Active Power Control

          According to the requirements of the "State Grid Corporation Technical Regulations for Grid Connection of Photovoltaic Power Stations," large and medium-sized photovoltaic power stations should have active power regulation capabilities and be able to 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 power control signals sent by the grid dispatch department. It should automatically adjust the active power output of the power station 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, but they may accept situations where the rate of decrease in output power exceeds the maximum change rate due to rapid reductions in solar irradiance.

Voltage/Reactive Power Regulation

        According to the requirements of the "State Grid Corporation Technical Regulations for Grid Connection of Photovoltaic Power Stations," 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 set of continuously adjustable 4Mvar SVG-type reactive power compensation devices, with an adjustment range of -4Mvar to +4Mvar, is installed on the 35kV bus side of the switch station. This reactive power compensation device enables dynamic continuous adjustment to control the grid connection point voltage and meet grid voltage fluctuation requirements. It also has filtering functionality to satisfy the grid's requirements for power supply quality.

        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 in different regions, of different types, and scales. Additionally, based on industry characteristics, customer needs, its own business strategies, and years of industry experience, the company offers digitalized, 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