Base load power plant

About: Base load power plant is a research topic. Over the lifetime, 6121 publications have been published within this topic receiving 96788 citations.

Impact of wind power in isolated power systems

Abstract: Weak power grids with DG penetration show poor power quality, protection issues and frequency deviations under severe disturbances, especially in isolated networks. This paper explores the impact of wind power in weak isolated power systems. A small size island power system has been modeled and the impact of wind power on system stability has been studied. Two main aspects have been covered: the impact on frequency stability and on transient stability, as well as fault-ride through capability of the wind turbines.

Pursuing Photovoltaic Cost-Effectiveness: Absolute Active Power Control Offers Hope in Single-Phase PV Systems

Abstract: Countries with a considerable number of photovoltaic (PV) installations are facing the challenge of overloading their power grid during peak power production hours if the power infrastructure remains the same. To address this, regulations have been imposed on PV systems to ensure that more active and flexible power control is performed. As an advanced control strategy, absolute active power control (AA PC) can effectively solve overloading issues by limiting the maximum possible PV power to a certain level (i.e., the power limitation) and can also benefit the inverter reliability because of the reduced thermal loading of the power devices. However, its feasibility is challenged by the associated energy losses. An increase in the inverter lifetime and a reduction of the energy yield can alter the cost of energy, demanding an optimization of the power limitation. Therefore, aiming at minimizing the levelized cost of energy (LCOE), this article discusses how to optimize the power limit for the AA PC strategy.

Method of controlling load on power plant and load control system for carrying out the same

Abstract: The invention suppresses the production of thermal stress in power generating equipment and the unstable behavior of the power generating equipment due to the variation of system frequency and stabilizes the system frequency. A power plant load control system controls the operation of a power plant equipped with a gas turbine comprising a combustor ( 1 ) and a turbine ( 3 ), and a power generator ( 5 ) disposed coaxially with the turbine. The power plant load control system comprises a governor load control unit ( 100 ) for determining a governor instruction ( 103 d ) on the basis of the deviation of generated power ( 102 d ) from a power generation instruction ( 101 d ) given thereto by a central load dispatching station according to the variation of system frequency, and for determining a fuel supply rate instruction ( 107 d ) corresponding to a speed droop ratio (R) according to the deviation of shaft speed ( 104 d ) from a governor instruction ( 103 d ). The governor load control unit ( 100 ) has a fuel supply rate instruction limiter ( 107 ) for limiting the change rate of the fuel supply rate instruction ( 107 d ). The fuel supply rate instruction limiter ( 107 ) determines a limit to the change rate so that the production of thermal stress in the gas turbine and unstable combustion may be suppressed, and limits the variation of the fuel supply rate instruction ( 107 d ) to a range below the limit.

Application of wind power prediction tools for power system operations

Abstract: The wide use of wind energy in Germany results in a lot of new power system operation problems corresponding especially to the stochastic character of the wind speed and to the not controllable production of energy The significant amount of installed wind power in the German power system (currently more than 17 GW) make the traditional scheduling of the power generation for the next day very unsure Consequently the costs of the power system operation are high because of a large scale provision of spinning reserve power coming from the traditional power plants The decisive rule in the decreasing of these costs plays the exactness of the wind energy transformation modelling process which starts with the forecast of wind speed In Germany since more than ten years the knowledge how to solve this problem is available Based on more than 100 representative wind farm power measurements all over Germany very exact models for the determination of the current and expected wind power are developed The models are in operation at the control stations of the Transmission System Operators