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One of the biggest changes the power industry will encounter over the next twenty years will be the significant increase of embedded generation connecting directly to the distribution system. Amongst various generator connection requirements required to ensure network resilience, Fault Ride Through requirement may be one of the key areas which requires further assessment. Providing the capability...
National Grid in its capacity as both a Transmission Owner and System Operator is experiencing changes in the network characteristics, brought about by changing patterns in generation, transmission and demand technology. This paper discusses some observations around network performance and shares some thinking on the opportunities and considerations for new technology solutions to contribute to a...
Offshore windfarms are a rapidly growing market in the UK. It is expected that over 32 GW of offshore windfarms will be built by 2030. The new generation of larger and more efficient wind turbines has allowed planning for larger offshore windfarms located farther from the shore. The connection options for offshore windfarms are still open and under debate, so a more efficient and reliable power network...
Availability of wind energy which differs across locations primarily determines the appropriate location for installing windfarms. However, the grid location of windfarms must always be considered in an attempt to accurately quantify the benefits which can be achieved from windfarms during their lifetime operation to the supply network. The value of wind power is significantly affected by their penetration...
Electricity networks operators must operate their network with a high degree of efficiency and reliability. Presently the drivers for lower-carbon electricity generation technologies are high, and to accommodate such technologies (e.g. large-scale wind power), significant changes have to be made to the way that Transmission and Distribution (T&D) networks are designed and operated. The Smart Grid...
This paper compares and contrasts the benefits from dynamic and non-dynamic demand management schemes in domestic sector for more effective wind power utilization. Non-dynamic demand management by shifting the demand from peak periods to off peak periods mitigates the issues associated with demand variations. In dynamic demand management, load by responding to wind generation output's variations will...
The value of intermittent wind generation is significantly affected by their penetration and concentration, and is further affected by their location within a network. This is because the location and penetration level of wind generation will result in significant impact on power flow distribution across the network. When increasing the penetration and concentration of wind generation in a power system,...
In this paper, the amount of dispatchable responsive demand from domestic sector with different methods of charging has been evaluated and the benefits of responsive demand in order to increase the security, reducing the emissions and production cost in an intermittent system has been presented. Additional benefit; the value of wind is also demonstrated. The quantification was performed on the IEEE...
The value of renewables is significantly affected by their penetration, concentration and location. Value is further affected by the responsiveness of demand which will reduce the need for back up power through non-renewable sources. By increasing the penetration of renewables in power systems, demand side participation become more important. Demand side management (DSM) programs have been studied...
The value of renewables is significantly affected by their penetration, concentration and location. Value is further affected by the responsiveness of demand which will reduce the need for back up power through non-renewable sources. By increasing the penetration of renewables in power systems, demand side participation become more important. Demand side management (DSM) programs have been studied...
Novel dynamic voltage-sharing schemes have been developed to allow any high-voltage power-semiconductor device, e.g. thyristor, IGCT, IGBT or power MOSFET, to be series-connected in strings, and switched as simply and rapidly in high-voltage applications as single devices. The circuits have many of the advantages of simply using RC or RCD snubbers, including being easily applicable to both low- and...
Novel dynamic voltage-sharing schemes have been developed to allow any high-voltage power-semiconductor device, e.g. thyristor, IGCT, IGBT or power MOSFET, to be series-connected in strings, and switched as simply and rapidly in high-voltage applications as single devices. The circuits have many of the advantages of simply using RC or RCD snubbers, including being easily applicable to both low- and...
Distribution networks across the UK are expected to connect substantial embedded generation in near future as .One of the key means to combat climate change. The majority of embedded generation are expected to be renewables that have intermittent nature with poor persistence. This would pose serious problem to the security and quality of supply that distribution network operators (DNOs) have license...
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