PSS/E based placement wind/PV hybrid system to improve stability of Iraqi grid

Abstract

<span lang="EN-US">Proper employment of Hybrid Wind/ PV system is often implemented near the load, and it is linked with the grid to study dynamic stability analysis. Generally, instability is because of sudden load demand variant and variant in renewable sources generation. As well as, weather variation creates several factors that affect the operation of the integrated hybrid system. So this paper introduces output result of a PV /wind via power electronic technique; DC chopper; that is linked to Iraqi power system to promote the facilitating achievement of Wind/ PV voltage. Moreover, PSS/E is used to study dynamic power stability for hybrid system which is attached to an effective region of Iraqi Network. The hybrid system is connected to Amara Old bus and fault bus is achieved to that bus and the stability results reflects that settling time after disturbance is not satisfactory. But, it is found that PV/wind generation system influences Iraqi grid stability to be better than that with only PV generation and the latter is better than stability of the grid that is enhanced with only wind generation. These results represent an important guideline for Iraqi power system planner.</span>

Comparative techno-economic analysis of power system with and without renewable energy sources

“…The main objective of the paper is to analyse the voltage stability of the test system and the price of power purchased from the grid [40]- [49]. In this section, the step-by-step procedure for evaluating the Techno-Economic analysis is presented.…”

Frequency response analysis under faults in weak power systems

“…Another disadvantage is that RESs connection to the EPSs is through converters, this produces decoupling between generator angular speed and network frequency, as occurs in several wind turbine applications [12]- [18]. Also, solar photovoltaic generation is static and do not store kinetic energy.…”

Comparing the Performances of MPPT Techniques for DC-DC Boost Converter in a PV System

“…Utilities around the world have been working hard in the past few decades to replace conventional generations with power from distributed energy resources to reduce cost, pollution, and other environmental problems caused by generators using fossil fuels. Among many, solar photovoltaic (PV) has become one of the leading power generation replacing old and costly conventional generation due to its cleanness, safety, long life, low maintenance, cheapness, and availability [1]. There are currently many standalone and grid-connected solar power plants functioning around the world.…”

“…A solar power plant can be interfaced with an AC microgrid or a large power system using DC/AC converters or DC loads/microgrid via DC/DC converters [1]. A typical configuration of a 3-phase gridconnected PV system is shown in Figure 1.…”