Collect 10kV bus voltage

10kV bus voltage can be collected using voltage sampling points at the bus and distribution transformer outlets, combined with automated data acquisition and control systems.Voltage Collection in AC Distribution SystemsIn substations, 10kV bus voltage is typically measured using voltage sampling points installed directly on the bus and at several representative public distribution transformer outlets . The process involves:Setting Voltage Sampling Points: Install sensors at the 10kV bus and at key distribution transformer outlets along the 10kV line.Data Acquisition: Use a dispatch automation system to collect real-time voltage data from the bus, while a power consumption information system collects voltage data from the transformer outlets.Voltage Modeling: Generate a transmission transformation voltage model that accounts for transformer tap settings and the distance between the bus and each sampling point.Voltage Adjustment: Compare the measured outlet voltages with standard ranges (e.g., 198–235.4V for 220V single-phase supply) and adjust the 10kV bus voltage through the automation system to ensure compliance.Model Correction: Continuously refine the voltage model until the outlet voltages meet standard requirements . This method ensures that bus voltage remains within the qualified range (10–10.7kV) while preventing overvoltage at low-voltage users.Optimization TechniquesAdvanced methods optimize the 10kV bus voltage to improve the voltage qualification rate of the distribution network. This involves:Determining a reference day for voltage calculations.Analyzing the proportion of normal, overvoltage, and undervoltage occurrences in the network.Generating a target 10kV bus voltage for the calculation period to maximize compliance and minimize regulation costs .DC Bus Voltage Collection in MicrogridsFor 10kV DC microgrids, such as off-grid wind–solar–hydrogen systems, bus voltage collection and control involve:Modeling each energy source (wind, PV, fuel cells, batteries) and their converters.Using hybrid energy storage and controllable loads to stabilize voltage.Implementing advanced control strategies like extended state observers (ESO) and adaptive backstepping to compensate for nonlinearities and load fluctuations.Employing adaptive fuzzy control on loads to maintain DC bus voltage stability . This approach reduces voltage fluctuations, improves system stability, and enhances energy utilization efficiency.SummaryCollecting 10kV bus voltage involves strategically placed voltage sensors, automated data acquisition, and modeling to ensure voltage compliance. In AC systems, it focuses on maintaining proper outlet voltages for end users, while in DC microgrids, it emphasizes stability and coordination among distributed energy resources. Optimization and advanced control strategies further enhance voltage quality and reliability in modern power systems .