Control of Power Inverters in Renewable Energy and Smart Grid Integration

This is a unique reference on the control of power inverters, (DC-AC conversion) providing an overview of conventional AC-DC-AC power conversion methodologies by an internationally recognised expert in the industry. The book provides highly accessible summary of the latest developments in power inverters, driven by the need to optimise grid integration of renewables. It also includes coverage of the author’s pioneering work on synchroconverters , which has gained EPRI and IET Highly Commended awards. The book consists of three parts: Part I (Power Quality Control), various control approaches to improve the power quality are covered. This includes the conventional PI control, proportional-resonant control and advancedrepetitive control. Several different strategies forrepetitive control, covering voltage control and current control, will be discussed. Part II (Neutral Line Provision), one topology and several control strategies are discussed to provide a neutral line for inverters. For inverters used in distributed generation and renewable energy, this is an important issue as the loads are often unbalanced and there is a need for a path for the neutral current. A detailed analysis is provided. Conventional control strategy as well as the advancedcontrol strategy using voltage control and current control will be used. Part III (Power Flow Control) discusses, various issues including synchronisation, regulation of real and reactive power, parallel operation and the recently developed award-winning synchronverter technology. Synchronverters are inverters that mimic synchronous generators. Example design and experimental results are provided for most of the control strategies, which practictioners will find very useful.