Reactive Power Planning Using Optimal Placement & Control of DSTATCOM in a DG Integrated Industrial System

The presence of DG units in existing networks compared with conventional generators has created challenges. Hence, network standards make limitations. For this purpose, network standards do not allow the small DG, function properly in Low-Voltage Ride Through (LVRT). and in the presence of a fault, they will be disconnected from the network. Due to the fact that, lack of sufficient reactive power in the network will lead to slow voltage recovery, fault fixation and consequently disconnection of DGs from the network happens. This paper represents a method for optimal placement of capacitors and DSTATCOM in industrial distributing networks in the presence of DGs to provide reactive power required by the network in the steady state and providing dynamic reactive power (transient), and eventually helps combining DGs with network by considering authorized network restrictions. While, considering the high price of Custom Power such as DSTATCOM, it is required to implement efficient methods to use them in the network. As a result, the present paper proposes a method in order to determine DSTATCOM control parameters with the aim of fast voltage recovering, in order to obtain thorough economic benefits.