Research Article Wind Engineering 1–13 Ó The Author(s) 2019 Article reuse guidelines: sagepub.com/journals-permissions DOI: 10.1177/0309524X19868473 journals.sagepub.com/home/wie Joint operation between wind power generation and pumped hydro energy storage in the electricity market Jannet Jamii 1 , Dhaker Abbes 2 and Mohamed Faouzi Mimouni 1 Abstract Due to the variable nature of wind resources, the integration of wind power into electric power system has been a relevant issue. Recently, pumped hydro energy storage can be used to balance the unstable output of wind farm, as it can adjust its production to com- pensate wind power fluctuation. This article investigated the combination of a wind farm and a pumped hydro energy storage facility from the point of view of a generation company in a market environment. A joint operation model between the wind farm and pumped hydro energy storage is proposed. An algorithm of energy management system is proposed to identify the daily operational strategy to be followed in order to (1) minimize the penalty cost resulted from wind-pumped hydro energy storage output imbalances and (2) maximize the daily revenue profit taking into consideration all constraints of joint operation. Simulation results under MATLAB/ Simulink Ò environment are presented and discussed. Keywords Wind turbine, pumped hydro energy storage, energy management system, penalty cost, investment cost reservoir Introduction Renewable energy sources are becoming an important portion of the electricity generation in many countries. Particularly wind energy becomes one of the fastest growing renewable energy technologies in the world. However, integrating of high level of wind power generation presents a considerable challenge to power system operators and planners. It can adversely affect the reliability of power system and brings changes in power sys- tem operation procedures. Thus, the inclusion of energy storage system (ESS; batteries, flywheels, ultra-capaci- tors, pumped hydro energy storage (PHES), etc.) allows improving wind system’s stability and performances (Katiraei et al., 2008; Pan and Das, 2015). In the case of high wind penetration, the PHES is recognized as one of the most promising storages that faces wind energy’s fluctuation in a large scale. In addition, the PHES can improve the reliability of the power system, and due to their performance, the PHES benefits the grid operator to make more financial revenues. Management of electrical ESS is an important research topic, in particular, in combination with intermittence wind energy. In this case, there is a wide variety of works handling different methods in terms of modeling and energy management system (EMS) strategy of the joint operation of a wind farm and a PHES. Parastegari et al. (2013) analyzed the optimal scheduling of the joint operation and uncoordi- nated operation of a wind farm and a PHES and studied the ancillary service market. The scheduling problem is modeled by a stochastic optimization problem. The results show that the profit is increased with the joint opera- tion in comparison with their uncoordinated operation. Gao et al. (2018) dealt with an optimization model of a photovoltaic-wind-pumped storage system. An approach based on complementary objectives has been discussed 1 Laboratory of Automatic, Electrical System and Environment (LAS2E), National Engineering School of Monastir, Monastir, Tunisia 2 Laboratory of Electrical Engineering and Power Electronics (L2EP), HEI Yncrea HDF, Lille, France Corresponding author: Jannet Jamii, Laboratory of Automatic, Electrical System and Environment (LAS2E), National Engineering School of Monastir, Monastir 50000, Tunisia. Email: jannetjamii@gmail.com