Integration, placement, and control of power conditioning devices in distributed generation networks

The integration of power conditioning devices, such as active power filters (APFs) in distributed generation (DG) networks, is critical for maintaining power quality and grid stability, particularly as the penetration of distributed energy resources increases. This chapter explores the optimal placement, integration, and control of such devices, mainly shunt APF and unified power quality conditioner (UPQC) in DG networks, focusing on their role in harmonic compensation, reactive power management, and voltage regulation. A systematic review of advanced control strategies, including cooperative control, droop-based techniques, and optimization algorithms, is presented to evaluate their effectiveness in mitigating nonlinear distortions, improving synchronization, and balancing power flow in active distribution networks. The discussion includes a comparative analysis of sensor placement, its impact on APF performance, and the bidirectional power flow behavior in DG-integrated systems. By addressing key technical and operational challenges, this chapter provides a comprehensive framework for the strategic deployment and intelligent control of APFs in DG networks to ensure efficient, stable, and resilient power systems.