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| | </o:shapelayout></xml><![endif]--><!--StartFragment--> | | </o:shapelayout></xml><![endif]--><!--StartFragment--> |
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| − | <span id="1274973221030S" style="display: none"></span> | + | <span style="display: none" id="1274973221030S"></span> |
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| − | = Overview = | + | = Overview<br/> = |
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| − | Function Principles
| + | Load- or Flow- controller ensure that the power output does not exceed the power demand (e.g. 230V, 50 Hz).<br/>If flow of water in a MHP-station is constant the energy output of a turbine/generator is constant as well. Power demand is usually fluctuating over the time (e.g. day/night). If supply is higher than demand, excess energy must be diverted, dumped. Alternatively the water flow can be reduced which results in less power output. In case of more power demand than supply the controller cuts of the of demand line. Load controller are placed between generator output and the consumer line.<br/> |
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| − | [[File:Mhp-scheme.jpg|none|579px|Mhp-scheme|alt=Mhp-scheme.jpg]]
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| − | Load- or Flow- controller ensure that the power output does not exceed the power demand (e.g. 230V, 50 Hz).<br/>If flow of water in a MHP-station is constant the energy output of a turbine/generator is constant as well. Power demand is usually fluctuating over the time (e.g. day/night). If supply is higher than demand, excess energy must be diverted, dumped. alternatively the water flow can be reduced which results in less power output.<br/>In case of more power demand than supply the controller cuts of the of demand line.<br/>Load controller are placed between generator output and the consumer line. <!--EndFragment-->
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| | + | <u>Function Principles:</u><br/> |
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| | + | [[File:Mhp-scheme.jpg|thumb|center|521px|MHP Scheme|alt=Mhp-scheme.jpg]] |
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| | <br/> | | <br/> |
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| | </o:shapelayout></xml><![endif]--><!--StartFragment--> | | </o:shapelayout></xml><![endif]--><!--StartFragment--> |
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| − | == [[Hydropower_-_Equipment#Load_Control_Governors|Load Controller]]<br/> == | + | == Load Controller<br/> == |
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| − | [[File:Controler.jpg|right|320px|Controler.jpg|alt=Controler.jpg]] | + | [[File:Controler.jpg|thumb|right|320px|Controler|alt=Controler.jpg]]<br/> |
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| | Electronic circuit, which keeps output power constant in Frequency- and Voltage- parameters. | | Electronic circuit, which keeps output power constant in Frequency- and Voltage- parameters. |
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| | Fluctuating energy demand requires a mechanism which either regulates the water input into the turbine (= flow control) or by diverting excess energy from the consumer connection (= ballast load). | | Fluctuating energy demand requires a mechanism which either regulates the water input into the turbine (= flow control) or by diverting excess energy from the consumer connection (= ballast load). |
| | + | |
| | + | <br/> |
| | + | |
| | + | ► [[Hydropower_-_Equipment#Load_Control_Governors|Hydropower Equipment - Load Control Governors]]<br/> |
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| | <br/> | | <br/> |
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| | == Ballast Load<br/> == | | == Ballast Load<br/> == |
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| − | usually electrical heaters in water or air. If energy demand is temporarily low the excess energy is converted into heat. | + | Ballast load are usually electrical heaters in water or air. If energy demand is temporarily low the excess energy is converted into heat.<br/> |
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| | <br/> | | <br/> |
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| | == Flow Control<br/> == | | == Flow Control<br/> == |
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| − | regulates the amount of water into the turbine in order to match power output and power demand. | + | The flow control regulates the amount of water into the turbine in order to match power output and power demand.<br/> |
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| − | Nowadays flow control is done mostly via electronics (which steer a valve) | + | Nowadays flow control is done mostly via electronics (which steer a valve). |
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| − | [[File:Flow-control.jpg|left|547px|principle flow control|alt=principle flow control]] | + | [[File:Flow-control.jpg|thumb|center|547px|The principle of flow control|alt=principle flow control]]<br/> |
| − | | + | |
| − | <br/> | + | |
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| − | = Further Information = | + | = Further Information<br/> = |
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| − | *[[Portal:Hydro|Portal:Hydro]] | + | *[[Portal:Hydro|Hydro Portal on energypedia]] |
| − | *[[Hydropower_-_Equipment|Hydropower - Equipment]]<br/> | + | *[[Electrical-Mechanical Equipment|Electrical-Mechanical Equipment]]<br/> |
| | + | *[[Hydropower - Equipment|Hydropower - Equipment]]<br/> |
| | + | *General: [[Micro Hydro Power (MHP) Manuals|Micro Hydro Power Manuals]] |
| | + | *[[:File:Good and bad of mini hydro power vol.1.pdf|Good and Bad of Mini Hydro Power]] |
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| | <br/> | | <br/> |
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| | = References<br/> = | | = References<br/> = |
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| − | <references /> | + | <references /><br/> |
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| | [[Category:Hydro]] | | [[Category:Hydro]] |
Load- or Flow- controller ensure that the power output does not exceed the power demand (e.g. 230V, 50 Hz).
If flow of water in a MHP-station is constant the energy output of a turbine/generator is constant as well. Power demand is usually fluctuating over the time (e.g. day/night). If supply is higher than demand, excess energy must be diverted, dumped. Alternatively the water flow can be reduced which results in less power output. In case of more power demand than supply the controller cuts of the of demand line. Load controller are placed between generator output and the consumer line.
Electronic circuit, which keeps output power constant in Frequency- and Voltage- parameters.
Fluctuating energy demand requires a mechanism which either regulates the water input into the turbine (= flow control) or by diverting excess energy from the consumer connection (= ballast load).
Ballast load are usually electrical heaters in water or air. If energy demand is temporarily low the excess energy is converted into heat.
The flow control regulates the amount of water into the turbine in order to match power output and power demand.
