System frequency control by Heat Pump Water Heaters (HPWHs) on customer side based on statistical HPWH model in power system with a large penetration of renewable energy sources

2010 ◽  
Author(s):  
Taisuke Masuta ◽  
Akihiko Yokoyama ◽  
Yasuyuki Tada
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Heat Pump ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Water Heaters ◽  
System Frequency

Frequency Control Method using Automated Demand Response for Isolated Power System with Renewable Energy Sources

2017 ◽  
Vol 18 (5) ◽  
Author(s):  
Takahiro Uehara ◽  
Dang Ngoc Son ◽  
Hidehito Matayoshi ◽  
Mohamed Lotfy ◽  
Tomonobu Senju ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Demand Response ◽  
Control Method ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The Stability ◽  
System Frequency ◽  
Integrated Power System

AbstractIn response to mounting concerns regarding environmental problem and depletion of Energy Resources, the introduction of Renewable Energy Sources (RESs), has been advancing in recent years. The system frequency deviation is a serious problem for a RESs-integrated power system. In this paper, we propose a system frequency control method using the automated demand response (ADR) for an isolated power system with RESs. The ADR can automatically adjust the consumption power of appliances after receiving the DR signal. It is assumed that consumption power of controllable loads is automatically varied based on the electricity price information from the real-time pricing (RTP). This method improves the supply-demand balancing, and hence the system frequency control is achieved. Furthermore, the stability of controller is demonstrated by indicating the poles of the control system.

scholarly journals Load frequency control for renewable energy sources for isolated power system by introducing large scale PV and storage battery

2020 ◽  
Vol 6 ◽  
pp. 1597-1603
Author(s):  
Lei Liu ◽  
Tomonobu Senjyu ◽  
Takeyoshi Kato ◽  
Abdul Motin Howlader ◽  
Paras Mandal ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Large Scale ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Load Frequency Control ◽  
Energy Sources ◽  
Storage Battery ◽  
Load Frequency ◽  
And Storage

scholarly journals Evaluation Method for Penetration Limit of Renewable Energy Sources in Korean Power System

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4207
Author(s):  
Han Gwon ◽  
Woo Choi ◽  
Kyung Kook
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power System ◽  
Evaluation Method ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Total Power ◽  
Energy Sources ◽  
Primary Frequency

As Korea aims to increase the extent to which renewable energy sources (RES) account for up to 20% of the total power generated in the country by 2030, the feasibility of this target is a major concern. This concern largely results from the Korean power system possessing unique characteristics, such as its electrical isolation and high density. To achieve the RES target, the reliable operation of the power system must coexist with an increased share of RES power generation. This study proposes a method to evaluate the penetration limit of RES in the Korean power system considering the existing plans for the long-term electricity supply and demand, as well as its operational requirements. The Korea electric power corporation (KEPCO) planning database of the Korean power system for the next 15 years was employed to determine the penetration limit of RES considering the reliability criteria, including the minimum power generation of conventional sources, primary frequency control requirement, 10-min reserve requirement, and frequency stability.

Grid Stabilization with Decentralized Controllable Loads using Fuzzy Control and Droop Characteristics

2014 ◽  
Vol 15 (4) ◽  
pp. 357-365 ◽  
Author(s):  
Michael Palmer ◽  
Masato Tachibana ◽  
Tomonobu Senjyu ◽  
Toshihisa Funabashi ◽  
Ahmed Y. Saber ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Heat Pump ◽  
Renewable Energy Sources ◽  
Resource Depletion ◽  
Economic Benefits ◽  
Water Heater ◽  
Water Heaters ◽  
Distributed Generators ◽  
System Frequency

Abstract In recent years, the amount of distributed generators in the power grid has increased. Most of these distributed generators are renewable energy facilities using wind turbine generators or photovoltaic power systems. The increase in distributed generators is mostly due to environmental issues, growing concern of resource depletion, and economic benefits for residents and homeowners. Along with the increase in distributed generators, all-electric apartment buildings and residential homes with electric vehicles are on the rise. This trend is beneficial for both the environment and the residents; however, the fluctuating power from renewable energy sources and unstable loads causes fluctuations in grid frequency and distributed voltage which become problematic. This paper presents a methodology to control system frequency and distributed voltage using distributed controllable loads such as the heat pump water heater (HP) and large capacity batteries such as those of the electric vehicle (EV). By applying a power consumption controller using decentralized control for heat pump water heaters and droop characteristics for batteries, fluctuations of grid frequency and voltage are suppressed to a desired value. In order to verify the effectiveness of the proposed system, MATLAB/Simulink is used for simulations.

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