Browsing SINTEF Open by Author "Kong, Jiehong"
Now showing items 1-11 of 11
-
A comparison of linear interpolation and spline interpolation for turbine efficiency curves in short-term hydropower scheduling problems
Skjelbred, Hans Ivar; Kong, Jiehong (Journal article; Peer reviewed, 2019)The purpose of short-term hydropower scheduling (STHS) in a competitive electricity market is to maximize the profit in the near future while adapting to the mid-term strategies for system operation. To ensure a realistic ... -
An overview on formulations and optimization methods for the unit-based short-term hydro scheduling problem
Kong, Jiehong; Skjelbred, Hans Ivar; Fosso, Olav B (Journal article; Peer reviewed, 2019)The short-term hydro scheduling (STHS) problem aims at determining the optimal power generation schedules for either a single hydropower plant or an integrated system of cascaded watercourses during a time horizon from a ... -
The challenge of a real, complex hybrid project
Nøvik, Hanne; Krogh, Espen; Stokke, Maria Kristina; Marstein, Erik Stensrud; Kong, Jiehong; Ramos, Daryl Homer (Chapter, 2023)This paper explores the implementation process of a hybrid power plant project (HyPP) in the Philippines' deregulated and complex energy market. SN Aboitiz Power (SNAP) owns and operates the Magat HyPP which involves ... -
Impact of energy pricing regimes on production schedules under solar-hydro hybridization
Kong, Jiehong; Sheppard, Alexandra Jane; Nøvik, Hanne; Engelstad, Øyvind; Fjelldal, Bjørnar; Klæboe, Gro; Skjelbred, Hans Ivar (Chapter; Peer reviewed, 2023)Hybridization of complementary energy production increases system flexibility and allows optimization of energy and resource availability. Hydropower and floating solar photovoltaics (FPV) have a high potential for ... -
Machine Learning for Hydropower Scheduling: State of the Art and Future Research Directions
Bordin, Chiara; Skjelbred, Hans Ivar; Kong, Jiehong; Yang, Zhirong (Peer reviewed; Journal article, 2020)This paper investigates and discusses the current and future role of machine learning (ML) within the hydropower sector. An overview of the main applications of ML in the field of hydropower operations is presented to show ... -
Operational hydropower scheduling with post-spot distribution of reserve obligations
Kong, Jiehong; Skjelbred, Hans Ivar (International Conference on the European Energy Market;2017, Chapter; Peer reviewed, 2017)As a reliable and flexible electric power source, hydropower can quickly adjust its generation level and provide reserve power to balance the power fluctuations in the system. In this paper, we assume that the day-ahead ... -
Operational Hydropower Simulation in Cascaded River Systems for Intraday Re-Planning
Skjelbred, Hans Ivar; Kong, Jiehong (Chapter; Peer reviewed, 2018)In this paper, we introduce an operational implementation of a hydropower simulator for cascaded river systems. It is presently used for decision support in the intraday re-planning by the largest hydropower producer in ... -
Operational use of marginal cost curves for hydropower plants as decision support in real-time balancing markets
Skjelbred, Hans Ivar; Kong, Jiehong; Larsen, Tellef Juell; Kristiansen, Fredd (International Conference on the European Energy Market;2017, Chapter; Peer reviewed, 2017)When participating in the real-time balancing markets, hydropower producers keep making decisions about how much power they are willing to sell or purchase at what prices from the markets. Due to the specific market ... -
Optimization of Offshore FPV Modules in Early Design Phase
Jin, Jingzhe; Zhang, Liqing; Lin, Zhiliang; Kong, Jiehong; Gao, Zhen (Chapter; Peer reviewed, 2024)Offshore Floating Photovoltaic (FPV) systems are gaining attention due to the high Technology Readiness Levels (TRL) of PV panels and offshore structures. Numerous offshore FPV design proposals exist, but none have yet met ... -
Short-term hydro scheduling of a variable speed pumped storage hydropower plant considering head loss in a shared penstock
Kong, Jiehong; Skjelbred, Hans Ivar; Abgottspon, Hubert (Journal article; Peer reviewed, 2019)In this paper we present in detail how to handle the nonlinear and state-dependent elements in the power consumption function (PCF) of a variable speed pump (VP). The function is formulated by piecewise linear approximations ... -
Using ProdRisk–SHOP Simulator for Investment Decisions of Solar and Hydro Hybridization
Kong, Jiehong; Rex, Stefan (International Conference on the European Energy Market;20, Chapter; Peer reviewed, 2024)This paper uses two scheduling tools to compare the economic performance and production outcomes of three investment alternatives in a Norwegian hydropower plant. The investment options considered are 1) Hybridization with ...