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PV & Wind Power Grid-Connection Battery Energy Storage System Microgrid Static Frequency Converter Generator Excitation
In recent years, renewable energy generation has become popular since it is clean, inexpensive and has low installation costs, especially where grid power is inconvenient or unreasonable expensive to connect. However, due to the intermittent and unstable characteristics of renewable energy, its grid connection may have an influence on the stability of grid operation. Based on the deep knowledge of electrical grids, NR introduces the integrated renewable grid-connection solution to address efficient ac/dc conversion, high power quality and smooth grid interconnection. In recent years, renewable energy generation has become popular since it is clean, inexpensive and has low installation costs, especially where grid power is inconvenient or unreasonable expensive to connect. However, due to the intermittent and unstable characteristics of renewable energy, its grid connection may have an influence on the stability of grid operation. Based on the deep knowledge of electrical grids, NR introduces the integrated renewable grid-connection solution to address efficient ac/dc conversion, high power quality and smooth grid interconnection.
PCS-9700 is a state-of-the-art automation solution for substations, power plants and industrial enterprises with many advanced technologies and patents. It can be applied for substations starting from distribution level up to extra high voltage level. It integrates the application of protection, control, Ethernet, IT and communication technology based on the international standard and it is fully compatible with IEC61850 standard. The system adopts the layered distributed architecture with bay-oriented and object-oriented structure, which is more reliable and easy to extend and mai…
More InfoThe PCS-9726A generation management unit is a protection, control and monitoring unit for the box-type transformer in a new energy substation (wind power, photovoltaic power etc.) on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. It also provides communication management function and ring-net switch function. This device is suitable for wall surface mounted indoors or outdoors or flush mounted into a control panel.This device can support protection function, metering function and communication management function. The binary inputs and outputs of …
More InfoThe power forecast system is used to predict the output power of renewable energy power station in an upcoming period. The system computes reliable forecast based on high accurate numerical weather prediction (NWP), with acquired site monitoring data, environment data and historical statistical data through the process of physical model and artificial neural network (ANN) model.NR Electric’s PCS-9700F power forecast system consists of two power forecast servers (main/standby), one weather data processor server, one WEB-based engineer workstation, one reverse isolation equipm…
More InfoNR Electric supplies Automatic Generation Control (AGC) and Automatic Voltage Control (AVC) optional advanced functions for renewable energy Stations.AGC is used to automatically maintain the system frequency or the power flow of interconnection lines within the target range. AGC operates based on the control of each generation unit in the farm dynamically and continuously. It regulates the power generation according to the entire plant power generation plan or strategies.AVC is realized by controlling the reactive compensators installed in the power plant. In the co…
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