numerous and dispersed users. With the continuous integration of distributed power sources and flexible loads, issues such as bidirectional power flow and random source load pose challenges to the stability, protection strategies, and voltage control of the distribution network. To address these issues, SIFANG has launched advanced distribution automation solutions. This solution covers products such as distribution master stations, intelligent terminals, and intelligent switches, and integrates distribution communication systems to provide intelligent turnkey engineering services for power companies in the distribution network.

Microgrid

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Residential Microgrid

Residential microgrid systems are typically off-grid systems composed of loads, distributed energy resources, energy storage devices, diesel generators, etc., widely deployed for power supply in islands and remote villages. Through coordinated control systems, they achieve dynamic power balance among sources, loads, and storage, enabling stable microgrid operation with maintained frequency and voltage. SIFANG provides safe, stable, and reliable solutions for residential microgrid, including microgrid central controller, monitoring & energy management system (EMS), energy storage system.

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Industrial Microgrid

The Industrial Microgrid System is a distributed energy system specifically designed for high-energy-consumption scenarios such as industrial plants and mining areas. By integrating photovoltaic (PV) systems, energy storage systems, diesel generators, and load control devices, it establishes a "generation-grid-load-storage" integrated energy network. This system dynamically coordinates renewable and conventional energy sources to ensure 24/7 uninterrupted power supply for critical production processes, enabling autonomous energy regulation and ultra-high efficiency utilization. SIFANG delivers secure, stable, and reliable solutions for industrial park microgrids, including microgrid central controller (MGCC), monitoring & energy management system (EMS), energy storage system.

Industry

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Power Supply and Utilization for Industrial Plant

The integrated intelligent control system tailors a smart power supply and consumption solution for enterprises according to the characteristics of their power supply and consumption systems. It includes plant level automation systems, substation automation, protection systems, power electronics reactive power compensation products, power simulation training products, MV and LV switchgear products, etc. The entire solutions cover a complete range of product types, encompassing all aspects of protection and control in the enterprise's power supply and consumption system.

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Railway and Subway Protection & Automation

This solution applies to power supply systems for metros, trams, railways, and similar scenarios. It includes: Railway Power System Intelligent O&M System Railway Power System Monitoring System Railway AC/DC Protection PQSS Power Quality Supervision System Railway Power System Dispatching System Traction Substation Automation System Railway Remote Terminal Unit (RTU) The solution provides a modern operational management platform for rail transit power system, enabling networked, automated, and scientific operation management to enhance power stability and ensure safer, more reliable system performance.

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Reactive Power Compensation and Power Quality Improvement

The GSC series SVG (Static Var Generator) by SIFANG. is a cutting-edge dynamic reactive power compensation device. The core of the system utilizes a mature cascaded structure from the power electronics converter domain. Each phase consists of multiple compact and standardized power units connected in series. Built on the company’s unified software and hardware control platform—proven in over ten thousand successful applications—the GSC series SVG delivers exceptional functionality, outstanding performance, and advanced control strategies. The GSC series SVG effectively mitigates voltage fluctuations, power factor instability, and harmonic distortions caused by the intermittent nature of wind and solar power generation, ensuring grid compliance and system reliability.

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Isolated Grid

It applies to enterprises with high energy consumption and a large proportion of electricity costs, such as steel metallurgy, electrolytic aluminum, industrial silicon, data centers, and papermaking. It also applies to enterprises located in remote areas that cannot rely on the public power grid for power supply. By using the enterprises' self-owned power plants to supply power to production loads, enterprises can achieve self-generation and self-consumption of electricity, realize the circular utilization of energy, and ensure the safe and stable operation of the power grid. It is also applicable to key production safety enterprises like those in the petrochemical industry, which have high requirements for the safety and continuity of production power supply. When the enterprise power grid is disconnected from the public power grid, the self-owned power plants can be used to drive important loads to continue operating, thus ensuring the safe production of the enterprises.

Energy Storage

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Commercial Storage System

In response to issues such as the mismatch between user-side electricity load demand and electricity pricing, unstable grid power supply, and unmet power quality requirements, Sifang proposes a user-side energy storage solution. This solution enables peak shaving and valley filling, enhances power supply reliability and stability, and meets the diverse electricity needs of different commercial and industrial users.

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Utility Storage System

To address the issues of randomness and volatility in renewable energy generation, as well as insufficient frequency and voltage support in the new power system, we propose high-voltage cascading and low-voltage paralleling energy storage system solutions. These solutions offer excellent load regulation performance and high-efficiency energy storage, enhancing the grid's capacity to absorb renewable energy and improving the safe and stable operation of power systems.

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Combined Thermal Power and BESS Frequency Regulation

Traditional thermal power units exhibit slow adjustment speeds, long response times, and low regulation accuracy in frequency regulation. Moreover, frequency regulation increases thermal power unit losses, reduces operational efficiency, and frequently participating in frequency regulation shortens unit lifespan. SIFANG's combined thermal power and BESS frequency regulation solution effectively alleviates the frequency regulation burden on thermal power units, enhances their frequency regulation capabilities, and helps improve the AGC frequency regulation comprehensive performance index by over 40%, with a more than 75% increase in frequency regulation mileage, significantly boosting frequency regulation revenue.

FACTS

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STATCOM

The GSC series SVG (Static Var Generator) by SIFANG. is a cutting-edge dynamic reactive power compensation device. The core of the system utilizes a mature cascaded structure from the power electronics converter domain. Each phase consists of multiple compact and standardized power units connected in series. Built on the company’s unified software and hardware control platform—proven in over ten thousand successful applications—the GSC series SVG delivers exceptional functionality, outstanding performance, and advanced control strategies. The GSC series SVG effectively mitigates voltage fluctuations, power factor instability, and harmonic distortions caused by the intermittent nature of wind and solar power generation, ensuring grid compliance and system reliability.

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Grid-Forming BESS

With the integration of a high proportion of new energy sources and power-electronic devices, the power system experiences a reduction in inertia, a weakening of system strength, and a decline in the support and regulation capabilities of frequency and voltage, leading to increasingly severe stability issues. Constructing an energy storage converter with the characteristics of a voltage source, centered around the grid-forming technology, enhancing the stability of the power system. The grid-forming energy storage system is suitable for scenarios such as the grid connection and islanded operation of new energy in desert, gobi and wasteland areas.