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# IET Renewable Power Generation

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Displaying Results 1 - 8 of 8
• ### Probabilistic evaluation of transient stability of a power system incorporating wind farms

Publication Year: 2010, Page(s):299 - 307
Cited by:  Papers (11)
| | PDF (484 KB)

This study presents a stochastic-based approach to evaluate the probabilistic transient stability indices of a power system incorporating wind farms (WFs). In this context, investigations have been conducted on a hypothetical test system representing a typical power system taking into consideration the uncertainties of the factors associated with the practical operation of a power system, namely f... View full abstract»

• ### Working towards frequency regulation with wind plants: Combined control approaches

Publication Year: 2010, Page(s):308 - 316
Cited by:  Papers (38)
| | PDF (621 KB)

A pitch angle controller and a rotor speed controller are proposed for wind plant output active power adjustment. Combining the turbine inertial control with pitch angle control provides a better outlook for long-term control. The control schemes are developed for wind generators to equip them with the capability to participate in restoring grid frequency after a disturbance. With the proposed con... View full abstract»

• ### Adaptive perturb and observe algorithm for photovoltaic maximum power point tracking

Publication Year: 2010, Page(s):317 - 328
Cited by:  Papers (75)  |  Patents (1)
| | PDF (771 KB)

The optimisation of energy generation in a photovoltaic (PV) system is necessary to let the PV cells operate at the maximum power point (MPP) corresponding to the maximum efficiency. Since the MPP varies, based on the irradiation and cell temperature, appropriate algorithms must be utilised to track the MPP. This is known as maximum power point tracking (MPPT). Different MPPT algorithms, each with... View full abstract»

• ### Integration of large-size photovoltaic systems into the distribution grids: a p-q chart approach to assess reactive support capability

Publication Year: 2010, Page(s):329 - 340
Cited by:  Papers (21)
| | PDF (658 KB)

This study addresses the issue of the control of both active (P) and reactive (Q) power flows injected by grid connected photovoltaic (PV) units participating in the provision of the reactive power compensation ancillary service. A model is derived allowing to define a sort of capability chart for the PV unit, that is, the set of points in the P-Q plane which, at steady state, can be reached by ... View full abstract»

• ### Wind energy conversion systems as active filters: Design and comparison of three control methods

Publication Year: 2010, Page(s):341 - 353
Cited by:  Papers (10)
| | PDF (1310 KB)

This work deals with the steady-state operation of wind energy conversion systems (WECSs) used simultaneously as active filters (AFs) and power generators. This application is motivated by the increasing number of non-linear loads (NLLs) on the power grid and by the possibility to offer an economical alternative to the installation of dedicated filters that sink the harmonic currents injected by s... View full abstract»

• ### Simple and high-efficiency photovoltaic system under non-uniform operating conditions

Publication Year: 2010, Page(s):354 - 368
Cited by:  Papers (9)
| | PDF (2510 KB)

The interest in improving the efficiency of photovoltaic (PV) system has emerged because of increasing the number of home-based or small-scale PV power system. However, the home-based PV system is vulnerable to the non-uniform operating conditions. Under such circumstances, multiple-local maximum power points (MPPs) occur on the power-voltage characteristics and an advanced control algorithm is re... View full abstract»

• ### Supporting high penetrations of renewable generation via implementation of real-time electricity pricing and demand response

Publication Year: 2010, Page(s):369 - 382
Cited by:  Papers (67)
| | PDF (960 KB)

The rollout of smart meters raises the prospect that domestic customer electrical demand can be responsive to changes in supply capacity. Such responsive demand will become increasingly relevant in electrical power systems, as the proportion of weather-dependent renewable generation increases, due to the difficulty and expense of storing electrical energy. One method of providing response is to al... View full abstract»

• ### Self-excitation and control of an induction generator in a stand-alone wind energy conversion system

Publication Year: 2010, Page(s):383 - 393
Cited by:  Papers (6)
| | PDF (630 KB)

This study presents a rugged and cost-effective scheme for start-up and operation of a stand-alone squirrel cage induction machine (SCIG) for a wind energy conversion system (WECS). A voltage source converter (VSC) directly interfaces the SCIG with an equivalent dc load network, which could also be the DC link of an inverter. The VSC dc bus is supported by an electrolytic capacitor and the propose... View full abstract»

## Aims & Scope

IET Renewable Power Generation brings together the topics of renewable energy technology, power generation and systems integration.

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