A research team of Carnegie Mellon University recently published a professional paper in the Journal of Applied Energy. They think that plug-in hybrid electric vehicles (PHEVs) are integrated into the car-to-grid system and controllable charging operations are implemented. According to different situations, it can reduce costs ranging from 54% to 73%. More specifically, controllable charging can save the user nearly half of the charging cost. Compared with those traditional power supply methods, if you add 20% green wind power, the cost can be reduced by approximately 5% to 15%. For those systems that require capacity expansion, the power savings can be as high as 50% to 60%. As the most rapidly developing electricity resource in the United States, wind energy has been placed on high hopes to become the most important component of renewable energy power generation. In order to effectively accept this part of the energy supply is not stable enough, the power grid needs to use additional adaptive components to control the wind power fluctuations. In order to make the power grid use wind energy efficiently, it is common practice for natural gas turbine power plants to timely respond to the changes in the amount of wind energy and adjust the output of the gas turbine power to ensure that the total amount of power transmitted into the grid is basically stable; recent studies have shown that through the gas turbine to wind energy The means to adjust the volatility can reduce the emission of greenhouse gases, but it will increase the emission of nitrogen oxides (NOx) and reduce the total amount of wind power generation. All plug-in electric vehicles (PEVs), including plug-in hybrid vehicles and pure electric vehicles (BEVs), have increased people's demand for total electricity use, leading power companies to emit more emissions into the atmosphere. But in turn, these models are also an effective tool for improving the flexibility of the power grid system. To add renewable green energy to the power grid, we can use plug-in vehicles as grid energy storage units, and the power network and vehicles can be connected in both directions ( That is, the power grid can charge the vehicle, and the car can also provide excess power for the grid, in other words, the car-to-grid system (V2G). However, relevant information shows that the market share of car-to-grid systems and related ancillary services in the energy supply sector is very small, the potential for profitability is still very limited, and the number of charging and discharging vehicles participating in the system will also increase significantly. Reduce the battery life. By adjusting the charging rate of plug-in electric vehicles, the demand for electric energy can be controlled to a certain extent, which leads to an alternative solution - instead of eliminating wind fluctuations, the charging rate will change in real time as the wind energy fluctuates. . This treatment not only does not increase the number of charge and discharge times of the battery pack, but it may also help to prolong the useful life of the battery pack, because a lower average charge rate allows the battery pack to generate less heat. In the United States, a large amount of high-quality wind energy is often generated during the night. Controlling charging helps to rationally use this part of the energy. At midnight, other power loads are very low. If the coal-fired power plant only starts to operate again because it is charging an electric vehicle, Not only does the cost increase, but also a lot of unnecessary exhaust emissions, and intelligent charging systems can solve this problem. In other words, power companies can build more wind energy storage devices, and appropriately reduce the number of gas turbine units in thermal power plants, and when unnecessary, introduce excess wind energy into energy storage devices to reduce the fluctuation of energy in power grid systems. It is the most cost-effective and efficient. The research team of Carnegie Mellon University evaluated the possible cost savings of controllable charging under conditions of wind energy and windless energy supply. The purpose is to understand whether plug-in electric vehicles can help save the power of adding large amounts of wind power. The cost of system power generation, or controllable charging, can only eliminate the side effects of the vehicle to the grid system on the vehicle. In the course of this research, the researchers focused on the plug-in hybrid vehicle, which does not need to change the current driving mode during the evaluation. In order to determine the superiority of controllable charging, they also charge fast (the vehicle is connected to the power grid and immediately start charging, and the current is always at the maximum), and the time delay charge (the vehicle is connected to the power grid for a certain time before the next use, and the maximum Current charging) and non-charging processes using only fuel are tested and involves various possible scenarios such as high/low level wind energy, large/small number of vehicles connected to the grid, and high/low initial generation capacity. The research team constructed a mixed-integer linear programming model based on the New York Electric Power Dispatch System (NYISO) to guide energy storage expansion, power plant dispatch, and plug-in hybrid vehicle charging. In addition, they collected data on hourly wind power generation and load power consumption, and assumed that these data were accurate information for the absence of prediction errors to determine a reasonable amount of energy storage expansion and generator set; then the results of the forecast and 15-minute analysis The graphs are compared to assess the importance of trends in supply and demand power over the next hour. Instead of assessing the power supply capacity of the entire power plant, they instead focused on the difference between a fully-charged power supply system and those that need to increase capacity. TCT Circular Wood Cutting Saw Blade
Saw blade-TCT Circular saw blade
Application Suitable for the cutting of aluminum alloy materials,non-ferrous metals and some other materials.High quality and long cutting life.
Benchmark Wood TCT blades are manufactured to exacting European standards.
Process Type:High Frequency Welded TCT Circular Wood Cutting Saw Blade,TCT Circular saw blade ,Wood Cutting Blade ,cutting disc for metal Changzhou Bomitools Co.,Ltd. , https://www.bomitools.com
hardwoods in a range of thicknesses, with occasional cutting of plywood, wood framing, decking, etc.
* PREMIUM TUNGSTEN CARBIDE - The tungsten carbide tips are welded one by one to the tips of each blade in a fully automated
manufacturing process.
* SOLID STEEL CORE - Each of our wood blades is laser cut from solid metal sheets, not coil stock like other cheaply made blades.
Customized support:OEM
Place of Origin:Jiangsu, China
Model Number:RQ0234
Finishing:/
Size:115-450MM
Product Name:TCT Circular Saw Blade
Usage:Wood Material Cutting
Diameter:115-450mm
Cutting material:Wood Material
Arbor Size:25.4
Teeth per Inch:24-120
Teeths:24-120
Blade Length:115-450MM