CN101430358B - Head-machine first water pump behavior full-group start test method for pump storage plant - Google Patents

Abstract

The invention discloses an initial whole-unit start-up test method of a first unit of a pumped storage station in a water pump operating condition. The test method sequentially comprises a unit water pump operating condition test, a unit power generation operating condition no-load test, a unit power generation operating condition load test, an operating condition conversion test and an emergencyshutdown test. The unit water pump operating condition test comprises the following steps: a. the water pump operating condition no-load test: the unit is started by a static frequency converter and is connected with an power grid for operation in a gate closure state and impellers are in air; b. the water pump operating condition pumping test: when the pumping operating condition is stable, a synthetic curve of hydraulic turbine/pump is drawn; and c. the water pump operating condition shutdown test: the unit operates at rated load, stops by simulating a mechanical breakdown and a breakdown caused by that electrical protection action trips off a circuit breaker, corrects gate closure rules, and optimizes procedure parameters. The initial first-unit water pump operating condition startup proposal is used, which is beneficial to saving construction cost, can advance power generation of the first-unit, and provides good social and economic benefits.

Description

The whole group of the first prow time pump operating condition of hydroenergy storage station starting characteristics test method

One, technical field:

The present invention relates to the whole group of a kind of hydroenergy storage station starting characteristics test method, particularly relate to the whole group of the first prow time pump operating condition of a kind of hydroenergy storage station starting characteristics test method.

Two, background technology:

Along with development of electric power industry, net capacity and coverage enlarge rapidly, and problems such as peak load regulation network, accident emergency use and black startup are more and more outstanding.Moreover the economic development of China and the Regional Distribution of hydroelectric resources are very uneven, bring bigger peak regulation difficulty for the eastern region electrical network of hydroelectric resources rareness.Pumped Storage Power Station Construction is the economy that addresses the above problem, way efficiently.

Hydroenergy storage station is made up of upper storage reservoir, lower storage reservoir, water-carriage system, underground power house hole group and ground 500kVGIS switchyard, the buildingss such as Bao Lou and middle control building that continue.Need be in when design in conjunction with natural conditions such as the geography of upper and lower reservoir, conduit pipe and underground power house, geology, and the factor of aspects such as the concrete condition of consideration place electrical network and whole engineering economics, therefore, the design of main equipment, manufacturing are to carry out ground by the pattern of " cutting the garment according to the figure " basically; Simultaneously, these giant mechanical and electrical equipments generally all are to use (installation) field-installed, and this just requires trial run stage after hydroenergy storage station is built up to carry out the on-the-spot test test and the equipment performance testing experiment of equipment and technology parameter.

Precious spring hydroenergy storage station and other upper storage reservoirs do not have and naturally come the hydroenergy storage station of water the same, and when first unit first start-up test, will face and take hydraulic turbine operating mode, or the problem that starts first of pump operating condition.Adopt hydraulic turbine operating mode startup first by traditional mode, then need to utilize other water-filling equipment earlier to the upper storage reservoir water-filling, for hydraulic turbine idle condition starting characteristics test is stocked the essential debugging water yield.There is the bigger problem of water-filling power consumption again in the restriction that this both had been subjected to upper storage reservoir construction deadline and filling time.

Three, summary of the invention:

Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, a kind of engineering cost that not only helps saving is provided, and can also shift to an earlier date the whole group of the first prow time pump operating condition of the hydroenergy storage station starting characteristics test method that first unit gone into operation and generated electricity.

Technical scheme of the present invention is: the whole group of the first prow time pump operating condition of a kind of hydroenergy storage station starting characteristics test method; comprise the test of unit pump operating condition, unit generation working condition tests, change working test and force outage test successively; at first carry out described unit pump operating condition test, described unit pump operating condition test may further comprise the steps:

A, pump operating condition no-load test: start unit with static frequency changer, unit stator close with the aerial state of runner under the operation that is connected to the grid; Measure unit power input, stator and rotor current, each position temperature of unit and unit vibration and throw value, the transient equilibrium after the electronic operating mode of verification unit is incorporated into the power networks; No-load running is measured each position temperature and thrust and guide bearing temperature till the temperature stabilization, and is in service as find watt temperature phenomenon that sharply rises, and answers hard stop, stable after, carry out the auto stop test, check the correctness of shutdown procedure;

B, pump operating condition bailing test: operation unit inflation water pressuring system carries out exhaust, monitors the pressure between draft tube water level rising situation and stator and the runner, and admission pressure changes oscillogram, determines best opportunity and opening speed that stator is opened; Press water intake ball valve and stator and open relation curve, open water intake ball valve and stator; Parameters such as pressure, volute pressure, draft tube pressure, servomotor stroke between power input to machine, stator and runner when admission carries out the transition to pumping operation mode from the zero flow operating mode; Lower bearing bracket, top cover, bearing bridge vibration and main shaft throw in the admission; According to above-mentioned admission data and actual lift, stator is opened rule etc. revise and parameter optimization; After the pumping operation mode stable operation, measure power input to machine, guide vane opening, the flow that draws water, lift, unit vibration and throw, noise, spiral case, draft tube pressure and pressure fluctuation, each temperature of unit, cooling system flow and pressure, shaft voltage etc.; Draw the resultant curve of the hydraulic turbine/water pump according to the parameters such as power input, lift, flow and guide vane opening of actual measurement, and and the curve that provides of manufacturing plant compare;

C, pump operating condition engine cut off test: unit moves under rated load, provides stop instruction at local control unit, checks automatic load-reducing and unit auto stop program correctness; Write down sequential chart and the rotary speed property and the overall time of master routine action in the orderly closedown process, determine the tripping operation opportunity of isolating switch in the load shedding process; Under the rated load, the force outage of simulation mechanical accident and electric protection action tripping isolating switch, check the correctness of pump operating condition load dump test shutdown procedure, check normal and mechanical accident break point clamping device input, the input of protective device and locking situation; Parameters such as each position vibration of pressure, servomotor stroke, rotating speed, total down-time and unit and main shaft throw between the stator in the admission stopping process and electric current, voltage, guide vane opening, spiral case and draft tube pressure, stator and the runner of rotor; and according to the oscillogram of above-mentioned parameter; revise the stator Closing Law, the optimizing process parameter.

Carry out the test of being incorporated into the power networks of static frequency changer starting characteristics test, electric braking test and automatic presynchronization before the described pump operating condition no-load test earlier, may further comprise the steps successively:

A, the static frequency changer frequency adjustment is set in rated speed about 5%, closes frequency converter input side isolating switch, start frequency converter, the pump operating condition direction turns clockwise for overlooking; Under the rated speed about 5%, shut down, check the correctness of shutdown procedure and the reliability of clamping device action, rotating speed and be fed into the time that stops fully when the record clamping device drops into; Start first, shutdown inspection qualified after, start is once more adjusted generating unit speed between 0 to 10%, checks frequency converter pulsing operation function, adjusts initial exciting current setting value and direct current output setting value, tries to achieve the optimum matching of the frequency converter and the parameter of electric machine; Check that frequency converter is carried out the transition to the working condition of the nature change of current and is adjusted to optimum condition by forced commutation; The rotating speed of rising progressively step by step, the transient equilibrium of verification unit, rotating speed withdraws from mechanical brake before rising, rotating speed drops at 5% o'clock and drops into mechanical brake again when shutting down, rise progressively rotating speed and be stabilized in 20% rated speed, check electric measurement system and protective device working condition, after the passed examination, the rotating speed of rising progressively step by step is until rated speed; Recording unit rises to the time the rated speed process and records oscillograms such as generating unit speed, frequency converter rectification side electric current, stator current, stator voltage, rotor current from zero rotating speed, record, and, optimize frequency converter and excitation unit and regulate parameter according to oscillogram; Automatically open after the parameter optimization, engine cut off test, start unit at terrain with automated manner, check the Auto Power On program correctness, under rated speed, normally reach force outage, check the shutdown procedure correctness, record the demagnetization oscillogram, calculate de-excitation time-constant;

B, when under rated speed, carrying out orderly closedown, carry out the unit electric braking test: electric braking exciting current definite value is set at the value more less than rated current, in the process of shutting down, drop into electric braking, check whether the electric braking switch normally drops into, whether excitation system correct operation, protection system is answered no abnormal reaction, again the electric braking exciting current is returned to ratings, revision test, be recorded in throw with the situation of not throwing electric braking under rotating speed decline situation, record electric braking timing input group stop time;

C, finish unit starting test and parameter optimization after, automatically open, shut down with terrain and supervisory system mode, carry out the test same period, carry out the simulation test same period earlier, optimize frequency and voltage-regulation parameter, carry out the test of formal simultaneous interconnecting after qualified, admission starts isolating switch, same period isolating switch action timing diagram; Check the correctness and the mensuration T.T. of instructing the same period to the completion logic loop same period from sending.

Described unit generation working condition tests may further comprise the steps:

A, unit manually boot first: manually slowly open stator to unit and begin to rotate, the generating operation mode direction is rotated counterclockwise for overlooking, if it is no abnormal, continue to increase guide vane opening, manually opened stator starts unit to 10% rated speed, operation 1min presses the emergency stop button and shuts down, and checks unit vibration, throw and temperature parameter; When rotating speed reaches 5%, manually drop into clamping device; If unit is no abnormal, manually opened once more stator starts unit, respectively move 1min in 20%, 30%, 40% of rated speed, 50% operation 20-30min in rated speed, check unit vibration, throw and bearing temperature rise situation, the check speed measuring device, the manual-lock stator carries out engine cut off test, observe the input situation of clamping device, record stopping process curve; When unit was no abnormal, manually opened once more stator started unit, makes unit 75% rated speed stable operation 5 minutes, checked unit bearing temperature rise, mechanical vibration; If no abnormal, continue to increase guide vane opening, make unit under 60%, 70%, 80%, 90% rated speed, respectively move 5 minutes, check the unit vibration situation, after generating unit speed reaches 90% rotating speed, can manually excise the hydraulic oil jacking system; If it is no abnormal, continue to increase guide vane opening, make unit stable operation under rated speed, should strictly monitor unit ruuning situation in the boosting velocity procedure, answer the hard stop inspection if meet abnormal conditions, the initial aperture and the no-load opening of the startup of record unit are checked the output of electrical rotate-speed contact, the unit residual voltage is measured in the indication of check frequency;

Speed regulator adjustment test under b, the no-load running: respectively under different stable operation group parameter combinations, respectively with ± 1Hz, ± 2Hz, ± step amount of 4Hz carries out the unloaded upset test of speed regulator, record adjusting time, adjusting number of times, maximum overshoot, record the speed regulator disturbance waveform, choose optimum one group of no-load running and regulate parameter, under automatic adjustment state, record servomotor oscillating quantity and hunting period, record unit 3min fluctuation of speed value, generating unit speed swing relative value be no more than ± and 0.15%; Behind the set steady, under rated speed, record vibrating numerical and exceed standard, need carry out the hydrogenerator dynamic balance running, to overcome the mechanical vibration that cause owing to the dynamic and static imbalance of rotor quality;

Test after c, manual shut-down and the shutdown: after set steady moves to each position temperature stabilization, manually drop into high pressure oil jacking device, at speed regulator regulator cubicle guide vane closing, make compressor emergency shutdown, when speed drop to 25% or producer's regulation rotating speed, manually drop into mechanical brake device until the unit stall, the brake off device resets detent, in the stopping process, monitor each position temperature variations, tachometric relay action situation is recorded and is shut down rotating speed and time curve, checks each position oil groove pasta situation of change;

D, the unit test of overrunning: overrun and each overspeed protection contact of speed measuring device is protected the loop from the water organizational security and broken unit is electric, monitor its action situation with interim method, drop into mechanical overspeed protection, manually start shooting to set steady and move, manually open big stator, unit raising speed to mechanic over speed protection device is moved, check electric overrunning in the boosting velocity procedure, unit speed measuring device respectively overrun contact action situation and mechanical overspeed protection action situation, as when reaching machinery and overrunning definite value, unit does not shut down, and then manual emergency shutdown is after the off-test of overrunning, after shutting down and carrying out safety practice, each parts of unit are overhauled comprehensively;

E, the test of unit up-flow: manually start shooting to rated speed, manually close degaussing switch after working well in each position, by the manual up-flow of excitation unit; When making stator current rise to 10% rated current, confirm that each correlated current transformer secondary circuit does not have open circuit, continue up-flow with 25%, 50%, 100% rated current then, check the correctness and the symmetry of each current return of generator, record demagnetization process oscillogram under the rated current, by writing down stator current and rotor current every 10% rated secondary current, record the generator three phase short circuit characteristic, under the rated current of generator, measure the vibration and the throw of unit, check the working condition of carbon brush and collector ring;

F, unit pressure build-up test: Auto Power On after stablizing, is measured residual voltage to free-runing operation, checks three-way voltage symmetry; Manual voltage boosting to 25% rated voltage, measuring voltage loop secondary side phase sequence, phase place and magnitude of voltage; Rise to 50% rated voltage, jump degaussing switch, record the demagnetization oscillogram, continue to rise to rated voltage, each vibration of unit, throw value; Measure generator shaft voltage, check shaft current and protector measuring voltage circuit secondary side phase sequence, phase place and magnitude of voltage; Check whether charging equipment work is normal; Under the rated voltage, jump degaussing switch, record the demagnetization oscillogram, zero boosts, and every 10% rated voltage record stator voltage, rotor current and frequency, records unloaded upcurve; Boost to and make exciting current when ratings, measure stator voltage, the stator ceiling voltage can not surpass 1.3 times of stator rated voltage, and stops 5 minutes under this voltage, then drops to rated voltage; Begin step-down by rated voltage,, record unloaded decline curve every 10% rated voltage record stator voltage, rotor current and frequency;

The adjustment and the test of field regulator under g, the zero load: the manual and automatic switchover of unloaded inspection field regulator down, the master uses, alternate channel switches, the record ripple is observed the stationarity of switching, under automatic and manual dual mode, do the demagnetization test respectively, generator voltage is risen to 100% ratings, the change procedure of generator voltage, rotor current, voltage under degaussing switch and the inversion field suppression dual mode is jumped in admission, reads de-excitation time-constant on record ripple figure;

H, unit is tested side by side: simulate test arranged side by side earlier, carry out formal test side by side after qualified again, the commutation disconnector is put " disconnection " position, remove commutation isolator operation power supply, remove the locking of commutation disconnector and generator outlet isolating switch, remove the speed regulator signal that is incorporated into the power networks, supervisory system is sent out " shutdown-generating " order start, carrying out the simulation of unit tests side by side, monitor unit start flow process, synchronous device input, breaker closing, the speed regulator response situation, check the synchronous device working condition, record generator voltage simultaneously, system voltage, the breaker closing timing chart, the tripping isolating switch is according to oscillogram, check, adjust the combined floodgate leading time, after simulating stand the test arranged side by side, recover simulation related measure arranged side by side, close the commutation disconnector, carry out formal test side by side, recording system voltage, generator voltage, breaker closing pulse oscillogram;

I, unit load test: Auto Power On, after being connected to the grid, press respectively at unit local control unit position and host computer, increase burden with power step by step, measure the vibration of unit under various loads, throw, each watt temperature, bearing temperature rise, oil temperature, oil level, cooling water pressure, flow, parameters such as reservoir level, draft tube force value, water inlet flow channel hydraulic pressure, stator voltage electric current, rotor voltage electric current, active power, reactive power, generator noise up and down; Increasing and decreasing load under speed regulator aperture control and power state of a control respectively, observe the stability of unit in set steady and both the mutual handoff procedures, the speed regulator parameter adjustment is after optimum condition, increase or reduce suddenly load by the variable quantity that is no more than 25% rated load suddenly, automatically write down generating unit speed, volute pressure, Pressure Fluctuation in Draft Tube, parameters such as transient process such as servomotor stroke and variable power, vibration situation when observing unit increase load, respectively 0,50%, under the 100% specified active power state, to ratings, adjusting should be steady from zero for field regulator adjustment reactive power, nothing is beated;

J, unit load dump test: respectively 25%, 50%, 75%, under 100% rated load, carry out load dump test, before getting rid of by rules requirement record, in getting rid of, generating unit speed after getting rid of, guide vane opening, stator shut-in time servomotor comes and goes number of times, speed regulator is regulated the time, the spiral case actual pressure, the throw of unit, vibration values, data such as watt warm situation of change, and record relevant conditional curve, get rid of under the rated load demagnetization characteristic and record and get rid of servomotor dead time etc. under 25% rated load, stability and the overshoot and the speed regulator dynamic adjustments performance etc. of field regulator when checking removal of load, the servomotor emergency cut-off time when checking removal of load;

K, unit generation phase modulation and Continuous Heat stable operation test: the generator operation as synchronous condenser operating mode of unit under the generator state has shuts down static-generating phase modulation, generating-generating phase modulation, before the test of unit generation phase modulation, carry out the phase modulation packer permeability test earlier, whether observe hydraulic valve action frequency and draft tube level switch state consistent with monitoring display, write down the automatic tonifying Qi time interval, after setting-out is finished, carry out exhaust by exhaust flow path, it is normal that level switch should show that water level rises, each hand valve of pretest inspection water pressuring system is shown in an open position, water pressuring system should be able to be finished double setting-out, unit is when generator operation as synchronous condenser, and record is after stator closes, the runner active power that unit is consumed during running during free-runing operation and in air in water; Check inflation setting-out situation and making-up air device action situation; Check unit generator operation as synchronous condenser program correctness, check the correctness of each Automation Elements action when generating operation mode and phase modulation operating mode are switched mutually, record operating mode switching time, check under the unit generator operation as synchronous condenser operating mode, generator reactive power is regulated situation, and the record rotor current is the maximum output reactive power value under the zero power factor.

Described change working test and force outage test may further comprise the steps:

A, local control unit are opened automatically, shutdown and operating condition transfer test, carry out the opening automatically of various operating modes, engine cut off test by local control unit, comprise starting of static frequency conversion, unit by static to draw water, draw water to static, static to water pump phase modulation, water pump phase modulation to static, pump operating condition is normally transmitted the test of electrician's condition: unit carries out pump operating condition to the generating operation mode transfer test under running status; Pass through frequency measuring device, the instruction of artificial input low frequency, unit is changed to generating operation mode by pump operating condition, check the correctness of converse routine, pump operating condition is promptly transmitted the test of electrician's condition: stable operation under the unit pump operating condition, shut down with substep operation and automated manner respectively, behind the circuit breaker trip, stator closes to zero, rotating speed drops to about 5% rated speed at the brakeless state after, open stator, unit turns to raising speed to rated speed by generating, inspection is shut down from water pump and is gone to the generating program correctness again, repetition is after the isolating switch tripping, different rotating speeds, under the state of different guide vane openings, measure unit each vibration under hydraulic brake, throw, pressure fluctuation reached by this speed drop to the zero time, according to various different rotating speeds, the measured value of different guide vane openings, determine hydraulic brake intensity and unit vibration, throw, pressure fluctuation and switching time etc. optimized parameter, under optimized parameter, carry out the automatic conversion that pumping operation mode is promptly transmitted electrician's condition overall process, unit vibration in the conversion of admission process, oscillogram such as throw and pressure fluctuation, generating operation mode changes the pump operating condition test: unit carries out generating operation mode to the pump operating condition transfer test under the generator operation state; Pass through frequency measuring device, the instruction of artificial input high-frequency is changed by generating operation mode unit to pump operating condition, check the correctness of converse routine, the water pump phase modulation and the running test of drawing water: carry out the change working test that the water pump phase modulation changes the commentaries on classics water pump phase modulation that draws water, draws water, check the correctness of converse routine; Unit stable operation under water pump phase modulation operating mode is carried out reactive power and is regulated test, checked encourage, whether underexcitation limiter protect setting range to adhere to specification;

B, monitoring power station system open automatically, shutdown, operating condition transfer test: finish starting mode of pump, zero load, draw water, after the tests such as change working, terrain control startup-shutdown, the parameter of actual measurement in the test and admission is imported power station computer monitoring system after optimizing, utilize that power station computer monitoring system is opened automatically, engine cut off test and the test of various operating condition, check open automatically, the correctness of shutdown procedure and the correctness of operating condition converse routine; Check that the interface of upper and lower reservoir level signal, trash rack pressure difference signal etc. and monitoring power station system is whether normal and whether its effect stop instruction is reliable, unit open, in the stopping process and under normal operation, simulation station-service AC power disappears, in station-service alternating current automatic switching procedure, do not influence the normal safe operation of unit;

C, the test of unit force outage: after finishing unit on-load and load dump test,, test after the approval, respectively simulation speed regulator low oil pressure emergency closure stator auto stop under unit band rated load to system's application force outage test; Under the unit band certain load, the simulated accident action, the unit removal of load, emergency cut-off ball valve test in the moving water, the record ball valve moves the shut-in time in the water, moves to the time of shutting down from ball valve.

It is 491.73～505.78m that described pump operating condition starts range of lift; The minimum first water storage level of pump operating condition upper storage reservoir is 749.20m; The pump operating condition flow that draws water is 52.6～51.8m ³/ s; The pump operating condition guide vane opening is 13 °; The pump operating condition power input is 305～300MW; Hydraulic turbine idle condition 24h starting characteristics test total water amount is 70.848 ten thousand m ³:; Hydraulic turbine idle condition starting characteristics test operating head polishing is 505.68～500.9m, and no load discharge is 8.2～8m ³/ s, unloaded guide vane opening is 7 °～6.5 °.

The invention has the beneficial effects as follows:

1, the present invention adopts first prow time pump operating condition to start scheme, not only help saving engineering cost, and can also shift to an earlier date first unit operation generating, after draw water cost and other amortizations are deducted in generating in advance, according to the electric weight price is 0.168 yuan/kW.h, 300,000 kW unit generation amounts are by 5h every day, and it shifts to an earlier date power benefit and is about 2071.44 ten thousand yuan, and economic benefit is obvious.

2, the guide vane opening of the unusual low lift operation of water pump of the present invention is 13 °, and minimum unusual low lift is 470m, and corresponding prototype flow is about 54m ³/ s, power input during mains frequency 50Hz is 295MW, and satisfy in the contract requirement to the normal range of operation internal pressure of water pump pulsating quantity (pressure fluctuation value Δ H/H＜8% between stator and the runner), pump operating condition moves with this understanding nuisance vibration and the broken ring of cavitation, operational excellence does not take place.

3, the present invention is by the engineering practice and the summary of experience thereof of the first prow time pump operating condition starting characteristics test in Bao Quan power station, both finished first unit starting test mission smoothly, the selection that last storehouse is not had a first prow time starting characteristics test mode of other hydroenergy storage stations of open water supply provides reference again, after the popularization, have bigger society and economic benefit.

Four, embodiment:

Embodiment: the whole group of the first prow time pump operating condition of hydroenergy storage station starting characteristics test method may further comprise the steps successively:

1, prerequisite condition before the whole group of the unit starting characteristics test:

(1) upper storage reservoir builds up and through secure authentication, has possessed the retaining service condition; Lower storage reservoir is inspected for acceptance qualified and retaining, no bulk floating thing before and after the water inlet trash rack, and lower storage reservoir water storage level and pondage all satisfy the requirement that unit starting is tested; The hydraulic monitor system function of upper and lower reservoir is normal, and the signal is far passed is correct.

(2) 1# tail water water-carriage system and 1# diversion water-carriage system fill drainage test work and finish, and handle and acceptance(check) by checking, disappear to lack; Upper and lower reservoir advances/and Installation and Debugging are qualified for water delivering orifice gate and tail water break down maintenance gate and control system thereof, and the actuation test under the hydrostatic condition is satisfied and is opened and closed requirement, and has come into operation.

(3) test of the full factory in Bao Quan power station Resistance of Grounding Grids is finished, and the whole network stake resistance is that 0.654 Ω adheres to specification.

(4) the 500kV system quality supervision and inspection and the safety assessment work field test of falling before the energization test passed through.

2, the operational factor of the whole group of first prow time pump operating condition starting characteristics test:

Pump operating condition starts range of lift: 491.73～505.78m; The minimum first water storage level of pump operating condition upper storage reservoir: 749.20m; The corresponding total filled water amount of the minimum first water storage level of upper storage reservoir: 4.391 ten thousand m ³(finishing water-filling) by 2 upper storage reservoir charging pumps in upper storage reservoir 6 water supply for construction system water supplies pump and the factory building; The upper storage reservoir upper limit/lower limit operating water level: 762.00～757.71m; Upper storage reservoir upper limit operating water level and the corresponding storage capacity of lower limit water level: 182.704 ten thousand m ³With 111.856 ten thousand m ³Total pump-out between upper storage reservoir upper limit operating water level and minimum first water storage level: 181.904 ten thousand m ³(finish draw water) by first prow time pump operating condition; Lower storage reservoir operating water level: total seepage discharge of 257.50～255.50m upper storage reservoir and 1# diversion water-carriage system: 0.072m ³/ s; Pump operating condition flow: the 52.6～51.8m that draws water first ³/ s; Pump operating condition guide vane opening: 13 °; Pump operating condition power input: 305～300MW; Hydraulic turbine idle condition 24h starting characteristics test total water amount: 70.848 ten thousand m ³Hydraulic turbine idle condition starting characteristics test operating head polishing: 505.68～500.9m; No load discharge: 8.2～8m ³/ s; Unloaded guide vane opening: 7 °～6.5 °

3, unit tail water system and spiral case filling water test:

3.1 inspection and operation before the water-filling: the fundamental purpose of unit filling water test is to check the percolating water situation of draft tube, machine set water guiding mechanism, spiral case, ball valve, waterwork, related seals, pressure measuring system pipeline.

(1) checks that affirmation 1# machine ball valve and 1# tail lock are in closed condition;

(2) the spiral case mandoor is confirmed in inspection, the draft tube mandoor is in closed condition and leakproofness is good;

(3) close spiral case, draft tube draining valve;

(4) check speed regulator, water distributor is in closed condition, drops into the servomotor locking;

(5) drop into hydraulic turbine main shaft maintenance sealing;

(6) drop into the generator mechanical braking;

(7) shutoff is intact to the supply channel of other units check to confirm the 1# machine;

(8) open 1# unit draft tube and spiral case vent valve.

3.2 tail water filling water test

(1) check that the tail water overhauling gate is in opening, the accident door is a closed condition.Open tail water accident door filling valve water-filling, monitor tailwater level at draft tube mandoor water drain valve and top cover pressure gauge place, record filling time and tailwater elevation are opened spiral case drainage for overhaul valve to the spiral case water-filling after no abnormal;

(2) check tailwater elevation following civil engineering position and each mandoor, top cover, pressure measurement pipeline etc. should be water-tight;

(3) must pay close attention to draft tube mandoor, water distributor and air shroud, water-turbine top cover, spiral case mandoor, spiral case drainpipe, ball valve telescopic joint, pressure measuring system pipeline etc. in the water filling process and locate ne-leakage, and the reading of record pressure gauge meter, if unusual circumstance, stop water-filling immediately, and the draft tube emptying is handled.

(4) be filled with water to behind the tail water concora crush (pressure reduction generally is no more than 0.02Mpa) and each several part normal after, close spiral case drainage for overhaul valve, do the terrain and the distant place actuation test of tail water door in the hydrostatic, qualified back promotes the tail water door to fully open position, the position of strobe indication is accurate, and record filling time, gate play, close the time and each table is counted displayed value.

(5) behind the tail water water-filling, withdraw from maintenance sealing, drop into the macro-axis working seal, carry out stator standard-sized sheet, complete shut-down action test under the measurement of main shaft seal float-amount and the hydrostatic state.

(6) complete shut-down stator, water intake ball valve carry out runner envelope inflation packer permeability test in off position, check whether action is reliable.Measure water level and be depressed into the following elevation required time of pump turbine, setting-out gas-holder pressure reduction value and pressure and return to the rated operating pressure required time, adhere to specification.

3.3 spiral case filling water test

(1) finishes the water-filling of diversion system, upper storage reservoir before the spiral case water-filling, and before the spiral case water-filling, carried out the actuation test in the inlet gate hydrostatic.

(2) the governing system forced oil device normally moves, and speed regulator is in manual position.

(3) slowly withdraw from the working seal of ball valve, to spiral case section water-filling, monitor the spiral case variation in water pressure in the water filling process, whether drainpipe leaks.

(4) in the water filling process, whether inspection spiral case mandoor, draining valve, top cover, each pressure gauge are taken into account pipeline and are leaked, and whether head cover drainage is unimpeded, and record also monitors each tensimeter meter reading in the hydraulic measuring system.Parameters such as record filling time, water level.

(5) behind the water-filling concora crush, carry out ball valve in terrain and a distant place and in hydrostatic, open and close service test, the record opening and closing time.After manual operation is qualified, carry out automatic service test.

(6) correctness of inspection tail water emergency gate and water intake ball valve interlock.

3.4 water logging factory building simulation test

(1) test objective is to check after factory building water level abnormality signal sends, upper storage reservoir gate, main water intaking valve, stator, tail water door emergency cut-off situation and sound and light alarm action situation.

(2) take measures before the test, stator should reliably be closed, and main water intaking valve, upper storage reservoir gate, tail water emergency gate are placed fully open position.

(3) simulation factory building water level abnormality level switch action, unit is receivable, and upper storage reservoir gate, tail water emergency gate, main water intaking valve, stator should be closed to the locking enabling signal, and full factory water logging factory building sound and light alarm should reliably send, and supervisory system shows should be correct.

4, unit pump operating condition test

4.1 the preparation before the unit starting

(1) the relevant relay protection of generator/motor, excitation system, SFC system and terrain supervisory system have been finished corresponding debugging on request, possess the bringing normally into operation condition; The stator insulation resistance of generator/motor meets the pump operating condition start request after tested; It is qualified that the problem that occurs when unit branch debugs has been handled;

(2) each position of main frame is cleaned out; The operation of each system of unit, checking experiment personnel have entered the post.Instrument and meters such as the vibration throw of unit have set up;

(3) each chilled water, lubricated water drop into, and hydraulic pressure, flow are normal; Lubricating oil system, process oil system works are normal; The oil groove oil level is normal, leakage of oil device place automated location;

(4) the high and low pressure compressed gas system is pressed the automated manner operation normally;

(5) drop into hydraulic turbine main shaft sealing water, list and index and repair blanket gas and be depressed into zero, start the hydraulic oil jacking system;

(6), reach the level of tail water, the operational factors such as initial temperature at pressure reduction, each position hydraulic pressure, flow etc. and each position on the record by the logout requirement;

(7) close ball valve, standard-sized sheet tail lock, unit runner envelope proceed step by step air inlet setting-out;

(8) oil gear is opened to speed regulator master delivery valve, hydraulic operation cabinet on pressure oil, and oil pressure, oil level are normal, and oil gear is in automated location; Speed regulator is cut " manually " position;

(9) the electric overspeed protection connection of unit pressing plate is thrown to signal location, and other each hydraulic protection, electric protection all drop into; The unit local control unit puts into operation, is in duty, and has inserted the external debug terminal.

4.2 static frequency changer (SFC) starting characteristics test

4.2.1 the inspection of starting outfit

(1) static frequency changer (SFC) starting outfit, control system are through stand the test, and withstand voltage test is passed through, and possesses the condition of putting into operation;

(2) detecting apparatus for rotor position, excitation unit check test are qualified, and the initial exciting current setting value of excitation unit adheres to specification;

(3) labyrinth ring chilled water and water ring unwatering system and spiral case water replanishing device check test are qualified about draft tube inflation compressed water generation apparatus, the runner.

4.2.2 static frequency changer (SFC) starts unit

(1) before the startup, affirmation water inlet ball valve is reliably closed; Technical water supply system is normal operation input; Each valve of Oil, Water, Gas system has placed the tram; Frequency converter, unit and utility appliance thereof have been in the startup standby condition; The hydraulic turbine/water pump runner is in the air; Thrust oil bearing high pressure oil jacking device puts into operation; Excitation system puts into operation.

(2) unit dynamic balancing measurement device has set up ready.

(3) frequency converter frequency is regulated the rated speed that is set in about 5%, close frequency converter input side isolating switch, and check that SFC output plug-in strip, output switch, 1# machine are dragged follow procedure combined floodgates such as plug-in strip.Start frequency converter, the pump operating condition direction turns clockwise for overlooking; Check during startup of unit that the unit rotating part has or not friction and strike note, whether vibration, throw, bearing bush temperature be unusual; SFC drags in the unit process, pay close attention to SFC input, output transformer operation normally.

(4) check main shaft seal water, whether labyrinth ring chilled water and water ring unwatering system normal up and down, whether the action of each Automation Elements reliable.

(5) under the rated speed about 5%, shut down, check the correctness of shutdown procedure and the reliability of clamping device action, rotating speed and be fed into the time that stops fully when the record clamping device drops into.

(6) start first, shutdown inspection qualified after, start is once more adjusted generating unit speed between 0 to 10%, checks frequency converter pulsing operation function, adjusts initial exciting current setting value and direct current output setting value, tries to achieve the optimum matching of the frequency converter and the parameter of electric machine; Check that frequency converter is carried out the transition to the working condition of the nature change of current and is adjusted to optimum condition by forced commutation.

(7) rotating speed of rising progressively step by step, the transient equilibrium of verification unit.Withdraw from mechanical brake before rotating speed rises, rotating speed drops at 5% o'clock and drops into mechanical brake again when shutting down, and is as follows.

(8) rise progressively rotating speed and be stabilized in 20% rated speed is checked electric measurement system and protective device working condition.

(9) after the passed examination, the rotating speed of rising progressively step by step is until rated speed.Check each position working order of unit.Check whether the action of draft tube inflation compressed water generation apparatus is reliable, the work period of record making-up air device, measures the unit shaft voltage under rated speed, rated voltage.

(10) recording unit rises to the time the rated speed process and records oscillograms such as generating unit speed, frequency converter rectification side electric current, stator current, stator voltage, rotor current, record from zero rotating speed.And, optimize frequency converter and excitation unit and regulate parameter according to oscillogram.

(11) under rated speed, carry out orderly closedown, check the correctness of shutdown procedure, and, check that electric braking drops into program and optimizes its parameter according to 4.2.3 electric braking test content.

(12) open automatically after the parameter optimization, engine cut off test.Start unit at terrain with automated manner, check the Auto Power On program correctness.Under rated speed, normally reach force outage, check the shutdown procedure correctness, record the demagnetization oscillogram, calculate de-excitation time-constant.

4.2.3 electric braking test

When (1) under rated speed, carrying out orderly closedown, carry out the test of unit electric braking, check unit electric braking function, relatively electric braking and normal brake application effect; Parameters such as the rotating speed when rotating speed, excitation and the stator current when measuring the input electric braking during test, input composite braking, total braking time make it to adhere to specification.

(2) main process and project: electric braking exciting current definite value is set at the value more less than rated current.Drop into electric braking in the process of shutting down, check whether the electric braking switch normally drops into, whether excitation system correct operation, and protection system should no abnormal reaction.Again the electric braking exciting current is returned to ratings, revision test.Be recorded in throw with the situation of not throwing electric braking under rotating speed decline situation, record electric braking timing input group stop time.

(3) the electric braking test can combine with other pilot projects and carry out.Notice in the braking procedure checking whether relay protection system receives correct operating mode mode signal.During initial test, should note the trip signal of de-preservation system, avoid mistake to jump main transformer to the GIS switchyard.

The test 4.2.4 automatic presynchronization is incorporated into the power networks

(1) finish unit starting test and parameter optimization after, open automatically, shut down with terrain and supervisory system mode, carry out the test same period, carry out the simulation test same period earlier, optimize frequency and voltage-regulation parameter, carry out formal simultaneous interconnecting after qualified to test.

(2) admission starts isolating switch, same period isolating switch action timing diagram; Check the correctness and the mensuration T.T. of instructing the same period to the completion logic loop same period from sending.

4.3 pump operating condition no-load test

(1) finish the test of the starting characteristics test and the same period after, carry out the no-load test of pump operating condition.

(2) start unit with SFC, unit stator close with the aerial state of runner under the operation that is connected to the grid.

(3) check each electric equipment operation situation, check the locking situation of differential protection polarity and relevant protective device action.

(4) check main shaft seal situation, draft tube inflation water pressuring system, labyrinth ring chilled water and water ring unwatering system working condition.

(5) check and monitor auxiliary system equipment operation situation and Oil, Water, Gas running situation, the record related data.

(6) measure unit power input, stator and rotor current, each position temperature of unit and unit vibration and throw value, the transient equilibrium after the electronic operating mode of verification unit is incorporated into the power networks.

(7) no-load running is measured each position temperature and thrust and guide bearing temperature and is no more than the design code value till the temperature stabilization.In service as find watt temperature phenomenon that sharply rises, answer hard stop.

(8) after stable, carry out the auto stop test, check the correctness of shutdown procedure.

4.4 pump operating condition bailing test

(1) finish unit starting test, the test same period and no-load test after, carry out the water pump bailing test.

(2) carry out bailing test before, diversion system and tail water system are checked comprehensively;

(3) check reservoir level up and down, its water level signal can correctly show in factory building;

Actual lift during (4) according to test is set the guide vane opening limits value.

(5) open the intake-outlet gate.

(6) start unit with SFC, unit is closed with runner at stator and is connected to the grid under the running status in air.

(7) operation unit inflation water pressuring system carries out exhaust, monitors the pressure between draft tube water level rising situation and stator and the runner, and admission pressure changes oscillogram, determines best opportunity and opening speed that stator is opened.

(8) press water intake ball valve and stator and open relation curve, open water intake ball valve and stator.

(9) admission parameters such as pressure, volute pressure, draft tube pressure, servomotor stroke between power input to machine, stator and runner when the zero flow operating mode carries out the transition to pumping operation mode; Lower bearing bracket, top cover, bearing bridge vibration and main shaft throw in the admission; The monitoring and protection devices type working condition, monitoring speed regulator actual operation parameters.

(10), stator is opened rule etc. revise and parameter optimization according to above-mentioned admission data and actual lift.

(11) after the pumping operation mode stable operation, measure power input to machine, guide vane opening, the flow that draws water, lift, unit vibration and throw, noise, spiral case, draft tube pressure and pressure fluctuation, each temperature of unit, cooling system flow and pressure, shaft voltage etc.Note monitoring upper storage reservoir water level rising situation simultaneously.

(12) draw the resultant curve of the hydraulic turbine/water pump according to the parameters such as power input, lift, flow and guide vane opening of actual measurement, and answer consistent with the curve ratio that manufacturing plant provides.

4.5 pump operating condition engine cut off test

(1) finish the pump operating condition bailing test after, carry out under the operating mode that water pump draws water orderly closedown test and force outage and test.

(2) unit moves under rated load, provides stop instruction at local control unit, checks automatic load-reducing and unit auto stop program correctness.

(3) write down sequential chart and rotary speed property and the overall time that master routine moves in the orderly closedown process, determine the tripping operation opportunity of isolating switch in the load shedding process.

(4) under the rated load; the force outage of simulation mechanical accident and electric protection action tripping isolating switch; check the correctness of pump operating condition load dump test shutdown procedure, check normal and mechanical accident break point clamping device input, the input of protective device and locking situation.

(5) parameters such as each position vibration of pressure, servomotor stroke, rotating speed, total down-time and unit and main shaft throw between electric current, voltage, guide vane opening, spiral case and draft tube pressure, stator and the runner of stator in the admission stopping process and rotor; and according to the oscillogram of above-mentioned parameter; revise the stator Closing Law, the optimizing process parameter.

5, unit generation working condition tests

5.1 the preparation before starting

It is qualified that the problem that occurs when (1) checking the starting of unit pump operating condition has been handled;

(2) operation of each system of unit, checking experiment personnel have entered the post, and instrument and meters such as the vibration throw of unit, dynamic balance measuring instrument have set up;

(3) top cover drainage system, senior middle school's low pressure compressed gas system are pressed the automated manner operation normally;

(4) each chilled water, lubricated water drop into, and hydraulic pressure, flow are normal; Lubricating oil system, process oil system works are normal; The oil groove oil level is normal, leakage of oil device place automated location; Drop into hydraulic turbine main shaft sealing water, the maintenance sealing is got rid of air pressure to zero;

(5), reach the level of tail water, the operational factors such as initial temperature at pressure reduction, each position hydraulic pressure, flow etc. and each position on the record by the logout requirement;

(6) start thrust bearing hydraulic oil jacking system, remove the unit mechanical braking, confirm braking slot signal and physical location correspondence; The unit detent is put manual control mode.

(7) oil gear is opened to speed regulator master delivery valve, hydraulic operation cabinet on pressure oil, and oil pressure is normal, and oil gear is in automated location; Speed regulator is cut " manually " position;

(8) disconnect generator outlet isolating switch, commutation disconnector, electric braking isolating switch and degaussing switch; Extract the collector ring carbon brush;

(9) the electric overspeed protection connection of unit pressing plate is thrown to signal location, and other each hydraulic protection is all thrown to protective position;

(10) the unit local control unit puts into operation, is in duty;

(11), connect a digital frequency meter, the monitoring generating unit speed at the generator outlet primary side temporarily; Frequency meter is placed on by the speed regulator regulator cubicle.

5.2 unit manually boots first

(1) the 1# water intake ball valve is an opening, extracts servomotor lock ingot, adopts the electric hand flowing mode slowly to open stator on the speed regulator regulator cubicle, treats that unit rotates the back guide vane closing.Check to have or not friction or collision situation between unit rotary part and the static position, and check the unit rotation direction, the generating operation mode direction is rotated counterclockwise for overlooking.

(2) manually slowly open stator to unit and begin to rotate, if no abnormal, continue to increase guide vane opening, manually opened stator starts unit to 10% rated speed, and operation 1min presses the emergency stop button and shuts down, and checks unit vibration, throw and temperature parameter; When rotating speed reaches 5%, manually drop into clamping device.

(3) if unit is no abnormal, manually opened once more stator starts unit, respectively moves 1min in 20%, 30%, 40% of rated speed, and 50% operation 20-30min in rated speed checks unit vibration, throw and bearing temperature rise situation; The check speed measuring device; The manual-lock stator carries out engine cut off test, observes the input situation of clamping device, record stopping process curve.

When (4) unit was no abnormal, manually opened once more stator started unit, makes unit 75% rated speed stable operation 5 minutes, checked unit bearing temperature rise, mechanical vibration.

(5) if no abnormal, continue to increase guide vane opening, make unit under 60%, 70%, 80%, 90% rated speed, respectively move 5 minutes, check the unit vibration situation.After generating unit speed reaches 90% rotating speed, can manually excise the hydraulic oil jacking system.

(6) if no abnormal, continue to increase guide vane opening, make unit stable operation under rated speed.The initial aperture and the no-load opening of the startup of record unit.Check the output of electrical rotate-speed contact, check the frequency indication; Measure the unit residual voltage.

(7) boosting velocity procedure should carry out in strict accordance with manufacturing plant's offer curves, should strictly monitor unit ruuning situation in the boosting velocity procedure, answers the hard stop inspection if meet abnormal conditions.

(8) in the boosting velocity procedure, each position bearing temperature is monitored.To rated speed, the bearing bush temperature of each one of unit of per 5 minutes records in half an hour, per 10 minutes records once write down once after 1 hour in 30 minutes after half an hour, drew the temperature rise curve of thrust and each guide bearing.

(9) raising speed and to the rated speed process monitors also throw value, the vibration values at each position of record unit, whether compliant requirement of inspection measurements; Monitor and write down each position oil level, oil pressure, water temperature, hydraulic pressure, flow equivalence.

(10) monitor hydraulic turbine main shaft sealing, record head cover drainage ruuning situation.

(11) the oil groove ruuning situation at each position of supervision unit indicates the operation oil level behind the temperature stabilization.

(12) measure generator primary side residual voltage and phase sequence, waveform is normal, and phase sequence is correct.

(13) in the unit starting process, as finding abnormal conditions hard stops such as metal bump sound, bearing bush temperature raise suddenly, the unit swing is excessive.

5.3 speed regulator adjustment test under the no-load running

(1) each position of unit stable after, carry out under the no-load running speed regulator adjustment test.

(2) one group of unloaded parameter of regulating is set, switches speed regulator operation extremely automatically, observe the steady and regulator stable of switching.Repeatedly carry out man-auto-manual switching at A channel and B passage, check the reliability of switching.The given setting range of frequency meets the requirements.

(3) under the automatic method of operation, the relative oscillating quantity of observation generating unit speed, the adjusting parameter of adjustment unit makes it to meet design, code requirement.

(4) speed regulator " frequency is given " is placed rated frequency, and preset one group and regulate parameter.Speed regulator moves automatically, and is stable at rated speed.Under different adjusting parameter combinations, observation can make the adjusting parameter area of set steady.

(5) unloaded speed regulator upset test down, respectively under different stable operation group parameter combinations, respectively with ± 1Hz, ± 2Hz, ± step amount of 4Hz carries out the unloaded upset test of speed regulator, the record adjusting time, regulates number of times, maximum overshoot, records the speed regulator disturbance waveform.Require maximum overshoot to be no more than 30% of rotating speed disturbance quantity; The overshoot number of times is no more than 2 times; Begin to adhere to specification from disturbance to the adjusting time that is no more than till the generating unit speed oscillating quantity.Choose optimum one group of no-load running and regulate parameter, under automatic adjustment state, record servomotor oscillating quantity and hunting period, record unit 3min fluctuation of speed value.Generating unit speed swing relative value is no more than ± and 0.15%.

(6) oscillating quantity and the hunting period of mensuration rotating speed behind set steady, record oil gear oil pump send the time and the work period of oil to oil tank and process oil pipeline system.

(7) behind the set steady, under rated speed, record vibrating numerical and exceed standard, need carry out the hydrogenerator dynamic balance running.

(8) the dynamic balance running purpose is to overcome because the mechanical vibration that the dynamic and static imbalance of rotor quality causes.Horizontal vibration double width value according to lower bearing bracket on the generator motor is calculated and is analyzed, and determines the counterweight amount and the position of rotor.Test after the counterweight, check the transient equilibrium situation, repetition test is until the vibration values requirement of conforming to the standard.Concrete test procedure and requirement are carried out according to makers' technological document.

5.4 the inspection after manual shut-down and the shutdown

(1) after set steady moves to each position temperature stabilization, carries out manual shut-down.

(2) manually drop into high pressure oil jacking device; At speed regulator regulator cubicle guide vane closing, make compressor emergency shutdown.When speed drop to 25% or producer's regulation rotating speed, manually drop into mechanical brake device until the unit stall.The brake off device resets detent.Manually behind the oily ejection device of excision, monitor the unit wriggling that do not have.

(3) in the stopping process, monitor each position temperature variations, tachometric relay action situation is recorded and is shut down rotating speed and time curve, checks each position oil groove pasta situation of change.

(4) shut down the back and drop into servomotor lock ingot and maintenance sealing, close spindle sealing lubrication water.The screw at inspection unit each position, particularly rotatable parts, pin, locking plate, key etc. have non-loosening, come off; Weld seam has or not abnormal conditions such as cracking; Check the brake disc wear situation, and correlation parameter is adjusted again.

The test 5.5 unit is overrun

(1) after the unit no-load running stand the test, and after shutdown inspection is qualified, carries out the unit test of overrunning.

(2) overrun and each overspeed protection contact of speed measuring device is protected the loop from the water organizational security and broken unit is electric, monitor its action situation with interim method.Drop into mechanical overspeed protection.

(3) manually start shooting to set steady and move.

(4) manually open big stator, unit raising speed to mechanic over speed protection device is moved.Check electricly in the boosting velocity procedure overrun, the unit speed measuring device is respectively overrun contact action situation and mechanical overspeed protection action situation.As when reaching machinery and overrunning definite value, unit does not shut down, then manual emergency shutdown.

(5) the record temperature rise situation of each bearing in the process of the test of overrunning.Measure unit vibration, throw, Wa Wen and gap.

(7) overrun after the off-test, after shutting down and carrying out safety practice, each parts of unit are overhauled comprehensively.

(8) overrun test according to manufacturing plant's requirement, finish dynamic balance running at unit and carry out after no abnormal, but before the test of overrunning carried out, speed regulator must not be put " automatically " mode and move.

5.6 unit does not have excitation Auto Power On and engine cut off test

(1) open automatically, the shutdown inspection project: the power-up sequence correctness; The working condition of thrust bearing hydraulic oil jacking system; Technical water supply drops into situation; The speed regulator working condition; Send time that power-on pulse to unit rotates and the time that reaches rated speed; The correctness of shutdown procedure; Send and shut down the pulse time required to speed drop to braked speed; The correctness that clamping device drops into automatically.

(2) before the start, confirm that speed regulator is in " automatically " position, power given is in " zero load " position, the given rated frequency that places of frequency; All the other parameters of speed regulator are in unloaded optimum position.

(3) before the start, confirm that each auxiliary device of unit is in " automatically " position.Confirm servomotor locking and detent physical location and automatic loop aligned phase signal, and drop into the hydraulic protection.

(4) other and Central Control Room carries out the Auto Power On of computer monitoring control mode at machine respectively.

(5) Simulated Water machine or electrical hazard are carried out the auto stop test.

5.7 unit up-flow test

5.7.1 the preparation before the generator up-flow

(1) drops into the protection of unit hydraulic;

(2) drop into the dynamic balancing measurement device;

(3) recover the collector ring of generator carbon brush;

(4) utilize generator outlet electric braking isolating switch that the three-phase shortcircuit point is set;

(5) field power supply becomes the system power supply of taking from the main transformer low-pressure side by 1# machine excitation.

5.7.2 test of generator up-flow and inspection item

(1) manually starting shooting to rated speed, works well in each position;

(2) manually close degaussing switch, by the manual up-flow of excitation unit; When making stator current rise to 10% rated current, confirm that each correlated current transformer secondary circuit does not have open circuit, continue up-flow with 25%, 50%, 100% rated current then.

(3) correctness and the symmetry of each current return of inspection generator;

(4) check the polarity of relay protection current return and the correctness of phase place, the wiring of table meter and indication;

(5) check degaussing switch tripping demagnetization situation, record demagnetization process oscillogram under the rated current;

(6) by every 10% rated secondary current record stator current and rotor current, record the generator three phase short circuit characteristic;

(7) vibration and the throw of measurement unit under the rated current of generator, the working condition of inspection carbon brush and collector ring;

5.7.3 generator insulating test and circuit drying

(1) measure stator winding over the ground, absorptance or polarization index, and according to insulating resistance value, absorb ratio or polarization index and whether judge needs generator drying; (absorptance is not less than 1.6 below 40 ℃ the time, and polarization index is between 1.5-2.0) 1# unit does not carry out drying in the insulation of SFC band startup of unit Pretesting.

(2) the generator short circuit drying is carried out in the requsst listed below: when dry per hour temperature rise be controlled at below 8 ℃, the stator maximum temperature is no more than 80 ℃, hot blast temperature is no more than 70 ℃.Close the air cooler chilled water when dry, stator current is controlled at 25%～50% of ratings.Insulation resistance meets the requirements and stablized 4～8 hours, stops drying.Carry out with 10 ℃ speed per hour when stopping dry cooling, when temperature is reduced to 40 ℃, can shut down.

(3) shut down the back and adjust the hydraulic pressure of air cooler to the designing requirement value.

(4) generator stator insulator resistance value, absorptance or polarization index are carried out repetition measurement.

5.8 pressure build-up test

5.8.1 the preparation before the unit pressure build-up test

(1) disconnect the electric braking isolating switch, commutation disconnector, startup disconnector and generator outlet isolating switch are all at open position;

(2) drop into the dynamo current protection, drop into utility appliance and signal circuit power supply;

(3) drop into stator winding office and put monitoring device and unit vibration, throw and air air gap monitoring device;

5.8.2 unit pressure build-up test and inspection item

(1) Auto Power On after stablizing, is measured residual voltage to free-runing operation, checks three-way voltage symmetry;

(2) manual voltage boosting to 25% rated voltage, measuring voltage loop secondary side phase sequence, phase place and magnitude of voltage; Check whether charging equipment work is normal;

(3) rise to 50% rated voltage, jump degaussing switch, record the demagnetization oscillogram.

(4) continue to rise to rated voltage, each vibration of unit, throw value; Measure generator shaft voltage, check shaft current and protector measuring voltage circuit secondary side phase sequence, phase place and magnitude of voltage; Check whether charging equipment work is normal;

(5) under the rated voltage, jump degaussing switch, record the demagnetization oscillogram;

(6) zero boosts, and every 10% rated voltage record stator voltage, rotor current and frequency, records unloaded upcurve;

(7) boost to and make exciting current when ratings, measure stator voltage (be the generator ceiling voltage this moment), the stator ceiling voltage can not surpass 1.3 times of stator rated voltage, and stop 5 minutes under this voltage, then drops to rated voltage;

(8) begin step-down by rated voltage,, record unloaded decline curve every 10% rated voltage record stator voltage, rotor current and frequency;

(9) establish the single-phase earthing point respectively in generator neutral point position and generator outlet position, manually add excitation, ground current to the protective device of rising progressively moves, and checks that earth protective device is dropped in the correct back of action.

(10) in excitation system rotor voltage loop, series connection standard resistance box ground connection, model rotor one point earth, verification rotor one-point grounding protection.

5.8.3 the unloaded adjustment and the test of field regulator down

(1) manual adjustments scope in excitation unit is adjusted: under the generator rated speed, excitation is in manual position, adjusts the range of control of the manual control module of excitation, and lower limit is not higher than 20% of off-load excitation voltage, and the upper limit is not less than 110% of rated excitation voltage.

(2) carry out automatic excitation test, record waveform, observe and open the process of encouraging, read and open the time of encouraging and dynamic adjustments quality.

(3) excitation is under the automated location, checks the voltage-regulation scope of excitation system.Automatic exciting regulator can be regulated by automatic steady under the unloaded rated voltage of 70%-110%.

(4) the manual and automatic switchover of unloaded inspection field regulator down; The master uses, alternate channel switches; The record ripple is observed the stationarity of switching.Should check before switching manually and automatic, passage between the tracking situation.

(5) field regulator input; Stability and overshoot under the situations such as the start of band field regulator, shutdown.

(6) unloaded 10% step response test down.Parameters such as the overshoot of check measurement automatic exciting regulator, overshoot number of times, adjusting time.

(7) unloaded generator voltage-frequency characteristic of recording the band automatic exciting regulator down.

(8) under automatic and manual dual mode, do the demagnetization test respectively.Generator voltage is risen to 100% ratings, and the change procedure of generator voltage, rotor current, voltage under degaussing switch and the inversion field suppression dual mode is jumped in admission, reads de-excitation time-constant on record ripple figure.

(9) field regulator underexcitation, cross encourage, PT broken string, overvoltage, overcurrent protective device adjustment and action simulation.

5.9 electric braking test

Owing under pump operating condition, finished the test of unit clamping device, therefore, under hydraulic turbine operating mode, only needed further to strengthen observing and follow-up work, with the clamping device work correctness of checking under hydraulic turbine operating mode.

5.10 unit is tested side by side

(1) before the formal test side by side of unit, simulates test arranged side by side earlier, carry out formal test side by side after qualified.The formal test side by side of unit must can be carried out after the agreement to system's application.

(2) the commutation disconnector is put " disconnection " position, removes commutation isolator operation power supply, removes the locking of commutation disconnector and generator outlet isolating switch.Remove the speed regulator signal that is incorporated into the power networks, supervisory system is sent out " shutdowns-generating " order start, carries out the simulation of unit and tests side by side, the supervision unit flow process of starting shooting, synchronous device input, breaker closing, speed regulator response situation.Check the synchronous device working condition, record generator voltage, system voltage, breaker closing timing chart simultaneously.The combined floodgate leading time according to oscillogram, is checked, adjusted to the tripping isolating switch.

(3) after the simulation stand the test arranged side by side, recover simulation related measure arranged side by side, close the commutation disconnector, carry out formal test side by side, recording system voltage, generator voltage, breaker closing pulse oscillogram.

5.11 unit load test

(1) unit band load dump test must can be carried out after the approval to system's application.

(2) the unit load test mainly comprises: under the unit on-load, unit and each position ruuning situation inspection, adjustment, vibration values are measured; Check is at speed regulator, excitation unit and with the correctness of computer supervisory control system adjustment load; The stability of speed regulator under power and speed control method under the on-load; The sudden load change test; Field regulator test etc. under the on-load.

(3) Auto Power On, after being connected to the grid, press respectively at unit local control unit position and host computer, increase burden with power step by step, observe the hydraulic generator unit, the generator controller switching equipment, main transformer, the ruuning situation of high-tension distribution equipments such as high-tension cable, check each instrument, the correctness of supervisory system indication is measured the vibration of unit under various loads, throw, each watt temperature, bearing temperature rise, the oil temperature, oil level, cooling water pressure, flow, reservoir level up and down, the draft tube force value, water inlet flow channel hydraulic pressure, the stator voltage electric current, the rotor voltage electric current, active power, reactive power, parameters such as generator noise.

(4) increasing and decreasing load under speed regulator aperture control and power state of a control respectively, the stability of unit in observation set steady and both the mutual handoff procedures.

(5) the speed regulator parameter adjustment is after optimum condition, increase or reduce suddenly load by the variable quantity that is no more than 25% rated load suddenly, automatically write down parameters such as transient process such as generating unit speed, volute pressure, Pressure Fluctuation in Draft Tube, servomotor stroke and variable power, the vibration situation when observing unit increase load.

(6) respectively under 0,50%, 100% specified active power state, field regulator is adjusted reactive power from zero to ratings, and adjusting should be steadily, nothing is beated.

(7) measure also calculating generator terminal voltage permanent speed regulation, its control characteristic has favorable linearity.

(8) under the guidance of system call, carry out power system stabilizer, PSS (PSS) and adjust test.

(9) regulate load or burden without work, respectively to the maximum exciting current of excitation unit, cross encourage, limiter such as underexcitation, V/f and protection test and adjust.

(10) Continuous Heat stable operation test under each stage load.

5.12 unit load dump test

(1) respectively under 25%, 50%, 75%, 100% rated load, carries out load dump test.By rules requirement record get rid of preceding, get rid of in, data such as generating unit speed, guide vane opening, stator shut-in time servomotor after getting rid of come and go that number of times, speed regulator are regulated the time, the throw of spiral case actual pressure, unit, vibration values, watt warm situation of change, and record relevant conditional curve, get rid of under the rated load demagnetization characteristic and record and get rid of under 25% rated load servomotor dead time etc.

Stability and the overshoot and the speed regulator dynamic adjustments performance etc. of field regulator when (2) checking removal of load.The servomotor emergency cut-off time when checking removal of load.

5.13 unit generation phase modulation and Continuous Heat stable operation test

(1) the generator operation as synchronous condenser operating mode of unit under the generator state has: shut down static-generating phase modulation, generating-generating phase modulation.

(2) before the test of unit generation phase modulation, carry out the phase modulation packer permeability test earlier.Whether with monitoring display consistent, write down the automatic tonifying Qi time interval if observing hydraulic valve action frequency and draft tube level switch state.After setting-out is finished, carry out exhaust by exhaust flow path, it is normal that level switch should show that water level rises.Each hand valve of pretest inspection water pressuring system is shown in an open position.Water pressuring system should be able to be finished double setting-out.

(3) unit is when generator operation as synchronous condenser, after the record stator is closed, and the runner active power that unit is consumed during running during free-runing operation and in air in water; Check inflation setting-out situation and making-up air device action situation; Check unit generator operation as synchronous condenser program correctness.

(4) check the correctness of each Automation Elements action when generating operation mode and phase modulation operating mode are switched mutually, write down operating mode switching time.

(5) check that generator reactive power is regulated situation under the unit generator operation as synchronous condenser operating mode, the record rotor current is the maximum output reactive power value under the zero power factor.

6, change working test and force outage test

6.1 local control unit is opened automatically, shutdown and operating condition transfer test

(1) carry out the opening automatically of various operating modes, engine cut off test by local control unit, comprise starting of static frequency conversion, unit by static to draw water, draw water to static, static to water pump phase modulation, water pump phase modulation to static etc.

(2) pump operating condition is normally transmitted the test of electrician's condition: unit carries out pump operating condition to the generating operation mode transfer test under running status; By frequency measuring device, artificially import the low frequency instruction, unit is changed to generating operation mode by pump operating condition, check the correctness of converse routine.

(3) pump operating condition is promptly transmitted the test of electrician's condition: stable operation under the unit pump operating condition; shut down with substep operation and automated manner respectively; behind the circuit breaker trip; stator closes to zero; rotating speed drops to about 5% rated speed at the brakeless state after; open stator, unit turns to raising speed to rated speed by generating.Inspection is shut down from water pump and is gone to the generating program correctness again.Repetition is after the isolating switch tripping, and under the state of different rotating speeds, different guide vane openings, each vibration under hydraulic brake of mensuration unit, throw, pressure fluctuation reached by this speed drop to the zero time.According to the measured value of various different rotating speeds, different guide vane openings, determine optimized parameters such as hydraulic brake intensity and unit vibration, throw, pressure fluctuation and switching time.Under optimized parameter, carry out the automatic conversion that pumping operation mode is promptly transmitted electrician's condition overall process, oscillograms such as unit vibration, throw and pressure fluctuation in the conversion of admission process.

(4) generating operation mode changes the pump operating condition test: unit carries out generating operation mode to the pump operating condition transfer test under the generator operation state.By frequency measuring device, artificially import the high-frequency instruction, unit is changed to pump operating condition by generating operation mode, check the correctness of converse routine.

(5) the water pump phase modulation and the running test of drawing water: carry out the change working test that the water pump phase modulation changes the commentaries on classics water pump phase modulation that draws water, draws water, check the correctness of converse routine.Unit stable operation under water pump phase modulation operating mode is carried out reactive power and is regulated test, checked encourage, whether underexcitation limiter protect setting range to adhere to specification.

6.2 the monitoring power station system opens automatically, shutdown, operating condition transfer test

(1) finish starting mode of pump, zero load, draw water, after the test such as change working, terrain control startup-shutdown, the parameter of actual measurement in the test and admission imported power station computer monitoring system after optimizing.

(2) utilize that power station computer monitoring system is opened automatically, engine cut off test and the test of various operating condition, check open automatically, the correctness of shutdown procedure and the correctness of operating condition converse routine; Check that the interface of upper and lower reservoir level signal, trash rack pressure difference signal etc. and monitoring power station system is whether normal and whether its effect stop instruction is reliable.

(3) unit open, in the stopping process and under normal operation, simulation station-service AC power disappears, and in station-service alternating current automatic switching procedure, does not influence the normal safe operation of unit.

6.3 unit force outage test

(1) finish unit on-load and load dump test after, to the test of system application force outage, test after the approval.

(2) respectively at (or under load of system's approval) simulation speed regulator low oil pressure emergency closure stator auto stop under the unit band rated load;

(3) (or under load of system's approval) under the unit band certain load (between the 25%-100% rated load), simulated accident action, unit removal of load, emergency cut-off ball valve test in the moving water.The record ball valve moves the shut-in time in the water, moves to the time of shutting down from ball valve.

The present invention adopts first prow time pump operating condition to start scheme, not only help saving engineering cost, and can also shift to an earlier date first unit operation generating, after draw water cost and other amortizations are deducted in generating in advance, according to the electric weight price is 0.168 yuan/kW.h, 300,000 kW unit generation amounts are by 5h every day, and it shifts to an earlier date power benefit and is about 2071.44 ten thousand yuan, and economic benefit is obvious.

Claims (5)

1. the first prow time pump operating condition of hydroenergy storage station is put in order group starting characteristics test method; comprise the test of unit pump operating condition, unit generation working condition tests, change working test and force outage test successively; it is characterized in that: at first carry out described unit pump operating condition test, described unit pump operating condition test may further comprise the steps:

A, pump operating condition no-load test: start unit with static frequency changer, unit stator close with the aerial state of runner under the operation that is connected to the grid; Measure unit power input, stator and rotor current, each position temperature of unit and unit vibration and throw value, the transient equilibrium after the electronic operating mode of verification unit is incorporated into the power networks; No-load running is measured each position temperature and thrust and guide bearing temperature till the temperature stabilization, and is in service as find watt temperature phenomenon that sharply rises, and answers hard stop, stable after, carry out the auto stop test, check the correctness of shutdown procedure;

B, pump operating condition bailing test: operation unit inflation water pressuring system carries out exhaust, monitors the pressure between draft tube water level rising situation and stator and the runner, and admission pressure changes oscillogram, determines best opportunity and opening speed that stator is opened; Press water intake ball valve and stator and open relation curve, open water intake ball valve and stator; The parameter of pressure, volute pressure, draft tube pressure, servomotor stroke between power input to machine, stator and runner when admission carries out the transition to pumping operation mode from the zero flow operating mode; Lower bearing bracket, top cover, bearing bridge vibration and main shaft throw in the admission; According to above-mentioned admission data and actual lift, stator is opened rule revise and parameter optimization; After the pumping operation mode stable operation, measure power input to machine, guide vane opening, the flow that draws water, lift, unit vibration and throw, noise, spiral case, draft tube pressure and pressure fluctuation, each temperature of unit, cooling system flow and pressure, shaft voltage; Draw the resultant curve of the hydraulic turbine/water pump according to the parameter of power input, lift, flow and the guide vane opening of actual measurement, and and the curve that provides of manufacturing plant compare;

C, pump operating condition engine cut off test: unit moves under rated load, provides stop instruction at local control unit, checks automatic load-reducing and unit auto stop program correctness; Write down sequential chart and the rotary speed property and the overall time of master routine action in the orderly closedown process, determine the tripping operation opportunity of isolating switch in the load shedding process; Under the rated load, the force outage of simulation mechanical accident and electric protection action tripping isolating switch, check the correctness of pump operating condition load dump test shutdown procedure, check normal and mechanical accident break point clamping device input, the input of protective device and locking situation; The parameter of each position vibration of pressure, servomotor stroke, rotating speed, total down-time and unit and main shaft throw between the stator in the admission stopping process and electric current, voltage, guide vane opening, spiral case and draft tube pressure, stator and the runner of rotor; and according to the oscillogram of above-mentioned parameter; revise the stator Closing Law, the optimizing process parameter.

2. the whole group of the first prow time pump operating condition of hydroenergy storage station according to claim 1 starting characteristics test method, it is characterized in that: carry out the test of being incorporated into the power networks of static frequency changer starting characteristics test, electric braking test and automatic presynchronization before the described pump operating condition no-load test earlier, may further comprise the steps successively:

A, the static frequency changer frequency adjustment is set in rated speed about 5%, closes static frequency changer input side isolating switch, start static frequency changer, the pump operating condition direction turns clockwise for overlooking; Under the rated speed about 5%, shut down, check the correctness of shutdown procedure and the reliability of clamping device action, rotating speed and be fed into the time that stops fully when the record clamping device drops into; Start first, shutdown inspection qualified after, start is once more adjusted generating unit speed between 0 to 10%, checks static frequency changer pulsing operation function, adjust initial exciting current setting value and direct current output setting value, try to achieve the optimum matching of the static frequency changer and the parameter of electric machine; Check that static frequency changer is carried out the transition to the working condition of the nature change of current and is adjusted to optimum condition by forced commutation; The rotating speed of rising progressively step by step, the transient equilibrium of verification unit, rotating speed withdraws from mechanical brake before rising, rotating speed drops at 5% o'clock and drops into mechanical brake again when shutting down, rise progressively rotating speed and be stabilized in 20% rated speed, check electric measurement system and protective device working condition, after the passed examination, the rotating speed of rising progressively step by step is until rated speed; Record the oscillogram that unit rises to the time the rated speed process and records generating unit speed, static frequency changer rectification side electric current, stator current, stator voltage, rotor current from zero rotating speed, record, and, optimize static frequency changer and excitation unit and regulate parameter according to oscillogram; Automatically open after the parameter optimization, engine cut off test, start unit at terrain with automated manner, check the Auto Power On program correctness, under rated speed, normally reach force outage, check the shutdown procedure correctness, record the demagnetization oscillogram, calculate de-excitation time-constant;

B, when under rated speed, carrying out orderly closedown, carry out the unit electric braking test: electric braking exciting current definite value is set at the value more less than rated current, in the process of shutting down, drop into electric braking, check whether the electric braking switch normally drops into, whether excitation system correct operation, protection system is answered no abnormal reaction, again the electric braking exciting current is returned to ratings, revision test, be recorded in throw with the situation of not throwing electric braking under rotating speed decline situation, record electric braking timing input group stop time;

C, finish unit starting test and parameter optimization after, automatically open, shut down with terrain and supervisory system mode, carry out the test same period, carry out the simulation test same period earlier, optimize frequency and voltage-regulation parameter, carry out the test of formal simultaneous interconnecting after qualified, admission starts isolating switch, same period isolating switch action timing diagram; Check the correctness and the mensuration T.T. of instructing the same period to the completion logic loop same period from sending.

3. the whole group of the first prow time pump operating condition of hydroenergy storage station according to claim 2 starting characteristics test method, it is characterized in that: described unit generation working condition tests may further comprise the steps:

A, unit manually boot first: manually slowly open stator to unit and begin to rotate, the generating operation mode direction is rotated counterclockwise for overlooking, if it is no abnormal, continue to increase guide vane opening, manually opened stator starts unit to 10% rated speed, operation 1min presses the emergency stop button and shuts down, and checks unit vibration, throw and temperature parameter; When rotating speed reaches 5%, manually drop into clamping device; If unit is no abnormal, manually opened once more stator starts unit, respectively move 1min in 20%, 30%, 40% of rated speed, 50% operation 20-30min in rated speed, check unit vibration, throw and bearing temperature rise situation, the check speed measuring device, the manual-lock stator carries out engine cut off test, observe the input situation of clamping device, record stopping process curve; When unit was no abnormal, manually opened once more stator started unit, makes unit 75% rated speed stable operation 5 minutes, checked unit bearing temperature rise, mechanical vibration; If no abnormal, continue to increase guide vane opening, make unit under 60%, 70%, 80%, 90% rated speed, respectively move 5 minutes, check the unit vibration situation, after generating unit speed reaches 90% rotating speed, can manually excise the hydraulic oil jacking system; If it is no abnormal, continue to increase guide vane opening, make unit stable operation under rated speed, should strictly monitor unit ruuning situation in the boosting velocity procedure, answer the hard stop inspection if meet abnormal conditions, the initial aperture and the no-load opening of the startup of record unit are checked the output of electrical rotate-speed contact, the unit residual voltage is measured in the indication of check frequency;

Speed regulator adjustment test under b, the no-load running: respectively under different stable operation group parameter combinations, respectively with ± 1Hz, ± 2Hz, ± step amount of 4Hz carries out the unloaded upset test of speed regulator, record adjusting time, adjusting number of times, maximum overshoot, record the speed regulator disturbance waveform, choose optimum one group of no-load running and regulate parameter, under automatic adjustment state, record servomotor oscillating quantity and hunting period, record unit 3min fluctuation of speed value, generating unit speed swing relative value be no more than ± and 0.15%; Behind the set steady, under rated speed, record vibrating numerical and exceed standard, need carry out the hydrogenerator dynamic balance running, to overcome the mechanical vibration that cause owing to the dynamic and static imbalance of rotor quality;

Test after c, manual shut-down and the shutdown: after set steady moves to each position temperature stabilization, manually drop into high pressure oil jacking device, at speed regulator regulator cubicle guide vane closing, make compressor emergency shutdown, when speed drop to 25% or producer's regulation rotating speed, manually drop into mechanical brake device until the unit stall, the brake off device resets detent, in the stopping process, monitor each position temperature variations, tachometric relay action situation is recorded and is shut down rotating speed and time curve, checks each position oil groove pasta situation of change;

D, the unit test of overrunning: overrun and each overspeed protection contact of speed measuring device is protected the loop from the water organizational security and broken unit is electric, monitor its action situation with interim method, drop into mechanical overspeed protection, manually start shooting to set steady and move, manually open big stator, unit raising speed to mechanic over speed protection device is moved, check electric overrunning in the boosting velocity procedure, unit speed measuring device respectively overrun contact action situation and mechanical overspeed protection action situation, as when reaching machinery and overrunning definite value, unit does not shut down, and then manual emergency shutdown is after the off-test of overrunning, after shutting down and carrying out safety practice, each parts of unit are overhauled comprehensively;

E, the test of unit up-flow: manually start shooting to rated speed, manually close degaussing switch after working well in each position, by the manual up-flow of excitation unit; When making stator current rise to 10% rated current, confirm that each correlated current transformer secondary circuit does not have open circuit, continue up-flow with 25%, 50%, 100% rated current then, check the correctness and the symmetry of each current return of generator, record demagnetization process oscillogram under the rated current, by writing down stator current and rotor current every 10% rated secondary current, record the generator three phase short circuit characteristic, under the rated current of generator, measure the vibration and the throw of unit, check the working condition of carbon brush and collector ring;

F, unit pressure build-up test: Auto Power On after stablizing, is measured residual voltage to free-runing operation, checks three-way voltage symmetry; Manual voltage boosting to 25% rated voltage, measuring voltage loop secondary side phase sequence, phase place and magnitude of voltage; Rise to 50% rated voltage, jump degaussing switch, record the demagnetization oscillogram, continue to rise to rated voltage, each vibration of unit, throw value; Measure generator shaft voltage, check shaft current and protector measuring voltage circuit secondary side phase sequence, phase place and magnitude of voltage; Check whether charging equipment work is normal; Under the rated voltage, jump degaussing switch, record the demagnetization oscillogram, zero boosts, and every 10% rated voltage record stator voltage, rotor current and frequency, records unloaded upcurve; Boost to and make exciting current when ratings, measure stator voltage, the stator ceiling voltage can not surpass 1.3 times of stator rated voltage, and stops 5 minutes under this voltage, then drops to rated voltage; Begin step-down by rated voltage,, record unloaded decline curve every 10% rated voltage record stator voltage, rotor current and frequency;

The adjustment and the test of field regulator under g, the zero load: the manual and automatic switchover of unloaded inspection field regulator down, the master uses, alternate channel switches, the record ripple is observed the stationarity of switching, under automatic and manual dual mode, do the demagnetization test respectively, generator voltage is risen to 100% ratings, the change procedure of generator voltage, rotor current, voltage under degaussing switch and the inversion field suppression dual mode is jumped in admission, reads de-excitation time-constant on record ripple figure;

H, unit is tested side by side: simulate test arranged side by side earlier, carry out formal test side by side after qualified again, the commutation disconnector is put " disconnection " position, remove commutation isolator operation power supply, remove the locking of commutation disconnector and generator outlet isolating switch, remove the speed regulator signal that is incorporated into the power networks, supervisory system is sent out " shutdown-generating " order start, carrying out the simulation of unit tests side by side, monitor unit start flow process, synchronous device input, breaker closing, the speed regulator response situation, check the synchronous device working condition, record generator voltage simultaneously, system voltage, the breaker closing timing chart, the tripping isolating switch is according to oscillogram, check, adjust the combined floodgate leading time, after simulating stand the test arranged side by side, recover simulation related measure arranged side by side, close the commutation disconnector, carry out formal test side by side, recording system voltage, generator voltage, breaker closing pulse oscillogram;

I, unit load test: Auto Power On, after being connected to the grid, press respectively at unit local control unit position and host computer, increase burden with power step by step, measure the vibration of unit under various loads, throw, each watt temperature, bearing temperature rise, oil temperature, oil level, cooling water pressure, flow, the parameter of reservoir level, draft tube force value, water inlet flow channel hydraulic pressure, stator voltage electric current, rotor voltage electric current, active power, reactive power, generator noise up and down; Increasing and decreasing load under speed regulator aperture control and power state of a control respectively, observe the stability of unit in set steady and both the mutual handoff procedures, the speed regulator parameter adjustment is after optimum condition, increase or reduce suddenly load by the variable quantity that is no more than 25% rated load suddenly, automatically write down generating unit speed, volute pressure, Pressure Fluctuation in Draft Tube, the parameter of the transient process of servomotor stroke and variable power, vibration situation when observing unit increase load, respectively 0,50%, under the 100% specified active power state, to ratings, adjusting should be steady from zero for field regulator adjustment reactive power, nothing is beated;

J, unit load dump test: respectively 25%, 50%, 75%, under 100% rated load, carry out load dump test, before getting rid of by rules requirement record, in getting rid of, generating unit speed after getting rid of, guide vane opening, stator shut-in time servomotor comes and goes number of times, speed regulator is regulated the time, the spiral case actual pressure, the throw of unit, vibration values, the data of watt warm situation of change, and record relevant conditional curve, get rid of under the rated load demagnetization characteristic and record and get rid of the servomotor dead time under 25% rated load, stability and the overshoot and the speed regulator dynamic adjustments performance of field regulator when checking removal of load, the servomotor emergency cut-off time when checking removal of load;

K, unit generation phase modulation and Continuous Heat stable operation test: the generator operation as synchronous condenser operating mode of unit under the generator state has shuts down static-generating phase modulation, generating-generating phase modulation, before the test of unit generation phase modulation, carry out the phase modulation packer permeability test earlier, whether observe hydraulic valve action frequency and draft tube level switch state consistent with monitoring display, write down the automatic tonifying Qi time interval, after setting-out is finished, carry out exhaust by exhaust flow path, it is normal that level switch should show that water level rises, each hand valve of pretest inspection water pressuring system is shown in an open position, water pressuring system should be able to be finished double setting-out, unit is when generator operation as synchronous condenser, and record is after stator closes, the runner active power that unit is consumed during running during free-runing operation and in air in water; Check inflation setting-out situation and making-up air device action situation; Check unit generator operation as synchronous condenser program correctness, check the correctness of each Automation Elements action when generating operation mode and phase modulation operating mode are switched mutually, record operating mode switching time, check under the unit generator operation as synchronous condenser operating mode, generator reactive power is regulated situation, and the record rotor current is the maximum output reactive power value under the zero power factor.

4. the whole group of the first prow time pump operating condition of hydroenergy storage station according to claim 3 starting characteristics test method, it is characterized in that: described change working test and force outage test may further comprise the steps:

A, local control unit are opened automatically, shutdown and operating condition transfer test, carry out the opening automatically of various operating modes, engine cut off test by local control unit, comprise starting of static frequency conversion, unit by static to draw water, draw water to static, static to water pump phase modulation, water pump phase modulation to static, pump operating condition is normally transmitted the test of electrician's condition: unit carries out pump operating condition to the generating operation mode transfer test under running status; Pass through frequency measuring device, the instruction of artificial input low frequency, unit is changed to generating operation mode by pump operating condition, check the correctness of converse routine, pump operating condition is promptly transmitted the test of electrician's condition: stable operation under the unit pump operating condition, shut down with substep operation and automated manner respectively, behind the circuit breaker trip, stator closes to zero, rotating speed drops to about 5% rated speed at the brakeless state after, open stator, unit turns to raising speed to rated speed by generating, inspection is shut down from water pump and is gone to the generating program correctness again, repetition is after the isolating switch tripping, different rotating speeds, under the state of different guide vane openings, measure unit each vibration under hydraulic brake, throw, pressure fluctuation reached by this speed drop to the zero time, according to various different rotating speeds, the measured value of different guide vane openings, determine hydraulic brake intensity and unit vibration, throw, the optimized parameter of pressure fluctuation and switching time, under optimized parameter, carry out the automatic conversion that pumping operation mode is promptly transmitted electrician's condition overall process, unit vibration in the conversion of admission process, the oscillogram of throw and pressure fluctuation, generating operation mode changes the pump operating condition test: unit carries out generating operation mode to the pump operating condition transfer test under the generator operation state; Pass through frequency measuring device, the instruction of artificial input high-frequency is changed by generating operation mode unit to pump operating condition, check the correctness of converse routine, the water pump phase modulation and the running test of drawing water: carry out the change working test that the water pump phase modulation changes the commentaries on classics water pump phase modulation that draws water, draws water, check the correctness of converse routine; Unit stable operation under water pump phase modulation operating mode is carried out reactive power and is regulated test, checked encourage, whether underexcitation limiter protect setting range to adhere to specification;

B, monitoring power station system open automatically, shutdown, operating condition transfer test: finish starting mode of pump, zero load, draw water, after the test of change working, terrain control startup-shutdown, the parameter of actual measurement in the test and admission is imported power station computer monitoring system after optimizing, utilize that power station computer monitoring system is opened automatically, engine cut off test and the test of various operating condition, check open automatically, the correctness of shutdown procedure and the correctness of operating condition converse routine; Check that the interface of upper and lower reservoir level signal, trash rack pressure difference signal and monitoring power station system is whether normal and whether its effect stop instruction is reliable, unit open, in the stopping process and under normal operation, simulation station-service AC power disappears, in station-service alternating current automatic switching procedure, do not influence the normal safe operation of unit;

C, the test of unit force outage: after finishing unit on-load and load dump test,, test after the approval, respectively simulation speed regulator low oil pressure emergency closure stator auto stop under unit band rated load to system's application force outage test; Under the unit band certain load, the simulated accident action, the unit removal of load, emergency cut-off ball valve test in the moving water, the record ball valve moves the shut-in time in the water, moves to the time of shutting down from ball valve.

5. the whole group of the first prow time pump operating condition of hydroenergy storage station according to claim 4 starting characteristics test method, it is characterized in that: it is 491.73～505.78m that described pump operating condition starts range of lift; The minimum first water storage level of pump operating condition upper storage reservoir is 749.20m; The pump operating condition flow that draws water is 52.6～51.8m ³/ s; The pump operating condition guide vane opening is 13 °; The pump operating condition power input is 305～300MW; Hydraulic turbine idle condition 24h starting characteristics test total water amount is 70.848 ten thousand m ³ Hydraulic turbine idle condition starting characteristics test operating head polishing is 505.68～500.9m, and no load discharge is 8.2～8m ³/ s, unloaded guide vane opening is 7 °～6.5 °.