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Distributed generations and renewable energy generations have been widely installed in the distribution systems all over the world. The intermittence of distributed renewable energy generations and their special characteristics have various impacts on power system operation and dispatch. In this paper, the impacts of distributed generations on dispatch modes of power systems are discussed based on...
Demand side management has been one of the effective means of load shifting and peak-load shaving. In a system with distributed generations and distributed renewable energy sources, demand response can significantly improve the efficiency of electricity usage and energy saving. With the development of advance metering infrastructure, and information and communication technologies, demand side management...
The installation of distributed generation (DG) introduces challenges to distribution systems operation. The distribution network operator needs to schedule DG outputs considering some constraints, such as DG characteristics, reactive power control mode of generators, automatic voltage regulation, compensator and power quality standard, etc. Based on an optimal power flow model, this paper proposes...
Rapid economic growth in China requires large amount of electricity supply. When centralized generation (CG) can not provide sufficient electricity supply, distributed generation (DG) draws people's attention. In this paper, the development status and applicability of DGs in China is discussed in detail, and three typical DG utilizations are introduced. Finally, the development of wind generation...
This paper propose a method to evaluate the dip and interruption costs in the distribution system with distributed generation units (DGs). The game theory is used to allocate the additional cost caused by operating DGs. To evaluate the impacts of DGs on dip and interruption costs, which could be positive impact or negative impact, the operating hours of DGs, the frequencies of the power quality events...
In the deregulated power system environment, to maintain system security and power quality, ancillary services are obtained by the system operator in the ancillary service markets. Automatic generation control (AGC) is procured as an ancillary service in the electricity markets. On the other hand, with the development of new generation technologies, distributed generations (DGs) have been widely used...
This paper addresses some of the modeling and economic issues pertaining to the optimal reactive power planning of radial distribution systems with distributed generation. When wind power generation (WPG) units are installed in a distribution system, they may cause reverse power flows and voltage variations due to the random-like outputs of wind turbines. To solve this problem, we introduce static...
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