Active Power Control

According to the "State Grid Corporation Technical Regulations for Photovoltaic Power Station Grid Connection," large and medium-sized photovoltaic power stations must possess active power regulation capabilities and control their active power output based on instructions from the grid dispatch department. To achieve control over the active power of photovoltaic power stations, it is recommended that photovoltaic power stations install an active power control system. This system should be capable of receiving and automatically executing remote active output control signals from the grid dispatch department. It should automatically adjust the station's active power output based on signals such as grid frequency values and instructions from the grid dispatch department, ensuring that the maximum output power and power change rate of the photovoltaic power station do not exceed the given values set by the grid dispatch department. This helps maintain power system stability during grid faults and special operating conditions.

Large and medium-sized photovoltaic power stations should have the ability to limit the rate of change of output power. However, they may accept situations where the rate of power decline exceeds the maximum change rate due to rapid decreases in solar irradiance.

Voltage/Reactive Power Regulation

According to the "State Grid Corporation Technical Regulations for Photovoltaic Power Station Grid Connection," the power factor of large and medium-sized photovoltaic power stations should be continuously adjustable within the range of 0.95 (leading) to 0.95 (lagging). Based on system-specific calculations, a continuously adjustable 4 Mvar SVG-type reactive power compensation device is installed on the 35 kV bus side of the switch station, with an adjustment range of -4 Mvar to +4 Mvar. This reactive power compensation device enables dynamic continuous adjustment to control the grid connection point voltage and meet grid voltage fluctuation requirements. It also features filtering functionality to fulfill grid power quality standards.

Mangzhong Construction is an integrated "design + product + service" supplier based on technological research and development, supported by design optimization, system integration, and intelligent operation and maintenance services. At the same time, Mangzhong Construction emphasizes investment in technological research and development, building a professional system design team to provide technical design services and optimization for photovoltaic power generation systems of different regions, types, and scales. Additionally, based on industry characteristics, customer needs, its own business strategies, and years of industry experience, the company offers digital, customized, and professional one-stop solutions for photovoltaic power generation systems.

Company Name: Jiangsu Mangzhong Construction Co., Ltd.

Business Scope: Photovoltaic Power Station EPC, Solar Power Station Investment

Company Landline: 025-5888 3737   

Mobile Number: 159 5163 4545

Company Website: http://www.mangz.cn