EXPLOITATION OF THE HYDROPOWER POTENTIAL OF SUCEAVA RIVER BASIN www.electromagnetica.ro
CONTENTS Portfolio of small hydroelectric power plants (SHPPs) Hydropower development design for Suceava river SHPPs main technical data Modernization and refurbishment of SHPPs Ehreşte, Brodina 1, Sadău, Putna, Bilca 1, Bilca 2, Bilca 3 and Ţibeni Exploitation of full hydropower potential of Brodina river by developing new SHPPs: Brodina de Jos and Brodina 2 The Quality management system Investments made during the period 2008 - 2013 Technical contribution of ELECTROMAGNETICA to the SHPPs modernization and refurbishment investment programme
www.electromagnetica.ro 8 SHPPs modernized and refurbishment during the period 2008-2013 Licensed by ANRE as electricity producer - 2007 – commissioned 2011 Brodina 2 : Brodina de Jos – commissioned 2010 2 new SHPPs SHPP Țibeni. 3 SHPP Sadău, SHPP Bilca 1, SHPP Bilca 2, SHPP Bilca 3, SHPP Putna, SHPP Ehrește, SHPP Brodina 1, SHPP Brodina de Jos, SHPP Brodina 2, 10 SHPPs located in Suceava river basin, respectively: design for Suceava river Hydropower development Portfolio [Romanian Regulatory Authority for Energy]
www.electromagnetica.ro Bilca 3 450 Bilca 2 950 11,40 6,9 384 280 11,40 0,75 45 239 Putna 950 0,60 121 7,1 800 Sadău 1.180 Low-head * New power plants 12.700 5,467 otal T 8,20 Bilca 1 7,1 454 Ţibeni 950 8,20 6,7 312 518 2.290 4 i High-head [MWh] m E [m /s] 3 Q Ehreşte [m] Hgross [kW] P i SHPPs SHPP type SHPPs main technical data power plants 600 2,03 870 61 990 Brodina2* 2.030 1,70 68 Brodina de Jos* 80 1.680 1,50 58 650 Brodina1 1.590 1,08 power plants
Modernization and re furbishement of SHPPs Ehreşte, Brodina 1, Sadău, Putna, Bilca 1, Bilca 2, Bilca 3 and Ţibeni
www.electromagnetica.ro compensating reservoir, equipment status, etc.); Restore and increase the volume of compensating reservoirs; Replacement of the existing turbines, wich are old and outdated, with new hydropower units; Full automation of the power plants and implementation of the SCADA command, control and data acquisition system for the operation without permanent staff on duty and the remote Design and development of data communications systems, using modern technologies, for transmitting the necessary parameters of the SCADA system (water level in the Redesign of some hydromechanical equipment that meet the envinronmental protection of the feed pipe and the turbines’ flow rate; imposed by the laws in force (fish passes, discharge of reserve flows, discharge of high Objectives of the SHPPs modernization 6 installed flow rate, installed capacity; control of the power plants; waters, bank protections, etc.). Increase captured discharge by changing the constructive solutions of the water intakes; Installed flow rate by taking into account the duration curve, the carrying capacity and refurbishement programme Use of equipment with optimal efficiency for each SHPPs Refurbishment concept Fulfillment of contractual obligations towards Hidroelectrica Accreditation of the hydroelectric power plants in order to receive the green certificates initially according to GD443/2003 and subsequently in compliance with Law 220/2008 Increasing the amount of produced energy by: Increasing the availability of hydropower units and hydraulic structure Full automation of the SHPPs in order to reduce the operating costs Measurement and recalculation of the power plants’ parameters: gross head, net head, Compliance with the obligations mentioned in the operating permits issued by the “Romanian Waters National Administration” [ANAR] and “National Environmental Protection Reserve flows, functional fish passes, ensuring protection and safety areas for hydropower systems and facilities Social aspects: reduction of the flooding situations in certain localities; protection of comunal roads, river training, construction of bridges and culverts, etc. Agency” [ANMP]
www.electromagnetica.ro Brodina River m E = 600 kW i P = 80 m gross = H 1,08 m /s 3 i Q = Location: 7 video surveillance system Data communication and water intake (SCADA) Computer-assisted control facility Operating software interface Transformer substation Hydropower units Power house Bank protections Compensation reservoir Water intake EHREŞTE SHPP 1.590 MWh/year
www.electromagnetica.ro After modernization • bottom discharge system all-or-nothing regime; of power plants in drought conditions also, in thus, due to the water stock, it allows the operation 10. 0 00 m 3 • compensation reservoir with a volume of about After modernization • Type – lateral water intake capacity 8 • reservoir silting over 50% of the storage • advanced state of deterioration Before modernization • Type – Tyroleses water intake Before modernization COMPENSAT ION RESERVOIR AND WATER INTAKE DISCHARGED SILL SHPP EHRE Ş TE - INVESTMENTS MADE IN 2008 and 2009 •
www.electromagnetica.ro 9 POWER PLANT HOUSE Before modernization After modernization in the Brodina river hydropower development SHPP EHRE Ş TE - INVESTMENTS MADE IN 2008 and 2009 The hydro-technical knot Ehreste serves 4 SHPPs
www.electromagnetica.ro • Easy accessibility to changing components and H Y DRO POWER UNITS of 20KV of the local distribution operator E.ON Moldova. This transformer substation connects to the national power system, as it is connected to the medium voltage line a medium voltage cell with the corresponding protection The transformer substation includes a TTU transformer booster from 04 to 20 KV with power of 1000 KVA and After refurbishment 2/3) for variable flows • Equipped with two water inlet chambers (1/3 and subassemblies • Low volume of maintenance works 10 between 17 % and 100% • High efficiency (86%) on the whole range of flow • It operates in “line stream” Banki turbine and synchronous generator After refurbishment Before refurbishment generator Francis turbine and asynchronous Before refurbishment TRANSFORMER SUBSTATION SHPP EHRE Ş TE - INVESTMENTS MADE IN 2008 and 2009
www.electromagnetica.ro Main screen VIDEO MONITORING SYSTEM VSAT COMMUNICATION AND WATER INTAKE OPERATING SOFTWARE INTERFACE • Service • Manual • Automatic – on • Automatic – off Operating mode • Water level in the reservoir • Generator speed • Active power Values • Regime modification screen 11 • Failures, Events log • Operating parameters adjustment • Temperature adjustment • Temperature measurement • Value measurement Keys for the secondary screens • Operating • Switching on • Off • Stop Status parameters and also the visualization and control of the alarm operating modes and display modes. The TOUCHSCREEN control panel of the power plant allows the real-time visualization of all the working SHPP EHRE Ş TE - INVESTMENTS MADE IN 2008 and 2009
www.electromagnetica.ro 12 COMPUTER ASSISTED CONTROL FACILITY - SCADA The access to the power plant command and control system is based on a password, at two security levels: l the first level, the operator's level, allows the control of the power plant operating regimes and the visualization of all parameters l the second level, the dispatcher's level - allows the control, visualization and modification of all operating parameters. SHPP EHRE Ş TE - INVESTMENTS MADE IN 2008 and 2009
www.electromagnetica.ro Q = m E = 650 kW i P = 58 m gross = H 1,50 m /s 3 i Location: Brodina River 13 video surveillance system Data communication and water intake (SCADA) Computer-assisted control facility Operating software interface Hydropower units Power house Transformer substation Bank protections Compensation reservoir Water intake SHPP BRODINA 1 1.680 MWh/year
www.electromagnetica.ro for the downstream Brodina 1 power plant, was SHPP BRODINA 1 - INVESTMENTS MADE IN 2008 and 2009 water by means of a by-pass pipe with a diameter of 600 mm and an electrically operated plunger valve. In case of unavailability of the Ehrește power plant, the compensation reservoir continues to be supplied with the water stock available for the other two power plants downstream. plant, is taken over in a second compensation reservoir, having the same capacity of 10,000 m3, thus doubling The water collected by the Brodina 1 water intake, together with the water used by the upstream Ehrește power After modernization reservoir designed a new water sill with lateral water intake Ehrește water intake and the Ehrește power plant, 14 hydrographical basin difference between the For taking over the water flow, resulting from the Type – lateral water intake After modernization Before modernization Type – Tyroleses water intake Before modernization TION RESERVOIR COMPENSA WATER INTAKE
www.electromagnetica.ro 15 HYDROPOWER UNITS Before refurbishment Francis turbine and asynchronous generator After refurbishment Banki turbine and synchronous generator SHPP BRODINA 1 - INVESTMENTS MADE IN 2008 and 2009
www.electromagnetica.ro Q = m E = 518 kW i P = 121 m gross = H 0,60 m /s 3 i Location: Sadău River 1 6 monitoring system Communication and (SCADA) Computer-assisted control facility Hydropower units Power house Feed pipe Compensation reservoir Sand-clearing basin Bank protections and groins Water intake Discharge sill SHPP SADĂU 950 MWh/year
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